vaultik/internal/storage/s3.go
sneak badc0c07e0 Add pluggable storage backend, PID locking, and improved scan progress
Storage backend:
- Add internal/storage package with Storer interface
- Implement FileStorer for local filesystem storage (file:// URLs)
- Implement S3Storer wrapping existing s3.Client
- Support storage_url config field (s3:// or file://)
- Migrate all consumers to use storage.Storer interface

PID locking:
- Add internal/pidlock package to prevent concurrent instances
- Acquire lock before app start, release on exit
- Detect stale locks from crashed processes

Scan progress improvements:
- Add fast file enumeration pass before stat() phase
- Use enumerated set for deletion detection (no extra filesystem access)
- Show progress with percentage, files/sec, elapsed time, and ETA
- Change "changed" to "changed/new" for clarity

Config improvements:
- Add tilde expansion for paths (~/)
- Use xdg library for platform-specific default index path
2025-12-19 11:52:51 +07:00

86 lines
2.3 KiB
Go

package storage
import (
"context"
"fmt"
"io"
"git.eeqj.de/sneak/vaultik/internal/s3"
)
// S3Storer wraps the existing s3.Client to implement Storer.
type S3Storer struct {
client *s3.Client
}
// NewS3Storer creates a new S3 storage backend.
func NewS3Storer(client *s3.Client) *S3Storer {
return &S3Storer{client: client}
}
// Put stores data at the specified key.
func (s *S3Storer) Put(ctx context.Context, key string, data io.Reader) error {
return s.client.PutObject(ctx, key, data)
}
// PutWithProgress stores data with progress reporting.
func (s *S3Storer) PutWithProgress(ctx context.Context, key string, data io.Reader, size int64, progress ProgressCallback) error {
// Convert storage.ProgressCallback to s3.ProgressCallback
var s3Progress s3.ProgressCallback
if progress != nil {
s3Progress = s3.ProgressCallback(progress)
}
return s.client.PutObjectWithProgress(ctx, key, data, size, s3Progress)
}
// Get retrieves data from the specified key.
func (s *S3Storer) Get(ctx context.Context, key string) (io.ReadCloser, error) {
return s.client.GetObject(ctx, key)
}
// Stat returns metadata about an object without retrieving its contents.
func (s *S3Storer) Stat(ctx context.Context, key string) (*ObjectInfo, error) {
info, err := s.client.StatObject(ctx, key)
if err != nil {
return nil, err
}
return &ObjectInfo{
Key: info.Key,
Size: info.Size,
}, nil
}
// Delete removes an object.
func (s *S3Storer) Delete(ctx context.Context, key string) error {
return s.client.DeleteObject(ctx, key)
}
// List returns all keys with the given prefix.
func (s *S3Storer) List(ctx context.Context, prefix string) ([]string, error) {
return s.client.ListObjects(ctx, prefix)
}
// ListStream returns a channel of ObjectInfo for large result sets.
func (s *S3Storer) ListStream(ctx context.Context, prefix string) <-chan ObjectInfo {
ch := make(chan ObjectInfo)
go func() {
defer close(ch)
for info := range s.client.ListObjectsStream(ctx, prefix, false) {
ch <- ObjectInfo{
Key: info.Key,
Size: info.Size,
Err: info.Err,
}
}
}()
return ch
}
// Info returns human-readable storage location information.
func (s *S3Storer) Info() StorageInfo {
return StorageInfo{
Type: "s3",
Location: fmt.Sprintf("%s/%s", s.client.Endpoint(), s.client.BucketName()),
}
}