449 lines
13 KiB
Go
449 lines
13 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package pull
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/graceful"
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/notification"
|
|
issue_service "code.gitea.io/gitea/services/issue"
|
|
|
|
"github.com/unknwon/com"
|
|
)
|
|
|
|
// NewPullRequest creates new pull request with labels for repository.
|
|
func NewPullRequest(repo *models.Repository, pull *models.Issue, labelIDs []int64, uuids []string, pr *models.PullRequest, assigneeIDs []int64) error {
|
|
if err := TestPatch(pr); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := models.NewPullRequest(repo, pull, labelIDs, uuids, pr); err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, assigneeID := range assigneeIDs {
|
|
if err := issue_service.AddAssigneeIfNotAssigned(pull, pull.Poster, assigneeID); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
pr.Issue = pull
|
|
pull.PullRequest = pr
|
|
|
|
if err := PushToBaseRepo(pr); err != nil {
|
|
return err
|
|
}
|
|
|
|
notification.NotifyNewPullRequest(pr)
|
|
|
|
return nil
|
|
}
|
|
|
|
// ChangeTargetBranch changes the target branch of this pull request, as the given user.
|
|
func ChangeTargetBranch(pr *models.PullRequest, doer *models.User, targetBranch string) (err error) {
|
|
// Current target branch is already the same
|
|
if pr.BaseBranch == targetBranch {
|
|
return nil
|
|
}
|
|
|
|
if pr.Issue.IsClosed {
|
|
return models.ErrIssueIsClosed{
|
|
ID: pr.Issue.ID,
|
|
RepoID: pr.Issue.RepoID,
|
|
Index: pr.Issue.Index,
|
|
}
|
|
}
|
|
|
|
if pr.HasMerged {
|
|
return models.ErrPullRequestHasMerged{
|
|
ID: pr.ID,
|
|
IssueID: pr.Index,
|
|
HeadRepoID: pr.HeadRepoID,
|
|
BaseRepoID: pr.BaseRepoID,
|
|
HeadBranch: pr.HeadBranch,
|
|
BaseBranch: pr.BaseBranch,
|
|
}
|
|
}
|
|
|
|
// Check if branches are equal
|
|
branchesEqual, err := pr.IsHeadEqualWithBranch(targetBranch)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if branchesEqual {
|
|
return models.ErrBranchesEqual{
|
|
HeadBranchName: pr.HeadBranch,
|
|
BaseBranchName: targetBranch,
|
|
}
|
|
}
|
|
|
|
// Check if pull request for the new target branch already exists
|
|
existingPr, err := models.GetUnmergedPullRequest(pr.HeadRepoID, pr.BaseRepoID, pr.HeadBranch, targetBranch)
|
|
if existingPr != nil {
|
|
return models.ErrPullRequestAlreadyExists{
|
|
ID: existingPr.ID,
|
|
IssueID: existingPr.Index,
|
|
HeadRepoID: existingPr.HeadRepoID,
|
|
BaseRepoID: existingPr.BaseRepoID,
|
|
HeadBranch: existingPr.HeadBranch,
|
|
BaseBranch: existingPr.BaseBranch,
|
|
}
|
|
}
|
|
if err != nil && !models.IsErrPullRequestNotExist(err) {
|
|
return err
|
|
}
|
|
|
|
// Set new target branch
|
|
oldBranch := pr.BaseBranch
|
|
pr.BaseBranch = targetBranch
|
|
|
|
// Refresh patch
|
|
if err := TestPatch(pr); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Update target branch, PR diff and status
|
|
// This is the same as checkAndUpdateStatus in check service, but also updates base_branch
|
|
if pr.Status == models.PullRequestStatusChecking {
|
|
pr.Status = models.PullRequestStatusMergeable
|
|
}
|
|
if err := pr.UpdateCols("status, conflicted_files, base_branch"); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Create comment
|
|
options := &models.CreateCommentOptions{
|
|
Type: models.CommentTypeChangeTargetBranch,
|
|
Doer: doer,
|
|
Repo: pr.Issue.Repo,
|
|
Issue: pr.Issue,
|
|
OldRef: oldBranch,
|
|
NewRef: targetBranch,
|
|
}
|
|
if _, err = models.CreateComment(options); err != nil {
|
|
return fmt.Errorf("CreateChangeTargetBranchComment: %v", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func checkForInvalidation(requests models.PullRequestList, repoID int64, doer *models.User, branch string) error {
|
|
repo, err := models.GetRepositoryByID(repoID)
|
|
if err != nil {
|
|
return fmt.Errorf("GetRepositoryByID: %v", err)
|
|
}
|
|
gitRepo, err := git.OpenRepository(repo.RepoPath())
|
|
if err != nil {
|
|
return fmt.Errorf("git.OpenRepository: %v", err)
|
|
}
|
|
go func() {
|
|
// FIXME: graceful: We need to tell the manager we're doing something...
|
|
err := requests.InvalidateCodeComments(doer, gitRepo, branch)
|
|
if err != nil {
|
|
log.Error("PullRequestList.InvalidateCodeComments: %v", err)
|
|
}
|
|
gitRepo.Close()
|
|
}()
|
|
return nil
|
|
}
|
|
|
|
func addHeadRepoTasks(prs []*models.PullRequest) {
|
|
for _, pr := range prs {
|
|
log.Trace("addHeadRepoTasks[%d]: composing new test task", pr.ID)
|
|
if err := PushToBaseRepo(pr); err != nil {
|
|
log.Error("PushToBaseRepo: %v", err)
|
|
continue
|
|
}
|
|
|
|
AddToTaskQueue(pr)
|
|
}
|
|
}
|
|
|
|
// AddTestPullRequestTask adds new test tasks by given head/base repository and head/base branch,
|
|
// and generate new patch for testing as needed.
|
|
func AddTestPullRequestTask(doer *models.User, repoID int64, branch string, isSync bool, oldCommitID, newCommitID string) {
|
|
log.Trace("AddTestPullRequestTask [head_repo_id: %d, head_branch: %s]: finding pull requests", repoID, branch)
|
|
graceful.GetManager().RunWithShutdownContext(func(ctx context.Context) {
|
|
// There is no sensible way to shut this down ":-("
|
|
// If you don't let it run all the way then you will lose data
|
|
// FIXME: graceful: AddTestPullRequestTask needs to become a queue!
|
|
|
|
prs, err := models.GetUnmergedPullRequestsByHeadInfo(repoID, branch)
|
|
if err != nil {
|
|
log.Error("Find pull requests [head_repo_id: %d, head_branch: %s]: %v", repoID, branch, err)
|
|
return
|
|
}
|
|
|
|
if isSync {
|
|
requests := models.PullRequestList(prs)
|
|
if err = requests.LoadAttributes(); err != nil {
|
|
log.Error("PullRequestList.LoadAttributes: %v", err)
|
|
}
|
|
if invalidationErr := checkForInvalidation(requests, repoID, doer, branch); invalidationErr != nil {
|
|
log.Error("checkForInvalidation: %v", invalidationErr)
|
|
}
|
|
if err == nil {
|
|
for _, pr := range prs {
|
|
if newCommitID != "" && newCommitID != git.EmptySHA {
|
|
changed, err := checkIfPRContentChanged(pr, oldCommitID, newCommitID)
|
|
if err != nil {
|
|
log.Error("checkIfPRContentChanged: %v", err)
|
|
}
|
|
if changed {
|
|
// Mark old reviews as stale if diff to mergebase has changed
|
|
if err := models.MarkReviewsAsStale(pr.IssueID); err != nil {
|
|
log.Error("MarkReviewsAsStale: %v", err)
|
|
}
|
|
}
|
|
if err := models.MarkReviewsAsNotStale(pr.IssueID, newCommitID); err != nil {
|
|
log.Error("MarkReviewsAsNotStale: %v", err)
|
|
}
|
|
}
|
|
|
|
pr.Issue.PullRequest = pr
|
|
notification.NotifyPullRequestSynchronized(doer, pr)
|
|
}
|
|
}
|
|
}
|
|
|
|
addHeadRepoTasks(prs)
|
|
|
|
log.Trace("AddTestPullRequestTask [base_repo_id: %d, base_branch: %s]: finding pull requests", repoID, branch)
|
|
prs, err = models.GetUnmergedPullRequestsByBaseInfo(repoID, branch)
|
|
if err != nil {
|
|
log.Error("Find pull requests [base_repo_id: %d, base_branch: %s]: %v", repoID, branch, err)
|
|
return
|
|
}
|
|
for _, pr := range prs {
|
|
AddToTaskQueue(pr)
|
|
}
|
|
})
|
|
}
|
|
|
|
// checkIfPRContentChanged checks if diff to target branch has changed by push
|
|
// A commit can be considered to leave the PR untouched if the patch/diff with its merge base is unchanged
|
|
func checkIfPRContentChanged(pr *models.PullRequest, oldCommitID, newCommitID string) (hasChanged bool, err error) {
|
|
|
|
if err = pr.GetHeadRepo(); err != nil {
|
|
return false, fmt.Errorf("GetHeadRepo: %v", err)
|
|
} else if pr.HeadRepo == nil {
|
|
// corrupt data assumed changed
|
|
return true, nil
|
|
}
|
|
|
|
if err = pr.GetBaseRepo(); err != nil {
|
|
return false, fmt.Errorf("GetBaseRepo: %v", err)
|
|
}
|
|
|
|
headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
|
|
if err != nil {
|
|
return false, fmt.Errorf("OpenRepository: %v", err)
|
|
}
|
|
defer headGitRepo.Close()
|
|
|
|
// Add a temporary remote.
|
|
tmpRemote := "checkIfPRContentChanged-" + com.ToStr(time.Now().UnixNano())
|
|
if err = headGitRepo.AddRemote(tmpRemote, pr.BaseRepo.RepoPath(), true); err != nil {
|
|
return false, fmt.Errorf("AddRemote: %s/%s-%s: %v", pr.HeadRepo.OwnerName, pr.HeadRepo.Name, tmpRemote, err)
|
|
}
|
|
defer func() {
|
|
if err := headGitRepo.RemoveRemote(tmpRemote); err != nil {
|
|
log.Error("checkIfPRContentChanged: RemoveRemote: %s/%s-%s: %v", pr.HeadRepo.OwnerName, pr.HeadRepo.Name, tmpRemote, err)
|
|
}
|
|
}()
|
|
// To synchronize repo and get a base ref
|
|
_, base, err := headGitRepo.GetMergeBase(tmpRemote, pr.BaseBranch, pr.HeadBranch)
|
|
if err != nil {
|
|
return false, fmt.Errorf("GetMergeBase: %v", err)
|
|
}
|
|
|
|
diffBefore := &bytes.Buffer{}
|
|
diffAfter := &bytes.Buffer{}
|
|
if err := headGitRepo.GetDiffFromMergeBase(base, oldCommitID, diffBefore); err != nil {
|
|
// If old commit not found, assume changed.
|
|
log.Debug("GetDiffFromMergeBase: %v", err)
|
|
return true, nil
|
|
}
|
|
if err := headGitRepo.GetDiffFromMergeBase(base, newCommitID, diffAfter); err != nil {
|
|
// New commit should be found
|
|
return false, fmt.Errorf("GetDiffFromMergeBase: %v", err)
|
|
}
|
|
|
|
diffBeforeLines := bufio.NewScanner(diffBefore)
|
|
diffAfterLines := bufio.NewScanner(diffAfter)
|
|
|
|
for diffBeforeLines.Scan() && diffAfterLines.Scan() {
|
|
if strings.HasPrefix(diffBeforeLines.Text(), "index") && strings.HasPrefix(diffAfterLines.Text(), "index") {
|
|
// file hashes can change without the diff changing
|
|
continue
|
|
} else if strings.HasPrefix(diffBeforeLines.Text(), "@@") && strings.HasPrefix(diffAfterLines.Text(), "@@") {
|
|
// the location of the difference may change
|
|
continue
|
|
} else if !bytes.Equal(diffBeforeLines.Bytes(), diffAfterLines.Bytes()) {
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
if diffBeforeLines.Scan() || diffAfterLines.Scan() {
|
|
// Diffs not of equal length
|
|
return true, nil
|
|
}
|
|
|
|
return false, nil
|
|
}
|
|
|
|
// PushToBaseRepo pushes commits from branches of head repository to
|
|
// corresponding branches of base repository.
|
|
// FIXME: Only push branches that are actually updates?
|
|
func PushToBaseRepo(pr *models.PullRequest) (err error) {
|
|
log.Trace("PushToBaseRepo[%d]: pushing commits to base repo '%s'", pr.BaseRepoID, pr.GetGitRefName())
|
|
|
|
// Clone base repo.
|
|
tmpBasePath, err := models.CreateTemporaryPath("pull")
|
|
if err != nil {
|
|
log.Error("CreateTemporaryPath: %v", err)
|
|
return err
|
|
}
|
|
defer func() {
|
|
err := models.RemoveTemporaryPath(tmpBasePath)
|
|
if err != nil {
|
|
log.Error("Error whilst removing temporary path: %s Error: %v", tmpBasePath, err)
|
|
}
|
|
}()
|
|
|
|
headRepoPath := pr.HeadRepo.RepoPath()
|
|
|
|
if err := git.Clone(headRepoPath, tmpBasePath, git.CloneRepoOptions{
|
|
Bare: true,
|
|
Shared: true,
|
|
Branch: pr.HeadBranch,
|
|
Quiet: true,
|
|
}); err != nil {
|
|
log.Error("git clone tmpBasePath: %v", err)
|
|
return err
|
|
}
|
|
gitRepo, err := git.OpenRepository(tmpBasePath)
|
|
if err != nil {
|
|
return fmt.Errorf("OpenRepository: %v", err)
|
|
}
|
|
|
|
if err := gitRepo.AddRemote("base", pr.BaseRepo.RepoPath(), false); err != nil {
|
|
return fmt.Errorf("tmpGitRepo.AddRemote: %v", err)
|
|
}
|
|
defer gitRepo.Close()
|
|
|
|
headFile := pr.GetGitRefName()
|
|
|
|
// Remove head in case there is a conflict.
|
|
file := path.Join(pr.BaseRepo.RepoPath(), headFile)
|
|
|
|
_ = os.Remove(file)
|
|
|
|
if err = pr.LoadIssue(); err != nil {
|
|
return fmt.Errorf("unable to load issue %d for pr %d: %v", pr.IssueID, pr.ID, err)
|
|
}
|
|
if err = pr.Issue.LoadPoster(); err != nil {
|
|
return fmt.Errorf("unable to load poster %d for pr %d: %v", pr.Issue.PosterID, pr.ID, err)
|
|
}
|
|
|
|
if err = git.Push(tmpBasePath, git.PushOptions{
|
|
Remote: "base",
|
|
Branch: fmt.Sprintf("%s:%s", pr.HeadBranch, headFile),
|
|
Force: true,
|
|
// 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 {
|
|
return fmt.Errorf("Push: %s:%s %s:%s %v", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), headFile, err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
type errlist []error
|
|
|
|
func (errs errlist) Error() string {
|
|
if len(errs) > 0 {
|
|
var buf strings.Builder
|
|
for i, err := range errs {
|
|
if i > 0 {
|
|
buf.WriteString(", ")
|
|
}
|
|
buf.WriteString(err.Error())
|
|
}
|
|
return buf.String()
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// CloseBranchPulls close all the pull requests who's head branch is the branch
|
|
func CloseBranchPulls(doer *models.User, repoID int64, branch string) error {
|
|
prs, err := models.GetUnmergedPullRequestsByHeadInfo(repoID, branch)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
prs2, err := models.GetUnmergedPullRequestsByBaseInfo(repoID, branch)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
prs = append(prs, prs2...)
|
|
if err := models.PullRequestList(prs).LoadAttributes(); err != nil {
|
|
return err
|
|
}
|
|
|
|
var errs errlist
|
|
for _, pr := range prs {
|
|
if err = issue_service.ChangeStatus(pr.Issue, doer, true); err != nil && !models.IsErrIssueWasClosed(err) {
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
if len(errs) > 0 {
|
|
return errs
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// CloseRepoBranchesPulls close all pull requests which head branches are in the given repository
|
|
func CloseRepoBranchesPulls(doer *models.User, repo *models.Repository) error {
|
|
branches, err := git.GetBranchesByPath(repo.RepoPath())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var errs errlist
|
|
for _, branch := range branches {
|
|
prs, err := models.GetUnmergedPullRequestsByHeadInfo(repo.ID, branch.Name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err = models.PullRequestList(prs).LoadAttributes(); err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, pr := range prs {
|
|
if err = issue_service.ChangeStatus(pr.Issue, doer, true); err != nil && !models.IsErrIssueWasClosed(err) {
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
if len(errs) > 0 {
|
|
return errs
|
|
}
|
|
return nil
|
|
}
|