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Set correct PR status on 3way on conflict checking (#19457) (#19458)

- Backport #19457
  - When 3-way merge is enabled for conflict checking, it has a new interesting behavior that it doesn't return any error when it found a conflict, so we change the condition to not check for the error, but instead check if conflictedfiles is populated, this fixes a issue whereby PR status wasn't correctly on conflicted PR's.
  - Refactor the mergeable property(which was incorrectly set and lead me this bug) to be more maintainable.
  - Add a dedicated test for conflicting checking, so it should prevent future issues with this.
  - Ref: Fix the latest error for https://gitea.com/gitea/go-sdk/pulls/579

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
Gusted 2022-04-22 01:11:42 +00:00 committed by GitHub
parent 297346a762
commit 09adc26eb6
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4 changed files with 93 additions and 10 deletions

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@ -25,6 +25,8 @@ import (
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/test"
"code.gitea.io/gitea/services/pull"
repo_service "code.gitea.io/gitea/services/repository"
files_service "code.gitea.io/gitea/services/repository/files"
"github.com/stretchr/testify/assert"
"github.com/unknwon/i18n"
@ -65,7 +67,7 @@ func testPullCleanUp(t *testing.T, session *TestSession, user, repo, pullnum str
func TestPullMerge(t *testing.T) {
onGiteaRun(t, func(t *testing.T, giteaURL *url.URL) {
hookTasks, err := webhook.HookTasks(1, 1) //Retrieve previous hook number
hookTasks, err := webhook.HookTasks(1, 1) // Retrieve previous hook number
assert.NoError(t, err)
hookTasksLenBefore := len(hookTasks)
@ -87,7 +89,7 @@ func TestPullMerge(t *testing.T) {
func TestPullRebase(t *testing.T) {
onGiteaRun(t, func(t *testing.T, giteaURL *url.URL) {
hookTasks, err := webhook.HookTasks(1, 1) //Retrieve previous hook number
hookTasks, err := webhook.HookTasks(1, 1) // Retrieve previous hook number
assert.NoError(t, err)
hookTasksLenBefore := len(hookTasks)
@ -109,7 +111,7 @@ func TestPullRebase(t *testing.T) {
func TestPullRebaseMerge(t *testing.T) {
onGiteaRun(t, func(t *testing.T, giteaURL *url.URL) {
hookTasks, err := webhook.HookTasks(1, 1) //Retrieve previous hook number
hookTasks, err := webhook.HookTasks(1, 1) // Retrieve previous hook number
assert.NoError(t, err)
hookTasksLenBefore := len(hookTasks)
@ -131,7 +133,7 @@ func TestPullRebaseMerge(t *testing.T) {
func TestPullSquash(t *testing.T) {
onGiteaRun(t, func(t *testing.T, giteaURL *url.URL) {
hookTasks, err := webhook.HookTasks(1, 1) //Retrieve previous hook number
hookTasks, err := webhook.HookTasks(1, 1) // Retrieve previous hook number
assert.NoError(t, err)
hookTasksLenBefore := len(hookTasks)
@ -335,3 +337,74 @@ func TestCantMergeUnrelated(t *testing.T) {
gitRepo.Close()
})
}
func TestConflictChecking(t *testing.T) {
onGiteaRun(t, func(t *testing.T, giteaURL *url.URL) {
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
// Create new clean repo to test conflict checking.
baseRepo, err := repo_service.CreateRepository(user, user, models.CreateRepoOptions{
Name: "conflict-checking",
Description: "Tempo repo",
AutoInit: true,
Readme: "Default",
DefaultBranch: "main",
})
assert.NoError(t, err)
assert.NotEmpty(t, baseRepo)
// create a commit on new branch.
_, err = files_service.CreateOrUpdateRepoFile(baseRepo, user, &files_service.UpdateRepoFileOptions{
TreePath: "important_file",
Message: "Add a important file",
Content: "Just a non-important file",
IsNewFile: true,
OldBranch: "main",
NewBranch: "important-secrets",
})
assert.NoError(t, err)
// create a commit on main branch.
_, err = files_service.CreateOrUpdateRepoFile(baseRepo, user, &files_service.UpdateRepoFileOptions{
TreePath: "important_file",
Message: "Add a important file",
Content: "Not the same content :P",
IsNewFile: true,
OldBranch: "main",
NewBranch: "main",
})
assert.NoError(t, err)
// create Pull to merge the important-secrets branch into main branch.
pullIssue := &models.Issue{
RepoID: baseRepo.ID,
Title: "PR with conflict!",
PosterID: user.ID,
Poster: user,
IsPull: true,
}
pullRequest := &models.PullRequest{
HeadRepoID: baseRepo.ID,
BaseRepoID: baseRepo.ID,
HeadBranch: "important-secrets",
BaseBranch: "main",
HeadRepo: baseRepo,
BaseRepo: baseRepo,
Type: models.PullRequestGitea,
}
err = pull.NewPullRequest(baseRepo, pullIssue, nil, nil, pullRequest, nil)
assert.NoError(t, err)
issue := unittest.AssertExistsAndLoadBean(t, &models.Issue{Title: "PR with conflict!"}).(*models.Issue)
conflictingPR, err := models.GetPullRequestByIssueID(issue.ID)
assert.NoError(t, err)
// Ensure conflictedFiles is populated.
assert.Equal(t, 1, len(conflictingPR.ConflictedFiles))
// Check if status is correct.
assert.Equal(t, models.PullRequestStatusConflict, conflictingPR.Status)
// Ensure that mergeable returns false
assert.False(t, conflictingPR.Mergeable())
})
}

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@ -697,3 +697,14 @@ func (pr *PullRequest) GetHeadBranchHTMLURL() string {
}
return pr.HeadRepo.HTMLURL() + "/src/branch/" + util.PathEscapeSegments(pr.HeadBranch)
}
// Mergeable returns if the pullrequest is mergeable.
func (pr *PullRequest) Mergeable() bool {
// If a pull request isn't mergable if it's:
// - Being conflict checked.
// - Has a conflict.
// - Received a error while being conflict checked.
// - Is a work-in-progress pull request.
return pr.Status != PullRequestStatusChecking && pr.Status != PullRequestStatusConflict &&
pr.Status != PullRequestStatusError && !pr.IsWorkInProgress()
}

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@ -67,6 +67,7 @@ func ToAPIPullRequest(pr *models.PullRequest, doer *user_model.User) *api.PullRe
PatchURL: pr.Issue.PatchURL(),
HasMerged: pr.HasMerged,
MergeBase: pr.MergeBase,
Mergeable: pr.Mergeable(),
Deadline: apiIssue.Deadline,
Created: pr.Issue.CreatedUnix.AsTimePtr(),
Updated: pr.Issue.UpdatedUnix.AsTimePtr(),
@ -190,10 +191,6 @@ func ToAPIPullRequest(pr *models.PullRequest, doer *user_model.User) *api.PullRe
}
}
if pr.Status != models.PullRequestStatusChecking {
mergeable := !(pr.Status == models.PullRequestStatusConflict || pr.Status == models.PullRequestStatusError) && !pr.IsWorkInProgress()
apiPullRequest.Mergeable = mergeable
}
if pr.HasMerged {
apiPullRequest.Merged = pr.MergedUnix.AsTimePtr()
apiPullRequest.MergedCommitID = &pr.MergedCommitID

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@ -431,14 +431,16 @@ func checkConflicts(pr *models.PullRequest, gitRepo *git.Repository, tmpBasePath
return nil
})
// 8. If there is a conflict the `git apply` command will return a non-zero error code - so there will be a positive error.
if err != nil {
// 9. Check if the found conflictedfiles is non-zero, "err" could be non-nil, so we should ignore it if we found conflicts.
// Note: `"err" could be non-nil` is due that if enable 3-way merge, it doesn't return any error on found conflicts.
if len(pr.ConflictedFiles) > 0 {
if conflict {
pr.Status = models.PullRequestStatusConflict
log.Trace("Found %d files conflicted: %v", len(pr.ConflictedFiles), pr.ConflictedFiles)
return true, nil
}
} else if err != nil {
return false, fmt.Errorf("git apply --check: %v", err)
}
return false, nil