fix(asymkey): do not verify OpenPGP signatures with an SSH instance key, require git 2.18 (#39073)

With SIGNING_FORMAT = ssh the OpenPGP verification path builds its
GPGSettings from the instance signing key but leaves the format empty,
so it runs `gpg -a --export` on an SSH public key path. Depending on the
local gpg setup that either exports nothing, so an OpenPGP signed commit
reports gpg.error.generate_hash instead of a missing key, or it fails
outright and logs an export error for every such commit.

Both guards are needed. The first covers SIGNING_KEY set to a path with
SIGNING_FORMAT=ssh; the second covers the shipped default
SIGNING_KEY=default, where the format comes from git's own gpg.format
and never gets reconciled with the hardcoded "openpgp". Drop either one
and a working config goes back to broken.

Also raise minimum git version to 2.18 which was already required before this change.

Fixes: https://github.com/go-gitea/gitea/issues/37452
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Artem Lytkin
2026-08-25 15:02:31 +03:00
committed by GitHub
parent d17ccd4434
commit c8660364d9
9 changed files with 184 additions and 181 deletions
+2 -5
View File
@@ -11,12 +11,9 @@ import (
)
// WriteCommitGraph write commit graph to speed up repo access
// this requires git v2.18 to be installed
func WriteCommitGraph(ctx context.Context, repo RepositoryFacade) error {
if DefaultFeatures().CheckVersionAtLeast("2.18") {
if _, _, err := gitcmd.NewCommand("commit-graph", "write").WithRepo(repo).RunStdString(ctx); err != nil {
return fmt.Errorf("unable to write commit-graph for '%s' : %w", repo.GitRepoLocation(), err)
}
if _, _, err := gitcmd.NewCommand("commit-graph", "write").WithRepo(repo).RunStdString(ctx); err != nil {
return fmt.Errorf("unable to write commit-graph for '%s' : %w", repo.GitRepoLocation(), err)
}
return nil
}