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Refactor and tidy-up the merge/update branch code (#22568)

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The merge and update branch code was previously a little tangled and had
some very long functions. The functions were not very clear in their
reasoning and there were deficiencies in their logging and at least one
bug in the handling of LFS for update by rebase.

This PR substantially refactors this code and splits things out to into
separate functions. It also attempts to tidy up the calls by wrapping
things in "context"s. There are also attempts to improve logging when
there are errors.

Signed-off-by: Andrew Thornton <[email protected]>

---------

Signed-off-by: Andrew Thornton <[email protected]>
Co-authored-by: techknowlogick <[email protected]>
Co-authored-by: delvh <[email protected]>
This commit is contained in:
zeripath
2023-03-07 15:07:35 -05:00
committed by GitHub
co-authored by techknowlogick delvh
parent a2f44463f0
commit 8598356df1
12 changed files with 760 additions and 610 deletions
Download Patch File Download Diff File Expand all files Collapse all files
services/pull/patch.go
+6 -11
View File
@@ -22,7 +22,6 @@ import (
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
@@ -64,25 +63,21 @@ func TestPatch(pr *issues_model.PullRequest) error {
defer finished()
// Clone base repo.
tmpBasePath, err := createTemporaryRepo(ctx, pr)
prCtx, cancel, err := createTemporaryRepoForPR(ctx, pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
log.Error("createTemporaryRepoForPR %-v: %v", pr, err)
return err
}
defer func() {
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
defer cancel()
gitRepo, err := git.OpenRepository(ctx, tmpBasePath)
gitRepo, err := git.OpenRepository(ctx, prCtx.tmpBasePath)
if err != nil {
return fmt.Errorf("OpenRepository: %w", err)
}
defer gitRepo.Close()
// 1. update merge base
pr.MergeBase, _, err = git.NewCommand(ctx, "merge-base", "--", "base", "tracking").RunStdString(&git.RunOpts{Dir: tmpBasePath})
pr.MergeBase, _, err = git.NewCommand(ctx, "merge-base", "--", "base", "tracking").RunStdString(&git.RunOpts{Dir: prCtx.tmpBasePath})
if err != nil {
var err2 error
pr.MergeBase, err2 = gitRepo.GetRefCommitID(git.BranchPrefix + "base")
@@ -101,7 +96,7 @@ func TestPatch(pr *issues_model.PullRequest) error {
}
// 2. Check for conflicts
if conflicts, err := checkConflicts(ctx, pr, gitRepo, tmpBasePath); err != nil || conflicts || pr.Status == issues_model.PullRequestStatusEmpty {
if conflicts, err := checkConflicts(ctx, pr, gitRepo, prCtx.tmpBasePath); err != nil || conflicts || pr.Status == issues_model.PullRequestStatusEmpty {
return err
}