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Ensure rejected push to refs/pull/index/head fails nicely (#11724)

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A pre-receive hook that rejects pushes to refs/pull/index/head
will cause a broken PR which causes an internal server error
whenever it is viewed. This PR handles prevents the internal server
error by handling non-existent pr heads and sends a flash error
informing the creator there was a problem.

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2020-06-08 19:07:41 +01:00 • committed by GitHub
parent 5814079bf5
commit 09f7d84f4c
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2 changed files with 37 additions and 5 deletions
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10
services/pull/pull.go
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@ -443,6 +443,16 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
// Use InternalPushingEnvironment here because we know that pre-receive and post-receive do not run on a refs/pulls/...
Env: models.InternalPushingEnvironment(pr.Issue.Poster, pr.BaseRepo),
}); err != nil {
if git.IsErrPushOutOfDate(err) {
// This should not happen as we're using force!
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to ErrPushOfDate: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, err)
return err
} else if git.IsErrPushRejected(err) {
rejectErr := err.(*git.ErrPushRejected)
log.Info("Unable to push PR head for %s#%d (%-v:%s) due to rejection:\nStdout: %s\nStderr: %s\nError: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, rejectErr.StdOut, rejectErr.StdErr, rejectErr.Err)
return err
}
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to Error: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, err)
return fmt.Errorf("Push: %s:%s %s:%s %v", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), headFile, err)
}