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Generate Diff and Patch direct from Pull head (#10936)

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* Generate Diff and Patch direct from Pull head

Fix #10932
Also fix "Empty Diff/Patch File when pull is merged"

Closes #10934

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Add tests to ensure that diff does not change

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Ensure diffs and pulls pages work if head branch is deleted too

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2020-04-03 14:21:41 +01:00 • committed by GitHub
parent f685edf510
commit 57cca44c5e
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 70 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

21
services/pull/patch.go
View file

@ -21,30 +21,17 @@ import (
// DownloadDiffOrPatch will write the patch for the pr to the writer
func DownloadDiffOrPatch(pr *models.PullRequest, w io.Writer, patch bool) error {
// Clone base repo.
tmpBasePath, err := createTemporaryRepo(pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
if err := pr.LoadBaseRepo(); err != nil {
log.Error("Unable to load base repository ID %d for pr #%d [%d]", pr.BaseRepoID, pr.Index, pr.ID)
return err
}
defer func() {
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("DownloadDiff: RemoveTemporaryPath: %s", err)
}
}()
gitRepo, err := git.OpenRepository(tmpBasePath)
gitRepo, err := git.OpenRepository(pr.BaseRepo.RepoPath())
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
pr.MergeBase, err = git.NewCommand("merge-base", "--", "base", "tracking").RunInDir(tmpBasePath)
if err != nil {
pr.MergeBase = "base"
}
pr.MergeBase = strings.TrimSpace(pr.MergeBase)
if err := gitRepo.GetDiffOrPatch(pr.MergeBase, "tracking", w, patch); err != nil {
if err := gitRepo.GetDiffOrPatch(pr.MergeBase, pr.GetGitRefName(), w, patch); err != nil {
log.Error("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
return fmt.Errorf("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
}