Fix archive creating LFS hooks and breaking pull requests (#28848) (#28851)

Backport #28848 by @brechtvl

When LFS hooks are present in gitea-repositories, operations like git
push for creating a pull request fail. These repositories are not meant
to include LFS files or git push them, that is handled separately. And
so they should not have LFS hooks.

Installing git-lfs on some systems (like Debian Linux) will
automatically set up /etc/gitconfig to create LFS hooks in repositories.
For most git commands in Gitea this is not a problem, either because
they run on a temporary clone or the git command does not create LFS
hooks.

But one case where this happens is git archive for creating repository
archives. To fix that, add a GIT_CONFIG_NOSYSTEM=1 to disable using the
system configuration for that command.

According to a comment, GIT_CONFIG_NOSYSTEM is not used for all git
commands because the system configuration can be intentionally set up
for Gitea to use.

Resolves #19810, #21148

Co-authored-by: Brecht Van Lommel <brecht@blender.org>
(cherry picked from commit 0d50f27469)
This commit is contained in:
Giteabot 2024-01-21 22:43:31 +08:00 committed by Earl Warren
parent 54a6dc73ef
commit 7db542a029
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@ -8,6 +8,7 @@ import (
"context" "context"
"fmt" "fmt"
"io" "io"
"os"
"path/filepath" "path/filepath"
"strings" "strings"
) )
@ -62,11 +63,15 @@ func (repo *Repository) CreateArchive(ctx context.Context, format ArchiveType, t
cmd.AddOptionFormat("--format=%s", format.String()) cmd.AddOptionFormat("--format=%s", format.String())
cmd.AddDynamicArguments(commitID) cmd.AddDynamicArguments(commitID)
// Avoid LFS hooks getting installed because of /etc/gitconfig, which can break pull requests.
env := append(os.Environ(), "GIT_CONFIG_NOSYSTEM=1")
var stderr strings.Builder var stderr strings.Builder
err := cmd.Run(&RunOpts{ err := cmd.Run(&RunOpts{
Dir: repo.Path, Dir: repo.Path,
Stdout: target, Stdout: target,
Stderr: &stderr, Stderr: &stderr,
Env: env,
}) })
if err != nil { if err != nil {
return ConcatenateError(err, stderr.String()) return ConcatenateError(err, stderr.String())