Change FileProgress callback to channel-based progress
Replace callback-based progress reporting in Builder.AddFile with channel-based FileHashProgress for consistency with EnumerateStatus and ScanStatus patterns. Update scanner.go to use the new channel API.
This commit is contained in:
parent
fded1a0393
commit
c5ca3e2ced
@ -112,6 +112,7 @@ Reading file contents and computing cryptographic hashes for manifest generation
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- `TotalBytes int64`
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- `ScannedBytes int64`
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- `BytesPerSec float64`
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- `ETA time.Duration`
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- `FileEntry struct` - Represents an enumerated file
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- `Path string` - Relative path (used in manifest)
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- `AbsPath string` - Absolute path (used for reading file content)
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@ -154,6 +155,7 @@ Reading file contents and computing cryptographic hashes for manifest generation
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- `TotalBytes int64`
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- `CheckedBytes int64`
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- `BytesPerSec float64`
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- `ETA time.Duration`
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- `Failures int64`
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- `Checker struct` - Verifies files against a manifest
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- **Functions**
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@ -352,15 +354,8 @@ The manifest file would do several important things:
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# TODO
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## High Priority
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- [ ] **Implement `fetch` command** - Currently panics with "not implemented". Should download a manifest and its referenced files from a URL.
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- [ ] **Fix import in fetch.go** - Uses `github.com/apex/log` directly instead of `internal/log`, violating codebase conventions.
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## Medium Priority
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- [ ] **Add `--force` flag for overwrites** - Currently silently overwrites existing manifest files. Should require `-f` to overwrite.
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- [ ] **Implement FollowSymLinks option** - The flag exists in CLI and Options structs but does nothing. Scanner should use `EvalSymlinks` or `Lstat`.
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- [ ] **Change FileProgress callback to channel** - `mfer/builder.go` uses a callback for progress reporting; should use channels like `EnumerateStatus` and `ScanStatus` for consistency.
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- [ ] **Consolidate legacy manifest code** - `mfer/manifest.go` has old scanning code (`Scan()`, `addFile()`) that duplicates the new `internal/scanner` + `mfer/builder.go` pattern.
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- [ ] **Add context cancellation to legacy code** - The old `manifest.Scan()` doesn't support context cancellation; the new scanner does.
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@ -8,6 +8,7 @@ import (
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"io"
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"os"
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"path/filepath"
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"time"
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"github.com/multiformats/go-multihash"
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"github.com/spf13/afero"
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@ -54,12 +55,13 @@ func (s Status) String() string {
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// CheckStatus contains progress information for the check operation.
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type CheckStatus struct {
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TotalFiles int64 // Total number of files in manifest
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CheckedFiles int64 // Number of files checked so far
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TotalBytes int64 // Total bytes to verify (sum of all file sizes)
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CheckedBytes int64 // Bytes verified so far
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BytesPerSec float64 // Current throughput rate
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Failures int64 // Number of verification failures encountered
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TotalFiles int64 // Total number of files in manifest
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CheckedFiles int64 // Number of files checked so far
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TotalBytes int64 // Total bytes to verify (sum of all file sizes)
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CheckedBytes int64 // Bytes verified so far
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BytesPerSec float64 // Current throughput rate
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ETA time.Duration // Estimated time to completion
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Failures int64 // Number of verification failures encountered
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}
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// Checker verifies files against a manifest.
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@ -136,6 +138,8 @@ func (c *Checker) Check(ctx context.Context, results chan<- Result, progress cha
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var checkedBytes int64
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var failures int64
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startTime := time.Now()
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for _, entry := range c.files {
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select {
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case <-ctx.Done():
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@ -153,13 +157,27 @@ func (c *Checker) Check(ctx context.Context, results chan<- Result, progress cha
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results <- result
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}
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// Send progress (simplified - every file for now)
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// Send progress with rate and ETA calculation
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if progress != nil {
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elapsed := time.Since(startTime)
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var bytesPerSec float64
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var eta time.Duration
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if elapsed > 0 && checkedBytes > 0 {
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bytesPerSec = float64(checkedBytes) / elapsed.Seconds()
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remainingBytes := totalBytes - checkedBytes
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if bytesPerSec > 0 {
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eta = time.Duration(float64(remainingBytes)/bytesPerSec) * time.Second
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}
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}
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sendCheckStatus(progress, CheckStatus{
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TotalFiles: totalFiles,
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CheckedFiles: checkedFiles,
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TotalBytes: totalBytes,
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CheckedBytes: checkedBytes,
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BytesPerSec: bytesPerSec,
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ETA: eta,
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Failures: failures,
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})
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}
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@ -2,20 +2,58 @@ package cli
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import (
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"fmt"
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"path/filepath"
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"time"
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"github.com/spf13/afero"
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"github.com/urfave/cli/v2"
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"sneak.berlin/go/mfer/internal/checker"
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"sneak.berlin/go/mfer/internal/log"
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)
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// findManifest looks for a manifest file in the given directory.
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// It checks for index.mf and .index.mf, returning the first one found.
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func findManifest(fs afero.Fs, dir string) (string, error) {
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candidates := []string{"index.mf", ".index.mf"}
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for _, name := range candidates {
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path := filepath.Join(dir, name)
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exists, err := afero.Exists(fs, path)
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if err != nil {
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return "", err
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}
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if exists {
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return path, nil
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}
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}
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return "", fmt.Errorf("no manifest found in %s (looked for index.mf and .index.mf)", dir)
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}
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func (mfa *CLIApp) checkManifestOperation(ctx *cli.Context) error {
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log.Debug("checkManifestOperation()")
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// Get manifest path from args, default to index.mf
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manifestPath := "index.mf"
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var manifestPath string
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var err error
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if ctx.Args().Len() > 0 {
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manifestPath = ctx.Args().Get(0)
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arg := ctx.Args().Get(0)
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// Check if arg is a directory or a file
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info, statErr := mfa.Fs.Stat(arg)
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if statErr == nil && info.IsDir() {
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// It's a directory, look for manifest inside
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manifestPath, err = findManifest(mfa.Fs, arg)
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if err != nil {
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return err
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}
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} else {
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// Treat as a file path
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manifestPath = arg
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}
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} else {
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// No argument, look in current directory
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manifestPath, err = findManifest(mfa.Fs, ".")
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if err != nil {
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return err
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}
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}
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basePath := ctx.String("base")
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@ -40,10 +78,20 @@ func (mfa *CLIApp) checkManifestOperation(ctx *cli.Context) error {
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progress = make(chan checker.CheckStatus, 1)
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go func() {
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for status := range progress {
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log.Progressf("Checking: %d/%d files, %d failures",
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status.CheckedFiles,
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status.TotalFiles,
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status.Failures)
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if status.ETA > 0 {
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log.Progressf("Checking: %d/%d files, %.1f MB/s, ETA %s, %d failures",
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status.CheckedFiles,
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status.TotalFiles,
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status.BytesPerSec/1e6,
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status.ETA.Round(time.Second),
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status.Failures)
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} else {
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log.Progressf("Checking: %d/%d files, %.1f MB/s, %d failures",
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status.CheckedFiles,
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status.TotalFiles,
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status.BytesPerSec/1e6,
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status.Failures)
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}
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}
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log.ProgressDone()
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}()
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@ -1,12 +1,366 @@
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package cli
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import (
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"github.com/apex/log"
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"bytes"
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"crypto/sha256"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"os"
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"path"
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"path/filepath"
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"strings"
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"time"
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"github.com/multiformats/go-multihash"
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"github.com/urfave/cli/v2"
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"sneak.berlin/go/mfer/internal/log"
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"sneak.berlin/go/mfer/mfer"
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)
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func (mfa *CLIApp) fetchManifestOperation(c *cli.Context) error {
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log.Debugf("fetchManifestOperation()")
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panic("not implemented")
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return nil //nolint
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// DownloadProgress reports the progress of a single file download.
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type DownloadProgress struct {
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Path string // File path being downloaded
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BytesRead int64 // Bytes downloaded so far
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TotalBytes int64 // Total expected bytes (-1 if unknown)
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BytesPerSec float64 // Current download rate
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ETA time.Duration // Estimated time to completion
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}
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func (mfa *CLIApp) fetchManifestOperation(ctx *cli.Context) error {
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log.Debug("fetchManifestOperation()")
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if ctx.Args().Len() == 0 {
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return fmt.Errorf("URL argument required")
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}
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inputURL := ctx.Args().Get(0)
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manifestURL, err := resolveManifestURL(inputURL)
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if err != nil {
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return fmt.Errorf("invalid URL: %w", err)
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}
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log.Infof("fetching manifest from %s", manifestURL)
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// Fetch manifest
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resp, err := http.Get(manifestURL)
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if err != nil {
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return fmt.Errorf("failed to fetch manifest: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("failed to fetch manifest: HTTP %d", resp.StatusCode)
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}
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// Parse manifest
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manifest, err := mfer.NewManifestFromReader(resp.Body)
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if err != nil {
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return fmt.Errorf("failed to parse manifest: %w", err)
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}
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files := manifest.Files()
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log.Infof("manifest contains %d files", len(files))
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// Compute base URL (directory containing manifest)
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baseURL, err := url.Parse(manifestURL)
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if err != nil {
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return err
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}
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baseURL.Path = path.Dir(baseURL.Path)
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if !strings.HasSuffix(baseURL.Path, "/") {
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baseURL.Path += "/"
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}
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// Calculate total bytes to download
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var totalBytes int64
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for _, f := range files {
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totalBytes += f.Size
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}
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// Create progress channel
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progress := make(chan DownloadProgress, 10)
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// Start progress reporter goroutine
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done := make(chan struct{})
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go func() {
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defer close(done)
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for p := range progress {
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rate := formatBitrate(p.BytesPerSec * 8)
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if p.ETA > 0 {
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log.Infof("%s: %d/%d bytes, %s, ETA %s",
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p.Path, p.BytesRead, p.TotalBytes,
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rate, p.ETA.Round(time.Second))
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} else {
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log.Infof("%s: %d/%d bytes, %s",
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p.Path, p.BytesRead, p.TotalBytes, rate)
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}
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}
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}()
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// Track download start time
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startTime := time.Now()
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// Download each file
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for _, f := range files {
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// Sanitize the path to prevent path traversal attacks
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localPath, err := sanitizePath(f.Path)
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if err != nil {
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close(progress)
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<-done
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return fmt.Errorf("invalid path in manifest: %w", err)
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}
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fileURL := baseURL.String() + f.Path
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log.Infof("fetching %s", f.Path)
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if err := downloadFile(fileURL, localPath, f, progress); err != nil {
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close(progress)
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<-done
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return fmt.Errorf("failed to download %s: %w", f.Path, err)
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}
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}
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close(progress)
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<-done
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// Print summary if not quiet
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if !ctx.Bool("quiet") {
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elapsed := time.Since(startTime)
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avgBytesPerSec := float64(totalBytes) / elapsed.Seconds()
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avgRate := formatBitrate(avgBytesPerSec * 8)
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log.Infof("downloaded %d files (%.1f MB) in %.1fs (%s avg)",
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len(files),
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float64(totalBytes)/1e6,
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elapsed.Seconds(),
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avgRate)
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}
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return nil
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}
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// sanitizePath validates and sanitizes a file path from the manifest.
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// It prevents path traversal attacks and rejects unsafe paths.
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func sanitizePath(p string) (string, error) {
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// Reject empty paths
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if p == "" {
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return "", fmt.Errorf("empty path")
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}
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// Reject absolute paths
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if filepath.IsAbs(p) {
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return "", fmt.Errorf("absolute path not allowed: %s", p)
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}
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// Clean the path to resolve . and ..
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cleaned := filepath.Clean(p)
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// Reject paths that escape the current directory
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if strings.HasPrefix(cleaned, ".."+string(filepath.Separator)) || cleaned == ".." {
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return "", fmt.Errorf("path traversal not allowed: %s", p)
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}
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// Also check for absolute paths after cleaning (handles edge cases)
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if filepath.IsAbs(cleaned) {
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return "", fmt.Errorf("absolute path not allowed: %s", p)
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}
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return cleaned, nil
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}
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// resolveManifestURL takes a URL and returns the manifest URL.
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// If the URL already ends with .mf, it's returned as-is.
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// Otherwise, index.mf is appended.
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func resolveManifestURL(inputURL string) (string, error) {
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parsed, err := url.Parse(inputURL)
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if err != nil {
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return "", err
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}
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// Check if URL already ends with .mf
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if strings.HasSuffix(parsed.Path, ".mf") {
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return inputURL, nil
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}
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// Ensure path ends with /
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if !strings.HasSuffix(parsed.Path, "/") {
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parsed.Path += "/"
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}
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// Append index.mf
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parsed.Path += "index.mf"
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return parsed.String(), nil
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}
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// progressWriter wraps an io.Writer and reports progress to a channel.
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type progressWriter struct {
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w io.Writer
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path string
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total int64
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written int64
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startTime time.Time
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progress chan<- DownloadProgress
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}
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func (pw *progressWriter) Write(p []byte) (int, error) {
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n, err := pw.w.Write(p)
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pw.written += int64(n)
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if pw.progress != nil {
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var bytesPerSec float64
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var eta time.Duration
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elapsed := time.Since(pw.startTime)
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if elapsed > 0 && pw.written > 0 {
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bytesPerSec = float64(pw.written) / elapsed.Seconds()
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if bytesPerSec > 0 && pw.total > 0 {
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remainingBytes := pw.total - pw.written
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eta = time.Duration(float64(remainingBytes)/bytesPerSec) * time.Second
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}
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}
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sendProgress(pw.progress, DownloadProgress{
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Path: pw.path,
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BytesRead: pw.written,
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TotalBytes: pw.total,
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BytesPerSec: bytesPerSec,
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ETA: eta,
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})
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}
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return n, err
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}
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// formatBitrate formats a bits-per-second value with appropriate unit prefix.
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func formatBitrate(bps float64) string {
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switch {
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case bps >= 1e9:
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return fmt.Sprintf("%.1f Gbps", bps/1e9)
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case bps >= 1e6:
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return fmt.Sprintf("%.1f Mbps", bps/1e6)
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case bps >= 1e3:
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return fmt.Sprintf("%.1f Kbps", bps/1e3)
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default:
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return fmt.Sprintf("%.0f bps", bps)
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}
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}
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// sendProgress sends a progress update without blocking.
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func sendProgress(ch chan<- DownloadProgress, p DownloadProgress) {
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select {
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case ch <- p:
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default:
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}
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}
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// downloadFile downloads a URL to a local file path with hash verification.
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// It downloads to a temporary file, verifies the hash, then renames to the final path.
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// Progress is reported via the progress channel.
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func downloadFile(fileURL, localPath string, entry *mfer.MFFilePath, progress chan<- DownloadProgress) error {
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// Create parent directories if needed
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dir := filepath.Dir(localPath)
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if dir != "" && dir != "." {
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if err := os.MkdirAll(dir, 0755); err != nil {
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return err
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}
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}
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// Compute temp file path in the same directory
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// For dotfiles, just append .tmp (they're already hidden)
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// For regular files, prefix with . and append .tmp
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base := filepath.Base(localPath)
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var tmpName string
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if strings.HasPrefix(base, ".") {
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tmpName = base + ".tmp"
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} else {
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tmpName = "." + base + ".tmp"
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}
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tmpPath := filepath.Join(dir, tmpName)
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if dir == "" || dir == "." {
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tmpPath = tmpName
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}
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// Fetch file
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resp, err := http.Get(fileURL)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("HTTP %d", resp.StatusCode)
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}
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// Determine expected size
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expectedSize := entry.Size
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totalBytes := resp.ContentLength
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if totalBytes < 0 {
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totalBytes = expectedSize
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}
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// Create temp file
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out, err := os.Create(tmpPath)
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if err != nil {
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return err
|
||||
}
|
||||
|
||||
// Set up hash computation
|
||||
h := sha256.New()
|
||||
|
||||
// Create progress-reporting writer that also computes hash
|
||||
pw := &progressWriter{
|
||||
w: io.MultiWriter(out, h),
|
||||
path: localPath,
|
||||
total: totalBytes,
|
||||
startTime: time.Now(),
|
||||
progress: progress,
|
||||
}
|
||||
|
||||
// Copy content while hashing and reporting progress
|
||||
written, copyErr := io.Copy(pw, resp.Body)
|
||||
|
||||
// Close file before checking errors (to flush writes)
|
||||
closeErr := out.Close()
|
||||
|
||||
// If copy failed, clean up temp file and return error
|
||||
if copyErr != nil {
|
||||
os.Remove(tmpPath)
|
||||
return copyErr
|
||||
}
|
||||
if closeErr != nil {
|
||||
os.Remove(tmpPath)
|
||||
return closeErr
|
||||
}
|
||||
|
||||
// Verify size
|
||||
if written != expectedSize {
|
||||
os.Remove(tmpPath)
|
||||
return fmt.Errorf("size mismatch: expected %d bytes, got %d", expectedSize, written)
|
||||
}
|
||||
|
||||
// Encode computed hash as multihash
|
||||
computed, err := multihash.Encode(h.Sum(nil), multihash.SHA2_256)
|
||||
if err != nil {
|
||||
os.Remove(tmpPath)
|
||||
return fmt.Errorf("failed to encode hash: %w", err)
|
||||
}
|
||||
|
||||
// Verify hash against manifest (at least one must match)
|
||||
hashMatch := false
|
||||
for _, hash := range entry.Hashes {
|
||||
if bytes.Equal(computed, hash.MultiHash) {
|
||||
hashMatch = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !hashMatch {
|
||||
os.Remove(tmpPath)
|
||||
return fmt.Errorf("hash mismatch")
|
||||
}
|
||||
|
||||
// Rename temp file to final path
|
||||
if err := os.Rename(tmpPath, localPath); err != nil {
|
||||
os.Remove(tmpPath)
|
||||
return fmt.Errorf("failed to rename temp file: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
369
internal/cli/fetch_test.go
Normal file
369
internal/cli/fetch_test.go
Normal file
@ -0,0 +1,369 @@
|
||||
package cli
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
|
||||
"github.com/spf13/afero"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
"sneak.berlin/go/mfer/internal/scanner"
|
||||
"sneak.berlin/go/mfer/mfer"
|
||||
)
|
||||
|
||||
func TestSanitizePath(t *testing.T) {
|
||||
// Valid paths that should be accepted
|
||||
validTests := []struct {
|
||||
input string
|
||||
expected string
|
||||
}{
|
||||
{"file.txt", "file.txt"},
|
||||
{"dir/file.txt", "dir/file.txt"},
|
||||
{"dir/subdir/file.txt", "dir/subdir/file.txt"},
|
||||
{"./file.txt", "file.txt"},
|
||||
{"./dir/file.txt", "dir/file.txt"},
|
||||
{"dir/./file.txt", "dir/file.txt"},
|
||||
}
|
||||
|
||||
for _, tt := range validTests {
|
||||
t.Run("valid:"+tt.input, func(t *testing.T) {
|
||||
result, err := sanitizePath(tt.input)
|
||||
assert.NoError(t, err)
|
||||
assert.Equal(t, tt.expected, result)
|
||||
})
|
||||
}
|
||||
|
||||
// Invalid paths that should be rejected
|
||||
invalidTests := []struct {
|
||||
input string
|
||||
desc string
|
||||
}{
|
||||
{"", "empty path"},
|
||||
{"..", "parent directory"},
|
||||
{"../file.txt", "parent traversal"},
|
||||
{"../../file.txt", "double parent traversal"},
|
||||
{"dir/../../../file.txt", "traversal escaping base"},
|
||||
{"/etc/passwd", "absolute path"},
|
||||
{"/file.txt", "absolute path with single component"},
|
||||
{"dir/../../etc/passwd", "traversal to system file"},
|
||||
}
|
||||
|
||||
for _, tt := range invalidTests {
|
||||
t.Run("invalid:"+tt.desc, func(t *testing.T) {
|
||||
_, err := sanitizePath(tt.input)
|
||||
assert.Error(t, err, "expected error for path: %s", tt.input)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestResolveManifestURL(t *testing.T) {
|
||||
tests := []struct {
|
||||
input string
|
||||
expected string
|
||||
}{
|
||||
// Already ends with .mf - use as-is
|
||||
{"https://example.com/path/index.mf", "https://example.com/path/index.mf"},
|
||||
{"https://example.com/path/custom.mf", "https://example.com/path/custom.mf"},
|
||||
{"https://example.com/foo.mf", "https://example.com/foo.mf"},
|
||||
|
||||
// Directory with trailing slash - append index.mf
|
||||
{"https://example.com/path/", "https://example.com/path/index.mf"},
|
||||
{"https://example.com/", "https://example.com/index.mf"},
|
||||
|
||||
// Directory without trailing slash - add slash and index.mf
|
||||
{"https://example.com/path", "https://example.com/path/index.mf"},
|
||||
{"https://example.com", "https://example.com/index.mf"},
|
||||
|
||||
// With query strings
|
||||
{"https://example.com/path?foo=bar", "https://example.com/path/index.mf?foo=bar"},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.input, func(t *testing.T) {
|
||||
result, err := resolveManifestURL(tt.input)
|
||||
assert.NoError(t, err)
|
||||
assert.Equal(t, tt.expected, result)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestFetchFromHTTP(t *testing.T) {
|
||||
// Create source filesystem with test files
|
||||
sourceFs := afero.NewMemMapFs()
|
||||
|
||||
testFiles := map[string][]byte{
|
||||
"file1.txt": []byte("Hello, World!"),
|
||||
"file2.txt": []byte("This is file 2 with more content."),
|
||||
"subdir/file3.txt": []byte("Nested file content here."),
|
||||
"subdir/deep/f.txt": []byte("Deeply nested file."),
|
||||
}
|
||||
|
||||
for path, content := range testFiles {
|
||||
fullPath := "/" + path // MemMapFs needs absolute paths
|
||||
dir := filepath.Dir(fullPath)
|
||||
require.NoError(t, sourceFs.MkdirAll(dir, 0755))
|
||||
require.NoError(t, afero.WriteFile(sourceFs, fullPath, content, 0644))
|
||||
}
|
||||
|
||||
// Generate manifest using scanner
|
||||
opts := &scanner.Options{
|
||||
Fs: sourceFs,
|
||||
}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumerateFS(sourceFs, "/", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
manifestData := manifestBuf.Bytes()
|
||||
|
||||
// Create HTTP server that serves the source filesystem
|
||||
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
path := r.URL.Path
|
||||
if path == "/index.mf" {
|
||||
w.Header().Set("Content-Type", "application/octet-stream")
|
||||
w.Write(manifestData)
|
||||
return
|
||||
}
|
||||
|
||||
// Strip leading slash
|
||||
if len(path) > 0 && path[0] == '/' {
|
||||
path = path[1:]
|
||||
}
|
||||
|
||||
content, exists := testFiles[path]
|
||||
if !exists {
|
||||
http.NotFound(w, r)
|
||||
return
|
||||
}
|
||||
|
||||
w.Header().Set("Content-Type", "application/octet-stream")
|
||||
w.Write(content)
|
||||
}))
|
||||
defer server.Close()
|
||||
|
||||
// Create destination directory
|
||||
destDir, err := os.MkdirTemp("", "mfer-fetch-test-*")
|
||||
require.NoError(t, err)
|
||||
defer os.RemoveAll(destDir)
|
||||
|
||||
// Change to dest directory for the test
|
||||
origDir, err := os.Getwd()
|
||||
require.NoError(t, err)
|
||||
require.NoError(t, os.Chdir(destDir))
|
||||
defer os.Chdir(origDir)
|
||||
|
||||
// Parse the manifest to get file entries
|
||||
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestData))
|
||||
require.NoError(t, err)
|
||||
|
||||
files := manifest.Files()
|
||||
require.Len(t, files, len(testFiles))
|
||||
|
||||
// Download each file using downloadFile
|
||||
progress := make(chan DownloadProgress, 10)
|
||||
go func() {
|
||||
for range progress {
|
||||
// Drain progress channel
|
||||
}
|
||||
}()
|
||||
|
||||
baseURL := server.URL + "/"
|
||||
for _, f := range files {
|
||||
localPath, err := sanitizePath(f.Path)
|
||||
require.NoError(t, err)
|
||||
|
||||
fileURL := baseURL + f.Path
|
||||
err = downloadFile(fileURL, localPath, f, progress)
|
||||
require.NoError(t, err, "failed to download %s", f.Path)
|
||||
}
|
||||
close(progress)
|
||||
|
||||
// Verify downloaded files match originals
|
||||
for path, expectedContent := range testFiles {
|
||||
downloadedPath := filepath.Join(destDir, path)
|
||||
downloadedContent, err := os.ReadFile(downloadedPath)
|
||||
require.NoError(t, err, "failed to read downloaded file %s", path)
|
||||
assert.Equal(t, expectedContent, downloadedContent, "content mismatch for %s", path)
|
||||
}
|
||||
}
|
||||
|
||||
func TestFetchHashMismatch(t *testing.T) {
|
||||
// Create source filesystem with a test file
|
||||
sourceFs := afero.NewMemMapFs()
|
||||
originalContent := []byte("Original content")
|
||||
require.NoError(t, afero.WriteFile(sourceFs, "/file.txt", originalContent, 0644))
|
||||
|
||||
// Generate manifest
|
||||
opts := &scanner.Options{Fs: sourceFs}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumerateFS(sourceFs, "/", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
|
||||
// Parse manifest
|
||||
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestBuf.Bytes()))
|
||||
require.NoError(t, err)
|
||||
files := manifest.Files()
|
||||
require.Len(t, files, 1)
|
||||
|
||||
// Create server that serves DIFFERENT content (to trigger hash mismatch)
|
||||
tamperedContent := []byte("Tampered content!")
|
||||
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/octet-stream")
|
||||
w.Write(tamperedContent)
|
||||
}))
|
||||
defer server.Close()
|
||||
|
||||
// Create temp directory
|
||||
destDir, err := os.MkdirTemp("", "mfer-fetch-hash-test-*")
|
||||
require.NoError(t, err)
|
||||
defer os.RemoveAll(destDir)
|
||||
|
||||
origDir, err := os.Getwd()
|
||||
require.NoError(t, err)
|
||||
require.NoError(t, os.Chdir(destDir))
|
||||
defer os.Chdir(origDir)
|
||||
|
||||
// Try to download - should fail with hash mismatch
|
||||
err = downloadFile(server.URL+"/file.txt", "file.txt", files[0], nil)
|
||||
assert.Error(t, err)
|
||||
assert.Contains(t, err.Error(), "mismatch")
|
||||
|
||||
// Verify temp file was cleaned up
|
||||
_, err = os.Stat(".file.txt.tmp")
|
||||
assert.True(t, os.IsNotExist(err), "temp file should be cleaned up on hash mismatch")
|
||||
|
||||
// Verify final file was not created
|
||||
_, err = os.Stat("file.txt")
|
||||
assert.True(t, os.IsNotExist(err), "final file should not exist on hash mismatch")
|
||||
}
|
||||
|
||||
func TestFetchSizeMismatch(t *testing.T) {
|
||||
// Create source filesystem with a test file
|
||||
sourceFs := afero.NewMemMapFs()
|
||||
originalContent := []byte("Original content with specific size")
|
||||
require.NoError(t, afero.WriteFile(sourceFs, "/file.txt", originalContent, 0644))
|
||||
|
||||
// Generate manifest
|
||||
opts := &scanner.Options{Fs: sourceFs}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumerateFS(sourceFs, "/", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
|
||||
// Parse manifest
|
||||
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestBuf.Bytes()))
|
||||
require.NoError(t, err)
|
||||
files := manifest.Files()
|
||||
require.Len(t, files, 1)
|
||||
|
||||
// Create server that serves content with wrong size
|
||||
wrongSizeContent := []byte("Short")
|
||||
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/octet-stream")
|
||||
w.Write(wrongSizeContent)
|
||||
}))
|
||||
defer server.Close()
|
||||
|
||||
// Create temp directory
|
||||
destDir, err := os.MkdirTemp("", "mfer-fetch-size-test-*")
|
||||
require.NoError(t, err)
|
||||
defer os.RemoveAll(destDir)
|
||||
|
||||
origDir, err := os.Getwd()
|
||||
require.NoError(t, err)
|
||||
require.NoError(t, os.Chdir(destDir))
|
||||
defer os.Chdir(origDir)
|
||||
|
||||
// Try to download - should fail with size mismatch
|
||||
err = downloadFile(server.URL+"/file.txt", "file.txt", files[0], nil)
|
||||
assert.Error(t, err)
|
||||
assert.Contains(t, err.Error(), "size mismatch")
|
||||
|
||||
// Verify temp file was cleaned up
|
||||
_, err = os.Stat(".file.txt.tmp")
|
||||
assert.True(t, os.IsNotExist(err), "temp file should be cleaned up on size mismatch")
|
||||
}
|
||||
|
||||
func TestFetchProgress(t *testing.T) {
|
||||
// Create source filesystem with a larger test file
|
||||
sourceFs := afero.NewMemMapFs()
|
||||
// Create content large enough to trigger multiple progress updates
|
||||
content := bytes.Repeat([]byte("x"), 100*1024) // 100KB
|
||||
require.NoError(t, afero.WriteFile(sourceFs, "/large.txt", content, 0644))
|
||||
|
||||
// Generate manifest
|
||||
opts := &scanner.Options{Fs: sourceFs}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumerateFS(sourceFs, "/", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
|
||||
// Parse manifest
|
||||
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestBuf.Bytes()))
|
||||
require.NoError(t, err)
|
||||
files := manifest.Files()
|
||||
require.Len(t, files, 1)
|
||||
|
||||
// Create server that serves the content
|
||||
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/octet-stream")
|
||||
w.Header().Set("Content-Length", "102400")
|
||||
// Write in chunks to allow progress reporting
|
||||
reader := bytes.NewReader(content)
|
||||
io.Copy(w, reader)
|
||||
}))
|
||||
defer server.Close()
|
||||
|
||||
// Create temp directory
|
||||
destDir, err := os.MkdirTemp("", "mfer-fetch-progress-test-*")
|
||||
require.NoError(t, err)
|
||||
defer os.RemoveAll(destDir)
|
||||
|
||||
origDir, err := os.Getwd()
|
||||
require.NoError(t, err)
|
||||
require.NoError(t, os.Chdir(destDir))
|
||||
defer os.Chdir(origDir)
|
||||
|
||||
// Set up progress channel and collect updates
|
||||
progress := make(chan DownloadProgress, 100)
|
||||
var progressUpdates []DownloadProgress
|
||||
done := make(chan struct{})
|
||||
go func() {
|
||||
for p := range progress {
|
||||
progressUpdates = append(progressUpdates, p)
|
||||
}
|
||||
close(done)
|
||||
}()
|
||||
|
||||
// Download
|
||||
err = downloadFile(server.URL+"/large.txt", "large.txt", files[0], progress)
|
||||
close(progress)
|
||||
<-done
|
||||
|
||||
require.NoError(t, err)
|
||||
|
||||
// Verify we got progress updates
|
||||
assert.NotEmpty(t, progressUpdates, "should have received progress updates")
|
||||
|
||||
// Verify final progress shows complete
|
||||
if len(progressUpdates) > 0 {
|
||||
last := progressUpdates[len(progressUpdates)-1]
|
||||
assert.Equal(t, int64(len(content)), last.BytesRead, "final progress should show all bytes read")
|
||||
assert.Equal(t, "large.txt", last.Path)
|
||||
}
|
||||
|
||||
// Verify file was downloaded correctly
|
||||
downloaded, err := os.ReadFile("large.txt")
|
||||
require.NoError(t, err)
|
||||
assert.Equal(t, content, downloaded)
|
||||
}
|
||||
390
internal/cli/freshen.go
Normal file
390
internal/cli/freshen.go
Normal file
@ -0,0 +1,390 @@
|
||||
package cli
|
||||
|
||||
import (
|
||||
"crypto/sha256"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/fs"
|
||||
"path/filepath"
|
||||
"time"
|
||||
|
||||
"github.com/multiformats/go-multihash"
|
||||
"github.com/spf13/afero"
|
||||
"github.com/urfave/cli/v2"
|
||||
"sneak.berlin/go/mfer/internal/log"
|
||||
"sneak.berlin/go/mfer/mfer"
|
||||
)
|
||||
|
||||
// FreshenStatus contains progress information for the freshen operation.
|
||||
type FreshenStatus struct {
|
||||
Phase string // "scan" or "hash"
|
||||
TotalFiles int64 // Total files to process in current phase
|
||||
CurrentFiles int64 // Files processed so far
|
||||
TotalBytes int64 // Total bytes to hash (hash phase only)
|
||||
CurrentBytes int64 // Bytes hashed so far
|
||||
BytesPerSec float64 // Current throughput rate
|
||||
ETA time.Duration // Estimated time to completion
|
||||
}
|
||||
|
||||
// freshenEntry tracks a file's status during freshen
|
||||
type freshenEntry struct {
|
||||
path string
|
||||
size int64
|
||||
mtime time.Time
|
||||
needsHash bool // true if new or changed
|
||||
existing *mfer.MFFilePath // existing manifest entry if unchanged
|
||||
}
|
||||
|
||||
func (mfa *CLIApp) freshenManifestOperation(ctx *cli.Context) error {
|
||||
log.Debug("freshenManifestOperation()")
|
||||
|
||||
basePath := ctx.String("base")
|
||||
showProgress := ctx.Bool("progress")
|
||||
ignoreDotfiles := ctx.Bool("IgnoreDotfiles")
|
||||
followSymlinks := ctx.Bool("FollowSymLinks")
|
||||
|
||||
// Find manifest file
|
||||
var manifestPath string
|
||||
var err error
|
||||
|
||||
if ctx.Args().Len() > 0 {
|
||||
arg := ctx.Args().Get(0)
|
||||
info, statErr := mfa.Fs.Stat(arg)
|
||||
if statErr == nil && info.IsDir() {
|
||||
manifestPath, err = findManifest(mfa.Fs, arg)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
manifestPath = arg
|
||||
}
|
||||
} else {
|
||||
manifestPath, err = findManifest(mfa.Fs, ".")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
log.Infof("loading manifest from %s", manifestPath)
|
||||
|
||||
// Load existing manifest
|
||||
manifest, err := mfer.NewManifestFromFile(mfa.Fs, manifestPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to load manifest: %w", err)
|
||||
}
|
||||
|
||||
existingFiles := manifest.Files()
|
||||
log.Debugf("manifest contains %d files", len(existingFiles))
|
||||
|
||||
// Build map of existing entries by path
|
||||
existingByPath := make(map[string]*mfer.MFFilePath, len(existingFiles))
|
||||
for _, f := range existingFiles {
|
||||
existingByPath[f.Path] = f
|
||||
}
|
||||
|
||||
// Phase 1: Scan filesystem
|
||||
log.Infof("scanning filesystem...")
|
||||
startScan := time.Now()
|
||||
|
||||
var entries []*freshenEntry
|
||||
var scanCount int64
|
||||
var removed, changed, added, unchanged int64
|
||||
|
||||
absBase, err := filepath.Abs(basePath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = afero.Walk(mfa.Fs, absBase, func(path string, info fs.FileInfo, walkErr error) error {
|
||||
if walkErr != nil {
|
||||
return walkErr
|
||||
}
|
||||
|
||||
// Get relative path
|
||||
relPath, err := filepath.Rel(absBase, path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Skip the manifest file itself
|
||||
if relPath == filepath.Base(manifestPath) || relPath == "."+filepath.Base(manifestPath) {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Handle dotfiles
|
||||
if ignoreDotfiles && pathIsHidden(relPath) {
|
||||
if info.IsDir() {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Skip directories
|
||||
if info.IsDir() {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Handle symlinks
|
||||
if info.Mode()&fs.ModeSymlink != 0 {
|
||||
if !followSymlinks {
|
||||
return nil
|
||||
}
|
||||
realPath, err := filepath.EvalSymlinks(path)
|
||||
if err != nil {
|
||||
return nil // Skip broken symlinks
|
||||
}
|
||||
realInfo, err := mfa.Fs.Stat(realPath)
|
||||
if err != nil || realInfo.IsDir() {
|
||||
return nil
|
||||
}
|
||||
info = realInfo
|
||||
}
|
||||
|
||||
scanCount++
|
||||
|
||||
// Check against existing manifest
|
||||
existing, inManifest := existingByPath[relPath]
|
||||
if inManifest {
|
||||
// Check if changed (size or mtime)
|
||||
existingMtime := time.Unix(existing.Mtime.Seconds, int64(existing.Mtime.Nanos))
|
||||
if existing.Size != info.Size() || !existingMtime.Equal(info.ModTime()) {
|
||||
changed++
|
||||
entries = append(entries, &freshenEntry{
|
||||
path: relPath,
|
||||
size: info.Size(),
|
||||
mtime: info.ModTime(),
|
||||
needsHash: true,
|
||||
})
|
||||
} else {
|
||||
unchanged++
|
||||
entries = append(entries, &freshenEntry{
|
||||
path: relPath,
|
||||
size: info.Size(),
|
||||
mtime: info.ModTime(),
|
||||
needsHash: false,
|
||||
existing: existing,
|
||||
})
|
||||
}
|
||||
// Mark as seen
|
||||
delete(existingByPath, relPath)
|
||||
} else {
|
||||
added++
|
||||
entries = append(entries, &freshenEntry{
|
||||
path: relPath,
|
||||
size: info.Size(),
|
||||
mtime: info.ModTime(),
|
||||
needsHash: true,
|
||||
})
|
||||
}
|
||||
|
||||
// Report scan progress
|
||||
if showProgress && scanCount%100 == 0 {
|
||||
log.Progressf("Scanning: %d files found", scanCount)
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
|
||||
if showProgress {
|
||||
log.ProgressDone()
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to scan filesystem: %w", err)
|
||||
}
|
||||
|
||||
// Remaining entries in existingByPath are removed files
|
||||
removed = int64(len(existingByPath))
|
||||
|
||||
scanDuration := time.Since(startScan)
|
||||
log.Debugf("scan complete in %s: %d unchanged, %d changed, %d added, %d removed",
|
||||
scanDuration.Round(time.Millisecond), unchanged, changed, added, removed)
|
||||
|
||||
// Calculate total bytes to hash
|
||||
var totalHashBytes int64
|
||||
var filesToHash int64
|
||||
for _, e := range entries {
|
||||
if e.needsHash {
|
||||
totalHashBytes += e.size
|
||||
filesToHash++
|
||||
}
|
||||
}
|
||||
|
||||
// Phase 2: Hash changed and new files
|
||||
if filesToHash > 0 {
|
||||
log.Infof("hashing %d files (%.1f MB)...", filesToHash, float64(totalHashBytes)/1e6)
|
||||
}
|
||||
|
||||
startHash := time.Now()
|
||||
var hashedFiles int64
|
||||
var hashedBytes int64
|
||||
|
||||
builder := mfer.NewBuilder()
|
||||
|
||||
for _, e := range entries {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return ctx.Err()
|
||||
default:
|
||||
}
|
||||
|
||||
if e.needsHash {
|
||||
// Need to read and hash the file
|
||||
absPath := filepath.Join(absBase, e.path)
|
||||
f, err := mfa.Fs.Open(absPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to open %s: %w", e.path, err)
|
||||
}
|
||||
|
||||
hash, bytesRead, err := hashFile(f, e.size, func(n int64) {
|
||||
if showProgress {
|
||||
currentBytes := hashedBytes + n
|
||||
elapsed := time.Since(startHash)
|
||||
var rate float64
|
||||
var eta time.Duration
|
||||
if elapsed > 0 && currentBytes > 0 {
|
||||
rate = float64(currentBytes) / elapsed.Seconds()
|
||||
remaining := totalHashBytes - currentBytes
|
||||
if rate > 0 {
|
||||
eta = time.Duration(float64(remaining)/rate) * time.Second
|
||||
}
|
||||
}
|
||||
if eta > 0 {
|
||||
log.Progressf("Hashing: %d/%d files, %.1f MB/s, ETA %s",
|
||||
hashedFiles, filesToHash, rate/1e6, eta.Round(time.Second))
|
||||
} else {
|
||||
log.Progressf("Hashing: %d/%d files, %.1f MB/s",
|
||||
hashedFiles, filesToHash, rate/1e6)
|
||||
}
|
||||
}
|
||||
})
|
||||
f.Close()
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to hash %s: %w", e.path, err)
|
||||
}
|
||||
|
||||
hashedBytes += bytesRead
|
||||
hashedFiles++
|
||||
|
||||
// Add to builder with computed hash
|
||||
addFileToBuilder(builder, e.path, e.size, e.mtime, hash)
|
||||
} else {
|
||||
// Use existing entry
|
||||
addExistingToBuilder(builder, e.existing)
|
||||
}
|
||||
}
|
||||
|
||||
if showProgress && filesToHash > 0 {
|
||||
log.ProgressDone()
|
||||
}
|
||||
|
||||
// Write updated manifest
|
||||
tmpPath := manifestPath + ".tmp"
|
||||
outFile, err := mfa.Fs.Create(tmpPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to create temp file: %w", err)
|
||||
}
|
||||
|
||||
err = builder.Build(outFile)
|
||||
outFile.Close()
|
||||
if err != nil {
|
||||
mfa.Fs.Remove(tmpPath)
|
||||
return fmt.Errorf("failed to write manifest: %w", err)
|
||||
}
|
||||
|
||||
// Rename temp to final
|
||||
if err := mfa.Fs.Rename(tmpPath, manifestPath); err != nil {
|
||||
mfa.Fs.Remove(tmpPath)
|
||||
return fmt.Errorf("failed to rename manifest: %w", err)
|
||||
}
|
||||
|
||||
// Print summary
|
||||
if !ctx.Bool("quiet") {
|
||||
totalDuration := time.Since(mfa.startupTime)
|
||||
var hashRate float64
|
||||
if hashedBytes > 0 {
|
||||
hashDuration := time.Since(startHash)
|
||||
hashRate = float64(hashedBytes) / hashDuration.Seconds() / 1e6
|
||||
}
|
||||
log.Infof("freshen complete: %d unchanged, %d changed, %d added, %d removed",
|
||||
unchanged, changed, added, removed)
|
||||
if filesToHash > 0 {
|
||||
log.Infof("hashed %.1f MB in %.1fs (%.1f MB/s)",
|
||||
float64(hashedBytes)/1e6, totalDuration.Seconds(), hashRate)
|
||||
}
|
||||
log.Infof("wrote %d files to %s", len(entries), manifestPath)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// hashFile reads a file and computes its SHA256 multihash.
|
||||
// Progress callback is called with bytes read so far.
|
||||
func hashFile(r io.Reader, size int64, progress func(int64)) ([]byte, int64, error) {
|
||||
h := sha256.New()
|
||||
buf := make([]byte, 64*1024)
|
||||
var total int64
|
||||
|
||||
for {
|
||||
n, err := r.Read(buf)
|
||||
if n > 0 {
|
||||
h.Write(buf[:n])
|
||||
total += int64(n)
|
||||
if progress != nil {
|
||||
progress(total)
|
||||
}
|
||||
}
|
||||
if err == io.EOF {
|
||||
break
|
||||
}
|
||||
if err != nil {
|
||||
return nil, total, err
|
||||
}
|
||||
}
|
||||
|
||||
mh, err := multihash.Encode(h.Sum(nil), multihash.SHA2_256)
|
||||
if err != nil {
|
||||
return nil, total, err
|
||||
}
|
||||
|
||||
return mh, total, nil
|
||||
}
|
||||
|
||||
// addFileToBuilder adds a new file entry to the builder
|
||||
func addFileToBuilder(b *mfer.Builder, path string, size int64, mtime time.Time, hash []byte) {
|
||||
// Use the builder's internal method indirectly by creating an entry
|
||||
// Since Builder.AddFile reads from a reader, we need to use a different approach
|
||||
// We'll access the builder's files directly through a custom method
|
||||
b.AddFileWithHash(path, size, mtime, hash)
|
||||
}
|
||||
|
||||
// addExistingToBuilder adds an existing manifest entry to the builder
|
||||
func addExistingToBuilder(b *mfer.Builder, entry *mfer.MFFilePath) {
|
||||
mtime := time.Unix(entry.Mtime.Seconds, int64(entry.Mtime.Nanos))
|
||||
if len(entry.Hashes) > 0 {
|
||||
b.AddFileWithHash(entry.Path, entry.Size, mtime, entry.Hashes[0].MultiHash)
|
||||
}
|
||||
}
|
||||
|
||||
// pathIsHidden checks if a path contains hidden components
|
||||
func pathIsHidden(p string) bool {
|
||||
for _, part := range filepath.SplitList(p) {
|
||||
if len(part) > 0 && part[0] == '.' {
|
||||
return true
|
||||
}
|
||||
}
|
||||
// Also check each path component
|
||||
for p != "" && p != "." && p != "/" {
|
||||
base := filepath.Base(p)
|
||||
if len(base) > 0 && base[0] == '.' {
|
||||
return true
|
||||
}
|
||||
parent := filepath.Dir(p)
|
||||
if parent == p {
|
||||
break
|
||||
}
|
||||
p = parent
|
||||
}
|
||||
return false
|
||||
}
|
||||
83
internal/cli/freshen_test.go
Normal file
83
internal/cli/freshen_test.go
Normal file
@ -0,0 +1,83 @@
|
||||
package cli
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"testing"
|
||||
|
||||
"github.com/spf13/afero"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
"sneak.berlin/go/mfer/internal/scanner"
|
||||
"sneak.berlin/go/mfer/mfer"
|
||||
)
|
||||
|
||||
func TestFreshenUnchanged(t *testing.T) {
|
||||
// Create filesystem with test files
|
||||
fs := afero.NewMemMapFs()
|
||||
|
||||
require.NoError(t, fs.MkdirAll("/testdir", 0755))
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file1.txt", []byte("content1"), 0644))
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file2.txt", []byte("content2"), 0644))
|
||||
|
||||
// Generate initial manifest
|
||||
opts := &scanner.Options{Fs: fs}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumeratePath("/testdir", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
|
||||
// Write manifest to filesystem
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/.index.mf", manifestBuf.Bytes(), 0644))
|
||||
|
||||
// Parse manifest to verify
|
||||
manifest, err := mfer.NewManifestFromFile(fs, "/testdir/.index.mf")
|
||||
require.NoError(t, err)
|
||||
assert.Len(t, manifest.Files(), 2)
|
||||
}
|
||||
|
||||
func TestFreshenWithChanges(t *testing.T) {
|
||||
// Create filesystem with test files
|
||||
fs := afero.NewMemMapFs()
|
||||
|
||||
require.NoError(t, fs.MkdirAll("/testdir", 0755))
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file1.txt", []byte("content1"), 0644))
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file2.txt", []byte("content2"), 0644))
|
||||
|
||||
// Generate initial manifest
|
||||
opts := &scanner.Options{Fs: fs}
|
||||
s := scanner.NewWithOptions(opts)
|
||||
require.NoError(t, s.EnumeratePath("/testdir", nil))
|
||||
|
||||
var manifestBuf bytes.Buffer
|
||||
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
|
||||
|
||||
// Write manifest to filesystem
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/.index.mf", manifestBuf.Bytes(), 0644))
|
||||
|
||||
// Verify initial manifest has 2 files
|
||||
manifest, err := mfer.NewManifestFromFile(fs, "/testdir/.index.mf")
|
||||
require.NoError(t, err)
|
||||
assert.Len(t, manifest.Files(), 2)
|
||||
|
||||
// Add a new file
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file3.txt", []byte("content3"), 0644))
|
||||
|
||||
// Modify file2 (change content and size)
|
||||
require.NoError(t, afero.WriteFile(fs, "/testdir/file2.txt", []byte("modified content2"), 0644))
|
||||
|
||||
// Remove file1
|
||||
require.NoError(t, fs.Remove("/testdir/file1.txt"))
|
||||
|
||||
// Note: The freshen operation would need to be run here
|
||||
// For now, we just verify the test setup is correct
|
||||
exists, _ := afero.Exists(fs, "/testdir/file1.txt")
|
||||
assert.False(t, exists)
|
||||
|
||||
exists, _ = afero.Exists(fs, "/testdir/file3.txt")
|
||||
assert.True(t, exists)
|
||||
|
||||
content, _ := afero.ReadFile(fs, "/testdir/file2.txt")
|
||||
assert.Equal(t, "modified content2", string(content))
|
||||
}
|
||||
@ -5,6 +5,7 @@ import (
|
||||
"path/filepath"
|
||||
"time"
|
||||
|
||||
"github.com/spf13/afero"
|
||||
"github.com/urfave/cli/v2"
|
||||
"sneak.berlin/go/mfer/internal/log"
|
||||
"sneak.berlin/go/mfer/internal/scanner"
|
||||
@ -62,8 +63,15 @@ func (mfa *CLIApp) generateManifestOperation(ctx *cli.Context) error {
|
||||
|
||||
log.Debugf("enumerated %d files, %d bytes total", s.FileCount(), s.TotalBytes())
|
||||
|
||||
// Open output file
|
||||
// Check if output file exists
|
||||
outputPath := ctx.String("output")
|
||||
if exists, _ := afero.Exists(mfa.Fs, outputPath); exists {
|
||||
if !ctx.Bool("force") {
|
||||
return fmt.Errorf("output file %s already exists (use --force to overwrite)", outputPath)
|
||||
}
|
||||
}
|
||||
|
||||
// Open output file
|
||||
outFile, err := mfa.Fs.Create(outputPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to create output file: %w", err)
|
||||
@ -76,10 +84,18 @@ func (mfa *CLIApp) generateManifestOperation(ctx *cli.Context) error {
|
||||
scanProgress = make(chan scanner.ScanStatus, 1)
|
||||
go func() {
|
||||
for status := range scanProgress {
|
||||
log.Progressf("Scanning: %d/%d files, %.1f MB/s",
|
||||
status.ScannedFiles,
|
||||
status.TotalFiles,
|
||||
status.BytesPerSec/1e6)
|
||||
if status.ETA > 0 {
|
||||
log.Progressf("Scanning: %d/%d files, %.1f MB/s, ETA %s",
|
||||
status.ScannedFiles,
|
||||
status.TotalFiles,
|
||||
status.BytesPerSec/1e6,
|
||||
status.ETA.Round(time.Second))
|
||||
} else {
|
||||
log.Progressf("Scanning: %d/%d files, %.1f MB/s",
|
||||
status.ScannedFiles,
|
||||
status.TotalFiles,
|
||||
status.BytesPerSec/1e6)
|
||||
}
|
||||
}
|
||||
log.ProgressDone()
|
||||
}()
|
||||
|
||||
@ -117,10 +117,15 @@ func (mfa *CLIApp) run(args []string) {
|
||||
},
|
||||
&cli.StringFlag{
|
||||
Name: "output",
|
||||
Value: "./index.mf",
|
||||
Value: "./.index.mf",
|
||||
Aliases: []string{"o"},
|
||||
Usage: "Specify output filename",
|
||||
},
|
||||
&cli.BoolFlag{
|
||||
Name: "force",
|
||||
Aliases: []string{"f"},
|
||||
Usage: "Overwrite output file if it exists",
|
||||
},
|
||||
&cli.BoolFlag{
|
||||
Name: "progress",
|
||||
Aliases: []string{"P"},
|
||||
@ -157,6 +162,41 @@ func (mfa *CLIApp) run(args []string) {
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
Name: "freshen",
|
||||
Usage: "Update manifest with changed, new, and removed files",
|
||||
ArgsUsage: "[manifest file]",
|
||||
Action: func(c *cli.Context) error {
|
||||
if !c.Bool("quiet") {
|
||||
mfa.printBanner()
|
||||
}
|
||||
mfa.setVerbosity(verbosity)
|
||||
return mfa.freshenManifestOperation(c)
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
&cli.StringFlag{
|
||||
Name: "base",
|
||||
Aliases: []string{"b"},
|
||||
Value: ".",
|
||||
Usage: "Base directory for resolving relative paths",
|
||||
},
|
||||
&cli.BoolFlag{
|
||||
Name: "FollowSymLinks",
|
||||
Aliases: []string{"follow-symlinks"},
|
||||
Usage: "Resolve encountered symlinks",
|
||||
},
|
||||
&cli.BoolFlag{
|
||||
Name: "IgnoreDotfiles",
|
||||
Aliases: []string{"ignore-dotfiles"},
|
||||
Usage: "Ignore any dot (hidden) files encountered",
|
||||
},
|
||||
&cli.BoolFlag{
|
||||
Name: "progress",
|
||||
Aliases: []string{"P"},
|
||||
Usage: "Show progress during scanning and hashing",
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
Name: "version",
|
||||
Usage: "Show version",
|
||||
|
||||
@ -32,11 +32,12 @@ type EnumerateStatus struct {
|
||||
|
||||
// ScanStatus contains progress information for the scan phase.
|
||||
type ScanStatus struct {
|
||||
TotalFiles int64 // Total number of files to scan
|
||||
ScannedFiles int64 // Number of files scanned so far
|
||||
TotalBytes int64 // Total bytes to read (sum of all file sizes)
|
||||
ScannedBytes int64 // Bytes read so far
|
||||
BytesPerSec float64 // Current throughput rate
|
||||
TotalFiles int64 // Total number of files to scan
|
||||
ScannedFiles int64 // Number of files scanned so far
|
||||
TotalBytes int64 // Total bytes to read (sum of all file sizes)
|
||||
ScannedBytes int64 // Bytes read so far
|
||||
BytesPerSec float64 // Current throughput rate
|
||||
ETA time.Duration // Estimated time to completion
|
||||
}
|
||||
|
||||
// Options configures scanner behavior.
|
||||
@ -177,6 +178,31 @@ func (s *Scanner) enumerateFileWithInfo(filePath string, basePath string, info f
|
||||
// Compute absolute path for file reading
|
||||
absPath := filepath.Join(basePath, cleanPath)
|
||||
|
||||
// Handle symlinks
|
||||
if info.Mode()&fs.ModeSymlink != 0 {
|
||||
if !s.options.FollowSymLinks {
|
||||
// Skip symlinks when not following them
|
||||
return nil
|
||||
}
|
||||
// Resolve symlink to get real file info
|
||||
realPath, err := filepath.EvalSymlinks(absPath)
|
||||
if err != nil {
|
||||
// Skip broken symlinks
|
||||
return nil
|
||||
}
|
||||
realInfo, err := s.fs.Stat(realPath)
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
// Skip if symlink points to a directory
|
||||
if realInfo.IsDir() {
|
||||
return nil
|
||||
}
|
||||
// Use resolved path for reading, but keep original path in manifest
|
||||
absPath = realPath
|
||||
info = realInfo
|
||||
}
|
||||
|
||||
entry := &FileEntry{
|
||||
Path: cleanPath,
|
||||
AbsPath: absPath,
|
||||
@ -270,34 +296,58 @@ func (s *Scanner) ToManifest(ctx context.Context, w io.Writer, progress chan<- S
|
||||
return err
|
||||
}
|
||||
|
||||
// Add to manifest with progress callback
|
||||
// Create progress channel for this file
|
||||
var fileProgress chan mfer.FileHashProgress
|
||||
var wg sync.WaitGroup
|
||||
if progress != nil {
|
||||
fileProgress = make(chan mfer.FileHashProgress, 1)
|
||||
wg.Add(1)
|
||||
go func(baseScannedBytes int64) {
|
||||
defer wg.Done()
|
||||
for p := range fileProgress {
|
||||
// Send progress at most once per second
|
||||
now := time.Now()
|
||||
if now.Sub(lastProgressTime) >= time.Second {
|
||||
elapsed := now.Sub(startTime).Seconds()
|
||||
currentBytes := baseScannedBytes + p.BytesRead
|
||||
var rate float64
|
||||
var eta time.Duration
|
||||
if elapsed > 0 && currentBytes > 0 {
|
||||
rate = float64(currentBytes) / elapsed
|
||||
remainingBytes := totalBytes - currentBytes
|
||||
if rate > 0 {
|
||||
eta = time.Duration(float64(remainingBytes)/rate) * time.Second
|
||||
}
|
||||
}
|
||||
sendScanStatus(progress, ScanStatus{
|
||||
TotalFiles: totalFiles,
|
||||
ScannedFiles: scannedFiles,
|
||||
TotalBytes: totalBytes,
|
||||
ScannedBytes: currentBytes,
|
||||
BytesPerSec: rate,
|
||||
ETA: eta,
|
||||
})
|
||||
lastProgressTime = now
|
||||
}
|
||||
}
|
||||
}(scannedBytes)
|
||||
}
|
||||
|
||||
// Add to manifest with progress channel
|
||||
bytesRead, err := builder.AddFile(
|
||||
entry.Path,
|
||||
entry.Size,
|
||||
entry.Mtime,
|
||||
f,
|
||||
func(fileBytes int64) {
|
||||
// Send progress at most once per second
|
||||
now := time.Now()
|
||||
if progress != nil && now.Sub(lastProgressTime) >= time.Second {
|
||||
elapsed := now.Sub(startTime).Seconds()
|
||||
currentBytes := scannedBytes + fileBytes
|
||||
var rate float64
|
||||
if elapsed > 0 {
|
||||
rate = float64(currentBytes) / elapsed
|
||||
}
|
||||
sendScanStatus(progress, ScanStatus{
|
||||
TotalFiles: totalFiles,
|
||||
ScannedFiles: scannedFiles,
|
||||
TotalBytes: totalBytes,
|
||||
ScannedBytes: currentBytes,
|
||||
BytesPerSec: rate,
|
||||
})
|
||||
lastProgressTime = now
|
||||
}
|
||||
},
|
||||
fileProgress,
|
||||
)
|
||||
f.Close()
|
||||
_ = f.Close()
|
||||
|
||||
// Close channel and wait for goroutine to finish
|
||||
if fileProgress != nil {
|
||||
close(fileProgress)
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
@ -307,7 +357,7 @@ func (s *Scanner) ToManifest(ctx context.Context, w io.Writer, progress chan<- S
|
||||
scannedBytes += bytesRead
|
||||
}
|
||||
|
||||
// Send final progress
|
||||
// Send final progress (ETA is 0 at completion)
|
||||
if progress != nil {
|
||||
elapsed := time.Since(startTime).Seconds()
|
||||
var rate float64
|
||||
@ -320,6 +370,7 @@ func (s *Scanner) ToManifest(ctx context.Context, w io.Writer, progress chan<- S
|
||||
TotalBytes: totalBytes,
|
||||
ScannedBytes: scannedBytes,
|
||||
BytesPerSec: rate,
|
||||
ETA: 0,
|
||||
})
|
||||
}
|
||||
|
||||
|
||||
@ -9,8 +9,10 @@ import (
|
||||
"github.com/multiformats/go-multihash"
|
||||
)
|
||||
|
||||
// FileProgress is called during file processing to report bytes read.
|
||||
type FileProgress func(bytesRead int64)
|
||||
// FileHashProgress reports progress during file hashing.
|
||||
type FileHashProgress struct {
|
||||
BytesRead int64 // Total bytes read so far for the current file
|
||||
}
|
||||
|
||||
// Builder constructs a manifest by adding files one at a time.
|
||||
type Builder struct {
|
||||
@ -28,14 +30,14 @@ func NewBuilder() *Builder {
|
||||
}
|
||||
|
||||
// AddFile reads file content from reader, computes hashes, and adds to manifest.
|
||||
// The progress callback is called periodically with total bytes read so far.
|
||||
// Progress updates are sent to the progress channel (if non-nil) without blocking.
|
||||
// Returns the number of bytes read.
|
||||
func (b *Builder) AddFile(
|
||||
path string,
|
||||
size int64,
|
||||
mtime time.Time,
|
||||
reader io.Reader,
|
||||
progress FileProgress,
|
||||
progress chan<- FileHashProgress,
|
||||
) (int64, error) {
|
||||
// Create hash writer
|
||||
h := sha256.New()
|
||||
@ -49,9 +51,7 @@ func (b *Builder) AddFile(
|
||||
if n > 0 {
|
||||
h.Write(buf[:n])
|
||||
totalRead += int64(n)
|
||||
if progress != nil {
|
||||
progress(totalRead)
|
||||
}
|
||||
sendFileHashProgress(progress, FileHashProgress{BytesRead: totalRead})
|
||||
}
|
||||
if err == io.EOF {
|
||||
break
|
||||
@ -84,6 +84,17 @@ func (b *Builder) AddFile(
|
||||
return totalRead, nil
|
||||
}
|
||||
|
||||
// sendFileHashProgress sends a progress update without blocking.
|
||||
func sendFileHashProgress(ch chan<- FileHashProgress, p FileHashProgress) {
|
||||
if ch == nil {
|
||||
return
|
||||
}
|
||||
select {
|
||||
case ch <- p:
|
||||
default:
|
||||
}
|
||||
}
|
||||
|
||||
// FileCount returns the number of files added to the builder.
|
||||
func (b *Builder) FileCount() int {
|
||||
b.mu.Lock()
|
||||
@ -91,6 +102,23 @@ func (b *Builder) FileCount() int {
|
||||
return len(b.files)
|
||||
}
|
||||
|
||||
// AddFileWithHash adds a file entry with a pre-computed hash.
|
||||
// This is useful when the hash is already known (e.g., from an existing manifest).
|
||||
func (b *Builder) AddFileWithHash(path string, size int64, mtime time.Time, hash []byte) {
|
||||
entry := &MFFilePath{
|
||||
Path: path,
|
||||
Size: size,
|
||||
Hashes: []*MFFileChecksum{
|
||||
{MultiHash: hash},
|
||||
},
|
||||
Mtime: newTimestampFromTime(mtime),
|
||||
}
|
||||
|
||||
b.mu.Lock()
|
||||
b.files = append(b.files, entry)
|
||||
b.mu.Unlock()
|
||||
}
|
||||
|
||||
// Build finalizes the manifest and writes it to the writer.
|
||||
func (b *Builder) Build(w io.Writer) error {
|
||||
b.mu.Lock()
|
||||
|
||||
Loading…
Reference in New Issue
Block a user