83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
package cli
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import (
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"context"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"time"
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"github.com/urfave/cli/v3"
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"sneak.berlin/go/mfer/mfer"
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)
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// ExportEntry represents a single file entry in the exported JSON output.
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type ExportEntry struct {
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Path string `json:"path"`
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Size int64 `json:"size"`
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Hashes []string `json:"hashes"`
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Mtime *string `json:"mtime,omitempty"`
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Ctime *string `json:"ctime,omitempty"`
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Mode string `json:"mode"` // octal, "0000" when none was recorded
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}
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func (mfa *CLIApp) exportManifestOperation(
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ctx context.Context, cmd *cli.Command,
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) error {
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pathOrURL, err := mfa.resolveManifestArg(cmd)
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if err != nil {
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return err
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}
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rc, err := mfa.openManifestReader(ctx, pathOrURL)
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if err != nil {
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return err
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}
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defer func() { _ = rc.Close() }()
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manifest, err := mfer.NewManifestFromReader(rc)
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if err != nil {
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return fmt.Errorf("parse manifest: %w", err)
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}
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files := manifest.Files()
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entries := make([]ExportEntry, 0, len(files))
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for _, f := range files {
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entry := ExportEntry{
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Path: f.GetPath(),
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Size: f.GetSize(),
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Hashes: make([]string, 0, len(f.GetHashes())),
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Mode: fmt.Sprintf("%04o", f.GetMode()),
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}
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for _, h := range f.GetHashes() {
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entry.Hashes = append(entry.Hashes, hex.EncodeToString(h.GetMultiHash()))
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}
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if mtime, ok := entryMtime(f); ok {
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t := mtime.UTC().Format(time.RFC3339Nano)
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entry.Mtime = &t
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}
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if f.GetCtime() != nil {
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t := time.Unix(f.GetCtime().GetSeconds(), int64(f.GetCtime().GetNanos())).
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UTC().Format(time.RFC3339Nano)
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entry.Ctime = &t
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}
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entries = append(entries, entry)
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}
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enc := json.NewEncoder(mfa.Stdout)
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enc.SetIndent("", " ")
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err = enc.Encode(entries)
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if err != nil {
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return fmt.Errorf("encode JSON: %w", err)
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}
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return nil
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}
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