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sftpfs/file1
sftpfs/test/

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sudo: false
language: go
arch:
- amd64
- ppc64e
go:
- "1.14"
- "1.15"
- "1.16"
- tip
os:
- linux
- osx
matrix:
allow_failures:
- go: tip
fast_finish: true
script:
- go build -v ./...
- go test -count=1 -cover -race -v ./...
- go vet ./...
- FILES=$(gofmt -s -l . zipfs sftpfs mem tarfs); if [[ -n "${FILES}" ]]; then echo "You have go format errors; gofmt your changes"; exit 1; fi

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![afero logo-sm](https://cloud.githubusercontent.com/assets/173412/11490338/d50e16dc-97a5-11e5-8b12-019a300d0fcb.png)
A FileSystem Abstraction System for Go
[![Build Status](https://travis-ci.org/spf13/afero.svg)](https://travis-ci.org/spf13/afero) [![Build status](https://ci.appveyor.com/api/projects/status/github/spf13/afero?branch=master&svg=true)](https://ci.appveyor.com/project/spf13/afero) [![GoDoc](https://godoc.org/github.com/spf13/afero?status.svg)](https://godoc.org/github.com/spf13/afero) [![Join the chat at https://gitter.im/spf13/afero](https://badges.gitter.im/Dev%20Chat.svg)](https://gitter.im/spf13/afero?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
# Overview
Afero is a filesystem framework providing a simple, uniform and universal API
interacting with any filesystem, as an abstraction layer providing interfaces,
types and methods. Afero has an exceptionally clean interface and simple design
without needless constructors or initialization methods.
Afero is also a library providing a base set of interoperable backend
filesystems that make it easy to work with afero while retaining all the power
and benefit of the os and ioutil packages.
Afero provides significant improvements over using the os package alone, most
notably the ability to create mock and testing filesystems without relying on the disk.
It is suitable for use in any situation where you would consider using the OS
package as it provides an additional abstraction that makes it easy to use a
memory backed file system during testing. It also adds support for the http
filesystem for full interoperability.
## Afero Features
* A single consistent API for accessing a variety of filesystems
* Interoperation between a variety of file system types
* A set of interfaces to encourage and enforce interoperability between backends
* An atomic cross platform memory backed file system
* Support for compositional (union) file systems by combining multiple file systems acting as one
* Specialized backends which modify existing filesystems (Read Only, Regexp filtered)
* A set of utility functions ported from io, ioutil & hugo to be afero aware
* Wrapper for go 1.16 filesystem abstraction `io/fs.FS`
# Using Afero
Afero is easy to use and easier to adopt.
A few different ways you could use Afero:
* Use the interfaces alone to define your own file system.
* Wrapper for the OS packages.
* Define different filesystems for different parts of your application.
* Use Afero for mock filesystems while testing
## Step 1: Install Afero
First use go get to install the latest version of the library.
$ go get github.com/spf13/afero
Next include Afero in your application.
```go
import "github.com/spf13/afero"
```
## Step 2: Declare a backend
First define a package variable and set it to a pointer to a filesystem.
```go
var AppFs = afero.NewMemMapFs()
or
var AppFs = afero.NewOsFs()
```
It is important to note that if you repeat the composite literal you
will be using a completely new and isolated filesystem. In the case of
OsFs it will still use the same underlying filesystem but will reduce
the ability to drop in other filesystems as desired.
## Step 3: Use it like you would the OS package
Throughout your application use any function and method like you normally
would.
So if my application before had:
```go
os.Open("/tmp/foo")
```
We would replace it with:
```go
AppFs.Open("/tmp/foo")
```
`AppFs` being the variable we defined above.
## List of all available functions
File System Methods Available:
```go
Chmod(name string, mode os.FileMode) : error
Chown(name string, uid, gid int) : error
Chtimes(name string, atime time.Time, mtime time.Time) : error
Create(name string) : File, error
Mkdir(name string, perm os.FileMode) : error
MkdirAll(path string, perm os.FileMode) : error
Name() : string
Open(name string) : File, error
OpenFile(name string, flag int, perm os.FileMode) : File, error
Remove(name string) : error
RemoveAll(path string) : error
Rename(oldname, newname string) : error
Stat(name string) : os.FileInfo, error
```
File Interfaces and Methods Available:
```go
io.Closer
io.Reader
io.ReaderAt
io.Seeker
io.Writer
io.WriterAt
Name() : string
Readdir(count int) : []os.FileInfo, error
Readdirnames(n int) : []string, error
Stat() : os.FileInfo, error
Sync() : error
Truncate(size int64) : error
WriteString(s string) : ret int, err error
```
In some applications it may make sense to define a new package that
simply exports the file system variable for easy access from anywhere.
## Using Afero's utility functions
Afero provides a set of functions to make it easier to use the underlying file systems.
These functions have been primarily ported from io & ioutil with some developed for Hugo.
The afero utilities support all afero compatible backends.
The list of utilities includes:
```go
DirExists(path string) (bool, error)
Exists(path string) (bool, error)
FileContainsBytes(filename string, subslice []byte) (bool, error)
GetTempDir(subPath string) string
IsDir(path string) (bool, error)
IsEmpty(path string) (bool, error)
ReadDir(dirname string) ([]os.FileInfo, error)
ReadFile(filename string) ([]byte, error)
SafeWriteReader(path string, r io.Reader) (err error)
TempDir(dir, prefix string) (name string, err error)
TempFile(dir, prefix string) (f File, err error)
Walk(root string, walkFn filepath.WalkFunc) error
WriteFile(filename string, data []byte, perm os.FileMode) error
WriteReader(path string, r io.Reader) (err error)
```
For a complete list see [Afero's GoDoc](https://godoc.org/github.com/spf13/afero)
They are available under two different approaches to use. You can either call
them directly where the first parameter of each function will be the file
system, or you can declare a new `Afero`, a custom type used to bind these
functions as methods to a given filesystem.
### Calling utilities directly
```go
fs := new(afero.MemMapFs)
f, err := afero.TempFile(fs,"", "ioutil-test")
```
### Calling via Afero
```go
fs := afero.NewMemMapFs()
afs := &afero.Afero{Fs: fs}
f, err := afs.TempFile("", "ioutil-test")
```
## Using Afero for Testing
There is a large benefit to using a mock filesystem for testing. It has a
completely blank state every time it is initialized and can be easily
reproducible regardless of OS. You could create files to your heart’s content
and the file access would be fast while also saving you from all the annoying
issues with deleting temporary files, Windows file locking, etc. The MemMapFs
backend is perfect for testing.
* Much faster than performing I/O operations on disk
* Avoid security issues and permissions
* Far more control. 'rm -rf /' with confidence
* Test setup is far more easier to do
* No test cleanup needed
One way to accomplish this is to define a variable as mentioned above.
In your application this will be set to afero.NewOsFs() during testing you
can set it to afero.NewMemMapFs().
It wouldn't be uncommon to have each test initialize a blank slate memory
backend. To do this I would define my `appFS = afero.NewOsFs()` somewhere
appropriate in my application code. This approach ensures that Tests are order
independent, with no test relying on the state left by an earlier test.
Then in my tests I would initialize a new MemMapFs for each test:
```go
func TestExist(t *testing.T) {
appFS := afero.NewMemMapFs()
// create test files and directories
appFS.MkdirAll("src/a", 0755)
afero.WriteFile(appFS, "src/a/b", []byte("file b"), 0644)
afero.WriteFile(appFS, "src/c", []byte("file c"), 0644)
name := "src/c"
_, err := appFS.Stat(name)
if os.IsNotExist(err) {
t.Errorf("file \"%s\" does not exist.\n", name)
}
}
```
# Available Backends
## Operating System Native
### OsFs
The first is simply a wrapper around the native OS calls. This makes it
very easy to use as all of the calls are the same as the existing OS
calls. It also makes it trivial to have your code use the OS during
operation and a mock filesystem during testing or as needed.
```go
appfs := afero.NewOsFs()
appfs.MkdirAll("src/a", 0755)
```
## Memory Backed Storage
### MemMapFs
Afero also provides a fully atomic memory backed filesystem perfect for use in
mocking and to speed up unnecessary disk io when persistence isn’t
necessary. It is fully concurrent and will work within go routines
safely.
```go
mm := afero.NewMemMapFs()
mm.MkdirAll("src/a", 0755)
```
#### InMemoryFile
As part of MemMapFs, Afero also provides an atomic, fully concurrent memory
backed file implementation. This can be used in other memory backed file
systems with ease. Plans are to add a radix tree memory stored file
system using InMemoryFile.
## Network Interfaces
### SftpFs
Afero has experimental support for secure file transfer protocol (sftp). Which can
be used to perform file operations over a encrypted channel.
### GCSFs
Afero has experimental support for Google Cloud Storage (GCS). You can either set the
`GOOGLE_APPLICATION_CREDENTIALS_JSON` env variable to your JSON credentials or use `opts` in
`NewGcsFS` to configure access to your GCS bucket.
Some known limitations of the existing implementation:
* No Chmod support - The GCS ACL could probably be mapped to *nix style permissions but that would add another level of complexity and is ignored in this version.
* No Chtimes support - Could be simulated with attributes (gcs a/m-times are set implicitly) but that's is left for another version.
* Not thread safe - Also assumes all file operations are done through the same instance of the GcsFs. File operations between different GcsFs instances are not guaranteed to be consistent.
## Filtering Backends
### BasePathFs
The BasePathFs restricts all operations to a given path within an Fs.
The given file name to the operations on this Fs will be prepended with
the base path before calling the source Fs.
```go
bp := afero.NewBasePathFs(afero.NewOsFs(), "/base/path")
```
### ReadOnlyFs
A thin wrapper around the source Fs providing a read only view.
```go
fs := afero.NewReadOnlyFs(afero.NewOsFs())
_, err := fs.Create("/file.txt")
// err = syscall.EPERM
```
# RegexpFs
A filtered view on file names, any file NOT matching
the passed regexp will be treated as non-existing.
Files not matching the regexp provided will not be created.
Directories are not filtered.
```go
fs := afero.NewRegexpFs(afero.NewMemMapFs(), regexp.MustCompile(`\.txt$`))
_, err := fs.Create("/file.html")
// err = syscall.ENOENT
```
### HttpFs
Afero provides an http compatible backend which can wrap any of the existing
backends.
The Http package requires a slightly specific version of Open which
returns an http.File type.
Afero provides an httpFs file system which satisfies this requirement.
Any Afero FileSystem can be used as an httpFs.
```go
httpFs := afero.NewHttpFs(<ExistingFS>)
fileserver := http.FileServer(httpFs.Dir(<PATH>))
http.Handle("/", fileserver)
```
## Composite Backends
Afero provides the ability have two filesystems (or more) act as a single
file system.
### CacheOnReadFs
The CacheOnReadFs will lazily make copies of any accessed files from the base
layer into the overlay. Subsequent reads will be pulled from the overlay
directly permitting the request is within the cache duration of when it was
created in the overlay.
If the base filesystem is writeable, any changes to files will be
done first to the base, then to the overlay layer. Write calls to open file
handles like `Write()` or `Truncate()` to the overlay first.
To writing files to the overlay only, you can use the overlay Fs directly (not
via the union Fs).
Cache files in the layer for the given time.Duration, a cache duration of 0
means "forever" meaning the file will not be re-requested from the base ever.
A read-only base will make the overlay also read-only but still copy files
from the base to the overlay when they're not present (or outdated) in the
caching layer.
```go
base := afero.NewOsFs()
layer := afero.NewMemMapFs()
ufs := afero.NewCacheOnReadFs(base, layer, 100 * time.Second)
```
### CopyOnWriteFs()
The CopyOnWriteFs is a read only base file system with a potentially
writeable layer on top.
Read operations will first look in the overlay and if not found there, will
serve the file from the base.
Changes to the file system will only be made in the overlay.
Any attempt to modify a file found only in the base will copy the file to the
overlay layer before modification (including opening a file with a writable
handle).
Removing and Renaming files present only in the base layer is not currently
permitted. If a file is present in the base layer and the overlay, only the
overlay will be removed/renamed.
```go
base := afero.NewOsFs()
roBase := afero.NewReadOnlyFs(base)
ufs := afero.NewCopyOnWriteFs(roBase, afero.NewMemMapFs())
fh, _ = ufs.Create("/home/test/file2.txt")
fh.WriteString("This is a test")
fh.Close()
```
In this example all write operations will only occur in memory (MemMapFs)
leaving the base filesystem (OsFs) untouched.
## Desired/possible backends
The following is a short list of possible backends we hope someone will
implement:
* SSH
* S3
# About the project
## What's in the name
Afero comes from the latin roots Ad-Facere.
**"Ad"** is a prefix meaning "to".
**"Facere"** is a form of the root "faciō" making "make or do".
The literal meaning of afero is "to make" or "to do" which seems very fitting
for a library that allows one to make files and directories and do things with them.
The English word that shares the same roots as Afero is "affair". Affair shares
the same concept but as a noun it means "something that is made or done" or "an
object of a particular type".
It's also nice that unlike some of my other libraries (hugo, cobra, viper) it
Googles very well.
## Release Notes
See the [Releases Page](https://github.com/spf13/afero/releases).
## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
## Contributors
Names in no particular order:
* [spf13](https://github.com/spf13)
* [jaqx0r](https://github.com/jaqx0r)
* [mbertschler](https://github.com/mbertschler)
* [xor-gate](https://github.com/xor-gate)
## License
Afero is released under the Apache 2.0 license. See
[LICENSE.txt](https://github.com/spf13/afero/blob/master/LICENSE.txt)

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// Copyright © 2014 Steve Francia <spf@spf13.com>.
// Copyright 2013 tsuru authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package afero provides types and methods for interacting with the filesystem,
// as an abstraction layer.
// Afero also provides a few implementations that are mostly interoperable. One that
// uses the operating system filesystem, one that uses memory to store files
// (cross platform) and an interface that should be implemented if you want to
// provide your own filesystem.
package afero
import (
"errors"
"io"
"os"
"time"
)
type Afero struct {
Fs
}
// File represents a file in the filesystem.
type File interface {
io.Closer
io.Reader
io.ReaderAt
io.Seeker
io.Writer
io.WriterAt
Name() string
Readdir(count int) ([]os.FileInfo, error)
Readdirnames(n int) ([]string, error)
Stat() (os.FileInfo, error)
Sync() error
Truncate(size int64) error
WriteString(s string) (ret int, err error)
}
// Fs is the filesystem interface.
//
// Any simulated or real filesystem should implement this interface.
type Fs interface {
// Create creates a file in the filesystem, returning the file and an
// error, if any happens.
Create(name string) (File, error)
// Mkdir creates a directory in the filesystem, return an error if any
// happens.
Mkdir(name string, perm os.FileMode) error
// MkdirAll creates a directory path and all parents that does not exist
// yet.
MkdirAll(path string, perm os.FileMode) error
// Open opens a file, returning it or an error, if any happens.
Open(name string) (File, error)
// OpenFile opens a file using the given flags and the given mode.
OpenFile(name string, flag int, perm os.FileMode) (File, error)
// Remove removes a file identified by name, returning an error, if any
// happens.
Remove(name string) error
// RemoveAll removes a directory path and any children it contains. It
// does not fail if the path does not exist (return nil).
RemoveAll(path string) error
// Rename renames a file.
Rename(oldname, newname string) error
// Stat returns a FileInfo describing the named file, or an error, if any
// happens.
Stat(name string) (os.FileInfo, error)
// The name of this FileSystem
Name() string
// Chmod changes the mode of the named file to mode.
Chmod(name string, mode os.FileMode) error
// Chown changes the uid and gid of the named file.
Chown(name string, uid, gid int) error
//Chtimes changes the access and modification times of the named file
Chtimes(name string, atime time.Time, mtime time.Time) error
}
var (
ErrFileClosed = errors.New("File is closed")
ErrOutOfRange = errors.New("Out of range")
ErrTooLarge = errors.New("Too large")
ErrFileNotFound = os.ErrNotExist
ErrFileExists = os.ErrExist
ErrDestinationExists = os.ErrExist
)

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vendor/github.com/spf13/afero/appveyor.yml generated vendored Normal file
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@ -0,0 +1,15 @@
version: '{build}'
clone_folder: C:\gopath\src\github.com\spf13\afero
environment:
GOPATH: C:\gopath
build_script:
- cmd: >-
go version
go env
go get -v github.com/spf13/afero/...
go build -v github.com/spf13/afero/...
test_script:
- cmd: go test -count=1 -cover -race -v github.com/spf13/afero/...

211
vendor/github.com/spf13/afero/basepath.go generated vendored Normal file
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package afero
import (
"os"
"path/filepath"
"runtime"
"strings"
"time"
)
var _ Lstater = (*BasePathFs)(nil)
// The BasePathFs restricts all operations to a given path within an Fs.
// The given file name to the operations on this Fs will be prepended with
// the base path before calling the base Fs.
// Any file name (after filepath.Clean()) outside this base path will be
// treated as non existing file.
//
// Note that it does not clean the error messages on return, so you may
// reveal the real path on errors.
type BasePathFs struct {
source Fs
path string
}
type BasePathFile struct {
File
path string
}
func (f *BasePathFile) Name() string {
sourcename := f.File.Name()
return strings.TrimPrefix(sourcename, filepath.Clean(f.path))
}
func NewBasePathFs(source Fs, path string) Fs {
return &BasePathFs{source: source, path: path}
}
// on a file outside the base path it returns the given file name and an error,
// else the given file with the base path prepended
func (b *BasePathFs) RealPath(name string) (path string, err error) {
if err := validateBasePathName(name); err != nil {
return name, err
}
bpath := filepath.Clean(b.path)
path = filepath.Clean(filepath.Join(bpath, name))
if !strings.HasPrefix(path, bpath) {
return name, os.ErrNotExist
}
return path, nil
}
func validateBasePathName(name string) error {
if runtime.GOOS != "windows" {
// Not much to do here;
// the virtual file paths all look absolute on *nix.
return nil
}
// On Windows a common mistake would be to provide an absolute OS path
// We could strip out the base part, but that would not be very portable.
if filepath.IsAbs(name) {
return os.ErrNotExist
}
return nil
}
func (b *BasePathFs) Chtimes(name string, atime, mtime time.Time) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "chtimes", Path: name, Err: err}
}
return b.source.Chtimes(name, atime, mtime)
}
func (b *BasePathFs) Chmod(name string, mode os.FileMode) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "chmod", Path: name, Err: err}
}
return b.source.Chmod(name, mode)
}
func (b *BasePathFs) Chown(name string, uid, gid int) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "chown", Path: name, Err: err}
}
return b.source.Chown(name, uid, gid)
}
func (b *BasePathFs) Name() string {
return "BasePathFs"
}
func (b *BasePathFs) Stat(name string) (fi os.FileInfo, err error) {
if name, err = b.RealPath(name); err != nil {
return nil, &os.PathError{Op: "stat", Path: name, Err: err}
}
return b.source.Stat(name)
}
func (b *BasePathFs) Rename(oldname, newname string) (err error) {
if oldname, err = b.RealPath(oldname); err != nil {
return &os.PathError{Op: "rename", Path: oldname, Err: err}
}
if newname, err = b.RealPath(newname); err != nil {
return &os.PathError{Op: "rename", Path: newname, Err: err}
}
return b.source.Rename(oldname, newname)
}
func (b *BasePathFs) RemoveAll(name string) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "remove_all", Path: name, Err: err}
}
return b.source.RemoveAll(name)
}
func (b *BasePathFs) Remove(name string) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "remove", Path: name, Err: err}
}
return b.source.Remove(name)
}
func (b *BasePathFs) OpenFile(name string, flag int, mode os.FileMode) (f File, err error) {
if name, err = b.RealPath(name); err != nil {
return nil, &os.PathError{Op: "openfile", Path: name, Err: err}
}
sourcef, err := b.source.OpenFile(name, flag, mode)
if err != nil {
return nil, err
}
return &BasePathFile{sourcef, b.path}, nil
}
func (b *BasePathFs) Open(name string) (f File, err error) {
if name, err = b.RealPath(name); err != nil {
return nil, &os.PathError{Op: "open", Path: name, Err: err}
}
sourcef, err := b.source.Open(name)
if err != nil {
return nil, err
}
return &BasePathFile{File: sourcef, path: b.path}, nil
}
func (b *BasePathFs) Mkdir(name string, mode os.FileMode) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "mkdir", Path: name, Err: err}
}
return b.source.Mkdir(name, mode)
}
func (b *BasePathFs) MkdirAll(name string, mode os.FileMode) (err error) {
if name, err = b.RealPath(name); err != nil {
return &os.PathError{Op: "mkdir", Path: name, Err: err}
}
return b.source.MkdirAll(name, mode)
}
func (b *BasePathFs) Create(name string) (f File, err error) {
if name, err = b.RealPath(name); err != nil {
return nil, &os.PathError{Op: "create", Path: name, Err: err}
}
sourcef, err := b.source.Create(name)
if err != nil {
return nil, err
}
return &BasePathFile{File: sourcef, path: b.path}, nil
}
func (b *BasePathFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
name, err := b.RealPath(name)
if err != nil {
return nil, false, &os.PathError{Op: "lstat", Path: name, Err: err}
}
if lstater, ok := b.source.(Lstater); ok {
return lstater.LstatIfPossible(name)
}
fi, err := b.source.Stat(name)
return fi, false, err
}
func (b *BasePathFs) SymlinkIfPossible(oldname, newname string) error {
oldname, err := b.RealPath(oldname)
if err != nil {
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: err}
}
newname, err = b.RealPath(newname)
if err != nil {
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: err}
}
if linker, ok := b.source.(Linker); ok {
return linker.SymlinkIfPossible(oldname, newname)
}
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
}
func (b *BasePathFs) ReadlinkIfPossible(name string) (string, error) {
name, err := b.RealPath(name)
if err != nil {
return "", &os.PathError{Op: "readlink", Path: name, Err: err}
}
if reader, ok := b.source.(LinkReader); ok {
return reader.ReadlinkIfPossible(name)
}
return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
}

315
vendor/github.com/spf13/afero/cacheOnReadFs.go generated vendored Normal file
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package afero
import (
"os"
"syscall"
"time"
)
// If the cache duration is 0, cache time will be unlimited, i.e. once
// a file is in the layer, the base will never be read again for this file.
//
// For cache times greater than 0, the modification time of a file is
// checked. Note that a lot of file system implementations only allow a
// resolution of a second for timestamps... or as the godoc for os.Chtimes()
// states: "The underlying filesystem may truncate or round the values to a
// less precise time unit."
//
// This caching union will forward all write calls also to the base file
// system first. To prevent writing to the base Fs, wrap it in a read-only
// filter - Note: this will also make the overlay read-only, for writing files
// in the overlay, use the overlay Fs directly, not via the union Fs.
type CacheOnReadFs struct {
base Fs
layer Fs
cacheTime time.Duration
}
func NewCacheOnReadFs(base Fs, layer Fs, cacheTime time.Duration) Fs {
return &CacheOnReadFs{base: base, layer: layer, cacheTime: cacheTime}
}
type cacheState int
const (
// not present in the overlay, unknown if it exists in the base:
cacheMiss cacheState = iota
// present in the overlay and in base, base file is newer:
cacheStale
// present in the overlay - with cache time == 0 it may exist in the base,
// with cacheTime > 0 it exists in the base and is same age or newer in the
// overlay
cacheHit
// happens if someone writes directly to the overlay without
// going through this union
cacheLocal
)
func (u *CacheOnReadFs) cacheStatus(name string) (state cacheState, fi os.FileInfo, err error) {
var lfi, bfi os.FileInfo
lfi, err = u.layer.Stat(name)
if err == nil {
if u.cacheTime == 0 {
return cacheHit, lfi, nil
}
if lfi.ModTime().Add(u.cacheTime).Before(time.Now()) {
bfi, err = u.base.Stat(name)
if err != nil {
return cacheLocal, lfi, nil
}
if bfi.ModTime().After(lfi.ModTime()) {
return cacheStale, bfi, nil
}
}
return cacheHit, lfi, nil
}
if err == syscall.ENOENT || os.IsNotExist(err) {
return cacheMiss, nil, nil
}
return cacheMiss, nil, err
}
func (u *CacheOnReadFs) copyToLayer(name string) error {
return copyToLayer(u.base, u.layer, name)
}
func (u *CacheOnReadFs) copyFileToLayer(name string, flag int, perm os.FileMode) error {
return copyFileToLayer(u.base, u.layer, name, flag, perm)
}
func (u *CacheOnReadFs) Chtimes(name string, atime, mtime time.Time) error {
st, _, err := u.cacheStatus(name)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit:
err = u.base.Chtimes(name, atime, mtime)
case cacheStale, cacheMiss:
if err := u.copyToLayer(name); err != nil {
return err
}
err = u.base.Chtimes(name, atime, mtime)
}
if err != nil {
return err
}
return u.layer.Chtimes(name, atime, mtime)
}
func (u *CacheOnReadFs) Chmod(name string, mode os.FileMode) error {
st, _, err := u.cacheStatus(name)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit:
err = u.base.Chmod(name, mode)
case cacheStale, cacheMiss:
if err := u.copyToLayer(name); err != nil {
return err
}
err = u.base.Chmod(name, mode)
}
if err != nil {
return err
}
return u.layer.Chmod(name, mode)
}
func (u *CacheOnReadFs) Chown(name string, uid, gid int) error {
st, _, err := u.cacheStatus(name)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit:
err = u.base.Chown(name, uid, gid)
case cacheStale, cacheMiss:
if err := u.copyToLayer(name); err != nil {
return err
}
err = u.base.Chown(name, uid, gid)
}
if err != nil {
return err
}
return u.layer.Chown(name, uid, gid)
}
func (u *CacheOnReadFs) Stat(name string) (os.FileInfo, error) {
st, fi, err := u.cacheStatus(name)
if err != nil {
return nil, err
}
switch st {
case cacheMiss:
return u.base.Stat(name)
default: // cacheStale has base, cacheHit and cacheLocal the layer os.FileInfo
return fi, nil
}
}
func (u *CacheOnReadFs) Rename(oldname, newname string) error {
st, _, err := u.cacheStatus(oldname)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit:
err = u.base.Rename(oldname, newname)
case cacheStale, cacheMiss:
if err := u.copyToLayer(oldname); err != nil {
return err
}
err = u.base.Rename(oldname, newname)
}
if err != nil {
return err
}
return u.layer.Rename(oldname, newname)
}
func (u *CacheOnReadFs) Remove(name string) error {
st, _, err := u.cacheStatus(name)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit, cacheStale, cacheMiss:
err = u.base.Remove(name)
}
if err != nil {
return err
}
return u.layer.Remove(name)
}
func (u *CacheOnReadFs) RemoveAll(name string) error {
st, _, err := u.cacheStatus(name)
if err != nil {
return err
}
switch st {
case cacheLocal:
case cacheHit, cacheStale, cacheMiss:
err = u.base.RemoveAll(name)
}
if err != nil {
return err
}
return u.layer.RemoveAll(name)
}
func (u *CacheOnReadFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
st, _, err := u.cacheStatus(name)
if err != nil {
return nil, err
}
switch st {
case cacheLocal, cacheHit:
default:
if err := u.copyFileToLayer(name, flag, perm); err != nil {
return nil, err
}
}
if flag&(os.O_WRONLY|syscall.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
bfi, err := u.base.OpenFile(name, flag, perm)
if err != nil {
return nil, err
}
lfi, err := u.layer.OpenFile(name, flag, perm)
if err != nil {
bfi.Close() // oops, what if O_TRUNC was set and file opening in the layer failed...?
return nil, err
}
return &UnionFile{Base: bfi, Layer: lfi}, nil
}
return u.layer.OpenFile(name, flag, perm)
}
func (u *CacheOnReadFs) Open(name string) (File, error) {
st, fi, err := u.cacheStatus(name)
if err != nil {
return nil, err
}
switch st {
case cacheLocal:
return u.layer.Open(name)
case cacheMiss:
bfi, err := u.base.Stat(name)
if err != nil {
return nil, err
}
if bfi.IsDir() {
return u.base.Open(name)
}
if err := u.copyToLayer(name); err != nil {
return nil, err
}
return u.layer.Open(name)
case cacheStale:
if !fi.IsDir() {
if err := u.copyToLayer(name); err != nil {
return nil, err
}
return u.layer.Open(name)
}
case cacheHit:
if !fi.IsDir() {
return u.layer.Open(name)
}
}
// the dirs from cacheHit, cacheStale fall down here:
bfile, _ := u.base.Open(name)
lfile, err := u.layer.Open(name)
if err != nil && bfile == nil {
return nil, err
}
return &UnionFile{Base: bfile, Layer: lfile}, nil
}
func (u *CacheOnReadFs) Mkdir(name string, perm os.FileMode) error {
err := u.base.Mkdir(name, perm)
if err != nil {
return err
}
return u.layer.MkdirAll(name, perm) // yes, MkdirAll... we cannot assume it exists in the cache
}
func (u *CacheOnReadFs) Name() string {
return "CacheOnReadFs"
}
func (u *CacheOnReadFs) MkdirAll(name string, perm os.FileMode) error {
err := u.base.MkdirAll(name, perm)
if err != nil {
return err
}
return u.layer.MkdirAll(name, perm)
}
func (u *CacheOnReadFs) Create(name string) (File, error) {
bfh, err := u.base.Create(name)
if err != nil {
return nil, err
}
lfh, err := u.layer.Create(name)
if err != nil {
// oops, see comment about OS_TRUNC above, should we remove? then we have to
// remember if the file did not exist before
bfh.Close()
return nil, err
}
return &UnionFile{Base: bfh, Layer: lfh}, nil
}

22
vendor/github.com/spf13/afero/const_bsds.go generated vendored Normal file
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// Copyright © 2016 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build aix darwin openbsd freebsd netbsd dragonfly
package afero
import (
"syscall"
)
const BADFD = syscall.EBADF

26
vendor/github.com/spf13/afero/const_win_unix.go generated vendored Normal file
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// Copyright © 2016 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !darwin
// +build !openbsd
// +build !freebsd
// +build !dragonfly
// +build !netbsd
// +build !aix
package afero
import (
"syscall"
)
const BADFD = syscall.EBADFD

326
vendor/github.com/spf13/afero/copyOnWriteFs.go generated vendored Normal file
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package afero
import (
"fmt"
"os"
"path/filepath"
"syscall"
"time"
)
var _ Lstater = (*CopyOnWriteFs)(nil)
// The CopyOnWriteFs is a union filesystem: a read only base file system with
// a possibly writeable layer on top. Changes to the file system will only
// be made in the overlay: Changing an existing file in the base layer which
// is not present in the overlay will copy the file to the overlay ("changing"
// includes also calls to e.g. Chtimes(), Chmod() and Chown()).
//
// Reading directories is currently only supported via Open(), not OpenFile().
type CopyOnWriteFs struct {
base Fs
layer Fs
}
func NewCopyOnWriteFs(base Fs, layer Fs) Fs {
return &CopyOnWriteFs{base: base, layer: layer}
}
// Returns true if the file is not in the overlay
func (u *CopyOnWriteFs) isBaseFile(name string) (bool, error) {
if _, err := u.layer.Stat(name); err == nil {
return false, nil
}
_, err := u.base.Stat(name)
if err != nil {
if oerr, ok := err.(*os.PathError); ok {
if oerr.Err == os.ErrNotExist || oerr.Err == syscall.ENOENT || oerr.Err == syscall.ENOTDIR {
return false, nil
}
}
if err == syscall.ENOENT {
return false, nil
}
}
return true, err
}
func (u *CopyOnWriteFs) copyToLayer(name string) error {
return copyToLayer(u.base, u.layer, name)
}
func (u *CopyOnWriteFs) Chtimes(name string, atime, mtime time.Time) error {
b, err := u.isBaseFile(name)
if err != nil {
return err
}
if b {
if err := u.copyToLayer(name); err != nil {
return err
}
}
return u.layer.Chtimes(name, atime, mtime)
}
func (u *CopyOnWriteFs) Chmod(name string, mode os.FileMode) error {
b, err := u.isBaseFile(name)
if err != nil {
return err
}
if b {
if err := u.copyToLayer(name); err != nil {
return err
}
}
return u.layer.Chmod(name, mode)
}
func (u *CopyOnWriteFs) Chown(name string, uid, gid int) error {
b, err := u.isBaseFile(name)
if err != nil {
return err
}
if b {
if err := u.copyToLayer(name); err != nil {
return err
}
}
return u.layer.Chown(name, uid, gid)
}
func (u *CopyOnWriteFs) Stat(name string) (os.FileInfo, error) {
fi, err := u.layer.Stat(name)
if err != nil {
isNotExist := u.isNotExist(err)
if isNotExist {
return u.base.Stat(name)
}
return nil, err
}
return fi, nil
}
func (u *CopyOnWriteFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
llayer, ok1 := u.layer.(Lstater)
lbase, ok2 := u.base.(Lstater)
if ok1 {
fi, b, err := llayer.LstatIfPossible(name)
if err == nil {
return fi, b, nil
}
if !u.isNotExist(err) {
return nil, b, err
}
}
if ok2 {
fi, b, err := lbase.LstatIfPossible(name)
if err == nil {
return fi, b, nil
}
if !u.isNotExist(err) {
return nil, b, err
}
}
fi, err := u.Stat(name)
return fi, false, err
}
func (u *CopyOnWriteFs) SymlinkIfPossible(oldname, newname string) error {
if slayer, ok := u.layer.(Linker); ok {
return slayer.SymlinkIfPossible(oldname, newname)
}
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
}
func (u *CopyOnWriteFs) ReadlinkIfPossible(name string) (string, error) {
if rlayer, ok := u.layer.(LinkReader); ok {
return rlayer.ReadlinkIfPossible(name)
}
if rbase, ok := u.base.(LinkReader); ok {
return rbase.ReadlinkIfPossible(name)
}
return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
}
func (u *CopyOnWriteFs) isNotExist(err error) bool {
if e, ok := err.(*os.PathError); ok {
err = e.Err
}
if err == os.ErrNotExist || err == syscall.ENOENT || err == syscall.ENOTDIR {
return true
}
return false
}
// Renaming files present only in the base layer is not permitted
func (u *CopyOnWriteFs) Rename(oldname, newname string) error {
b, err := u.isBaseFile(oldname)
if err != nil {
return err
}
if b {
return syscall.EPERM
}
return u.layer.Rename(oldname, newname)
}
// Removing files present only in the base layer is not permitted. If
// a file is present in the base layer and the overlay, only the overlay
// will be removed.
func (u *CopyOnWriteFs) Remove(name string) error {
err := u.layer.Remove(name)
switch err {
case syscall.ENOENT:
_, err = u.base.Stat(name)
if err == nil {
return syscall.EPERM
}
return syscall.ENOENT
default:
return err
}
}
func (u *CopyOnWriteFs) RemoveAll(name string) error {
err := u.layer.RemoveAll(name)
switch err {
case syscall.ENOENT:
_, err = u.base.Stat(name)
if err == nil {
return syscall.EPERM
}
return syscall.ENOENT
default:
return err
}
}
func (u *CopyOnWriteFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
b, err := u.isBaseFile(name)
if err != nil {
return nil, err
}
if flag&(os.O_WRONLY|os.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
if b {
if err = u.copyToLayer(name); err != nil {
return nil, err
}
return u.layer.OpenFile(name, flag, perm)
}
dir := filepath.Dir(name)
isaDir, err := IsDir(u.base, dir)
if err != nil && !os.IsNotExist(err) {
return nil, err
}
if isaDir {
if err = u.layer.MkdirAll(dir, 0777); err != nil {
return nil, err
}
return u.layer.OpenFile(name, flag, perm)
}
isaDir, err = IsDir(u.layer, dir)
if err != nil {
return nil, err
}
if isaDir {
return u.layer.OpenFile(name, flag, perm)
}
return nil, &os.PathError{Op: "open", Path: name, Err: syscall.ENOTDIR} // ...or os.ErrNotExist?
}
if b {
return u.base.OpenFile(name, flag, perm)
}
return u.layer.OpenFile(name, flag, perm)
}
// This function handles the 9 different possibilities caused
// by the union which are the intersection of the following...
// layer: doesn't exist, exists as a file, and exists as a directory
// base: doesn't exist, exists as a file, and exists as a directory
func (u *CopyOnWriteFs) Open(name string) (File, error) {
// Since the overlay overrides the base we check that first
b, err := u.isBaseFile(name)
if err != nil {
return nil, err
}
// If overlay doesn't exist, return the base (base state irrelevant)
if b {
return u.base.Open(name)
}
// If overlay is a file, return it (base state irrelevant)
dir, err := IsDir(u.layer, name)
if err != nil {
return nil, err
}
if !dir {
return u.layer.Open(name)
}
// Overlay is a directory, base state now matters.
// Base state has 3 states to check but 2 outcomes:
// A. It's a file or non-readable in the base (return just the overlay)
// B. It's an accessible directory in the base (return a UnionFile)
// If base is file or nonreadable, return overlay
dir, err = IsDir(u.base, name)
if !dir || err != nil {
return u.layer.Open(name)
}
// Both base & layer are directories
// Return union file (if opens are without error)
bfile, bErr := u.base.Open(name)
lfile, lErr := u.layer.Open(name)
// If either have errors at this point something is very wrong. Return nil and the errors
if bErr != nil || lErr != nil {
return nil, fmt.Errorf("BaseErr: %v\nOverlayErr: %v", bErr, lErr)
}
return &UnionFile{Base: bfile, Layer: lfile}, nil
}
func (u *CopyOnWriteFs) Mkdir(name string, perm os.FileMode) error {
dir, err := IsDir(u.base, name)
if err != nil {
return u.layer.MkdirAll(name, perm)
}
if dir {
return ErrFileExists
}
return u.layer.MkdirAll(name, perm)
}
func (u *CopyOnWriteFs) Name() string {
return "CopyOnWriteFs"
}
func (u *CopyOnWriteFs) MkdirAll(name string, perm os.FileMode) error {
dir, err := IsDir(u.base, name)
if err != nil {
return u.layer.MkdirAll(name, perm)
}
if dir {
// This is in line with how os.MkdirAll behaves.
return nil
}
return u.layer.MkdirAll(name, perm)
}
func (u *CopyOnWriteFs) Create(name string) (File, error) {
return u.OpenFile(name, os.O_CREATE|os.O_TRUNC|os.O_RDWR, 0666)
}

13
vendor/github.com/spf13/afero/go.mod generated vendored Normal file
View File

@ -0,0 +1,13 @@
module github.com/spf13/afero
require (
cloud.google.com/go/storage v1.14.0
github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8
github.com/pkg/sftp v1.13.1
golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa
golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99
golang.org/x/text v0.3.4
google.golang.org/api v0.40.0
)
go 1.13

432
vendor/github.com/spf13/afero/go.sum generated vendored Normal file
View File

@ -0,0 +1,432 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
cloud.google.com/go v0.75.0 h1:XgtDnVJRCPEUG21gjFiRPz4zI1Mjg16R+NYQjfmU4XY=
cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
cloud.google.com/go/storage v1.14.0 h1:6RRlFMv1omScs6iq2hfE3IvgE+l6RfJPampq8UZc5TU=
cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
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github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
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github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
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github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
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github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
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github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
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github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
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github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
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github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/martian v2.1.0+incompatible h1:/CP5g8u/VJHijgedC/Legn3BAbAaWPgecwXBIDzw5no=
github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
github.com/google/martian/v3 v3.0.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
github.com/google/martian/v3 v3.1.0 h1:wCKgOCHuUEVfsaQLpPSJb7VdYCdTVZQAuOdYm1yc/60=
github.com/google/martian/v3 v3.1.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20201218002935-b9804c9f04c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
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github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
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github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8/go.mod h1:dvDLG8qkwmyD9a/MJJN3XJcT3xFxOKAvTZGvuZmac9g=
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github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pkg/sftp v1.13.1/go.mod h1:3HaPG6Dq1ILlpPZRO0HVMrsydcdLt6HRDccSgb87qRg=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa h1:idItI2DDfCokpg0N51B2VtiLdJ4vAuXC9fnCb2gACo4=
golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 h1:2M3HP5CCK1Si9FQhwnzYhXdG6DXeebvUHFpre8QvbyI=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1 h1:Kvvh58BN8Y9/lBi7hTekvtMpm07eUZ0ck5pRHpsMWrY=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200222125558-5a598a2470a0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200506145744-7e3656a0809f/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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114
vendor/github.com/spf13/afero/httpFs.go generated vendored Normal file
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@ -0,0 +1,114 @@
// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"errors"
"net/http"
"os"
"path"
"path/filepath"
"strings"
"time"
)
type httpDir struct {
basePath string
fs HttpFs
}
func (d httpDir) Open(name string) (http.File, error) {
if filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0 ||
strings.Contains(name, "\x00") {
return nil, errors.New("http: invalid character in file path")
}
dir := string(d.basePath)
if dir == "" {
dir = "."
}
f, err := d.fs.Open(filepath.Join(dir, filepath.FromSlash(path.Clean("/"+name))))
if err != nil {
return nil, err
}
return f, nil
}
type HttpFs struct {
source Fs
}
func NewHttpFs(source Fs) *HttpFs {
return &HttpFs{source: source}
}
func (h HttpFs) Dir(s string) *httpDir {
return &httpDir{basePath: s, fs: h}
}
func (h HttpFs) Name() string { return "h HttpFs" }
func (h HttpFs) Create(name string) (File, error) {
return h.source.Create(name)
}
func (h HttpFs) Chmod(name string, mode os.FileMode) error {
return h.source.Chmod(name, mode)
}
func (h HttpFs) Chown(name string, uid, gid int) error {
return h.source.Chown(name, uid, gid)
}
func (h HttpFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
return h.source.Chtimes(name, atime, mtime)
}
func (h HttpFs) Mkdir(name string, perm os.FileMode) error {
return h.source.Mkdir(name, perm)
}
func (h HttpFs) MkdirAll(path string, perm os.FileMode) error {
return h.source.MkdirAll(path, perm)
}
func (h HttpFs) Open(name string) (http.File, error) {
f, err := h.source.Open(name)
if err == nil {
if httpfile, ok := f.(http.File); ok {
return httpfile, nil
}
}
return nil, err
}
func (h HttpFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
return h.source.OpenFile(name, flag, perm)
}
func (h HttpFs) Remove(name string) error {
return h.source.Remove(name)
}
func (h HttpFs) RemoveAll(path string) error {
return h.source.RemoveAll(path)
}
func (h HttpFs) Rename(oldname, newname string) error {
return h.source.Rename(oldname, newname)
}
func (h HttpFs) Stat(name string) (os.FileInfo, error) {
return h.source.Stat(name)
}

288
vendor/github.com/spf13/afero/iofs.go generated vendored Normal file
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@ -0,0 +1,288 @@
// +build go1.16
package afero
import (
"io"
"io/fs"
"os"
"path"
"time"
)
// IOFS adopts afero.Fs to stdlib io/fs.FS
type IOFS struct {
Fs
}
func NewIOFS(fs Fs) IOFS {
return IOFS{Fs: fs}
}
var (
_ fs.FS = IOFS{}
_ fs.GlobFS = IOFS{}
_ fs.ReadDirFS = IOFS{}
_ fs.ReadFileFS = IOFS{}
_ fs.StatFS = IOFS{}
_ fs.SubFS = IOFS{}
)
func (iofs IOFS) Open(name string) (fs.File, error) {
const op = "open"
// by convention for fs.FS implementations we should perform this check
if !fs.ValidPath(name) {
return nil, iofs.wrapError(op, name, fs.ErrInvalid)
}
file, err := iofs.Fs.Open(name)
if err != nil {
return nil, iofs.wrapError(op, name, err)
}
// file should implement fs.ReadDirFile
if _, ok := file.(fs.ReadDirFile); !ok {
file = readDirFile{file}
}
return file, nil
}
func (iofs IOFS) Glob(pattern string) ([]string, error) {
const op = "glob"
// afero.Glob does not perform this check but it's required for implementations
if _, err := path.Match(pattern, ""); err != nil {
return nil, iofs.wrapError(op, pattern, err)
}
items, err := Glob(iofs.Fs, pattern)
if err != nil {
return nil, iofs.wrapError(op, pattern, err)
}
return items, nil
}
func (iofs IOFS) ReadDir(name string) ([]fs.DirEntry, error) {
items, err := ReadDir(iofs.Fs, name)
if err != nil {
return nil, iofs.wrapError("readdir", name, err)
}
ret := make([]fs.DirEntry, len(items))
for i := range items {
ret[i] = dirEntry{items[i]}
}
return ret, nil
}
func (iofs IOFS) ReadFile(name string) ([]byte, error) {
const op = "readfile"
if !fs.ValidPath(name) {
return nil, iofs.wrapError(op, name, fs.ErrInvalid)
}
bytes, err := ReadFile(iofs.Fs, name)
if err != nil {
return nil, iofs.wrapError(op, name, err)
}
return bytes, nil
}
func (iofs IOFS) Sub(dir string) (fs.FS, error) { return IOFS{NewBasePathFs(iofs.Fs, dir)}, nil }
func (IOFS) wrapError(op, path string, err error) error {
if _, ok := err.(*fs.PathError); ok {
return err // don't need to wrap again
}
return &fs.PathError{
Op: op,
Path: path,
Err: err,
}
}
// dirEntry provides adapter from os.FileInfo to fs.DirEntry
type dirEntry struct {
fs.FileInfo
}
var _ fs.DirEntry = dirEntry{}
func (d dirEntry) Type() fs.FileMode { return d.FileInfo.Mode().Type() }
func (d dirEntry) Info() (fs.FileInfo, error) { return d.FileInfo, nil }
// readDirFile provides adapter from afero.File to fs.ReadDirFile needed for correct Open
type readDirFile struct {
File
}
var _ fs.ReadDirFile = readDirFile{}
func (r readDirFile) ReadDir(n int) ([]fs.DirEntry, error) {
items, err := r.File.Readdir(n)
if err != nil {
return nil, err
}
ret := make([]fs.DirEntry, len(items))
for i := range items {
ret[i] = dirEntry{items[i]}
}
return ret, nil
}
// FromIOFS adopts io/fs.FS to use it as afero.Fs
// Note that io/fs.FS is read-only so all mutating methods will return fs.PathError with fs.ErrPermission
// To store modifications you may use afero.CopyOnWriteFs
type FromIOFS struct {
fs.FS
}
var _ Fs = FromIOFS{}
func (f FromIOFS) Create(name string) (File, error) { return nil, notImplemented("create", name) }
func (f FromIOFS) Mkdir(name string, perm os.FileMode) error { return notImplemented("mkdir", name) }
func (f FromIOFS) MkdirAll(path string, perm os.FileMode) error {
return notImplemented("mkdirall", path)
}
func (f FromIOFS) Open(name string) (File, error) {
file, err := f.FS.Open(name)
if err != nil {
return nil, err
}
return fromIOFSFile{File: file, name: name}, nil
}
func (f FromIOFS) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
return f.Open(name)
}
func (f FromIOFS) Remove(name string) error {
return notImplemented("remove", name)
}
func (f FromIOFS) RemoveAll(path string) error {
return notImplemented("removeall", path)
}
func (f FromIOFS) Rename(oldname, newname string) error {
return notImplemented("rename", oldname)
}
func (f FromIOFS) Stat(name string) (os.FileInfo, error) { return fs.Stat(f.FS, name) }
func (f FromIOFS) Name() string { return "fromiofs" }
func (f FromIOFS) Chmod(name string, mode os.FileMode) error {
return notImplemented("chmod", name)
}
func (f FromIOFS) Chown(name string, uid, gid int) error {
return notImplemented("chown", name)
}
func (f FromIOFS) Chtimes(name string, atime time.Time, mtime time.Time) error {
return notImplemented("chtimes", name)
}
type fromIOFSFile struct {
fs.File
name string
}
func (f fromIOFSFile) ReadAt(p []byte, off int64) (n int, err error) {
readerAt, ok := f.File.(io.ReaderAt)
if !ok {
return -1, notImplemented("readat", f.name)
}
return readerAt.ReadAt(p, off)
}
func (f fromIOFSFile) Seek(offset int64, whence int) (int64, error) {
seeker, ok := f.File.(io.Seeker)
if !ok {
return -1, notImplemented("seek", f.name)
}
return seeker.Seek(offset, whence)
}
func (f fromIOFSFile) Write(p []byte) (n int, err error) {
return -1, notImplemented("write", f.name)
}
func (f fromIOFSFile) WriteAt(p []byte, off int64) (n int, err error) {
return -1, notImplemented("writeat", f.name)
}
func (f fromIOFSFile) Name() string { return f.name }
func (f fromIOFSFile) Readdir(count int) ([]os.FileInfo, error) {
rdfile, ok := f.File.(fs.ReadDirFile)
if !ok {
return nil, notImplemented("readdir", f.name)
}
entries, err := rdfile.ReadDir(count)
if err != nil {
return nil, err
}
ret := make([]os.FileInfo, len(entries))
for i := range entries {
ret[i], err = entries[i].Info()
if err != nil {
return nil, err
}
}
return ret, nil
}
func (f fromIOFSFile) Readdirnames(n int) ([]string, error) {
rdfile, ok := f.File.(fs.ReadDirFile)
if !ok {
return nil, notImplemented("readdir", f.name)
}
entries, err := rdfile.ReadDir(n)
if err != nil {
return nil, err
}
ret := make([]string, len(entries))
for i := range entries {
ret[i] = entries[i].Name()
}
return ret, nil
}
func (f fromIOFSFile) Sync() error { return nil }
func (f fromIOFSFile) Truncate(size int64) error {
return notImplemented("truncate", f.name)
}
func (f fromIOFSFile) WriteString(s string) (ret int, err error) {
return -1, notImplemented("writestring", f.name)
}
func notImplemented(op, path string) error {
return &fs.PathError{Op: op, Path: path, Err: fs.ErrPermission}
}

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// Copyright ©2015 The Go Authors
// Copyright ©2015 Steve Francia <spf@spf13.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"bytes"
"io"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"sync"
"time"
)
// byName implements sort.Interface.
type byName []os.FileInfo
func (f byName) Len() int { return len(f) }
func (f byName) Less(i, j int) bool { return f[i].Name() < f[j].Name() }
func (f byName) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
// ReadDir reads the directory named by dirname and returns
// a list of sorted directory entries.
func (a Afero) ReadDir(dirname string) ([]os.FileInfo, error) {
return ReadDir(a.Fs, dirname)
}
func ReadDir(fs Fs, dirname string) ([]os.FileInfo, error) {
f, err := fs.Open(dirname)
if err != nil {
return nil, err
}
list, err := f.Readdir(-1)
f.Close()
if err != nil {
return nil, err
}
sort.Sort(byName(list))
return list, nil
}
// ReadFile reads the file named by filename and returns the contents.
// A successful call returns err == nil, not err == EOF. Because ReadFile
// reads the whole file, it does not treat an EOF from Read as an error
// to be reported.
func (a Afero) ReadFile(filename string) ([]byte, error) {
return ReadFile(a.Fs, filename)
}
func ReadFile(fs Fs, filename string) ([]byte, error) {
f, err := fs.Open(filename)
if err != nil {
return nil, err
}
defer f.Close()
// It's a good but not certain bet that FileInfo will tell us exactly how much to
// read, so let's try it but be prepared for the answer to be wrong.
var n int64
if fi, err := f.Stat(); err == nil {
// Don't preallocate a huge buffer, just in case.
if size := fi.Size(); size < 1e9 {
n = size
}
}
// As initial capacity for readAll, use n + a little extra in case Size is zero,
// and to avoid another allocation after Read has filled the buffer. The readAll
// call will read into its allocated internal buffer cheaply. If the size was
// wrong, we'll either waste some space off the end or reallocate as needed, but
// in the overwhelmingly common case we'll get it just right.
return readAll(f, n+bytes.MinRead)
}
// readAll reads from r until an error or EOF and returns the data it read
// from the internal buffer allocated with a specified capacity.
func readAll(r io.Reader, capacity int64) (b []byte, err error) {
buf := bytes.NewBuffer(make([]byte, 0, capacity))
// If the buffer overflows, we will get bytes.ErrTooLarge.
// Return that as an error. Any other panic remains.
defer func() {
e := recover()
if e == nil {
return
}
if panicErr, ok := e.(error); ok && panicErr == bytes.ErrTooLarge {
err = panicErr
} else {
panic(e)
}
}()
_, err = buf.ReadFrom(r)
return buf.Bytes(), err
}
// ReadAll reads from r until an error or EOF and returns the data it read.
// A successful call returns err == nil, not err == EOF. Because ReadAll is
// defined to read from src until EOF, it does not treat an EOF from Read
// as an error to be reported.
func ReadAll(r io.Reader) ([]byte, error) {
return readAll(r, bytes.MinRead)
}
// WriteFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it with permissions perm;
// otherwise WriteFile truncates it before writing.
func (a Afero) WriteFile(filename string, data []byte, perm os.FileMode) error {
return WriteFile(a.Fs, filename, data, perm)
}
func WriteFile(fs Fs, filename string, data []byte, perm os.FileMode) error {
f, err := fs.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
if err != nil {
return err
}
n, err := f.Write(data)
if err == nil && n < len(data) {
err = io.ErrShortWrite
}
if err1 := f.Close(); err == nil {
err = err1
}
return err
}
// Random number state.
// We generate random temporary file names so that there's a good
// chance the file doesn't exist yet - keeps the number of tries in
// TempFile to a minimum.
var rand uint32
var randmu sync.Mutex
func reseed() uint32 {
return uint32(time.Now().UnixNano() + int64(os.Getpid()))
}
func nextRandom() string {
randmu.Lock()
r := rand
if r == 0 {
r = reseed()
}
r = r*1664525 + 1013904223 // constants from Numerical Recipes
rand = r
randmu.Unlock()
return strconv.Itoa(int(1e9 + r%1e9))[1:]
}
// TempFile creates a new temporary file in the directory dir,
// opens the file for reading and writing, and returns the resulting *os.File.
// The filename is generated by taking pattern and adding a random
// string to the end. If pattern includes a "*", the random string
// replaces the last "*".
// If dir is the empty string, TempFile uses the default directory
// for temporary files (see os.TempDir).
// Multiple programs calling TempFile simultaneously
// will not choose the same file. The caller can use f.Name()
// to find the pathname of the file. It is the caller's responsibility
// to remove the file when no longer needed.
func (a Afero) TempFile(dir, pattern string) (f File, err error) {
return TempFile(a.Fs, dir, pattern)
}
func TempFile(fs Fs, dir, pattern string) (f File, err error) {
if dir == "" {
dir = os.TempDir()
}
var prefix, suffix string
if pos := strings.LastIndex(pattern, "*"); pos != -1 {
prefix, suffix = pattern[:pos], pattern[pos+1:]
} else {
prefix = pattern
}
nconflict := 0
for i := 0; i < 10000; i++ {
name := filepath.Join(dir, prefix+nextRandom()+suffix)
f, err = fs.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
if os.IsExist(err) {
if nconflict++; nconflict > 10 {
randmu.Lock()
rand = reseed()
randmu.Unlock()
}
continue
}
break
}
return
}
// TempDir creates a new temporary directory in the directory dir
// with a name beginning with prefix and returns the path of the
// new directory. If dir is the empty string, TempDir uses the
// default directory for temporary files (see os.TempDir).
// Multiple programs calling TempDir simultaneously
// will not choose the same directory. It is the caller's responsibility
// to remove the directory when no longer needed.
func (a Afero) TempDir(dir, prefix string) (name string, err error) {
return TempDir(a.Fs, dir, prefix)
}
func TempDir(fs Fs, dir, prefix string) (name string, err error) {
if dir == "" {
dir = os.TempDir()
}
nconflict := 0
for i := 0; i < 10000; i++ {
try := filepath.Join(dir, prefix+nextRandom())
err = fs.Mkdir(try, 0700)
if os.IsExist(err) {
if nconflict++; nconflict > 10 {
randmu.Lock()
rand = reseed()
randmu.Unlock()
}
continue
}
if err == nil {
name = try
}
break
}
return
}

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vendor/github.com/spf13/afero/lstater.go generated vendored Normal file
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// Copyright © 2018 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"os"
)
// Lstater is an optional interface in Afero. It is only implemented by the
// filesystems saying so.
// It will call Lstat if the filesystem iself is, or it delegates to, the os filesystem.
// Else it will call Stat.
// In addtion to the FileInfo, it will return a boolean telling whether Lstat was called or not.
type Lstater interface {
LstatIfPossible(name string) (os.FileInfo, bool, error)
}

110
vendor/github.com/spf13/afero/match.go generated vendored Normal file
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// Copyright © 2014 Steve Francia <spf@spf13.com>.
// Copyright 2009 The Go Authors. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"path/filepath"
"sort"
"strings"
)
// Glob returns the names of all files matching pattern or nil
// if there is no matching file. The syntax of patterns is the same
// as in Match. The pattern may describe hierarchical names such as
// /usr/*/bin/ed (assuming the Separator is '/').
//
// Glob ignores file system errors such as I/O errors reading directories.
// The only possible returned error is ErrBadPattern, when pattern
// is malformed.
//
// This was adapted from (http://golang.org/pkg/path/filepath) and uses several
// built-ins from that package.
func Glob(fs Fs, pattern string) (matches []string, err error) {
if !hasMeta(pattern) {
// Lstat not supported by a ll filesystems.
if _, err = lstatIfPossible(fs, pattern); err != nil {
return nil, nil
}
return []string{pattern}, nil
}
dir, file := filepath.Split(pattern)
switch dir {
case "":
dir = "."
case string(filepath.Separator):
// nothing
default:
dir = dir[0 : len(dir)-1] // chop off trailing separator
}
if !hasMeta(dir) {
return glob(fs, dir, file, nil)
}
var m []string
m, err = Glob(fs, dir)
if err != nil {
return
}
for _, d := range m {
matches, err = glob(fs, d, file, matches)
if err != nil {
return
}
}
return
}
// glob searches for files matching pattern in the directory dir
// and appends them to matches. If the directory cannot be
// opened, it returns the existing matches. New matches are
// added in lexicographical order.
func glob(fs Fs, dir, pattern string, matches []string) (m []string, e error) {
m = matches
fi, err := fs.Stat(dir)
if err != nil {
return
}
if !fi.IsDir() {
return
}
d, err := fs.Open(dir)
if err != nil {
return
}
defer d.Close()
names, _ := d.Readdirnames(-1)
sort.Strings(names)
for _, n := range names {
matched, err := filepath.Match(pattern, n)
if err != nil {
return m, err
}
if matched {
m = append(m, filepath.Join(dir, n))
}
}
return
}
// hasMeta reports whether path contains any of the magic characters
// recognized by Match.
func hasMeta(path string) bool {
// TODO(niemeyer): Should other magic characters be added here?
return strings.ContainsAny(path, "*?[")
}

37
vendor/github.com/spf13/afero/mem/dir.go generated vendored Normal file
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// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mem
type Dir interface {
Len() int
Names() []string
Files() []*FileData
Add(*FileData)
Remove(*FileData)
}
func RemoveFromMemDir(dir *FileData, f *FileData) {
dir.memDir.Remove(f)
}
func AddToMemDir(dir *FileData, f *FileData) {
dir.memDir.Add(f)
}
func InitializeDir(d *FileData) {
if d.memDir == nil {
d.dir = true
d.memDir = &DirMap{}
}
}

43
vendor/github.com/spf13/afero/mem/dirmap.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mem
import "sort"
type DirMap map[string]*FileData
func (m DirMap) Len() int { return len(m) }
func (m DirMap) Add(f *FileData) { m[f.name] = f }
func (m DirMap) Remove(f *FileData) { delete(m, f.name) }
func (m DirMap) Files() (files []*FileData) {
for _, f := range m {
files = append(files, f)
}
sort.Sort(filesSorter(files))
return files
}
// implement sort.Interface for []*FileData
type filesSorter []*FileData
func (s filesSorter) Len() int { return len(s) }
func (s filesSorter) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s filesSorter) Less(i, j int) bool { return s[i].name < s[j].name }
func (m DirMap) Names() (names []string) {
for x := range m {
names = append(names, x)
}
return names
}

338
vendor/github.com/spf13/afero/mem/file.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
// Copyright 2013 tsuru authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mem
import (
"bytes"
"errors"
"io"
"os"
"path/filepath"
"sync"
"sync/atomic"
"time"
)
const FilePathSeparator = string(filepath.Separator)
type File struct {
// atomic requires 64-bit alignment for struct field access
at int64
readDirCount int64
closed bool
readOnly bool
fileData *FileData
}
func NewFileHandle(data *FileData) *File {
return &File{fileData: data}
}
func NewReadOnlyFileHandle(data *FileData) *File {
return &File{fileData: data, readOnly: true}
}
func (f File) Data() *FileData {
return f.fileData
}
type FileData struct {
sync.Mutex
name string
data []byte
memDir Dir
dir bool
mode os.FileMode
modtime time.Time
uid int
gid int
}
func (d *FileData) Name() string {
d.Lock()
defer d.Unlock()
return d.name
}
func CreateFile(name string) *FileData {
return &FileData{name: name, mode: os.ModeTemporary, modtime: time.Now()}
}
func CreateDir(name string) *FileData {
return &FileData{name: name, memDir: &DirMap{}, dir: true}
}
func ChangeFileName(f *FileData, newname string) {
f.Lock()
f.name = newname
f.Unlock()
}
func SetMode(f *FileData, mode os.FileMode) {
f.Lock()
f.mode = mode
f.Unlock()
}
func SetModTime(f *FileData, mtime time.Time) {
f.Lock()
setModTime(f, mtime)
f.Unlock()
}
func setModTime(f *FileData, mtime time.Time) {
f.modtime = mtime
}
func SetUID(f *FileData, uid int) {
f.Lock()
f.uid = uid
f.Unlock()
}
func SetGID(f *FileData, gid int) {
f.Lock()
f.gid = gid
f.Unlock()
}
func GetFileInfo(f *FileData) *FileInfo {
return &FileInfo{f}
}
func (f *File) Open() error {
atomic.StoreInt64(&f.at, 0)
atomic.StoreInt64(&f.readDirCount, 0)
f.fileData.Lock()
f.closed = false
f.fileData.Unlock()
return nil
}
func (f *File) Close() error {
f.fileData.Lock()
f.closed = true
if !f.readOnly {
setModTime(f.fileData, time.Now())
}
f.fileData.Unlock()
return nil
}
func (f *File) Name() string {
return f.fileData.Name()
}
func (f *File) Stat() (os.FileInfo, error) {
return &FileInfo{f.fileData}, nil
}
func (f *File) Sync() error {
return nil
}
func (f *File) Readdir(count int) (res []os.FileInfo, err error) {
if !f.fileData.dir {
return nil, &os.PathError{Op: "readdir", Path: f.fileData.name, Err: errors.New("not a dir")}
}
var outLength int64
f.fileData.Lock()
files := f.fileData.memDir.Files()[f.readDirCount:]
if count > 0 {
if len(files) < count {
outLength = int64(len(files))
} else {
outLength = int64(count)
}
if len(files) == 0 {
err = io.EOF
}
} else {
outLength = int64(len(files))
}
f.readDirCount += outLength
f.fileData.Unlock()
res = make([]os.FileInfo, outLength)
for i := range res {
res[i] = &FileInfo{files[i]}
}
return res, err
}
func (f *File) Readdirnames(n int) (names []string, err error) {
fi, err := f.Readdir(n)
names = make([]string, len(fi))
for i, f := range fi {
_, names[i] = filepath.Split(f.Name())
}
return names, err
}
func (f *File) Read(b []byte) (n int, err error) {
f.fileData.Lock()
defer f.fileData.Unlock()
if f.closed == true {
return 0, ErrFileClosed
}
if len(b) > 0 && int(f.at) == len(f.fileData.data) {
return 0, io.EOF
}
if int(f.at) > len(f.fileData.data) {
return 0, io.ErrUnexpectedEOF
}
if len(f.fileData.data)-int(f.at) >= len(b) {
n = len(b)
} else {
n = len(f.fileData.data) - int(f.at)
}
copy(b, f.fileData.data[f.at:f.at+int64(n)])
atomic.AddInt64(&f.at, int64(n))
return
}
func (f *File) ReadAt(b []byte, off int64) (n int, err error) {
prev := atomic.LoadInt64(&f.at)
atomic.StoreInt64(&f.at, off)
n, err = f.Read(b)
atomic.StoreInt64(&f.at, prev)
return
}
func (f *File) Truncate(size int64) error {
if f.closed == true {
return ErrFileClosed
}
if f.readOnly {
return &os.PathError{Op: "truncate", Path: f.fileData.name, Err: errors.New("file handle is read only")}
}
if size < 0 {
return ErrOutOfRange
}
f.fileData.Lock()
defer f.fileData.Unlock()
if size > int64(len(f.fileData.data)) {
diff := size - int64(len(f.fileData.data))
f.fileData.data = append(f.fileData.data, bytes.Repeat([]byte{00}, int(diff))...)
} else {
f.fileData.data = f.fileData.data[0:size]
}
setModTime(f.fileData, time.Now())
return nil
}
func (f *File) Seek(offset int64, whence int) (int64, error) {
if f.closed == true {
return 0, ErrFileClosed
}
switch whence {
case io.SeekStart:
atomic.StoreInt64(&f.at, offset)
case io.SeekCurrent:
atomic.AddInt64(&f.at, offset)
case io.SeekEnd:
atomic.StoreInt64(&f.at, int64(len(f.fileData.data))+offset)
}
return f.at, nil
}
func (f *File) Write(b []byte) (n int, err error) {
if f.closed == true {
return 0, ErrFileClosed
}
if f.readOnly {
return 0, &os.PathError{Op: "write", Path: f.fileData.name, Err: errors.New("file handle is read only")}
}
n = len(b)
cur := atomic.LoadInt64(&f.at)
f.fileData.Lock()
defer f.fileData.Unlock()
diff := cur - int64(len(f.fileData.data))
var tail []byte
if n+int(cur) < len(f.fileData.data) {
tail = f.fileData.data[n+int(cur):]
}
if diff > 0 {
f.fileData.data = append(f.fileData.data, append(bytes.Repeat([]byte{00}, int(diff)), b...)...)
f.fileData.data = append(f.fileData.data, tail...)
} else {
f.fileData.data = append(f.fileData.data[:cur], b...)
f.fileData.data = append(f.fileData.data, tail...)
}
setModTime(f.fileData, time.Now())
atomic.AddInt64(&f.at, int64(n))
return
}
func (f *File) WriteAt(b []byte, off int64) (n int, err error) {
atomic.StoreInt64(&f.at, off)
return f.Write(b)
}
func (f *File) WriteString(s string) (ret int, err error) {
return f.Write([]byte(s))
}
func (f *File) Info() *FileInfo {
return &FileInfo{f.fileData}
}
type FileInfo struct {
*FileData
}
// Implements os.FileInfo
func (s *FileInfo) Name() string {
s.Lock()
_, name := filepath.Split(s.name)
s.Unlock()
return name
}
func (s *FileInfo) Mode() os.FileMode {
s.Lock()
defer s.Unlock()
return s.mode
}
func (s *FileInfo) ModTime() time.Time {
s.Lock()
defer s.Unlock()
return s.modtime
}
func (s *FileInfo) IsDir() bool {
s.Lock()
defer s.Unlock()
return s.dir
}
func (s *FileInfo) Sys() interface{} { return nil }
func (s *FileInfo) Size() int64 {
if s.IsDir() {
return int64(42)
}
s.Lock()
defer s.Unlock()
return int64(len(s.data))
}
var (
ErrFileClosed = errors.New("File is closed")
ErrOutOfRange = errors.New("Out of range")
ErrTooLarge = errors.New("Too large")
ErrFileNotFound = os.ErrNotExist
ErrFileExists = os.ErrExist
ErrDestinationExists = os.ErrExist
)

404
vendor/github.com/spf13/afero/memmap.go generated vendored Normal file
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// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
"sync"
"time"
"github.com/spf13/afero/mem"
)
const chmodBits = os.ModePerm | os.ModeSetuid | os.ModeSetgid | os.ModeSticky // Only a subset of bits are allowed to be changed. Documented under os.Chmod()
type MemMapFs struct {
mu sync.RWMutex
data map[string]*mem.FileData
init sync.Once
}
func NewMemMapFs() Fs {
return &MemMapFs{}
}
func (m *MemMapFs) getData() map[string]*mem.FileData {
m.init.Do(func() {
m.data = make(map[string]*mem.FileData)
// Root should always exist, right?
// TODO: what about windows?
root := mem.CreateDir(FilePathSeparator)
mem.SetMode(root, os.ModeDir|0755)
m.data[FilePathSeparator] = root
})
return m.data
}
func (*MemMapFs) Name() string { return "MemMapFS" }
func (m *MemMapFs) Create(name string) (File, error) {
name = normalizePath(name)
m.mu.Lock()
file := mem.CreateFile(name)
m.getData()[name] = file
m.registerWithParent(file, 0)
m.mu.Unlock()
return mem.NewFileHandle(file), nil
}
func (m *MemMapFs) unRegisterWithParent(fileName string) error {
f, err := m.lockfreeOpen(fileName)
if err != nil {
return err
}
parent := m.findParent(f)
if parent == nil {
log.Panic("parent of ", f.Name(), " is nil")
}
parent.Lock()
mem.RemoveFromMemDir(parent, f)
parent.Unlock()
return nil
}
func (m *MemMapFs) findParent(f *mem.FileData) *mem.FileData {
pdir, _ := filepath.Split(f.Name())
pdir = filepath.Clean(pdir)
pfile, err := m.lockfreeOpen(pdir)
if err != nil {
return nil
}
return pfile
}
func (m *MemMapFs) registerWithParent(f *mem.FileData, perm os.FileMode) {
if f == nil {
return
}
parent := m.findParent(f)
if parent == nil {
pdir := filepath.Dir(filepath.Clean(f.Name()))
err := m.lockfreeMkdir(pdir, perm)
if err != nil {
//log.Println("Mkdir error:", err)
return
}
parent, err = m.lockfreeOpen(pdir)
if err != nil {
//log.Println("Open after Mkdir error:", err)
return
}
}
parent.Lock()
mem.InitializeDir(parent)
mem.AddToMemDir(parent, f)
parent.Unlock()
}
func (m *MemMapFs) lockfreeMkdir(name string, perm os.FileMode) error {
name = normalizePath(name)
x, ok := m.getData()[name]
if ok {
// Only return ErrFileExists if it's a file, not a directory.
i := mem.FileInfo{FileData: x}
if !i.IsDir() {
return ErrFileExists
}
} else {
item := mem.CreateDir(name)
mem.SetMode(item, os.ModeDir|perm)
m.getData()[name] = item
m.registerWithParent(item, perm)
}
return nil
}
func (m *MemMapFs) Mkdir(name string, perm os.FileMode) error {
perm &= chmodBits
name = normalizePath(name)
m.mu.RLock()
_, ok := m.getData()[name]
m.mu.RUnlock()
if ok {
return &os.PathError{Op: "mkdir", Path: name, Err: ErrFileExists}
}
m.mu.Lock()
item := mem.CreateDir(name)
mem.SetMode(item, os.ModeDir|perm)
m.getData()[name] = item
m.registerWithParent(item, perm)
m.mu.Unlock()
return m.setFileMode(name, perm|os.ModeDir)
}
func (m *MemMapFs) MkdirAll(path string, perm os.FileMode) error {
err := m.Mkdir(path, perm)
if err != nil {
if err.(*os.PathError).Err == ErrFileExists {
return nil
}
return err
}
return nil
}
// Handle some relative paths
func normalizePath(path string) string {
path = filepath.Clean(path)
switch path {
case ".":
return FilePathSeparator
case "..":
return FilePathSeparator
default:
return path
}
}
func (m *MemMapFs) Open(name string) (File, error) {
f, err := m.open(name)
if f != nil {
return mem.NewReadOnlyFileHandle(f), err
}
return nil, err
}
func (m *MemMapFs) openWrite(name string) (File, error) {
f, err := m.open(name)
if f != nil {
return mem.NewFileHandle(f), err
}
return nil, err
}
func (m *MemMapFs) open(name string) (*mem.FileData, error) {
name = normalizePath(name)
m.mu.RLock()
f, ok := m.getData()[name]
m.mu.RUnlock()
if !ok {
return nil, &os.PathError{Op: "open", Path: name, Err: ErrFileNotFound}
}
return f, nil
}
func (m *MemMapFs) lockfreeOpen(name string) (*mem.FileData, error) {
name = normalizePath(name)
f, ok := m.getData()[name]
if ok {
return f, nil
} else {
return nil, ErrFileNotFound
}
}
func (m *MemMapFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
perm &= chmodBits
chmod := false
file, err := m.openWrite(name)
if err == nil && (flag&os.O_EXCL > 0) {
return nil, &os.PathError{Op: "open", Path: name, Err: ErrFileExists}
}
if os.IsNotExist(err) && (flag&os.O_CREATE > 0) {
file, err = m.Create(name)
chmod = true
}
if err != nil {
return nil, err
}
if flag == os.O_RDONLY {
file = mem.NewReadOnlyFileHandle(file.(*mem.File).Data())
}
if flag&os.O_APPEND > 0 {
_, err = file.Seek(0, os.SEEK_END)
if err != nil {
file.Close()
return nil, err
}
}
if flag&os.O_TRUNC > 0 && flag&(os.O_RDWR|os.O_WRONLY) > 0 {
err = file.Truncate(0)
if err != nil {
file.Close()
return nil, err
}
}
if chmod {
return file, m.setFileMode(name, perm)
}
return file, nil
}
func (m *MemMapFs) Remove(name string) error {
name = normalizePath(name)
m.mu.Lock()
defer m.mu.Unlock()
if _, ok := m.getData()[name]; ok {
err := m.unRegisterWithParent(name)
if err != nil {
return &os.PathError{Op: "remove", Path: name, Err: err}
}
delete(m.getData(), name)
} else {
return &os.PathError{Op: "remove", Path: name, Err: os.ErrNotExist}
}
return nil
}
func (m *MemMapFs) RemoveAll(path string) error {
path = normalizePath(path)
m.mu.Lock()
m.unRegisterWithParent(path)
m.mu.Unlock()
m.mu.RLock()
defer m.mu.RUnlock()
for p := range m.getData() {
if strings.HasPrefix(p, path) {
m.mu.RUnlock()
m.mu.Lock()
delete(m.getData(), p)
m.mu.Unlock()
m.mu.RLock()
}
}
return nil
}
func (m *MemMapFs) Rename(oldname, newname string) error {
oldname = normalizePath(oldname)
newname = normalizePath(newname)
if oldname == newname {
return nil
}
m.mu.RLock()
defer m.mu.RUnlock()
if _, ok := m.getData()[oldname]; ok {
m.mu.RUnlock()
m.mu.Lock()
m.unRegisterWithParent(oldname)
fileData := m.getData()[oldname]
delete(m.getData(), oldname)
mem.ChangeFileName(fileData, newname)
m.getData()[newname] = fileData
m.registerWithParent(fileData, 0)
m.mu.Unlock()
m.mu.RLock()
} else {
return &os.PathError{Op: "rename", Path: oldname, Err: ErrFileNotFound}
}
return nil
}
func (m *MemMapFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
fileInfo, err := m.Stat(name)
return fileInfo, false, err
}
func (m *MemMapFs) Stat(name string) (os.FileInfo, error) {
f, err := m.Open(name)
if err != nil {
return nil, err
}
fi := mem.GetFileInfo(f.(*mem.File).Data())
return fi, nil
}
func (m *MemMapFs) Chmod(name string, mode os.FileMode) error {
mode &= chmodBits
m.mu.RLock()
f, ok := m.getData()[name]
m.mu.RUnlock()
if !ok {
return &os.PathError{Op: "chmod", Path: name, Err: ErrFileNotFound}
}
prevOtherBits := mem.GetFileInfo(f).Mode() & ^chmodBits
mode = prevOtherBits | mode
return m.setFileMode(name, mode)
}
func (m *MemMapFs) setFileMode(name string, mode os.FileMode) error {
name = normalizePath(name)
m.mu.RLock()
f, ok := m.getData()[name]
m.mu.RUnlock()
if !ok {
return &os.PathError{Op: "chmod", Path: name, Err: ErrFileNotFound}
}
m.mu.Lock()
mem.SetMode(f, mode)
m.mu.Unlock()
return nil
}
func (m *MemMapFs) Chown(name string, uid, gid int) error {
name = normalizePath(name)
m.mu.RLock()
f, ok := m.getData()[name]
m.mu.RUnlock()
if !ok {
return &os.PathError{Op: "chown", Path: name, Err: ErrFileNotFound}
}
mem.SetUID(f, uid)
mem.SetGID(f, gid)
return nil
}
func (m *MemMapFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
name = normalizePath(name)
m.mu.RLock()
f, ok := m.getData()[name]
m.mu.RUnlock()
if !ok {
return &os.PathError{Op: "chtimes", Path: name, Err: ErrFileNotFound}
}
m.mu.Lock()
mem.SetModTime(f, mtime)
m.mu.Unlock()
return nil
}
func (m *MemMapFs) List() {
for _, x := range m.data {
y := mem.FileInfo{FileData: x}
fmt.Println(x.Name(), y.Size())
}
}

113
vendor/github.com/spf13/afero/os.go generated vendored Normal file
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// Copyright © 2014 Steve Francia <spf@spf13.com>.
// Copyright 2013 tsuru authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"os"
"time"
)
var _ Lstater = (*OsFs)(nil)
// OsFs is a Fs implementation that uses functions provided by the os package.
//
// For details in any method, check the documentation of the os package
// (http://golang.org/pkg/os/).
type OsFs struct{}
func NewOsFs() Fs {
return &OsFs{}
}
func (OsFs) Name() string { return "OsFs" }
func (OsFs) Create(name string) (File, error) {
f, e := os.Create(name)
if f == nil {
// while this looks strange, we need to return a bare nil (of type nil) not
// a nil value of type *os.File or nil won't be nil
return nil, e
}
return f, e
}
func (OsFs) Mkdir(name string, perm os.FileMode) error {
return os.Mkdir(name, perm)
}
func (OsFs) MkdirAll(path string, perm os.FileMode) error {
return os.MkdirAll(path, perm)
}
func (OsFs) Open(name string) (File, error) {
f, e := os.Open(name)
if f == nil {
// while this looks strange, we need to return a bare nil (of type nil) not
// a nil value of type *os.File or nil won't be nil
return nil, e
}
return f, e
}
func (OsFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
f, e := os.OpenFile(name, flag, perm)
if f == nil {
// while this looks strange, we need to return a bare nil (of type nil) not
// a nil value of type *os.File or nil won't be nil
return nil, e
}
return f, e
}
func (OsFs) Remove(name string) error {
return os.Remove(name)
}
func (OsFs) RemoveAll(path string) error {
return os.RemoveAll(path)
}
func (OsFs) Rename(oldname, newname string) error {
return os.Rename(oldname, newname)
}
func (OsFs) Stat(name string) (os.FileInfo, error) {
return os.Stat(name)
}
func (OsFs) Chmod(name string, mode os.FileMode) error {
return os.Chmod(name, mode)
}
func (OsFs) Chown(name string, uid, gid int) error {
return os.Chown(name, uid, gid)
}
func (OsFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
return os.Chtimes(name, atime, mtime)
}
func (OsFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
fi, err := os.Lstat(name)
return fi, true, err
}
func (OsFs) SymlinkIfPossible(oldname, newname string) error {
return os.Symlink(oldname, newname)
}
func (OsFs) ReadlinkIfPossible(name string) (string, error) {
return os.Readlink(name)
}

106
vendor/github.com/spf13/afero/path.go generated vendored Normal file
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// Copyright ©2015 The Go Authors
// Copyright ©2015 Steve Francia <spf@spf13.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"os"
"path/filepath"
"sort"
)
// readDirNames reads the directory named by dirname and returns
// a sorted list of directory entries.
// adapted from https://golang.org/src/path/filepath/path.go
func readDirNames(fs Fs, dirname string) ([]string, error) {
f, err := fs.Open(dirname)
if err != nil {
return nil, err
}
names, err := f.Readdirnames(-1)
f.Close()
if err != nil {
return nil, err
}
sort.Strings(names)
return names, nil
}
// walk recursively descends path, calling walkFn
// adapted from https://golang.org/src/path/filepath/path.go
func walk(fs Fs, path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
err := walkFn(path, info, nil)
if err != nil {
if info.IsDir() && err == filepath.SkipDir {
return nil
}
return err
}
if !info.IsDir() {
return nil
}
names, err := readDirNames(fs, path)
if err != nil {
return walkFn(path, info, err)
}
for _, name := range names {
filename := filepath.Join(path, name)
fileInfo, err := lstatIfPossible(fs, filename)
if err != nil {
if err := walkFn(filename, fileInfo, err); err != nil && err != filepath.SkipDir {
return err
}
} else {
err = walk(fs, filename, fileInfo, walkFn)
if err != nil {
if !fileInfo.IsDir() || err != filepath.SkipDir {
return err
}
}
}
}
return nil
}
// if the filesystem supports it, use Lstat, else use fs.Stat
func lstatIfPossible(fs Fs, path string) (os.FileInfo, error) {
if lfs, ok := fs.(Lstater); ok {
fi, _, err := lfs.LstatIfPossible(path)
return fi, err
}
return fs.Stat(path)
}
// Walk walks the file tree rooted at root, calling walkFn for each file or
// directory in the tree, including root. All errors that arise visiting files
// and directories are filtered by walkFn. The files are walked in lexical
// order, which makes the output deterministic but means that for very
// large directories Walk can be inefficient.
// Walk does not follow symbolic links.
func (a Afero) Walk(root string, walkFn filepath.WalkFunc) error {
return Walk(a.Fs, root, walkFn)
}
func Walk(fs Fs, root string, walkFn filepath.WalkFunc) error {
info, err := lstatIfPossible(fs, root)
if err != nil {
return walkFn(root, nil, err)
}
return walk(fs, root, info, walkFn)
}

96
vendor/github.com/spf13/afero/readonlyfs.go generated vendored Normal file
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package afero
import (
"os"
"syscall"
"time"
)
var _ Lstater = (*ReadOnlyFs)(nil)
type ReadOnlyFs struct {
source Fs
}
func NewReadOnlyFs(source Fs) Fs {
return &ReadOnlyFs{source: source}
}
func (r *ReadOnlyFs) ReadDir(name string) ([]os.FileInfo, error) {
return ReadDir(r.source, name)
}
func (r *ReadOnlyFs) Chtimes(n string, a, m time.Time) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Chmod(n string, m os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Chown(n string, uid, gid int) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Name() string {
return "ReadOnlyFilter"
}
func (r *ReadOnlyFs) Stat(name string) (os.FileInfo, error) {
return r.source.Stat(name)
}
func (r *ReadOnlyFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
if lsf, ok := r.source.(Lstater); ok {
return lsf.LstatIfPossible(name)
}
fi, err := r.Stat(name)
return fi, false, err
}
func (r *ReadOnlyFs) SymlinkIfPossible(oldname, newname string) error {
return &os.LinkError{Op: "symlink", Old: oldname, New: newname, Err: ErrNoSymlink}
}
func (r *ReadOnlyFs) ReadlinkIfPossible(name string) (string, error) {
if srdr, ok := r.source.(LinkReader); ok {
return srdr.ReadlinkIfPossible(name)
}
return "", &os.PathError{Op: "readlink", Path: name, Err: ErrNoReadlink}
}
func (r *ReadOnlyFs) Rename(o, n string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) RemoveAll(p string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Remove(n string) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
if flag&(os.O_WRONLY|syscall.O_RDWR|os.O_APPEND|os.O_CREATE|os.O_TRUNC) != 0 {
return nil, syscall.EPERM
}
return r.source.OpenFile(name, flag, perm)
}
func (r *ReadOnlyFs) Open(n string) (File, error) {
return r.source.Open(n)
}
func (r *ReadOnlyFs) Mkdir(n string, p os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) MkdirAll(n string, p os.FileMode) error {
return syscall.EPERM
}
func (r *ReadOnlyFs) Create(n string) (File, error) {
return nil, syscall.EPERM
}

224
vendor/github.com/spf13/afero/regexpfs.go generated vendored Normal file
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@ -0,0 +1,224 @@
package afero
import (
"os"
"regexp"
"syscall"
"time"
)
// The RegexpFs filters files (not directories) by regular expression. Only
// files matching the given regexp will be allowed, all others get a ENOENT error (
// "No such file or directory").
//
type RegexpFs struct {
re *regexp.Regexp
source Fs
}
func NewRegexpFs(source Fs, re *regexp.Regexp) Fs {
return &RegexpFs{source: source, re: re}
}
type RegexpFile struct {
f File
re *regexp.Regexp
}
func (r *RegexpFs) matchesName(name string) error {
if r.re == nil {
return nil
}
if r.re.MatchString(name) {
return nil
}
return syscall.ENOENT
}
func (r *RegexpFs) dirOrMatches(name string) error {
dir, err := IsDir(r.source, name)
if err != nil {
return err
}
if dir {
return nil
}
return r.matchesName(name)
}
func (r *RegexpFs) Chtimes(name string, a, m time.Time) error {
if err := r.dirOrMatches(name); err != nil {
return err
}
return r.source.Chtimes(name, a, m)
}
func (r *RegexpFs) Chmod(name string, mode os.FileMode) error {
if err := r.dirOrMatches(name); err != nil {
return err
}
return r.source.Chmod(name, mode)
}
func (r *RegexpFs) Chown(name string, uid, gid int) error {
if err := r.dirOrMatches(name); err != nil {
return err
}
return r.source.Chown(name, uid, gid)
}
func (r *RegexpFs) Name() string {
return "RegexpFs"
}
func (r *RegexpFs) Stat(name string) (os.FileInfo, error) {
if err := r.dirOrMatches(name); err != nil {
return nil, err
}
return r.source.Stat(name)
}
func (r *RegexpFs) Rename(oldname, newname string) error {
dir, err := IsDir(r.source, oldname)
if err != nil {
return err
}
if dir {
return nil
}
if err := r.matchesName(oldname); err != nil {
return err
}
if err := r.matchesName(newname); err != nil {
return err
}
return r.source.Rename(oldname, newname)
}
func (r *RegexpFs) RemoveAll(p string) error {
dir, err := IsDir(r.source, p)
if err != nil {
return err
}
if !dir {
if err := r.matchesName(p); err != nil {
return err
}
}
return r.source.RemoveAll(p)
}
func (r *RegexpFs) Remove(name string) error {
if err := r.dirOrMatches(name); err != nil {
return err
}
return r.source.Remove(name)
}
func (r *RegexpFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
if err := r.dirOrMatches(name); err != nil {
return nil, err
}
return r.source.OpenFile(name, flag, perm)
}
func (r *RegexpFs) Open(name string) (File, error) {
dir, err := IsDir(r.source, name)
if err != nil {
return nil, err
}
if !dir {
if err := r.matchesName(name); err != nil {
return nil, err
}
}
f, err := r.source.Open(name)
if err != nil {
return nil, err
}
return &RegexpFile{f: f, re: r.re}, nil
}
func (r *RegexpFs) Mkdir(n string, p os.FileMode) error {
return r.source.Mkdir(n, p)
}
func (r *RegexpFs) MkdirAll(n string, p os.FileMode) error {
return r.source.MkdirAll(n, p)
}
func (r *RegexpFs) Create(name string) (File, error) {
if err := r.matchesName(name); err != nil {
return nil, err
}
return r.source.Create(name)
}
func (f *RegexpFile) Close() error {
return f.f.Close()
}
func (f *RegexpFile) Read(s []byte) (int, error) {
return f.f.Read(s)
}
func (f *RegexpFile) ReadAt(s []byte, o int64) (int, error) {
return f.f.ReadAt(s, o)
}
func (f *RegexpFile) Seek(o int64, w int) (int64, error) {
return f.f.Seek(o, w)
}
func (f *RegexpFile) Write(s []byte) (int, error) {
return f.f.Write(s)
}
func (f *RegexpFile) WriteAt(s []byte, o int64) (int, error) {
return f.f.WriteAt(s, o)
}
func (f *RegexpFile) Name() string {
return f.f.Name()
}
func (f *RegexpFile) Readdir(c int) (fi []os.FileInfo, err error) {
var rfi []os.FileInfo
rfi, err = f.f.Readdir(c)
if err != nil {
return nil, err
}
for _, i := range rfi {
if i.IsDir() || f.re.MatchString(i.Name()) {
fi = append(fi, i)
}
}
return fi, nil
}
func (f *RegexpFile) Readdirnames(c int) (n []string, err error) {
fi, err := f.Readdir(c)
if err != nil {
return nil, err
}
for _, s := range fi {
n = append(n, s.Name())
}
return n, nil
}
func (f *RegexpFile) Stat() (os.FileInfo, error) {
return f.f.Stat()
}
func (f *RegexpFile) Sync() error {
return f.f.Sync()
}
func (f *RegexpFile) Truncate(s int64) error {
return f.f.Truncate(s)
}
func (f *RegexpFile) WriteString(s string) (int, error) {
return f.f.WriteString(s)
}

55
vendor/github.com/spf13/afero/symlink.go generated vendored Normal file
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@ -0,0 +1,55 @@
// Copyright © 2018 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"errors"
)
// Symlinker is an optional interface in Afero. It is only implemented by the
// filesystems saying so.
// It indicates support for 3 symlink related interfaces that implement the
// behaviors of the os methods:
// - Lstat
// - Symlink, and
// - Readlink
type Symlinker interface {
Lstater
Linker
LinkReader
}
// Linker is an optional interface in Afero. It is only implemented by the
// filesystems saying so.
// It will call Symlink if the filesystem itself is, or it delegates to, the os filesystem,
// or the filesystem otherwise supports Symlink's.
type Linker interface {
SymlinkIfPossible(oldname, newname string) error
}
// ErrNoSymlink is the error that will be wrapped in an os.LinkError if a file system
// does not support Symlink's either directly or through its delegated filesystem.
// As expressed by support for the Linker interface.
var ErrNoSymlink = errors.New("symlink not supported")
// LinkReader is an optional interface in Afero. It is only implemented by the
// filesystems saying so.
type LinkReader interface {
ReadlinkIfPossible(name string) (string, error)
}
// ErrNoReadlink is the error that will be wrapped in an os.Path if a file system
// does not support the readlink operation either directly or through its delegated filesystem.
// As expressed by support for the LinkReader interface.
var ErrNoReadlink = errors.New("readlink not supported")

331
vendor/github.com/spf13/afero/unionFile.go generated vendored Normal file
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package afero
import (
"io"
"os"
"path/filepath"
"syscall"
)
// The UnionFile implements the afero.File interface and will be returned
// when reading a directory present at least in the overlay or opening a file
// for writing.
//
// The calls to
// Readdir() and Readdirnames() merge the file os.FileInfo / names from the
// base and the overlay - for files present in both layers, only those
// from the overlay will be used.
//
// When opening files for writing (Create() / OpenFile() with the right flags)
// the operations will be done in both layers, starting with the overlay. A
// successful read in the overlay will move the cursor position in the base layer
// by the number of bytes read.
type UnionFile struct {
Base File
Layer File
Merger DirsMerger
off int
files []os.FileInfo
}
func (f *UnionFile) Close() error {
// first close base, so we have a newer timestamp in the overlay. If we'd close
// the overlay first, we'd get a cacheStale the next time we access this file
// -> cache would be useless ;-)
if f.Base != nil {
f.Base.Close()
}
if f.Layer != nil {
return f.Layer.Close()
}
return BADFD
}
func (f *UnionFile) Read(s []byte) (int, error) {
if f.Layer != nil {
n, err := f.Layer.Read(s)
if (err == nil || err == io.EOF) && f.Base != nil {
// advance the file position also in the base file, the next
// call may be a write at this position (or a seek with SEEK_CUR)
if _, seekErr := f.Base.Seek(int64(n), os.SEEK_CUR); seekErr != nil {
// only overwrite err in case the seek fails: we need to
// report an eventual io.EOF to the caller
err = seekErr
}
}
return n, err
}
if f.Base != nil {
return f.Base.Read(s)
}
return 0, BADFD
}
func (f *UnionFile) ReadAt(s []byte, o int64) (int, error) {
if f.Layer != nil {
n, err := f.Layer.ReadAt(s, o)
if (err == nil || err == io.EOF) && f.Base != nil {
_, err = f.Base.Seek(o+int64(n), os.SEEK_SET)
}
return n, err
}
if f.Base != nil {
return f.Base.ReadAt(s, o)
}
return 0, BADFD
}
func (f *UnionFile) Seek(o int64, w int) (pos int64, err error) {
if f.Layer != nil {
pos, err = f.Layer.Seek(o, w)
if (err == nil || err == io.EOF) && f.Base != nil {
_, err = f.Base.Seek(o, w)
}
return pos, err
}
if f.Base != nil {
return f.Base.Seek(o, w)
}
return 0, BADFD
}
func (f *UnionFile) Write(s []byte) (n int, err error) {
if f.Layer != nil {
n, err = f.Layer.Write(s)
if err == nil && f.Base != nil { // hmm, do we have fixed size files where a write may hit the EOF mark?
_, err = f.Base.Write(s)
}
return n, err
}
if f.Base != nil {
return f.Base.Write(s)
}
return 0, BADFD
}
func (f *UnionFile) WriteAt(s []byte, o int64) (n int, err error) {
if f.Layer != nil {
n, err = f.Layer.WriteAt(s, o)
if err == nil && f.Base != nil {
_, err = f.Base.WriteAt(s, o)
}
return n, err
}
if f.Base != nil {
return f.Base.WriteAt(s, o)
}
return 0, BADFD
}
func (f *UnionFile) Name() string {
if f.Layer != nil {
return f.Layer.Name()
}
return f.Base.Name()
}
// DirsMerger is how UnionFile weaves two directories together.
// It takes the FileInfo slices from the layer and the base and returns a
// single view.
type DirsMerger func(lofi, bofi []os.FileInfo) ([]os.FileInfo, error)
var defaultUnionMergeDirsFn = func(lofi, bofi []os.FileInfo) ([]os.FileInfo, error) {
var files = make(map[string]os.FileInfo)
for _, fi := range lofi {
files[fi.Name()] = fi
}
for _, fi := range bofi {
if _, exists := files[fi.Name()]; !exists {
files[fi.Name()] = fi
}
}
rfi := make([]os.FileInfo, len(files))
i := 0
for _, fi := range files {
rfi[i] = fi
i++
}
return rfi, nil
}
// Readdir will weave the two directories together and
// return a single view of the overlayed directories.
// At the end of the directory view, the error is io.EOF if c > 0.
func (f *UnionFile) Readdir(c int) (ofi []os.FileInfo, err error) {
var merge DirsMerger = f.Merger
if merge == nil {
merge = defaultUnionMergeDirsFn
}
if f.off == 0 {
var lfi []os.FileInfo
if f.Layer != nil {
lfi, err = f.Layer.Readdir(-1)
if err != nil {
return nil, err
}
}
var bfi []os.FileInfo
if f.Base != nil {
bfi, err = f.Base.Readdir(-1)
if err != nil {
return nil, err
}
}
merged, err := merge(lfi, bfi)
if err != nil {
return nil, err
}
f.files = append(f.files, merged...)
}
files := f.files[f.off:]
if c <= 0 {
return files, nil
}
if len(files) == 0 {
return nil, io.EOF
}
if c > len(files) {
c = len(files)
}
defer func() { f.off += c }()
return files[:c], nil
}
func (f *UnionFile) Readdirnames(c int) ([]string, error) {
rfi, err := f.Readdir(c)
if err != nil {
return nil, err
}
var names []string
for _, fi := range rfi {
names = append(names, fi.Name())
}
return names, nil
}
func (f *UnionFile) Stat() (os.FileInfo, error) {
if f.Layer != nil {
return f.Layer.Stat()
}
if f.Base != nil {
return f.Base.Stat()
}
return nil, BADFD
}
func (f *UnionFile) Sync() (err error) {
if f.Layer != nil {
err = f.Layer.Sync()
if err == nil && f.Base != nil {
err = f.Base.Sync()
}
return err
}
if f.Base != nil {
return f.Base.Sync()
}
return BADFD
}
func (f *UnionFile) Truncate(s int64) (err error) {
if f.Layer != nil {
err = f.Layer.Truncate(s)
if err == nil && f.Base != nil {
err = f.Base.Truncate(s)
}
return err
}
if f.Base != nil {
return f.Base.Truncate(s)
}
return BADFD
}
func (f *UnionFile) WriteString(s string) (n int, err error) {
if f.Layer != nil {
n, err = f.Layer.WriteString(s)
if err == nil && f.Base != nil {
_, err = f.Base.WriteString(s)
}
return n, err
}
if f.Base != nil {
return f.Base.WriteString(s)
}
return 0, BADFD
}
func copyFile(base Fs, layer Fs, name string, bfh File) error {
// First make sure the directory exists
exists, err := Exists(layer, filepath.Dir(name))
if err != nil {
return err
}
if !exists {
err = layer.MkdirAll(filepath.Dir(name), 0777) // FIXME?
if err != nil {
return err
}
}
// Create the file on the overlay
lfh, err := layer.Create(name)
if err != nil {
return err
}
n, err := io.Copy(lfh, bfh)
if err != nil {
// If anything fails, clean up the file
layer.Remove(name)
lfh.Close()
return err
}
bfi, err := bfh.Stat()
if err != nil || bfi.Size() != n {
layer.Remove(name)
lfh.Close()
return syscall.EIO
}
err = lfh.Close()
if err != nil {
layer.Remove(name)
lfh.Close()
return err
}
return layer.Chtimes(name, bfi.ModTime(), bfi.ModTime())
}
func copyToLayer(base Fs, layer Fs, name string) error {
bfh, err := base.Open(name)
if err != nil {
return err
}
defer bfh.Close()
return copyFile(base, layer, name, bfh)
}
func copyFileToLayer(base Fs, layer Fs, name string, flag int, perm os.FileMode) error {
bfh, err := base.OpenFile(name, flag, perm)
if err != nil {
return err
}
defer bfh.Close()
return copyFile(base, layer, name, bfh)
}

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// Copyright ©2015 Steve Francia <spf@spf13.com>
// Portions Copyright ©2015 The Hugo Authors
// Portions Copyright 2016-present Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"bytes"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"unicode"
"golang.org/x/text/transform"
"golang.org/x/text/unicode/norm"
)
// Filepath separator defined by os.Separator.
const FilePathSeparator = string(filepath.Separator)
// Takes a reader and a path and writes the content
func (a Afero) WriteReader(path string, r io.Reader) (err error) {
return WriteReader(a.Fs, path, r)
}
func WriteReader(fs Fs, path string, r io.Reader) (err error) {
dir, _ := filepath.Split(path)
ospath := filepath.FromSlash(dir)
if ospath != "" {
err = fs.MkdirAll(ospath, 0777) // rwx, rw, r
if err != nil {
if err != os.ErrExist {
return err
}
}
}
file, err := fs.Create(path)
if err != nil {
return
}
defer file.Close()
_, err = io.Copy(file, r)
return
}
// Same as WriteReader but checks to see if file/directory already exists.
func (a Afero) SafeWriteReader(path string, r io.Reader) (err error) {
return SafeWriteReader(a.Fs, path, r)
}
func SafeWriteReader(fs Fs, path string, r io.Reader) (err error) {
dir, _ := filepath.Split(path)
ospath := filepath.FromSlash(dir)
if ospath != "" {
err = fs.MkdirAll(ospath, 0777) // rwx, rw, r
if err != nil {
return
}
}
exists, err := Exists(fs, path)
if err != nil {
return
}
if exists {
return fmt.Errorf("%v already exists", path)
}
file, err := fs.Create(path)
if err != nil {
return
}
defer file.Close()
_, err = io.Copy(file, r)
return
}
func (a Afero) GetTempDir(subPath string) string {
return GetTempDir(a.Fs, subPath)
}
// GetTempDir returns the default temp directory with trailing slash
// if subPath is not empty then it will be created recursively with mode 777 rwx rwx rwx
func GetTempDir(fs Fs, subPath string) string {
addSlash := func(p string) string {
if FilePathSeparator != p[len(p)-1:] {
p = p + FilePathSeparator
}
return p
}
dir := addSlash(os.TempDir())
if subPath != "" {
// preserve windows backslash :-(
if FilePathSeparator == "\\" {
subPath = strings.Replace(subPath, "\\", "____", -1)
}
dir = dir + UnicodeSanitize((subPath))
if FilePathSeparator == "\\" {
dir = strings.Replace(dir, "____", "\\", -1)
}
if exists, _ := Exists(fs, dir); exists {
return addSlash(dir)
}
err := fs.MkdirAll(dir, 0777)
if err != nil {
panic(err)
}
dir = addSlash(dir)
}
return dir
}
// Rewrite string to remove non-standard path characters
func UnicodeSanitize(s string) string {
source := []rune(s)
target := make([]rune, 0, len(source))
for _, r := range source {
if unicode.IsLetter(r) ||
unicode.IsDigit(r) ||
unicode.IsMark(r) ||
r == '.' ||
r == '/' ||
r == '\\' ||
r == '_' ||
r == '-' ||
r == '%' ||
r == ' ' ||
r == '#' {
target = append(target, r)
}
}
return string(target)
}
// Transform characters with accents into plain forms.
func NeuterAccents(s string) string {
t := transform.Chain(norm.NFD, transform.RemoveFunc(isMn), norm.NFC)
result, _, _ := transform.String(t, string(s))
return result
}
func isMn(r rune) bool {
return unicode.Is(unicode.Mn, r) // Mn: nonspacing marks
}
func (a Afero) FileContainsBytes(filename string, subslice []byte) (bool, error) {
return FileContainsBytes(a.Fs, filename, subslice)
}
// Check if a file contains a specified byte slice.
func FileContainsBytes(fs Fs, filename string, subslice []byte) (bool, error) {
f, err := fs.Open(filename)
if err != nil {
return false, err
}
defer f.Close()
return readerContainsAny(f, subslice), nil
}
func (a Afero) FileContainsAnyBytes(filename string, subslices [][]byte) (bool, error) {
return FileContainsAnyBytes(a.Fs, filename, subslices)
}
// Check if a file contains any of the specified byte slices.
func FileContainsAnyBytes(fs Fs, filename string, subslices [][]byte) (bool, error) {
f, err := fs.Open(filename)
if err != nil {
return false, err
}
defer f.Close()
return readerContainsAny(f, subslices...), nil
}
// readerContains reports whether any of the subslices is within r.
func readerContainsAny(r io.Reader, subslices ...[]byte) bool {
if r == nil || len(subslices) == 0 {
return false
}
largestSlice := 0
for _, sl := range subslices {
if len(sl) > largestSlice {
largestSlice = len(sl)
}
}
if largestSlice == 0 {
return false
}
bufflen := largestSlice * 4
halflen := bufflen / 2
buff := make([]byte, bufflen)
var err error
var n, i int
for {
i++
if i == 1 {
n, err = io.ReadAtLeast(r, buff[:halflen], halflen)
} else {
if i != 2 {
// shift left to catch overlapping matches
copy(buff[:], buff[halflen:])
}
n, err = io.ReadAtLeast(r, buff[halflen:], halflen)
}
if n > 0 {
for _, sl := range subslices {
if bytes.Contains(buff, sl) {
return true
}
}
}
if err != nil {
break
}
}
return false
}
func (a Afero) DirExists(path string) (bool, error) {
return DirExists(a.Fs, path)
}
// DirExists checks if a path exists and is a directory.
func DirExists(fs Fs, path string) (bool, error) {
fi, err := fs.Stat(path)
if err == nil && fi.IsDir() {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func (a Afero) IsDir(path string) (bool, error) {
return IsDir(a.Fs, path)
}
// IsDir checks if a given path is a directory.
func IsDir(fs Fs, path string) (bool, error) {
fi, err := fs.Stat(path)
if err != nil {
return false, err
}
return fi.IsDir(), nil
}
func (a Afero) IsEmpty(path string) (bool, error) {
return IsEmpty(a.Fs, path)
}
// IsEmpty checks if a given file or directory is empty.
func IsEmpty(fs Fs, path string) (bool, error) {
if b, _ := Exists(fs, path); !b {
return false, fmt.Errorf("%q path does not exist", path)
}
fi, err := fs.Stat(path)
if err != nil {
return false, err
}
if fi.IsDir() {
f, err := fs.Open(path)
if err != nil {
return false, err
}
defer f.Close()
list, err := f.Readdir(-1)
return len(list) == 0, nil
}
return fi.Size() == 0, nil
}
func (a Afero) Exists(path string) (bool, error) {
return Exists(a.Fs, path)
}
// Check if a file or directory exists.
func Exists(fs Fs, path string) (bool, error) {
_, err := fs.Stat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func FullBaseFsPath(basePathFs *BasePathFs, relativePath string) string {
combinedPath := filepath.Join(basePathFs.path, relativePath)
if parent, ok := basePathFs.source.(*BasePathFs); ok {
return FullBaseFsPath(parent, combinedPath)
}
return combinedPath
}

3
vendor/golang.org/x/text/AUTHORS generated vendored Normal file
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# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

3
vendor/golang.org/x/text/CONTRIBUTORS generated vendored Normal file
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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

27
vendor/golang.org/x/text/LICENSE generated vendored Normal file
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Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/text/PATENTS generated vendored Normal file
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Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

709
vendor/golang.org/x/text/transform/transform.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package transform provides reader and writer wrappers that transform the
// bytes passing through as well as various transformations. Example
// transformations provided by other packages include normalization and
// conversion between character sets.
package transform // import "golang.org/x/text/transform"
import (
"bytes"
"errors"
"io"
"unicode/utf8"
)
var (
// ErrShortDst means that the destination buffer was too short to
// receive all of the transformed bytes.
ErrShortDst = errors.New("transform: short destination buffer")
// ErrShortSrc means that the source buffer has insufficient data to
// complete the transformation.
ErrShortSrc = errors.New("transform: short source buffer")
// ErrEndOfSpan means that the input and output (the transformed input)
// are not identical.
ErrEndOfSpan = errors.New("transform: input and output are not identical")
// errInconsistentByteCount means that Transform returned success (nil
// error) but also returned nSrc inconsistent with the src argument.
errInconsistentByteCount = errors.New("transform: inconsistent byte count returned")
// errShortInternal means that an internal buffer is not large enough
// to make progress and the Transform operation must be aborted.
errShortInternal = errors.New("transform: short internal buffer")
)
// Transformer transforms bytes.
type Transformer interface {
// Transform writes to dst the transformed bytes read from src, and
// returns the number of dst bytes written and src bytes read. The
// atEOF argument tells whether src represents the last bytes of the
// input.
//
// Callers should always process the nDst bytes produced and account
// for the nSrc bytes consumed before considering the error err.
//
// A nil error means that all of the transformed bytes (whether freshly
// transformed from src or left over from previous Transform calls)
// were written to dst. A nil error can be returned regardless of
// whether atEOF is true. If err is nil then nSrc must equal len(src);
// the converse is not necessarily true.
//
// ErrShortDst means that dst was too short to receive all of the
// transformed bytes. ErrShortSrc means that src had insufficient data
// to complete the transformation. If both conditions apply, then
// either error may be returned. Other than the error conditions listed
// here, implementations are free to report other errors that arise.
Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error)
// Reset resets the state and allows a Transformer to be reused.
Reset()
}
// SpanningTransformer extends the Transformer interface with a Span method
// that determines how much of the input already conforms to the Transformer.
type SpanningTransformer interface {
Transformer
// Span returns a position in src such that transforming src[:n] results in
// identical output src[:n] for these bytes. It does not necessarily return
// the largest such n. The atEOF argument tells whether src represents the
// last bytes of the input.
//
// Callers should always account for the n bytes consumed before
// considering the error err.
//
// A nil error means that all input bytes are known to be identical to the
// output produced by the Transformer. A nil error can be returned
// regardless of whether atEOF is true. If err is nil, then n must
// equal len(src); the converse is not necessarily true.
//
// ErrEndOfSpan means that the Transformer output may differ from the
// input after n bytes. Note that n may be len(src), meaning that the output
// would contain additional bytes after otherwise identical output.
// ErrShortSrc means that src had insufficient data to determine whether the
// remaining bytes would change. Other than the error conditions listed
// here, implementations are free to report other errors that arise.
//
// Calling Span can modify the Transformer state as a side effect. In
// effect, it does the transformation just as calling Transform would, only
// without copying to a destination buffer and only up to a point it can
// determine the input and output bytes are the same. This is obviously more
// limited than calling Transform, but can be more efficient in terms of
// copying and allocating buffers. Calls to Span and Transform may be
// interleaved.
Span(src []byte, atEOF bool) (n int, err error)
}
// NopResetter can be embedded by implementations of Transformer to add a nop
// Reset method.
type NopResetter struct{}
// Reset implements the Reset method of the Transformer interface.
func (NopResetter) Reset() {}
// Reader wraps another io.Reader by transforming the bytes read.
type Reader struct {
r io.Reader
t Transformer
err error
// dst[dst0:dst1] contains bytes that have been transformed by t but
// not yet copied out via Read.
dst []byte
dst0, dst1 int
// src[src0:src1] contains bytes that have been read from r but not
// yet transformed through t.
src []byte
src0, src1 int
// transformComplete is whether the transformation is complete,
// regardless of whether or not it was successful.
transformComplete bool
}
const defaultBufSize = 4096
// NewReader returns a new Reader that wraps r by transforming the bytes read
// via t. It calls Reset on t.
func NewReader(r io.Reader, t Transformer) *Reader {
t.Reset()
return &Reader{
r: r,
t: t,
dst: make([]byte, defaultBufSize),
src: make([]byte, defaultBufSize),
}
}
// Read implements the io.Reader interface.
func (r *Reader) Read(p []byte) (int, error) {
n, err := 0, error(nil)
for {
// Copy out any transformed bytes and return the final error if we are done.
if r.dst0 != r.dst1 {
n = copy(p, r.dst[r.dst0:r.dst1])
r.dst0 += n
if r.dst0 == r.dst1 && r.transformComplete {
return n, r.err
}
return n, nil
} else if r.transformComplete {
return 0, r.err
}
// Try to transform some source bytes, or to flush the transformer if we
// are out of source bytes. We do this even if r.r.Read returned an error.
// As the io.Reader documentation says, "process the n > 0 bytes returned
// before considering the error".
if r.src0 != r.src1 || r.err != nil {
r.dst0 = 0
r.dst1, n, err = r.t.Transform(r.dst, r.src[r.src0:r.src1], r.err == io.EOF)
r.src0 += n
switch {
case err == nil:
if r.src0 != r.src1 {
r.err = errInconsistentByteCount
}
// The Transform call was successful; we are complete if we
// cannot read more bytes into src.
r.transformComplete = r.err != nil
continue
case err == ErrShortDst && (r.dst1 != 0 || n != 0):
// Make room in dst by copying out, and try again.
continue
case err == ErrShortSrc && r.src1-r.src0 != len(r.src) && r.err == nil:
// Read more bytes into src via the code below, and try again.
default:
r.transformComplete = true
// The reader error (r.err) takes precedence over the
// transformer error (err) unless r.err is nil or io.EOF.
if r.err == nil || r.err == io.EOF {
r.err = err
}
continue
}
}
// Move any untransformed source bytes to the start of the buffer
// and read more bytes.
if r.src0 != 0 {
r.src0, r.src1 = 0, copy(r.src, r.src[r.src0:r.src1])
}
n, r.err = r.r.Read(r.src[r.src1:])
r.src1 += n
}
}
// TODO: implement ReadByte (and ReadRune??).
// Writer wraps another io.Writer by transforming the bytes read.
// The user needs to call Close to flush unwritten bytes that may
// be buffered.
type Writer struct {
w io.Writer
t Transformer
dst []byte
// src[:n] contains bytes that have not yet passed through t.
src []byte
n int
}
// NewWriter returns a new Writer that wraps w by transforming the bytes written
// via t. It calls Reset on t.
func NewWriter(w io.Writer, t Transformer) *Writer {
t.Reset()
return &Writer{
w: w,
t: t,
dst: make([]byte, defaultBufSize),
src: make([]byte, defaultBufSize),
}
}
// Write implements the io.Writer interface. If there are not enough
// bytes available to complete a Transform, the bytes will be buffered
// for the next write. Call Close to convert the remaining bytes.
func (w *Writer) Write(data []byte) (n int, err error) {
src := data
if w.n > 0 {
// Append bytes from data to the last remainder.
// TODO: limit the amount copied on first try.
n = copy(w.src[w.n:], data)
w.n += n
src = w.src[:w.n]
}
for {
nDst, nSrc, err := w.t.Transform(w.dst, src, false)
if _, werr := w.w.Write(w.dst[:nDst]); werr != nil {
return n, werr
}
src = src[nSrc:]
if w.n == 0 {
n += nSrc
} else if len(src) <= n {
// Enough bytes from w.src have been consumed. We make src point
// to data instead to reduce the copying.
w.n = 0
n -= len(src)
src = data[n:]
if n < len(data) && (err == nil || err == ErrShortSrc) {
continue
}
}
switch err {
case ErrShortDst:
// This error is okay as long as we are making progress.
if nDst > 0 || nSrc > 0 {
continue
}
case ErrShortSrc:
if len(src) < len(w.src) {
m := copy(w.src, src)
// If w.n > 0, bytes from data were already copied to w.src and n
// was already set to the number of bytes consumed.
if w.n == 0 {
n += m
}
w.n = m
err = nil
} else if nDst > 0 || nSrc > 0 {
// Not enough buffer to store the remainder. Keep processing as
// long as there is progress. Without this case, transforms that
// require a lookahead larger than the buffer may result in an
// error. This is not something one may expect to be common in
// practice, but it may occur when buffers are set to small
// sizes during testing.
continue
}
case nil:
if w.n > 0 {
err = errInconsistentByteCount
}
}
return n, err
}
}
// Close implements the io.Closer interface.
func (w *Writer) Close() error {
src := w.src[:w.n]
for {
nDst, nSrc, err := w.t.Transform(w.dst, src, true)
if _, werr := w.w.Write(w.dst[:nDst]); werr != nil {
return werr
}
if err != ErrShortDst {
return err
}
src = src[nSrc:]
}
}
type nop struct{ NopResetter }
func (nop) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
n := copy(dst, src)
if n < len(src) {
err = ErrShortDst
}
return n, n, err
}
func (nop) Span(src []byte, atEOF bool) (n int, err error) {
return len(src), nil
}
type discard struct{ NopResetter }
func (discard) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
return 0, len(src), nil
}
var (
// Discard is a Transformer for which all Transform calls succeed
// by consuming all bytes and writing nothing.
Discard Transformer = discard{}
// Nop is a SpanningTransformer that copies src to dst.
Nop SpanningTransformer = nop{}
)
// chain is a sequence of links. A chain with N Transformers has N+1 links and
// N+1 buffers. Of those N+1 buffers, the first and last are the src and dst
// buffers given to chain.Transform and the middle N-1 buffers are intermediate
// buffers owned by the chain. The i'th link transforms bytes from the i'th
// buffer chain.link[i].b at read offset chain.link[i].p to the i+1'th buffer
// chain.link[i+1].b at write offset chain.link[i+1].n, for i in [0, N).
type chain struct {
link []link
err error
// errStart is the index at which the error occurred plus 1. Processing
// errStart at this level at the next call to Transform. As long as
// errStart > 0, chain will not consume any more source bytes.
errStart int
}
func (c *chain) fatalError(errIndex int, err error) {
if i := errIndex + 1; i > c.errStart {
c.errStart = i
c.err = err
}
}
type link struct {
t Transformer
// b[p:n] holds the bytes to be transformed by t.
b []byte
p int
n int
}
func (l *link) src() []byte {
return l.b[l.p:l.n]
}
func (l *link) dst() []byte {
return l.b[l.n:]
}
// Chain returns a Transformer that applies t in sequence.
func Chain(t ...Transformer) Transformer {
if len(t) == 0 {
return nop{}
}
c := &chain{link: make([]link, len(t)+1)}
for i, tt := range t {
c.link[i].t = tt
}
// Allocate intermediate buffers.
b := make([][defaultBufSize]byte, len(t)-1)
for i := range b {
c.link[i+1].b = b[i][:]
}
return c
}
// Reset resets the state of Chain. It calls Reset on all the Transformers.
func (c *chain) Reset() {
for i, l := range c.link {
if l.t != nil {
l.t.Reset()
}
c.link[i].p, c.link[i].n = 0, 0
}
}
// TODO: make chain use Span (is going to be fun to implement!)
// Transform applies the transformers of c in sequence.
func (c *chain) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
// Set up src and dst in the chain.
srcL := &c.link[0]
dstL := &c.link[len(c.link)-1]
srcL.b, srcL.p, srcL.n = src, 0, len(src)
dstL.b, dstL.n = dst, 0
var lastFull, needProgress bool // for detecting progress
// i is the index of the next Transformer to apply, for i in [low, high].
// low is the lowest index for which c.link[low] may still produce bytes.
// high is the highest index for which c.link[high] has a Transformer.
// The error returned by Transform determines whether to increase or
// decrease i. We try to completely fill a buffer before converting it.
for low, i, high := c.errStart, c.errStart, len(c.link)-2; low <= i && i <= high; {
in, out := &c.link[i], &c.link[i+1]
nDst, nSrc, err0 := in.t.Transform(out.dst(), in.src(), atEOF && low == i)
out.n += nDst
in.p += nSrc
if i > 0 && in.p == in.n {
in.p, in.n = 0, 0
}
needProgress, lastFull = lastFull, false
switch err0 {
case ErrShortDst:
// Process the destination buffer next. Return if we are already
// at the high index.
if i == high {
return dstL.n, srcL.p, ErrShortDst
}
if out.n != 0 {
i++
// If the Transformer at the next index is not able to process any
// source bytes there is nothing that can be done to make progress
// and the bytes will remain unprocessed. lastFull is used to
// detect this and break out of the loop with a fatal error.
lastFull = true
continue
}
// The destination buffer was too small, but is completely empty.
// Return a fatal error as this transformation can never complete.
c.fatalError(i, errShortInternal)
case ErrShortSrc:
if i == 0 {
// Save ErrShortSrc in err. All other errors take precedence.
err = ErrShortSrc
break
}
// Source bytes were depleted before filling up the destination buffer.
// Verify we made some progress, move the remaining bytes to the errStart
// and try to get more source bytes.
if needProgress && nSrc == 0 || in.n-in.p == len(in.b) {
// There were not enough source bytes to proceed while the source
// buffer cannot hold any more bytes. Return a fatal error as this
// transformation can never complete.
c.fatalError(i, errShortInternal)
break
}
// in.b is an internal buffer and we can make progress.
in.p, in.n = 0, copy(in.b, in.src())
fallthrough
case nil:
// if i == low, we have depleted the bytes at index i or any lower levels.
// In that case we increase low and i. In all other cases we decrease i to
// fetch more bytes before proceeding to the next index.
if i > low {
i--
continue
}
default:
c.fatalError(i, err0)
}
// Exhausted level low or fatal error: increase low and continue
// to process the bytes accepted so far.
i++
low = i
}
// If c.errStart > 0, this means we found a fatal error. We will clear
// all upstream buffers. At this point, no more progress can be made
// downstream, as Transform would have bailed while handling ErrShortDst.
if c.errStart > 0 {
for i := 1; i < c.errStart; i++ {
c.link[i].p, c.link[i].n = 0, 0
}
err, c.errStart, c.err = c.err, 0, nil
}
return dstL.n, srcL.p, err
}
// Deprecated: Use runes.Remove instead.
func RemoveFunc(f func(r rune) bool) Transformer {
return removeF(f)
}
type removeF func(r rune) bool
func (removeF) Reset() {}
// Transform implements the Transformer interface.
func (t removeF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
for r, sz := rune(0), 0; len(src) > 0; src = src[sz:] {
if r = rune(src[0]); r < utf8.RuneSelf {
sz = 1
} else {
r, sz = utf8.DecodeRune(src)
if sz == 1 {
// Invalid rune.
if !atEOF && !utf8.FullRune(src) {
err = ErrShortSrc
break
}
// We replace illegal bytes with RuneError. Not doing so might
// otherwise turn a sequence of invalid UTF-8 into valid UTF-8.
// The resulting byte sequence may subsequently contain runes
// for which t(r) is true that were passed unnoticed.
if !t(r) {
if nDst+3 > len(dst) {
err = ErrShortDst
break
}
nDst += copy(dst[nDst:], "\uFFFD")
}
nSrc++
continue
}
}
if !t(r) {
if nDst+sz > len(dst) {
err = ErrShortDst
break
}
nDst += copy(dst[nDst:], src[:sz])
}
nSrc += sz
}
return
}
// grow returns a new []byte that is longer than b, and copies the first n bytes
// of b to the start of the new slice.
func grow(b []byte, n int) []byte {
m := len(b)
if m <= 32 {
m = 64
} else if m <= 256 {
m *= 2
} else {
m += m >> 1
}
buf := make([]byte, m)
copy(buf, b[:n])
return buf
}
const initialBufSize = 128
// String returns a string with the result of converting s[:n] using t, where
// n <= len(s). If err == nil, n will be len(s). It calls Reset on t.
func String(t Transformer, s string) (result string, n int, err error) {
t.Reset()
if s == "" {
// Fast path for the common case for empty input. Results in about a
// 86% reduction of running time for BenchmarkStringLowerEmpty.
if _, _, err := t.Transform(nil, nil, true); err == nil {
return "", 0, nil
}
}
// Allocate only once. Note that both dst and src escape when passed to
// Transform.
buf := [2 * initialBufSize]byte{}
dst := buf[:initialBufSize:initialBufSize]
src := buf[initialBufSize : 2*initialBufSize]
// The input string s is transformed in multiple chunks (starting with a
// chunk size of initialBufSize). nDst and nSrc are per-chunk (or
// per-Transform-call) indexes, pDst and pSrc are overall indexes.
nDst, nSrc := 0, 0
pDst, pSrc := 0, 0
// pPrefix is the length of a common prefix: the first pPrefix bytes of the
// result will equal the first pPrefix bytes of s. It is not guaranteed to
// be the largest such value, but if pPrefix, len(result) and len(s) are
// all equal after the final transform (i.e. calling Transform with atEOF
// being true returned nil error) then we don't need to allocate a new
// result string.
pPrefix := 0
for {
// Invariant: pDst == pPrefix && pSrc == pPrefix.
n := copy(src, s[pSrc:])
nDst, nSrc, err = t.Transform(dst, src[:n], pSrc+n == len(s))
pDst += nDst
pSrc += nSrc
// TODO: let transformers implement an optional Spanner interface, akin
// to norm's QuickSpan. This would even allow us to avoid any allocation.
if !bytes.Equal(dst[:nDst], src[:nSrc]) {
break
}
pPrefix = pSrc
if err == ErrShortDst {
// A buffer can only be short if a transformer modifies its input.
break
} else if err == ErrShortSrc {
if nSrc == 0 {
// No progress was made.
break
}
// Equal so far and !atEOF, so continue checking.
} else if err != nil || pPrefix == len(s) {
return string(s[:pPrefix]), pPrefix, err
}
}
// Post-condition: pDst == pPrefix + nDst && pSrc == pPrefix + nSrc.
// We have transformed the first pSrc bytes of the input s to become pDst
// transformed bytes. Those transformed bytes are discontiguous: the first
// pPrefix of them equal s[:pPrefix] and the last nDst of them equal
// dst[:nDst]. We copy them around, into a new dst buffer if necessary, so
// that they become one contiguous slice: dst[:pDst].
if pPrefix != 0 {
newDst := dst
if pDst > len(newDst) {
newDst = make([]byte, len(s)+nDst-nSrc)
}
copy(newDst[pPrefix:pDst], dst[:nDst])
copy(newDst[:pPrefix], s[:pPrefix])
dst = newDst
}
// Prevent duplicate Transform calls with atEOF being true at the end of
// the input. Also return if we have an unrecoverable error.
if (err == nil && pSrc == len(s)) ||
(err != nil && err != ErrShortDst && err != ErrShortSrc) {
return string(dst[:pDst]), pSrc, err
}
// Transform the remaining input, growing dst and src buffers as necessary.
for {
n := copy(src, s[pSrc:])
atEOF := pSrc+n == len(s)
nDst, nSrc, err := t.Transform(dst[pDst:], src[:n], atEOF)
pDst += nDst
pSrc += nSrc
// If we got ErrShortDst or ErrShortSrc, do not grow as long as we can
// make progress. This may avoid excessive allocations.
if err == ErrShortDst {
if nDst == 0 {
dst = grow(dst, pDst)
}
} else if err == ErrShortSrc {
if atEOF {
return string(dst[:pDst]), pSrc, err
}
if nSrc == 0 {
src = grow(src, 0)
}
} else if err != nil || pSrc == len(s) {
return string(dst[:pDst]), pSrc, err
}
}
}
// Bytes returns a new byte slice with the result of converting b[:n] using t,
// where n <= len(b). If err == nil, n will be len(b). It calls Reset on t.
func Bytes(t Transformer, b []byte) (result []byte, n int, err error) {
return doAppend(t, 0, make([]byte, len(b)), b)
}
// Append appends the result of converting src[:n] using t to dst, where
// n <= len(src), If err == nil, n will be len(src). It calls Reset on t.
func Append(t Transformer, dst, src []byte) (result []byte, n int, err error) {
if len(dst) == cap(dst) {
n := len(src) + len(dst) // It is okay for this to be 0.
b := make([]byte, n)
dst = b[:copy(b, dst)]
}
return doAppend(t, len(dst), dst[:cap(dst)], src)
}
func doAppend(t Transformer, pDst int, dst, src []byte) (result []byte, n int, err error) {
t.Reset()
pSrc := 0
for {
nDst, nSrc, err := t.Transform(dst[pDst:], src[pSrc:], true)
pDst += nDst
pSrc += nSrc
if err != ErrShortDst {
return dst[:pDst], pSrc, err
}
// Grow the destination buffer, but do not grow as long as we can make
// progress. This may avoid excessive allocations.
if nDst == 0 {
dst = grow(dst, pDst)
}
}
}

512
vendor/golang.org/x/text/unicode/norm/composition.go generated vendored Normal file
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@ -0,0 +1,512 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import "unicode/utf8"
const (
maxNonStarters = 30
// The maximum number of characters needed for a buffer is
// maxNonStarters + 1 for the starter + 1 for the GCJ
maxBufferSize = maxNonStarters + 2
maxNFCExpansion = 3 // NFC(0x1D160)
maxNFKCExpansion = 18 // NFKC(0xFDFA)
maxByteBufferSize = utf8.UTFMax * maxBufferSize // 128
)
// ssState is used for reporting the segment state after inserting a rune.
// It is returned by streamSafe.next.
type ssState int
const (
// Indicates a rune was successfully added to the segment.
ssSuccess ssState = iota
// Indicates a rune starts a new segment and should not be added.
ssStarter
// Indicates a rune caused a segment overflow and a CGJ should be inserted.
ssOverflow
)
// streamSafe implements the policy of when a CGJ should be inserted.
type streamSafe uint8
// first inserts the first rune of a segment. It is a faster version of next if
// it is known p represents the first rune in a segment.
func (ss *streamSafe) first(p Properties) {
*ss = streamSafe(p.nTrailingNonStarters())
}
// insert returns a ssState value to indicate whether a rune represented by p
// can be inserted.
func (ss *streamSafe) next(p Properties) ssState {
if *ss > maxNonStarters {
panic("streamSafe was not reset")
}
n := p.nLeadingNonStarters()
if *ss += streamSafe(n); *ss > maxNonStarters {
*ss = 0
return ssOverflow
}
// The Stream-Safe Text Processing prescribes that the counting can stop
// as soon as a starter is encountered. However, there are some starters,
// like Jamo V and T, that can combine with other runes, leaving their
// successive non-starters appended to the previous, possibly causing an
// overflow. We will therefore consider any rune with a non-zero nLead to
// be a non-starter. Note that it always hold that if nLead > 0 then
// nLead == nTrail.
if n == 0 {
*ss = streamSafe(p.nTrailingNonStarters())
return ssStarter
}
return ssSuccess
}
// backwards is used for checking for overflow and segment starts
// when traversing a string backwards. Users do not need to call first
// for the first rune. The state of the streamSafe retains the count of
// the non-starters loaded.
func (ss *streamSafe) backwards(p Properties) ssState {
if *ss > maxNonStarters {
panic("streamSafe was not reset")
}
c := *ss + streamSafe(p.nTrailingNonStarters())
if c > maxNonStarters {
return ssOverflow
}
*ss = c
if p.nLeadingNonStarters() == 0 {
return ssStarter
}
return ssSuccess
}
func (ss streamSafe) isMax() bool {
return ss == maxNonStarters
}
// GraphemeJoiner is inserted after maxNonStarters non-starter runes.
const GraphemeJoiner = "\u034F"
// reorderBuffer is used to normalize a single segment. Characters inserted with
// insert are decomposed and reordered based on CCC. The compose method can
// be used to recombine characters. Note that the byte buffer does not hold
// the UTF-8 characters in order. Only the rune array is maintained in sorted
// order. flush writes the resulting segment to a byte array.
type reorderBuffer struct {
rune [maxBufferSize]Properties // Per character info.
byte [maxByteBufferSize]byte // UTF-8 buffer. Referenced by runeInfo.pos.
nbyte uint8 // Number or bytes.
ss streamSafe // For limiting length of non-starter sequence.
nrune int // Number of runeInfos.
f formInfo
src input
nsrc int
tmpBytes input
out []byte
flushF func(*reorderBuffer) bool
}
func (rb *reorderBuffer) init(f Form, src []byte) {
rb.f = *formTable[f]
rb.src.setBytes(src)
rb.nsrc = len(src)
rb.ss = 0
}
func (rb *reorderBuffer) initString(f Form, src string) {
rb.f = *formTable[f]
rb.src.setString(src)
rb.nsrc = len(src)
rb.ss = 0
}
func (rb *reorderBuffer) setFlusher(out []byte, f func(*reorderBuffer) bool) {
rb.out = out
rb.flushF = f
}
// reset discards all characters from the buffer.
func (rb *reorderBuffer) reset() {
rb.nrune = 0
rb.nbyte = 0
}
func (rb *reorderBuffer) doFlush() bool {
if rb.f.composing {
rb.compose()
}
res := rb.flushF(rb)
rb.reset()
return res
}
// appendFlush appends the normalized segment to rb.out.
func appendFlush(rb *reorderBuffer) bool {
for i := 0; i < rb.nrune; i++ {
start := rb.rune[i].pos
end := start + rb.rune[i].size
rb.out = append(rb.out, rb.byte[start:end]...)
}
return true
}
// flush appends the normalized segment to out and resets rb.
func (rb *reorderBuffer) flush(out []byte) []byte {
for i := 0; i < rb.nrune; i++ {
start := rb.rune[i].pos
end := start + rb.rune[i].size
out = append(out, rb.byte[start:end]...)
}
rb.reset()
return out
}
// flushCopy copies the normalized segment to buf and resets rb.
// It returns the number of bytes written to buf.
func (rb *reorderBuffer) flushCopy(buf []byte) int {
p := 0
for i := 0; i < rb.nrune; i++ {
runep := rb.rune[i]
p += copy(buf[p:], rb.byte[runep.pos:runep.pos+runep.size])
}
rb.reset()
return p
}
// insertOrdered inserts a rune in the buffer, ordered by Canonical Combining Class.
// It returns false if the buffer is not large enough to hold the rune.
// It is used internally by insert and insertString only.
func (rb *reorderBuffer) insertOrdered(info Properties) {
n := rb.nrune
b := rb.rune[:]
cc := info.ccc
if cc > 0 {
// Find insertion position + move elements to make room.
for ; n > 0; n-- {
if b[n-1].ccc <= cc {
break
}
b[n] = b[n-1]
}
}
rb.nrune += 1
pos := uint8(rb.nbyte)
rb.nbyte += utf8.UTFMax
info.pos = pos
b[n] = info
}
// insertErr is an error code returned by insert. Using this type instead
// of error improves performance up to 20% for many of the benchmarks.
type insertErr int
const (
iSuccess insertErr = -iota
iShortDst
iShortSrc
)
// insertFlush inserts the given rune in the buffer ordered by CCC.
// If a decomposition with multiple segments are encountered, they leading
// ones are flushed.
// It returns a non-zero error code if the rune was not inserted.
func (rb *reorderBuffer) insertFlush(src input, i int, info Properties) insertErr {
if rune := src.hangul(i); rune != 0 {
rb.decomposeHangul(rune)
return iSuccess
}
if info.hasDecomposition() {
return rb.insertDecomposed(info.Decomposition())
}
rb.insertSingle(src, i, info)
return iSuccess
}
// insertUnsafe inserts the given rune in the buffer ordered by CCC.
// It is assumed there is sufficient space to hold the runes. It is the
// responsibility of the caller to ensure this. This can be done by checking
// the state returned by the streamSafe type.
func (rb *reorderBuffer) insertUnsafe(src input, i int, info Properties) {
if rune := src.hangul(i); rune != 0 {
rb.decomposeHangul(rune)
}
if info.hasDecomposition() {
// TODO: inline.
rb.insertDecomposed(info.Decomposition())
} else {
rb.insertSingle(src, i, info)
}
}
// insertDecomposed inserts an entry in to the reorderBuffer for each rune
// in dcomp. dcomp must be a sequence of decomposed UTF-8-encoded runes.
// It flushes the buffer on each new segment start.
func (rb *reorderBuffer) insertDecomposed(dcomp []byte) insertErr {
rb.tmpBytes.setBytes(dcomp)
// As the streamSafe accounting already handles the counting for modifiers,
// we don't have to call next. However, we do need to keep the accounting
// intact when flushing the buffer.
for i := 0; i < len(dcomp); {
info := rb.f.info(rb.tmpBytes, i)
if info.BoundaryBefore() && rb.nrune > 0 && !rb.doFlush() {
return iShortDst
}
i += copy(rb.byte[rb.nbyte:], dcomp[i:i+int(info.size)])
rb.insertOrdered(info)
}
return iSuccess
}
// insertSingle inserts an entry in the reorderBuffer for the rune at
// position i. info is the runeInfo for the rune at position i.
func (rb *reorderBuffer) insertSingle(src input, i int, info Properties) {
src.copySlice(rb.byte[rb.nbyte:], i, i+int(info.size))
rb.insertOrdered(info)
}
// insertCGJ inserts a Combining Grapheme Joiner (0x034f) into rb.
func (rb *reorderBuffer) insertCGJ() {
rb.insertSingle(input{str: GraphemeJoiner}, 0, Properties{size: uint8(len(GraphemeJoiner))})
}
// appendRune inserts a rune at the end of the buffer. It is used for Hangul.
func (rb *reorderBuffer) appendRune(r rune) {
bn := rb.nbyte
sz := utf8.EncodeRune(rb.byte[bn:], rune(r))
rb.nbyte += utf8.UTFMax
rb.rune[rb.nrune] = Properties{pos: bn, size: uint8(sz)}
rb.nrune++
}
// assignRune sets a rune at position pos. It is used for Hangul and recomposition.
func (rb *reorderBuffer) assignRune(pos int, r rune) {
bn := rb.rune[pos].pos
sz := utf8.EncodeRune(rb.byte[bn:], rune(r))
rb.rune[pos] = Properties{pos: bn, size: uint8(sz)}
}
// runeAt returns the rune at position n. It is used for Hangul and recomposition.
func (rb *reorderBuffer) runeAt(n int) rune {
inf := rb.rune[n]
r, _ := utf8.DecodeRune(rb.byte[inf.pos : inf.pos+inf.size])
return r
}
// bytesAt returns the UTF-8 encoding of the rune at position n.
// It is used for Hangul and recomposition.
func (rb *reorderBuffer) bytesAt(n int) []byte {
inf := rb.rune[n]
return rb.byte[inf.pos : int(inf.pos)+int(inf.size)]
}
// For Hangul we combine algorithmically, instead of using tables.
const (
hangulBase = 0xAC00 // UTF-8(hangulBase) -> EA B0 80
hangulBase0 = 0xEA
hangulBase1 = 0xB0
hangulBase2 = 0x80
hangulEnd = hangulBase + jamoLVTCount // UTF-8(0xD7A4) -> ED 9E A4
hangulEnd0 = 0xED
hangulEnd1 = 0x9E
hangulEnd2 = 0xA4
jamoLBase = 0x1100 // UTF-8(jamoLBase) -> E1 84 00
jamoLBase0 = 0xE1
jamoLBase1 = 0x84
jamoLEnd = 0x1113
jamoVBase = 0x1161
jamoVEnd = 0x1176
jamoTBase = 0x11A7
jamoTEnd = 0x11C3
jamoTCount = 28
jamoVCount = 21
jamoVTCount = 21 * 28
jamoLVTCount = 19 * 21 * 28
)
const hangulUTF8Size = 3
func isHangul(b []byte) bool {
if len(b) < hangulUTF8Size {
return false
}
b0 := b[0]
if b0 < hangulBase0 {
return false
}
b1 := b[1]
switch {
case b0 == hangulBase0:
return b1 >= hangulBase1
case b0 < hangulEnd0:
return true
case b0 > hangulEnd0:
return false
case b1 < hangulEnd1:
return true
}
return b1 == hangulEnd1 && b[2] < hangulEnd2
}
func isHangulString(b string) bool {
if len(b) < hangulUTF8Size {
return false
}
b0 := b[0]
if b0 < hangulBase0 {
return false
}
b1 := b[1]
switch {
case b0 == hangulBase0:
return b1 >= hangulBase1
case b0 < hangulEnd0:
return true
case b0 > hangulEnd0:
return false
case b1 < hangulEnd1:
return true
}
return b1 == hangulEnd1 && b[2] < hangulEnd2
}
// Caller must ensure len(b) >= 2.
func isJamoVT(b []byte) bool {
// True if (rune & 0xff00) == jamoLBase
return b[0] == jamoLBase0 && (b[1]&0xFC) == jamoLBase1
}
func isHangulWithoutJamoT(b []byte) bool {
c, _ := utf8.DecodeRune(b)
c -= hangulBase
return c < jamoLVTCount && c%jamoTCount == 0
}
// decomposeHangul writes the decomposed Hangul to buf and returns the number
// of bytes written. len(buf) should be at least 9.
func decomposeHangul(buf []byte, r rune) int {
const JamoUTF8Len = 3
r -= hangulBase
x := r % jamoTCount
r /= jamoTCount
utf8.EncodeRune(buf, jamoLBase+r/jamoVCount)
utf8.EncodeRune(buf[JamoUTF8Len:], jamoVBase+r%jamoVCount)
if x != 0 {
utf8.EncodeRune(buf[2*JamoUTF8Len:], jamoTBase+x)
return 3 * JamoUTF8Len
}
return 2 * JamoUTF8Len
}
// decomposeHangul algorithmically decomposes a Hangul rune into
// its Jamo components.
// See https://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
func (rb *reorderBuffer) decomposeHangul(r rune) {
r -= hangulBase
x := r % jamoTCount
r /= jamoTCount
rb.appendRune(jamoLBase + r/jamoVCount)
rb.appendRune(jamoVBase + r%jamoVCount)
if x != 0 {
rb.appendRune(jamoTBase + x)
}
}
// combineHangul algorithmically combines Jamo character components into Hangul.
// See https://unicode.org/reports/tr15/#Hangul for details on combining Hangul.
func (rb *reorderBuffer) combineHangul(s, i, k int) {
b := rb.rune[:]
bn := rb.nrune
for ; i < bn; i++ {
cccB := b[k-1].ccc
cccC := b[i].ccc
if cccB == 0 {
s = k - 1
}
if s != k-1 && cccB >= cccC {
// b[i] is blocked by greater-equal cccX below it
b[k] = b[i]
k++
} else {
l := rb.runeAt(s) // also used to compare to hangulBase
v := rb.runeAt(i) // also used to compare to jamoT
switch {
case jamoLBase <= l && l < jamoLEnd &&
jamoVBase <= v && v < jamoVEnd:
// 11xx plus 116x to LV
rb.assignRune(s, hangulBase+
(l-jamoLBase)*jamoVTCount+(v-jamoVBase)*jamoTCount)
case hangulBase <= l && l < hangulEnd &&
jamoTBase < v && v < jamoTEnd &&
((l-hangulBase)%jamoTCount) == 0:
// ACxx plus 11Ax to LVT
rb.assignRune(s, l+v-jamoTBase)
default:
b[k] = b[i]
k++
}
}
}
rb.nrune = k
}
// compose recombines the runes in the buffer.
// It should only be used to recompose a single segment, as it will not
// handle alternations between Hangul and non-Hangul characters correctly.
func (rb *reorderBuffer) compose() {
// Lazily load the map used by the combine func below, but do
// it outside of the loop.
recompMapOnce.Do(buildRecompMap)
// UAX #15, section X5 , including Corrigendum #5
// "In any character sequence beginning with starter S, a character C is
// blocked from S if and only if there is some character B between S
// and C, and either B is a starter or it has the same or higher
// combining class as C."
bn := rb.nrune
if bn == 0 {
return
}
k := 1
b := rb.rune[:]
for s, i := 0, 1; i < bn; i++ {
if isJamoVT(rb.bytesAt(i)) {
// Redo from start in Hangul mode. Necessary to support
// U+320E..U+321E in NFKC mode.
rb.combineHangul(s, i, k)
return
}
ii := b[i]
// We can only use combineForward as a filter if we later
// get the info for the combined character. This is more
// expensive than using the filter. Using combinesBackward()
// is safe.
if ii.combinesBackward() {
cccB := b[k-1].ccc
cccC := ii.ccc
blocked := false // b[i] blocked by starter or greater or equal CCC?
if cccB == 0 {
s = k - 1
} else {
blocked = s != k-1 && cccB >= cccC
}
if !blocked {
combined := combine(rb.runeAt(s), rb.runeAt(i))
if combined != 0 {
rb.assignRune(s, combined)
continue
}
}
}
b[k] = b[i]
k++
}
rb.nrune = k
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import "encoding/binary"
// This file contains Form-specific logic and wrappers for data in tables.go.
// Rune info is stored in a separate trie per composing form. A composing form
// and its corresponding decomposing form share the same trie. Each trie maps
// a rune to a uint16. The values take two forms. For v >= 0x8000:
// bits
// 15: 1 (inverse of NFD_QC bit of qcInfo)
// 13..7: qcInfo (see below). isYesD is always true (no decompostion).
// 6..0: ccc (compressed CCC value).
// For v < 0x8000, the respective rune has a decomposition and v is an index
// into a byte array of UTF-8 decomposition sequences and additional info and
// has the form:
// <header> <decomp_byte>* [<tccc> [<lccc>]]
// The header contains the number of bytes in the decomposition (excluding this
// length byte). The two most significant bits of this length byte correspond
// to bit 5 and 4 of qcInfo (see below). The byte sequence itself starts at v+1.
// The byte sequence is followed by a trailing and leading CCC if the values
// for these are not zero. The value of v determines which ccc are appended
// to the sequences. For v < firstCCC, there are none, for v >= firstCCC,
// the sequence is followed by a trailing ccc, and for v >= firstLeadingCC
// there is an additional leading ccc. The value of tccc itself is the
// trailing CCC shifted left 2 bits. The two least-significant bits of tccc
// are the number of trailing non-starters.
const (
qcInfoMask = 0x3F // to clear all but the relevant bits in a qcInfo
headerLenMask = 0x3F // extract the length value from the header byte
headerFlagsMask = 0xC0 // extract the qcInfo bits from the header byte
)
// Properties provides access to normalization properties of a rune.
type Properties struct {
pos uint8 // start position in reorderBuffer; used in composition.go
size uint8 // length of UTF-8 encoding of this rune
ccc uint8 // leading canonical combining class (ccc if not decomposition)
tccc uint8 // trailing canonical combining class (ccc if not decomposition)
nLead uint8 // number of leading non-starters.
flags qcInfo // quick check flags
index uint16
}
// functions dispatchable per form
type lookupFunc func(b input, i int) Properties
// formInfo holds Form-specific functions and tables.
type formInfo struct {
form Form
composing, compatibility bool // form type
info lookupFunc
nextMain iterFunc
}
var formTable = []*formInfo{{
form: NFC,
composing: true,
compatibility: false,
info: lookupInfoNFC,
nextMain: nextComposed,
}, {
form: NFD,
composing: false,
compatibility: false,
info: lookupInfoNFC,
nextMain: nextDecomposed,
}, {
form: NFKC,
composing: true,
compatibility: true,
info: lookupInfoNFKC,
nextMain: nextComposed,
}, {
form: NFKD,
composing: false,
compatibility: true,
info: lookupInfoNFKC,
nextMain: nextDecomposed,
}}
// We do not distinguish between boundaries for NFC, NFD, etc. to avoid
// unexpected behavior for the user. For example, in NFD, there is a boundary
// after 'a'. However, 'a' might combine with modifiers, so from the application's
// perspective it is not a good boundary. We will therefore always use the
// boundaries for the combining variants.
// BoundaryBefore returns true if this rune starts a new segment and
// cannot combine with any rune on the left.
func (p Properties) BoundaryBefore() bool {
if p.ccc == 0 && !p.combinesBackward() {
return true
}
// We assume that the CCC of the first character in a decomposition
// is always non-zero if different from info.ccc and that we can return
// false at this point. This is verified by maketables.
return false
}
// BoundaryAfter returns true if runes cannot combine with or otherwise
// interact with this or previous runes.
func (p Properties) BoundaryAfter() bool {
// TODO: loosen these conditions.
return p.isInert()
}
// We pack quick check data in 4 bits:
// 5: Combines forward (0 == false, 1 == true)
// 4..3: NFC_QC Yes(00), No (10), or Maybe (11)
// 2: NFD_QC Yes (0) or No (1). No also means there is a decomposition.
// 1..0: Number of trailing non-starters.
//
// When all 4 bits are zero, the character is inert, meaning it is never
// influenced by normalization.
type qcInfo uint8
func (p Properties) isYesC() bool { return p.flags&0x10 == 0 }
func (p Properties) isYesD() bool { return p.flags&0x4 == 0 }
func (p Properties) combinesForward() bool { return p.flags&0x20 != 0 }
func (p Properties) combinesBackward() bool { return p.flags&0x8 != 0 } // == isMaybe
func (p Properties) hasDecomposition() bool { return p.flags&0x4 != 0 } // == isNoD
func (p Properties) isInert() bool {
return p.flags&qcInfoMask == 0 && p.ccc == 0
}
func (p Properties) multiSegment() bool {
return p.index >= firstMulti && p.index < endMulti
}
func (p Properties) nLeadingNonStarters() uint8 {
return p.nLead
}
func (p Properties) nTrailingNonStarters() uint8 {
return uint8(p.flags & 0x03)
}
// Decomposition returns the decomposition for the underlying rune
// or nil if there is none.
func (p Properties) Decomposition() []byte {
// TODO: create the decomposition for Hangul?
if p.index == 0 {
return nil
}
i := p.index
n := decomps[i] & headerLenMask
i++
return decomps[i : i+uint16(n)]
}
// Size returns the length of UTF-8 encoding of the rune.
func (p Properties) Size() int {
return int(p.size)
}
// CCC returns the canonical combining class of the underlying rune.
func (p Properties) CCC() uint8 {
if p.index >= firstCCCZeroExcept {
return 0
}
return ccc[p.ccc]
}
// LeadCCC returns the CCC of the first rune in the decomposition.
// If there is no decomposition, LeadCCC equals CCC.
func (p Properties) LeadCCC() uint8 {
return ccc[p.ccc]
}
// TrailCCC returns the CCC of the last rune in the decomposition.
// If there is no decomposition, TrailCCC equals CCC.
func (p Properties) TrailCCC() uint8 {
return ccc[p.tccc]
}
func buildRecompMap() {
recompMap = make(map[uint32]rune, len(recompMapPacked)/8)
var buf [8]byte
for i := 0; i < len(recompMapPacked); i += 8 {
copy(buf[:], recompMapPacked[i:i+8])
key := binary.BigEndian.Uint32(buf[:4])
val := binary.BigEndian.Uint32(buf[4:])
recompMap[key] = rune(val)
}
}
// Recomposition
// We use 32-bit keys instead of 64-bit for the two codepoint keys.
// This clips off the bits of three entries, but we know this will not
// result in a collision. In the unlikely event that changes to
// UnicodeData.txt introduce collisions, the compiler will catch it.
// Note that the recomposition map for NFC and NFKC are identical.
// combine returns the combined rune or 0 if it doesn't exist.
//
// The caller is responsible for calling
// recompMapOnce.Do(buildRecompMap) sometime before this is called.
func combine(a, b rune) rune {
key := uint32(uint16(a))<<16 + uint32(uint16(b))
if recompMap == nil {
panic("caller error") // see func comment
}
return recompMap[key]
}
func lookupInfoNFC(b input, i int) Properties {
v, sz := b.charinfoNFC(i)
return compInfo(v, sz)
}
func lookupInfoNFKC(b input, i int) Properties {
v, sz := b.charinfoNFKC(i)
return compInfo(v, sz)
}
// Properties returns properties for the first rune in s.
func (f Form) Properties(s []byte) Properties {
if f == NFC || f == NFD {
return compInfo(nfcData.lookup(s))
}
return compInfo(nfkcData.lookup(s))
}
// PropertiesString returns properties for the first rune in s.
func (f Form) PropertiesString(s string) Properties {
if f == NFC || f == NFD {
return compInfo(nfcData.lookupString(s))
}
return compInfo(nfkcData.lookupString(s))
}
// compInfo converts the information contained in v and sz
// to a Properties. See the comment at the top of the file
// for more information on the format.
func compInfo(v uint16, sz int) Properties {
if v == 0 {
return Properties{size: uint8(sz)}
} else if v >= 0x8000 {
p := Properties{
size: uint8(sz),
ccc: uint8(v),
tccc: uint8(v),
flags: qcInfo(v >> 8),
}
if p.ccc > 0 || p.combinesBackward() {
p.nLead = uint8(p.flags & 0x3)
}
return p
}
// has decomposition
h := decomps[v]
f := (qcInfo(h&headerFlagsMask) >> 2) | 0x4
p := Properties{size: uint8(sz), flags: f, index: v}
if v >= firstCCC {
v += uint16(h&headerLenMask) + 1
c := decomps[v]
p.tccc = c >> 2
p.flags |= qcInfo(c & 0x3)
if v >= firstLeadingCCC {
p.nLead = c & 0x3
if v >= firstStarterWithNLead {
// We were tricked. Remove the decomposition.
p.flags &= 0x03
p.index = 0
return p
}
p.ccc = decomps[v+1]
}
}
return p
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import "unicode/utf8"
type input struct {
str string
bytes []byte
}
func inputBytes(str []byte) input {
return input{bytes: str}
}
func inputString(str string) input {
return input{str: str}
}
func (in *input) setBytes(str []byte) {
in.str = ""
in.bytes = str
}
func (in *input) setString(str string) {
in.str = str
in.bytes = nil
}
func (in *input) _byte(p int) byte {
if in.bytes == nil {
return in.str[p]
}
return in.bytes[p]
}
func (in *input) skipASCII(p, max int) int {
if in.bytes == nil {
for ; p < max && in.str[p] < utf8.RuneSelf; p++ {
}
} else {
for ; p < max && in.bytes[p] < utf8.RuneSelf; p++ {
}
}
return p
}
func (in *input) skipContinuationBytes(p int) int {
if in.bytes == nil {
for ; p < len(in.str) && !utf8.RuneStart(in.str[p]); p++ {
}
} else {
for ; p < len(in.bytes) && !utf8.RuneStart(in.bytes[p]); p++ {
}
}
return p
}
func (in *input) appendSlice(buf []byte, b, e int) []byte {
if in.bytes != nil {
return append(buf, in.bytes[b:e]...)
}
for i := b; i < e; i++ {
buf = append(buf, in.str[i])
}
return buf
}
func (in *input) copySlice(buf []byte, b, e int) int {
if in.bytes == nil {
return copy(buf, in.str[b:e])
}
return copy(buf, in.bytes[b:e])
}
func (in *input) charinfoNFC(p int) (uint16, int) {
if in.bytes == nil {
return nfcData.lookupString(in.str[p:])
}
return nfcData.lookup(in.bytes[p:])
}
func (in *input) charinfoNFKC(p int) (uint16, int) {
if in.bytes == nil {
return nfkcData.lookupString(in.str[p:])
}
return nfkcData.lookup(in.bytes[p:])
}
func (in *input) hangul(p int) (r rune) {
var size int
if in.bytes == nil {
if !isHangulString(in.str[p:]) {
return 0
}
r, size = utf8.DecodeRuneInString(in.str[p:])
} else {
if !isHangul(in.bytes[p:]) {
return 0
}
r, size = utf8.DecodeRune(in.bytes[p:])
}
if size != hangulUTF8Size {
return 0
}
return r
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import (
"fmt"
"unicode/utf8"
)
// MaxSegmentSize is the maximum size of a byte buffer needed to consider any
// sequence of starter and non-starter runes for the purpose of normalization.
const MaxSegmentSize = maxByteBufferSize
// An Iter iterates over a string or byte slice, while normalizing it
// to a given Form.
type Iter struct {
rb reorderBuffer
buf [maxByteBufferSize]byte
info Properties // first character saved from previous iteration
next iterFunc // implementation of next depends on form
asciiF iterFunc
p int // current position in input source
multiSeg []byte // remainder of multi-segment decomposition
}
type iterFunc func(*Iter) []byte
// Init initializes i to iterate over src after normalizing it to Form f.
func (i *Iter) Init(f Form, src []byte) {
i.p = 0
if len(src) == 0 {
i.setDone()
i.rb.nsrc = 0
return
}
i.multiSeg = nil
i.rb.init(f, src)
i.next = i.rb.f.nextMain
i.asciiF = nextASCIIBytes
i.info = i.rb.f.info(i.rb.src, i.p)
i.rb.ss.first(i.info)
}
// InitString initializes i to iterate over src after normalizing it to Form f.
func (i *Iter) InitString(f Form, src string) {
i.p = 0
if len(src) == 0 {
i.setDone()
i.rb.nsrc = 0
return
}
i.multiSeg = nil
i.rb.initString(f, src)
i.next = i.rb.f.nextMain
i.asciiF = nextASCIIString
i.info = i.rb.f.info(i.rb.src, i.p)
i.rb.ss.first(i.info)
}
// Seek sets the segment to be returned by the next call to Next to start
// at position p. It is the responsibility of the caller to set p to the
// start of a segment.
func (i *Iter) Seek(offset int64, whence int) (int64, error) {
var abs int64
switch whence {
case 0:
abs = offset
case 1:
abs = int64(i.p) + offset
case 2:
abs = int64(i.rb.nsrc) + offset
default:
return 0, fmt.Errorf("norm: invalid whence")
}
if abs < 0 {
return 0, fmt.Errorf("norm: negative position")
}
if int(abs) >= i.rb.nsrc {
i.setDone()
return int64(i.p), nil
}
i.p = int(abs)
i.multiSeg = nil
i.next = i.rb.f.nextMain
i.info = i.rb.f.info(i.rb.src, i.p)
i.rb.ss.first(i.info)
return abs, nil
}
// returnSlice returns a slice of the underlying input type as a byte slice.
// If the underlying is of type []byte, it will simply return a slice.
// If the underlying is of type string, it will copy the slice to the buffer
// and return that.
func (i *Iter) returnSlice(a, b int) []byte {
if i.rb.src.bytes == nil {
return i.buf[:copy(i.buf[:], i.rb.src.str[a:b])]
}
return i.rb.src.bytes[a:b]
}
// Pos returns the byte position at which the next call to Next will commence processing.
func (i *Iter) Pos() int {
return i.p
}
func (i *Iter) setDone() {
i.next = nextDone
i.p = i.rb.nsrc
}
// Done returns true if there is no more input to process.
func (i *Iter) Done() bool {
return i.p >= i.rb.nsrc
}
// Next returns f(i.input[i.Pos():n]), where n is a boundary of i.input.
// For any input a and b for which f(a) == f(b), subsequent calls
// to Next will return the same segments.
// Modifying runes are grouped together with the preceding starter, if such a starter exists.
// Although not guaranteed, n will typically be the smallest possible n.
func (i *Iter) Next() []byte {
return i.next(i)
}
func nextASCIIBytes(i *Iter) []byte {
p := i.p + 1
if p >= i.rb.nsrc {
p0 := i.p
i.setDone()
return i.rb.src.bytes[p0:p]
}
if i.rb.src.bytes[p] < utf8.RuneSelf {
p0 := i.p
i.p = p
return i.rb.src.bytes[p0:p]
}
i.info = i.rb.f.info(i.rb.src, i.p)
i.next = i.rb.f.nextMain
return i.next(i)
}
func nextASCIIString(i *Iter) []byte {
p := i.p + 1
if p >= i.rb.nsrc {
i.buf[0] = i.rb.src.str[i.p]
i.setDone()
return i.buf[:1]
}
if i.rb.src.str[p] < utf8.RuneSelf {
i.buf[0] = i.rb.src.str[i.p]
i.p = p
return i.buf[:1]
}
i.info = i.rb.f.info(i.rb.src, i.p)
i.next = i.rb.f.nextMain
return i.next(i)
}
func nextHangul(i *Iter) []byte {
p := i.p
next := p + hangulUTF8Size
if next >= i.rb.nsrc {
i.setDone()
} else if i.rb.src.hangul(next) == 0 {
i.rb.ss.next(i.info)
i.info = i.rb.f.info(i.rb.src, i.p)
i.next = i.rb.f.nextMain
return i.next(i)
}
i.p = next
return i.buf[:decomposeHangul(i.buf[:], i.rb.src.hangul(p))]
}
func nextDone(i *Iter) []byte {
return nil
}
// nextMulti is used for iterating over multi-segment decompositions
// for decomposing normal forms.
func nextMulti(i *Iter) []byte {
j := 0
d := i.multiSeg
// skip first rune
for j = 1; j < len(d) && !utf8.RuneStart(d[j]); j++ {
}
for j < len(d) {
info := i.rb.f.info(input{bytes: d}, j)
if info.BoundaryBefore() {
i.multiSeg = d[j:]
return d[:j]
}
j += int(info.size)
}
// treat last segment as normal decomposition
i.next = i.rb.f.nextMain
return i.next(i)
}
// nextMultiNorm is used for iterating over multi-segment decompositions
// for composing normal forms.
func nextMultiNorm(i *Iter) []byte {
j := 0
d := i.multiSeg
for j < len(d) {
info := i.rb.f.info(input{bytes: d}, j)
if info.BoundaryBefore() {
i.rb.compose()
seg := i.buf[:i.rb.flushCopy(i.buf[:])]
i.rb.insertUnsafe(input{bytes: d}, j, info)
i.multiSeg = d[j+int(info.size):]
return seg
}
i.rb.insertUnsafe(input{bytes: d}, j, info)
j += int(info.size)
}
i.multiSeg = nil
i.next = nextComposed
return doNormComposed(i)
}
// nextDecomposed is the implementation of Next for forms NFD and NFKD.
func nextDecomposed(i *Iter) (next []byte) {
outp := 0
inCopyStart, outCopyStart := i.p, 0
for {
if sz := int(i.info.size); sz <= 1 {
i.rb.ss = 0
p := i.p
i.p++ // ASCII or illegal byte. Either way, advance by 1.
if i.p >= i.rb.nsrc {
i.setDone()
return i.returnSlice(p, i.p)
} else if i.rb.src._byte(i.p) < utf8.RuneSelf {
i.next = i.asciiF
return i.returnSlice(p, i.p)
}
outp++
} else if d := i.info.Decomposition(); d != nil {
// Note: If leading CCC != 0, then len(d) == 2 and last is also non-zero.
// Case 1: there is a leftover to copy. In this case the decomposition
// must begin with a modifier and should always be appended.
// Case 2: no leftover. Simply return d if followed by a ccc == 0 value.
p := outp + len(d)
if outp > 0 {
i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
// TODO: this condition should not be possible, but we leave it
// in for defensive purposes.
if p > len(i.buf) {
return i.buf[:outp]
}
} else if i.info.multiSegment() {
// outp must be 0 as multi-segment decompositions always
// start a new segment.
if i.multiSeg == nil {
i.multiSeg = d
i.next = nextMulti
return nextMulti(i)
}
// We are in the last segment. Treat as normal decomposition.
d = i.multiSeg
i.multiSeg = nil
p = len(d)
}
prevCC := i.info.tccc
if i.p += sz; i.p >= i.rb.nsrc {
i.setDone()
i.info = Properties{} // Force BoundaryBefore to succeed.
} else {
i.info = i.rb.f.info(i.rb.src, i.p)
}
switch i.rb.ss.next(i.info) {
case ssOverflow:
i.next = nextCGJDecompose
fallthrough
case ssStarter:
if outp > 0 {
copy(i.buf[outp:], d)
return i.buf[:p]
}
return d
}
copy(i.buf[outp:], d)
outp = p
inCopyStart, outCopyStart = i.p, outp
if i.info.ccc < prevCC {
goto doNorm
}
continue
} else if r := i.rb.src.hangul(i.p); r != 0 {
outp = decomposeHangul(i.buf[:], r)
i.p += hangulUTF8Size
inCopyStart, outCopyStart = i.p, outp
if i.p >= i.rb.nsrc {
i.setDone()
break
} else if i.rb.src.hangul(i.p) != 0 {
i.next = nextHangul
return i.buf[:outp]
}
} else {
p := outp + sz
if p > len(i.buf) {
break
}
outp = p
i.p += sz
}
if i.p >= i.rb.nsrc {
i.setDone()
break
}
prevCC := i.info.tccc
i.info = i.rb.f.info(i.rb.src, i.p)
if v := i.rb.ss.next(i.info); v == ssStarter {
break
} else if v == ssOverflow {
i.next = nextCGJDecompose
break
}
if i.info.ccc < prevCC {
goto doNorm
}
}
if outCopyStart == 0 {
return i.returnSlice(inCopyStart, i.p)
} else if inCopyStart < i.p {
i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
}
return i.buf[:outp]
doNorm:
// Insert what we have decomposed so far in the reorderBuffer.
// As we will only reorder, there will always be enough room.
i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
i.rb.insertDecomposed(i.buf[0:outp])
return doNormDecomposed(i)
}
func doNormDecomposed(i *Iter) []byte {
for {
i.rb.insertUnsafe(i.rb.src, i.p, i.info)
if i.p += int(i.info.size); i.p >= i.rb.nsrc {
i.setDone()
break
}
i.info = i.rb.f.info(i.rb.src, i.p)
if i.info.ccc == 0 {
break
}
if s := i.rb.ss.next(i.info); s == ssOverflow {
i.next = nextCGJDecompose
break
}
}
// new segment or too many combining characters: exit normalization
return i.buf[:i.rb.flushCopy(i.buf[:])]
}
func nextCGJDecompose(i *Iter) []byte {
i.rb.ss = 0
i.rb.insertCGJ()
i.next = nextDecomposed
i.rb.ss.first(i.info)
buf := doNormDecomposed(i)
return buf
}
// nextComposed is the implementation of Next for forms NFC and NFKC.
func nextComposed(i *Iter) []byte {
outp, startp := 0, i.p
var prevCC uint8
for {
if !i.info.isYesC() {
goto doNorm
}
prevCC = i.info.tccc
sz := int(i.info.size)
if sz == 0 {
sz = 1 // illegal rune: copy byte-by-byte
}
p := outp + sz
if p > len(i.buf) {
break
}
outp = p
i.p += sz
if i.p >= i.rb.nsrc {
i.setDone()
break
} else if i.rb.src._byte(i.p) < utf8.RuneSelf {
i.rb.ss = 0
i.next = i.asciiF
break
}
i.info = i.rb.f.info(i.rb.src, i.p)
if v := i.rb.ss.next(i.info); v == ssStarter {
break
} else if v == ssOverflow {
i.next = nextCGJCompose
break
}
if i.info.ccc < prevCC {
goto doNorm
}
}
return i.returnSlice(startp, i.p)
doNorm:
// reset to start position
i.p = startp
i.info = i.rb.f.info(i.rb.src, i.p)
i.rb.ss.first(i.info)
if i.info.multiSegment() {
d := i.info.Decomposition()
info := i.rb.f.info(input{bytes: d}, 0)
i.rb.insertUnsafe(input{bytes: d}, 0, info)
i.multiSeg = d[int(info.size):]
i.next = nextMultiNorm
return nextMultiNorm(i)
}
i.rb.ss.first(i.info)
i.rb.insertUnsafe(i.rb.src, i.p, i.info)
return doNormComposed(i)
}
func doNormComposed(i *Iter) []byte {
// First rune should already be inserted.
for {
if i.p += int(i.info.size); i.p >= i.rb.nsrc {
i.setDone()
break
}
i.info = i.rb.f.info(i.rb.src, i.p)
if s := i.rb.ss.next(i.info); s == ssStarter {
break
} else if s == ssOverflow {
i.next = nextCGJCompose
break
}
i.rb.insertUnsafe(i.rb.src, i.p, i.info)
}
i.rb.compose()
seg := i.buf[:i.rb.flushCopy(i.buf[:])]
return seg
}
func nextCGJCompose(i *Iter) []byte {
i.rb.ss = 0 // instead of first
i.rb.insertCGJ()
i.next = nextComposed
// Note that we treat any rune with nLeadingNonStarters > 0 as a non-starter,
// even if they are not. This is particularly dubious for U+FF9E and UFF9A.
// If we ever change that, insert a check here.
i.rb.ss.first(i.info)
i.rb.insertUnsafe(i.rb.src, i.p, i.info)
return doNormComposed(i)
}

609
vendor/golang.org/x/text/unicode/norm/normalize.go generated vendored Normal file
View File

@ -0,0 +1,609 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Note: the file data_test.go that is generated should not be checked in.
//go:generate go run maketables.go triegen.go
//go:generate go test -tags test
// Package norm contains types and functions for normalizing Unicode strings.
package norm // import "golang.org/x/text/unicode/norm"
import (
"unicode/utf8"
"golang.org/x/text/transform"
)
// A Form denotes a canonical representation of Unicode code points.
// The Unicode-defined normalization and equivalence forms are:
//
// NFC Unicode Normalization Form C
// NFD Unicode Normalization Form D
// NFKC Unicode Normalization Form KC
// NFKD Unicode Normalization Form KD
//
// For a Form f, this documentation uses the notation f(x) to mean
// the bytes or string x converted to the given form.
// A position n in x is called a boundary if conversion to the form can
// proceed independently on both sides:
// f(x) == append(f(x[0:n]), f(x[n:])...)
//
// References: https://unicode.org/reports/tr15/ and
// https://unicode.org/notes/tn5/.
type Form int
const (
NFC Form = iota
NFD
NFKC
NFKD
)
// Bytes returns f(b). May return b if f(b) = b.
func (f Form) Bytes(b []byte) []byte {
src := inputBytes(b)
ft := formTable[f]
n, ok := ft.quickSpan(src, 0, len(b), true)
if ok {
return b
}
out := make([]byte, n, len(b))
copy(out, b[0:n])
rb := reorderBuffer{f: *ft, src: src, nsrc: len(b), out: out, flushF: appendFlush}
return doAppendInner(&rb, n)
}
// String returns f(s).
func (f Form) String(s string) string {
src := inputString(s)
ft := formTable[f]
n, ok := ft.quickSpan(src, 0, len(s), true)
if ok {
return s
}
out := make([]byte, n, len(s))
copy(out, s[0:n])
rb := reorderBuffer{f: *ft, src: src, nsrc: len(s), out: out, flushF: appendFlush}
return string(doAppendInner(&rb, n))
}
// IsNormal returns true if b == f(b).
func (f Form) IsNormal(b []byte) bool {
src := inputBytes(b)
ft := formTable[f]
bp, ok := ft.quickSpan(src, 0, len(b), true)
if ok {
return true
}
rb := reorderBuffer{f: *ft, src: src, nsrc: len(b)}
rb.setFlusher(nil, cmpNormalBytes)
for bp < len(b) {
rb.out = b[bp:]
if bp = decomposeSegment(&rb, bp, true); bp < 0 {
return false
}
bp, _ = rb.f.quickSpan(rb.src, bp, len(b), true)
}
return true
}
func cmpNormalBytes(rb *reorderBuffer) bool {
b := rb.out
for i := 0; i < rb.nrune; i++ {
info := rb.rune[i]
if int(info.size) > len(b) {
return false
}
p := info.pos
pe := p + info.size
for ; p < pe; p++ {
if b[0] != rb.byte[p] {
return false
}
b = b[1:]
}
}
return true
}
// IsNormalString returns true if s == f(s).
func (f Form) IsNormalString(s string) bool {
src := inputString(s)
ft := formTable[f]
bp, ok := ft.quickSpan(src, 0, len(s), true)
if ok {
return true
}
rb := reorderBuffer{f: *ft, src: src, nsrc: len(s)}
rb.setFlusher(nil, func(rb *reorderBuffer) bool {
for i := 0; i < rb.nrune; i++ {
info := rb.rune[i]
if bp+int(info.size) > len(s) {
return false
}
p := info.pos
pe := p + info.size
for ; p < pe; p++ {
if s[bp] != rb.byte[p] {
return false
}
bp++
}
}
return true
})
for bp < len(s) {
if bp = decomposeSegment(&rb, bp, true); bp < 0 {
return false
}
bp, _ = rb.f.quickSpan(rb.src, bp, len(s), true)
}
return true
}
// patchTail fixes a case where a rune may be incorrectly normalized
// if it is followed by illegal continuation bytes. It returns the
// patched buffer and whether the decomposition is still in progress.
func patchTail(rb *reorderBuffer) bool {
info, p := lastRuneStart(&rb.f, rb.out)
if p == -1 || info.size == 0 {
return true
}
end := p + int(info.size)
extra := len(rb.out) - end
if extra > 0 {
// Potentially allocating memory. However, this only
// happens with ill-formed UTF-8.
x := make([]byte, 0)
x = append(x, rb.out[len(rb.out)-extra:]...)
rb.out = rb.out[:end]
decomposeToLastBoundary(rb)
rb.doFlush()
rb.out = append(rb.out, x...)
return false
}
buf := rb.out[p:]
rb.out = rb.out[:p]
decomposeToLastBoundary(rb)
if s := rb.ss.next(info); s == ssStarter {
rb.doFlush()
rb.ss.first(info)
} else if s == ssOverflow {
rb.doFlush()
rb.insertCGJ()
rb.ss = 0
}
rb.insertUnsafe(inputBytes(buf), 0, info)
return true
}
func appendQuick(rb *reorderBuffer, i int) int {
if rb.nsrc == i {
return i
}
end, _ := rb.f.quickSpan(rb.src, i, rb.nsrc, true)
rb.out = rb.src.appendSlice(rb.out, i, end)
return end
}
// Append returns f(append(out, b...)).
// The buffer out must be nil, empty, or equal to f(out).
func (f Form) Append(out []byte, src ...byte) []byte {
return f.doAppend(out, inputBytes(src), len(src))
}
func (f Form) doAppend(out []byte, src input, n int) []byte {
if n == 0 {
return out
}
ft := formTable[f]
// Attempt to do a quickSpan first so we can avoid initializing the reorderBuffer.
if len(out) == 0 {
p, _ := ft.quickSpan(src, 0, n, true)
out = src.appendSlice(out, 0, p)
if p == n {
return out
}
rb := reorderBuffer{f: *ft, src: src, nsrc: n, out: out, flushF: appendFlush}
return doAppendInner(&rb, p)
}
rb := reorderBuffer{f: *ft, src: src, nsrc: n}
return doAppend(&rb, out, 0)
}
func doAppend(rb *reorderBuffer, out []byte, p int) []byte {
rb.setFlusher(out, appendFlush)
src, n := rb.src, rb.nsrc
doMerge := len(out) > 0
if q := src.skipContinuationBytes(p); q > p {
// Move leading non-starters to destination.
rb.out = src.appendSlice(rb.out, p, q)
p = q
doMerge = patchTail(rb)
}
fd := &rb.f
if doMerge {
var info Properties
if p < n {
info = fd.info(src, p)
if !info.BoundaryBefore() || info.nLeadingNonStarters() > 0 {
if p == 0 {
decomposeToLastBoundary(rb)
}
p = decomposeSegment(rb, p, true)
}
}
if info.size == 0 {
rb.doFlush()
// Append incomplete UTF-8 encoding.
return src.appendSlice(rb.out, p, n)
}
if rb.nrune > 0 {
return doAppendInner(rb, p)
}
}
p = appendQuick(rb, p)
return doAppendInner(rb, p)
}
func doAppendInner(rb *reorderBuffer, p int) []byte {
for n := rb.nsrc; p < n; {
p = decomposeSegment(rb, p, true)
p = appendQuick(rb, p)
}
return rb.out
}
// AppendString returns f(append(out, []byte(s))).
// The buffer out must be nil, empty, or equal to f(out).
func (f Form) AppendString(out []byte, src string) []byte {
return f.doAppend(out, inputString(src), len(src))
}
// QuickSpan returns a boundary n such that b[0:n] == f(b[0:n]).
// It is not guaranteed to return the largest such n.
func (f Form) QuickSpan(b []byte) int {
n, _ := formTable[f].quickSpan(inputBytes(b), 0, len(b), true)
return n
}
// Span implements transform.SpanningTransformer. It returns a boundary n such
// that b[0:n] == f(b[0:n]). It is not guaranteed to return the largest such n.
func (f Form) Span(b []byte, atEOF bool) (n int, err error) {
n, ok := formTable[f].quickSpan(inputBytes(b), 0, len(b), atEOF)
if n < len(b) {
if !ok {
err = transform.ErrEndOfSpan
} else {
err = transform.ErrShortSrc
}
}
return n, err
}
// SpanString returns a boundary n such that s[0:n] == f(s[0:n]).
// It is not guaranteed to return the largest such n.
func (f Form) SpanString(s string, atEOF bool) (n int, err error) {
n, ok := formTable[f].quickSpan(inputString(s), 0, len(s), atEOF)
if n < len(s) {
if !ok {
err = transform.ErrEndOfSpan
} else {
err = transform.ErrShortSrc
}
}
return n, err
}
// quickSpan returns a boundary n such that src[0:n] == f(src[0:n]) and
// whether any non-normalized parts were found. If atEOF is false, n will
// not point past the last segment if this segment might be become
// non-normalized by appending other runes.
func (f *formInfo) quickSpan(src input, i, end int, atEOF bool) (n int, ok bool) {
var lastCC uint8
ss := streamSafe(0)
lastSegStart := i
for n = end; i < n; {
if j := src.skipASCII(i, n); i != j {
i = j
lastSegStart = i - 1
lastCC = 0
ss = 0
continue
}
info := f.info(src, i)
if info.size == 0 {
if atEOF {
// include incomplete runes
return n, true
}
return lastSegStart, true
}
// This block needs to be before the next, because it is possible to
// have an overflow for runes that are starters (e.g. with U+FF9E).
switch ss.next(info) {
case ssStarter:
lastSegStart = i
case ssOverflow:
return lastSegStart, false
case ssSuccess:
if lastCC > info.ccc {
return lastSegStart, false
}
}
if f.composing {
if !info.isYesC() {
break
}
} else {
if !info.isYesD() {
break
}
}
lastCC = info.ccc
i += int(info.size)
}
if i == n {
if !atEOF {
n = lastSegStart
}
return n, true
}
return lastSegStart, false
}
// QuickSpanString returns a boundary n such that s[0:n] == f(s[0:n]).
// It is not guaranteed to return the largest such n.
func (f Form) QuickSpanString(s string) int {
n, _ := formTable[f].quickSpan(inputString(s), 0, len(s), true)
return n
}
// FirstBoundary returns the position i of the first boundary in b
// or -1 if b contains no boundary.
func (f Form) FirstBoundary(b []byte) int {
return f.firstBoundary(inputBytes(b), len(b))
}
func (f Form) firstBoundary(src input, nsrc int) int {
i := src.skipContinuationBytes(0)
if i >= nsrc {
return -1
}
fd := formTable[f]
ss := streamSafe(0)
// We should call ss.first here, but we can't as the first rune is
// skipped already. This means FirstBoundary can't really determine
// CGJ insertion points correctly. Luckily it doesn't have to.
for {
info := fd.info(src, i)
if info.size == 0 {
return -1
}
if s := ss.next(info); s != ssSuccess {
return i
}
i += int(info.size)
if i >= nsrc {
if !info.BoundaryAfter() && !ss.isMax() {
return -1
}
return nsrc
}
}
}
// FirstBoundaryInString returns the position i of the first boundary in s
// or -1 if s contains no boundary.
func (f Form) FirstBoundaryInString(s string) int {
return f.firstBoundary(inputString(s), len(s))
}
// NextBoundary reports the index of the boundary between the first and next
// segment in b or -1 if atEOF is false and there are not enough bytes to
// determine this boundary.
func (f Form) NextBoundary(b []byte, atEOF bool) int {
return f.nextBoundary(inputBytes(b), len(b), atEOF)
}
// NextBoundaryInString reports the index of the boundary between the first and
// next segment in b or -1 if atEOF is false and there are not enough bytes to
// determine this boundary.
func (f Form) NextBoundaryInString(s string, atEOF bool) int {
return f.nextBoundary(inputString(s), len(s), atEOF)
}
func (f Form) nextBoundary(src input, nsrc int, atEOF bool) int {
if nsrc == 0 {
if atEOF {
return 0
}
return -1
}
fd := formTable[f]
info := fd.info(src, 0)
if info.size == 0 {
if atEOF {
return 1
}
return -1
}
ss := streamSafe(0)
ss.first(info)
for i := int(info.size); i < nsrc; i += int(info.size) {
info = fd.info(src, i)
if info.size == 0 {
if atEOF {
return i
}
return -1
}
// TODO: Using streamSafe to determine the boundary isn't the same as
// using BoundaryBefore. Determine which should be used.
if s := ss.next(info); s != ssSuccess {
return i
}
}
if !atEOF && !info.BoundaryAfter() && !ss.isMax() {
return -1
}
return nsrc
}
// LastBoundary returns the position i of the last boundary in b
// or -1 if b contains no boundary.
func (f Form) LastBoundary(b []byte) int {
return lastBoundary(formTable[f], b)
}
func lastBoundary(fd *formInfo, b []byte) int {
i := len(b)
info, p := lastRuneStart(fd, b)
if p == -1 {
return -1
}
if info.size == 0 { // ends with incomplete rune
if p == 0 { // starts with incomplete rune
return -1
}
i = p
info, p = lastRuneStart(fd, b[:i])
if p == -1 { // incomplete UTF-8 encoding or non-starter bytes without a starter
return i
}
}
if p+int(info.size) != i { // trailing non-starter bytes: illegal UTF-8
return i
}
if info.BoundaryAfter() {
return i
}
ss := streamSafe(0)
v := ss.backwards(info)
for i = p; i >= 0 && v != ssStarter; i = p {
info, p = lastRuneStart(fd, b[:i])
if v = ss.backwards(info); v == ssOverflow {
break
}
if p+int(info.size) != i {
if p == -1 { // no boundary found
return -1
}
return i // boundary after an illegal UTF-8 encoding
}
}
return i
}
// decomposeSegment scans the first segment in src into rb. It inserts 0x034f
// (Grapheme Joiner) when it encounters a sequence of more than 30 non-starters
// and returns the number of bytes consumed from src or iShortDst or iShortSrc.
func decomposeSegment(rb *reorderBuffer, sp int, atEOF bool) int {
// Force one character to be consumed.
info := rb.f.info(rb.src, sp)
if info.size == 0 {
return 0
}
if s := rb.ss.next(info); s == ssStarter {
// TODO: this could be removed if we don't support merging.
if rb.nrune > 0 {
goto end
}
} else if s == ssOverflow {
rb.insertCGJ()
goto end
}
if err := rb.insertFlush(rb.src, sp, info); err != iSuccess {
return int(err)
}
for {
sp += int(info.size)
if sp >= rb.nsrc {
if !atEOF && !info.BoundaryAfter() {
return int(iShortSrc)
}
break
}
info = rb.f.info(rb.src, sp)
if info.size == 0 {
if !atEOF {
return int(iShortSrc)
}
break
}
if s := rb.ss.next(info); s == ssStarter {
break
} else if s == ssOverflow {
rb.insertCGJ()
break
}
if err := rb.insertFlush(rb.src, sp, info); err != iSuccess {
return int(err)
}
}
end:
if !rb.doFlush() {
return int(iShortDst)
}
return sp
}
// lastRuneStart returns the runeInfo and position of the last
// rune in buf or the zero runeInfo and -1 if no rune was found.
func lastRuneStart(fd *formInfo, buf []byte) (Properties, int) {
p := len(buf) - 1
for ; p >= 0 && !utf8.RuneStart(buf[p]); p-- {
}
if p < 0 {
return Properties{}, -1
}
return fd.info(inputBytes(buf), p), p
}
// decomposeToLastBoundary finds an open segment at the end of the buffer
// and scans it into rb. Returns the buffer minus the last segment.
func decomposeToLastBoundary(rb *reorderBuffer) {
fd := &rb.f
info, i := lastRuneStart(fd, rb.out)
if int(info.size) != len(rb.out)-i {
// illegal trailing continuation bytes
return
}
if info.BoundaryAfter() {
return
}
var add [maxNonStarters + 1]Properties // stores runeInfo in reverse order
padd := 0
ss := streamSafe(0)
p := len(rb.out)
for {
add[padd] = info
v := ss.backwards(info)
if v == ssOverflow {
// Note that if we have an overflow, it the string we are appending to
// is not correctly normalized. In this case the behavior is undefined.
break
}
padd++
p -= int(info.size)
if v == ssStarter || p < 0 {
break
}
info, i = lastRuneStart(fd, rb.out[:p])
if int(info.size) != p-i {
break
}
}
rb.ss = ss
// Copy bytes for insertion as we may need to overwrite rb.out.
var buf [maxBufferSize * utf8.UTFMax]byte
cp := buf[:copy(buf[:], rb.out[p:])]
rb.out = rb.out[:p]
for padd--; padd >= 0; padd-- {
info = add[padd]
rb.insertUnsafe(inputBytes(cp), 0, info)
cp = cp[info.size:]
}
}

125
vendor/golang.org/x/text/unicode/norm/readwriter.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import "io"
type normWriter struct {
rb reorderBuffer
w io.Writer
buf []byte
}
// Write implements the standard write interface. If the last characters are
// not at a normalization boundary, the bytes will be buffered for the next
// write. The remaining bytes will be written on close.
func (w *normWriter) Write(data []byte) (n int, err error) {
// Process data in pieces to keep w.buf size bounded.
const chunk = 4000
for len(data) > 0 {
// Normalize into w.buf.
m := len(data)
if m > chunk {
m = chunk
}
w.rb.src = inputBytes(data[:m])
w.rb.nsrc = m
w.buf = doAppend(&w.rb, w.buf, 0)
data = data[m:]
n += m
// Write out complete prefix, save remainder.
// Note that lastBoundary looks back at most 31 runes.
i := lastBoundary(&w.rb.f, w.buf)
if i == -1 {
i = 0
}
if i > 0 {
if _, err = w.w.Write(w.buf[:i]); err != nil {
break
}
bn := copy(w.buf, w.buf[i:])
w.buf = w.buf[:bn]
}
}
return n, err
}
// Close forces data that remains in the buffer to be written.
func (w *normWriter) Close() error {
if len(w.buf) > 0 {
_, err := w.w.Write(w.buf)
if err != nil {
return err
}
}
return nil
}
// Writer returns a new writer that implements Write(b)
// by writing f(b) to w. The returned writer may use an
// internal buffer to maintain state across Write calls.
// Calling its Close method writes any buffered data to w.
func (f Form) Writer(w io.Writer) io.WriteCloser {
wr := &normWriter{rb: reorderBuffer{}, w: w}
wr.rb.init(f, nil)
return wr
}
type normReader struct {
rb reorderBuffer
r io.Reader
inbuf []byte
outbuf []byte
bufStart int
lastBoundary int
err error
}
// Read implements the standard read interface.
func (r *normReader) Read(p []byte) (int, error) {
for {
if r.lastBoundary-r.bufStart > 0 {
n := copy(p, r.outbuf[r.bufStart:r.lastBoundary])
r.bufStart += n
if r.lastBoundary-r.bufStart > 0 {
return n, nil
}
return n, r.err
}
if r.err != nil {
return 0, r.err
}
outn := copy(r.outbuf, r.outbuf[r.lastBoundary:])
r.outbuf = r.outbuf[0:outn]
r.bufStart = 0
n, err := r.r.Read(r.inbuf)
r.rb.src = inputBytes(r.inbuf[0:n])
r.rb.nsrc, r.err = n, err
if n > 0 {
r.outbuf = doAppend(&r.rb, r.outbuf, 0)
}
if err == io.EOF {
r.lastBoundary = len(r.outbuf)
} else {
r.lastBoundary = lastBoundary(&r.rb.f, r.outbuf)
if r.lastBoundary == -1 {
r.lastBoundary = 0
}
}
}
}
// Reader returns a new reader that implements Read
// by reading data from r and returning f(data).
func (f Form) Reader(r io.Reader) io.Reader {
const chunk = 4000
buf := make([]byte, chunk)
rr := &normReader{rb: reorderBuffer{}, r: r, inbuf: buf}
rr.rb.init(f, buf)
return rr
}

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vendor/golang.org/x/text/unicode/norm/tables10.0.0.go generated vendored Normal file
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vendor/golang.org/x/text/unicode/norm/tables11.0.0.go generated vendored Normal file
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vendor/golang.org/x/text/unicode/norm/tables12.0.0.go generated vendored Normal file
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vendor/golang.org/x/text/unicode/norm/transform.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
import (
"unicode/utf8"
"golang.org/x/text/transform"
)
// Reset implements the Reset method of the transform.Transformer interface.
func (Form) Reset() {}
// Transform implements the Transform method of the transform.Transformer
// interface. It may need to write segments of up to MaxSegmentSize at once.
// Users should either catch ErrShortDst and allow dst to grow or have dst be at
// least of size MaxTransformChunkSize to be guaranteed of progress.
func (f Form) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
// Cap the maximum number of src bytes to check.
b := src
eof := atEOF
if ns := len(dst); ns < len(b) {
err = transform.ErrShortDst
eof = false
b = b[:ns]
}
i, ok := formTable[f].quickSpan(inputBytes(b), 0, len(b), eof)
n := copy(dst, b[:i])
if !ok {
nDst, nSrc, err = f.transform(dst[n:], src[n:], atEOF)
return nDst + n, nSrc + n, err
}
if err == nil && n < len(src) && !atEOF {
err = transform.ErrShortSrc
}
return n, n, err
}
func flushTransform(rb *reorderBuffer) bool {
// Write out (must fully fit in dst, or else it is an ErrShortDst).
if len(rb.out) < rb.nrune*utf8.UTFMax {
return false
}
rb.out = rb.out[rb.flushCopy(rb.out):]
return true
}
var errs = []error{nil, transform.ErrShortDst, transform.ErrShortSrc}
// transform implements the transform.Transformer interface. It is only called
// when quickSpan does not pass for a given string.
func (f Form) transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
// TODO: get rid of reorderBuffer. See CL 23460044.
rb := reorderBuffer{}
rb.init(f, src)
for {
// Load segment into reorder buffer.
rb.setFlusher(dst[nDst:], flushTransform)
end := decomposeSegment(&rb, nSrc, atEOF)
if end < 0 {
return nDst, nSrc, errs[-end]
}
nDst = len(dst) - len(rb.out)
nSrc = end
// Next quickSpan.
end = rb.nsrc
eof := atEOF
if n := nSrc + len(dst) - nDst; n < end {
err = transform.ErrShortDst
end = n
eof = false
}
end, ok := rb.f.quickSpan(rb.src, nSrc, end, eof)
n := copy(dst[nDst:], rb.src.bytes[nSrc:end])
nSrc += n
nDst += n
if ok {
if err == nil && n < rb.nsrc && !atEOF {
err = transform.ErrShortSrc
}
return nDst, nSrc, err
}
}
}

54
vendor/golang.org/x/text/unicode/norm/trie.go generated vendored Normal file
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@ -0,0 +1,54 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package norm
type valueRange struct {
value uint16 // header: value:stride
lo, hi byte // header: lo:n
}
type sparseBlocks struct {
values []valueRange
offset []uint16
}
var nfcSparse = sparseBlocks{
values: nfcSparseValues[:],
offset: nfcSparseOffset[:],
}
var nfkcSparse = sparseBlocks{
values: nfkcSparseValues[:],
offset: nfkcSparseOffset[:],
}
var (
nfcData = newNfcTrie(0)
nfkcData = newNfkcTrie(0)
)
// lookupValue determines the type of block n and looks up the value for b.
// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block
// is a list of ranges with an accompanying value. Given a matching range r,
// the value for b is by r.value + (b - r.lo) * stride.
func (t *sparseBlocks) lookup(n uint32, b byte) uint16 {
offset := t.offset[n]
header := t.values[offset]
lo := offset + 1
hi := lo + uint16(header.lo)
for lo < hi {
m := lo + (hi-lo)/2
r := t.values[m]
if r.lo <= b && b <= r.hi {
return r.value + uint16(b-r.lo)*header.value
}
if b < r.lo {
hi = m
} else {
lo = m + 1
}
}
return 0
}

390
vendor/google.golang.org/protobuf/types/known/timestamppb/timestamp.pb.go generated vendored
View File

@ -1,390 +0,0 @@
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: google/protobuf/timestamp.proto
// Package timestamppb contains generated types for google/protobuf/timestamp.proto.
//
// The Timestamp message represents a timestamp,
// an instant in time since the Unix epoch (January 1st, 1970).
//
//
// Conversion to a Go Time
//
// The AsTime method can be used to convert a Timestamp message to a
// standard Go time.Time value in UTC:
//
// t := ts.AsTime()
// ... // make use of t as a time.Time
//
// Converting to a time.Time is a common operation so that the extensive
// set of time-based operations provided by the time package can be leveraged.
// See https://golang.org/pkg/time for more information.
//
// The AsTime method performs the conversion on a best-effort basis. Timestamps
// with denormal values (e.g., nanoseconds beyond 0 and 99999999, inclusive)
// are normalized during the conversion to a time.Time. To manually check for
// invalid Timestamps per the documented limitations in timestamp.proto,
// additionally call the CheckValid method:
//
// if err := ts.CheckValid(); err != nil {
// ... // handle error
// }
//
//
// Conversion from a Go Time
//
// The timestamppb.New function can be used to construct a Timestamp message
// from a standard Go time.Time value:
//
// ts := timestamppb.New(t)
// ... // make use of ts as a *timestamppb.Timestamp
//
// In order to construct a Timestamp representing the current time, use Now:
//
// ts := timestamppb.Now()
// ... // make use of ts as a *timestamppb.Timestamp
//
package timestamppb
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
time "time"
)
// A Timestamp represents a point in time independent of any time zone or local
// calendar, encoded as a count of seconds and fractions of seconds at
// nanosecond resolution. The count is relative to an epoch at UTC midnight on
// January 1, 1970, in the proleptic Gregorian calendar which extends the
// Gregorian calendar backwards to year one.
//
// All minutes are 60 seconds long. Leap seconds are "smeared" so that no leap
// second table is needed for interpretation, using a [24-hour linear
// smear](https://developers.google.com/time/smear).
//
// The range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By
// restricting to that range, we ensure that we can convert to and from [RFC
// 3339](https://www.ietf.org/rfc/rfc3339.txt) date strings.
//
// # Examples
//
// Example 1: Compute Timestamp from POSIX `time()`.
//
// Timestamp timestamp;
// timestamp.set_seconds(time(NULL));
// timestamp.set_nanos(0);
//
// Example 2: Compute Timestamp from POSIX `gettimeofday()`.
//
// struct timeval tv;
// gettimeofday(&tv, NULL);
//
// Timestamp timestamp;
// timestamp.set_seconds(tv.tv_sec);
// timestamp.set_nanos(tv.tv_usec * 1000);
//
// Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`.
//
// FILETIME ft;
// GetSystemTimeAsFileTime(&ft);
// UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
//
// // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z
// // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z.
// Timestamp timestamp;
// timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL));
// timestamp.set_nanos((INT32) ((ticks % 10000000) * 100));
//
// Example 4: Compute Timestamp from Java `System.currentTimeMillis()`.
//
// long millis = System.currentTimeMillis();
//
// Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000)
// .setNanos((int) ((millis % 1000) * 1000000)).build();
//
//
// Example 5: Compute Timestamp from Java `Instant.now()`.
//
// Instant now = Instant.now();
//
// Timestamp timestamp =
// Timestamp.newBuilder().setSeconds(now.getEpochSecond())
// .setNanos(now.getNano()).build();
//
//
// Example 6: Compute Timestamp from current time in Python.
//
// timestamp = Timestamp()
// timestamp.GetCurrentTime()
//
// # JSON Mapping
//
// In JSON format, the Timestamp type is encoded as a string in the
// [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) format. That is, the
// format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z"
// where {year} is always expressed using four digits while {month}, {day},
// {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
// seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
// are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
// is required. A proto3 JSON serializer should always use UTC (as indicated by
// "Z") when printing the Timestamp type and a proto3 JSON parser should be
// able to accept both UTC and other timezones (as indicated by an offset).
//
// For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
// 01:30 UTC on January 15, 2017.
//
// In JavaScript, one can convert a Date object to this format using the
// standard
// [toISOString()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString)
// method. In Python, a standard `datetime.datetime` object can be converted
// to this format using
// [`strftime`](https://docs.python.org/2/library/time.html#time.strftime) with
// the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one can use
// the Joda Time's [`ISODateTimeFormat.dateTime()`](
// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime%2D%2D
// ) to obtain a formatter capable of generating timestamps in this format.
//
//
type Timestamp struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Represents seconds of UTC time since Unix epoch
// 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
// 9999-12-31T23:59:59Z inclusive.
Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
// Non-negative fractions of a second at nanosecond resolution. Negative
// second values with fractions must still have non-negative nanos values
// that count forward in time. Must be from 0 to 999,999,999
// inclusive.
Nanos int32 `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"`
}
// Now constructs a new Timestamp from the current time.
func Now() *Timestamp {
return New(time.Now())
}
// New constructs a new Timestamp from the provided time.Time.
func New(t time.Time) *Timestamp {
return &Timestamp{Seconds: int64(t.Unix()), Nanos: int32(t.Nanosecond())}
}
// AsTime converts x to a time.Time.
func (x *Timestamp) AsTime() time.Time {
return time.Unix(int64(x.GetSeconds()), int64(x.GetNanos())).UTC()
}
// IsValid reports whether the timestamp is valid.
// It is equivalent to CheckValid == nil.
func (x *Timestamp) IsValid() bool {
return x.check() == 0
}
// CheckValid returns an error if the timestamp is invalid.
// In particular, it checks whether the value represents a date that is
// in the range of 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z inclusive.
// An error is reported for a nil Timestamp.
func (x *Timestamp) CheckValid() error {
switch x.check() {
case invalidNil:
return protoimpl.X.NewError("invalid nil Timestamp")
case invalidUnderflow:
return protoimpl.X.NewError("timestamp (%v) before 0001-01-01", x)
case invalidOverflow:
return protoimpl.X.NewError("timestamp (%v) after 9999-12-31", x)
case invalidNanos:
return protoimpl.X.NewError("timestamp (%v) has out-of-range nanos", x)
default:
return nil
}
}
const (
_ = iota
invalidNil
invalidUnderflow
invalidOverflow
invalidNanos
)
func (x *Timestamp) check() uint {
const minTimestamp = -62135596800 // Seconds between 1970-01-01T00:00:00Z and 0001-01-01T00:00:00Z, inclusive
const maxTimestamp = +253402300799 // Seconds between 1970-01-01T00:00:00Z and 9999-12-31T23:59:59Z, inclusive
secs := x.GetSeconds()
nanos := x.GetNanos()
switch {
case x == nil:
return invalidNil
case secs < minTimestamp:
return invalidUnderflow
case secs > maxTimestamp:
return invalidOverflow
case nanos < 0 || nanos >= 1e9:
return invalidNanos
default:
return 0
}
}
func (x *Timestamp) Reset() {
*x = Timestamp{}
if protoimpl.UnsafeEnabled {
mi := &file_google_protobuf_timestamp_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Timestamp) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Timestamp) ProtoMessage() {}
func (x *Timestamp) ProtoReflect() protoreflect.Message {
mi := &file_google_protobuf_timestamp_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Timestamp.ProtoReflect.Descriptor instead.
func (*Timestamp) Descriptor() ([]byte, []int) {
return file_google_protobuf_timestamp_proto_rawDescGZIP(), []int{0}
}
func (x *Timestamp) GetSeconds() int64 {
if x != nil {
return x.Seconds
}
return 0
}
func (x *Timestamp) GetNanos() int32 {
if x != nil {
return x.Nanos
}
return 0
}
var File_google_protobuf_timestamp_proto protoreflect.FileDescriptor
var file_google_protobuf_timestamp_proto_rawDesc = []byte{
0x0a, 0x1f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75,
0x66, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74,
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}
var (
file_google_protobuf_timestamp_proto_rawDescOnce sync.Once
file_google_protobuf_timestamp_proto_rawDescData = file_google_protobuf_timestamp_proto_rawDesc
)
func file_google_protobuf_timestamp_proto_rawDescGZIP() []byte {
file_google_protobuf_timestamp_proto_rawDescOnce.Do(func() {
file_google_protobuf_timestamp_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_protobuf_timestamp_proto_rawDescData)
})
return file_google_protobuf_timestamp_proto_rawDescData
}
var file_google_protobuf_timestamp_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_google_protobuf_timestamp_proto_goTypes = []interface{}{
(*Timestamp)(nil), // 0: google.protobuf.Timestamp
}
var file_google_protobuf_timestamp_proto_depIdxs = []int32{
0, // [0:0] is the sub-list for method output_type
0, // [0:0] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_google_protobuf_timestamp_proto_init() }
func file_google_protobuf_timestamp_proto_init() {
if File_google_protobuf_timestamp_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_protobuf_timestamp_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Timestamp); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_protobuf_timestamp_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_protobuf_timestamp_proto_goTypes,
DependencyIndexes: file_google_protobuf_timestamp_proto_depIdxs,
MessageInfos: file_google_protobuf_timestamp_proto_msgTypes,
}.Build()
File_google_protobuf_timestamp_proto = out.File
file_google_protobuf_timestamp_proto_rawDesc = nil
file_google_protobuf_timestamp_proto_goTypes = nil
file_google_protobuf_timestamp_proto_depIdxs = nil
}

8
vendor/modules.txt vendored
View File

@ -18,6 +18,10 @@ github.com/rivo/uniseg
github.com/russross/blackfriday/v2 github.com/russross/blackfriday/v2
# github.com/shurcooL/sanitized_anchor_name v1.0.0 # github.com/shurcooL/sanitized_anchor_name v1.0.0
github.com/shurcooL/sanitized_anchor_name github.com/shurcooL/sanitized_anchor_name
# github.com/spf13/afero v1.8.0
## explicit
github.com/spf13/afero
github.com/spf13/afero/mem
# github.com/urfave/cli/v2 v2.3.0 # github.com/urfave/cli/v2 v2.3.0
## explicit ## explicit
github.com/urfave/cli/v2 github.com/urfave/cli/v2
@ -30,6 +34,9 @@ golang.org/x/sys/unix
golang.org/x/sys/windows golang.org/x/sys/windows
# golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 # golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
golang.org/x/term golang.org/x/term
# golang.org/x/text v0.3.4
golang.org/x/text/transform
golang.org/x/text/unicode/norm
# google.golang.org/protobuf v1.27.1 # google.golang.org/protobuf v1.27.1
## explicit ## explicit
google.golang.org/protobuf/encoding/prototext google.golang.org/protobuf/encoding/prototext
@ -57,4 +64,3 @@ google.golang.org/protobuf/reflect/protoreflect
google.golang.org/protobuf/reflect/protoregistry google.golang.org/protobuf/reflect/protoregistry
google.golang.org/protobuf/runtime/protoiface google.golang.org/protobuf/runtime/protoiface
google.golang.org/protobuf/runtime/protoimpl google.golang.org/protobuf/runtime/protoimpl
google.golang.org/protobuf/types/known/timestamppb