472221a7f6
- Add 'mfer export' command: dumps manifest as JSON to stdout for piping to jq etc - Add HTTP/HTTPS URL support for manifest path arguments (check, list, export) - Enable --version flag (was hidden, now shown) - Audit all error messages: wrap with fmt.Errorf context throughout CLI and library - Add tests for export command and URL-based manifest loading - Add manifest_loader.go with shared resolveManifestArg and openManifestReader helpers
73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
package cli
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import (
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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/v2"
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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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}
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func (mfa *CLIApp) exportManifestOperation(ctx *cli.Context) error {
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pathOrURL, err := mfa.resolveManifestArg(ctx)
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if err != nil {
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return fmt.Errorf("export: %w", err)
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}
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rc, err := mfa.openManifestReader(pathOrURL)
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if err != nil {
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return fmt.Errorf("export: %w", 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("export: failed to 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.Path,
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Size: f.Size,
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Hashes: make([]string, 0, len(f.Hashes)),
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}
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for _, h := range f.Hashes {
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entry.Hashes = append(entry.Hashes, hex.EncodeToString(h.MultiHash))
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}
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if f.Mtime != nil {
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t := time.Unix(f.Mtime.Seconds, int64(f.Mtime.Nanos)).UTC().Format(time.RFC3339Nano)
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entry.Mtime = &t
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}
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if f.Ctime != nil {
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t := time.Unix(f.Ctime.Seconds, int64(f.Ctime.Nanos)).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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if err := enc.Encode(entries); err != nil {
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return fmt.Errorf("export: failed to encode JSON: %w", err)
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}
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return nil
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}
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