Fix GetFilesChangedBetween if the file name may be escaped (#23272) (#23279)

Backport #23272

The code for GetFilesChangedBetween uses `git diff --name-only
base..head` to get the names of files changed between base and head
however this forgets that git will escape certain values.

This PR simply switches to use `-z` which has the `NUL` character as the
separator.

Ref https://github.com/go-gitea/gitea/pull/22568#discussion_r1123138096

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
This commit is contained in:
Giteabot 2023-03-04 00:38:31 -05:00 committed by GitHub
parent 1322cd7a58
commit 781019216c
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@ -277,11 +277,18 @@ func (repo *Repository) GetPatch(base, head string, w io.Writer) error {
// GetFilesChangedBetween returns a list of all files that have been changed between the given commits
func (repo *Repository) GetFilesChangedBetween(base, head string) ([]string, error) {
stdout, _, err := NewCommand(repo.Ctx, "diff", "--name-only").AddDynamicArguments(base + ".." + head).RunStdString(&RunOpts{Dir: repo.Path})
stdout, _, err := NewCommand(repo.Ctx, "diff", "--name-only", "-z").AddDynamicArguments(base + ".." + head).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
return strings.Split(stdout, "\n"), err
split := strings.Split(stdout, "\000")
// Because Git will always emit filenames with a terminal NUL ignore the last entry in the split - which will always be empty.
if len(split) > 0 {
split = split[:len(split)-1]
}
return split, err
}
// GetDiffFromMergeBase generates and return patch data from merge base to head