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

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
This commit is contained in:
Brecht Van Lommel 2024-01-19 06:49:18 +01:00 committed by GitHub
parent b60a7c3358
commit 1167d523c4
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@ -8,6 +8,7 @@ import (
"context"
"fmt"
"io"
"os"
"path/filepath"
"strings"
)
@ -62,11 +63,15 @@ func (repo *Repository) CreateArchive(ctx context.Context, format ArchiveType, t
cmd.AddOptionFormat("--format=%s", format.String())
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
err := cmd.Run(&RunOpts{
Dir: repo.Path,
Stdout: target,
Stderr: &stderr,
Env: env,
})
if err != nil {
return ConcatenateError(err, stderr.String())