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Revert "avoid superfluous synchronized pull_request run when opening a PR"

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The fix against the race incorrectly assumes the sha of the commit being
pushed belongs to the base repository. It finds the highest possible
pull request ID from the head repository instead of looking it up in
the base repository.

Figuring out if a PR was created in the future based on the highest
index of the base repository would require collecting all of them
because there is no way to know in advance which repository may be
involved in the race.

Fixing this race can be done either by:

* Introducing a new field in the pull_request table https://codeberg.org/forgejo/forgejo/pulls/2842
  which feels more like a hack than a real solution
* Refactoring the logic
  which would be a significant undertaking

The race has been in the codebase for a very long time and manifests
itself in the CI, when events happen in quick succession. The only
concrete manifestation was however fixed by https://codeberg.org/forgejo/forgejo/issues/2009

Since this race now only exists in theory and not in practice, let's
revert this bugous commit until a proper solution is implemented.

Fixes: https://codeberg.org/forgejo/forgejo/issues/2817

This reverts commit 036f1eddc5.

Conflicts:
	services/pull/pull.go
This commit is contained in:
Earl Warren 2024-03-26 13:40:12 +01:00
parent 57e7650d70
commit ceea9c4334
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GPG key ID: 0579CB2928A78A00
9 changed files with 94 additions and 336 deletions
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12
models/issues/issue_index.go
View file

@ -9,14 +9,6 @@ import (
"code.gitea.io/gitea/models/db"
)
func GetMaxIssueIndexForRepo(ctx context.Context, repoID int64) (int64, error) {
var max int64
if _, err := db.GetEngine(ctx).Select("MAX(`index`)").Table("issue").Where("repo_id=?", repoID).Get(&max); err != nil {
return 0, err
}
return max, nil
}
// RecalculateIssueIndexForRepo create issue_index for repo if not exist and
// update it based on highest index of existing issues assigned to a repo
func RecalculateIssueIndexForRepo(ctx context.Context, repoID int64) error {
@ -26,8 +18,8 @@ func RecalculateIssueIndexForRepo(ctx context.Context, repoID int64) error {
}
defer committer.Close()
max, err := GetMaxIssueIndexForRepo(ctx, repoID)
if err != nil {
var max int64
if _, err = db.GetEngine(ctx).Select(" MAX(`index`)").Table("issue").Where("repo_id=?", repoID).Get(&max); err != nil {
return err
}