Files
mfer/internal/cli/export.go
T
clawbot 293521eeab
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Sign and verify manifests in Go with OpenPGP instead of running gpg (closes #181)
mfer ran the gpg binary to sign, export keys and verify, so it failed
wherever gpg is missing. It now uses github.com/ProtonMail/go-crypto/openpgp.
--sign-key and MFER_SIGN_KEY name a file holding one version 4 OpenPGP
secret key; a protected key's passphrase comes from
MFER_SIGN_KEY_PASSPHRASE or a terminal prompt. gen and freshen check that
the key can sign before they read any file. Verification keeps the rules
of the --require-signature fix: one primary key in the embedded block,
counted from its packets, exactly one signature, made by that key or a
subkey, and signer equal to its fingerprint. The embedded block may hold
no DSA key and no secret key, and an armored field must be one
well-formed block.

Model: opus-5-5
2026-10-08 06:54:26 +00:00

83 lines
1.7 KiB
Go

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