1
1
mirror of https://github.com/go-gitea/gitea synced 2024-12-23 17:14:27 +00:00
gitea/models/pull.go
typeless 937b4b5aa1 Speed up conflict checking in pull request creation (#276)
* Speed up conflict checking in pull request creation

In order to check conflicts of a PR, we set up a working tree by
cloning the base branch, which is quite time-consuming when the repository is huge.
Instead, this PR uses `git read-tree` and `git apply --check --cached` to check conflicts.

For #258

* Use $GIT_INDEX_FILE instead of --index-output to avoid lockfile problem

The lockfile gets renamed to the final destination after the operation
finishes. But it must be located in the same filesystem, which prevents
us from using /tmp.

* Temporary file names should not prefixed with '-'
2016-12-29 22:59:52 +08:00

954 lines
28 KiB
Go

// Copyright 2015 The Gogs 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 models
import (
"fmt"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"code.gitea.io/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/sync"
api "code.gitea.io/sdk/gitea"
"github.com/Unknwon/com"
"github.com/go-xorm/xorm"
)
var pullRequestQueue = sync.NewUniqueQueue(setting.Repository.PullRequestQueueLength)
// PullRequestType defines pull request type
type PullRequestType int
// Enumerate all the pull request types
const (
PullRequestGitea PullRequestType = iota
PullRequestGit
)
// PullRequestStatus defines pull request status
type PullRequestStatus int
// Enumerate all the pull request status
const (
PullRequestStatusConflict PullRequestStatus = iota
PullRequestStatusChecking
PullRequestStatusMergeable
)
// PullRequest represents relation between pull request and repositories.
type PullRequest struct {
ID int64 `xorm:"pk autoincr"`
Type PullRequestType
Status PullRequestStatus
IssueID int64 `xorm:"INDEX"`
Issue *Issue `xorm:"-"`
Index int64
HeadRepoID int64
HeadRepo *Repository `xorm:"-"`
BaseRepoID int64
BaseRepo *Repository `xorm:"-"`
HeadUserName string
HeadBranch string
BaseBranch string
MergeBase string `xorm:"VARCHAR(40)"`
HasMerged bool
MergedCommitID string `xorm:"VARCHAR(40)"`
MergerID int64
Merger *User `xorm:"-"`
Merged time.Time `xorm:"-"`
MergedUnix int64
}
// BeforeUpdate is invoked from XORM before updating an object of this type.
func (pr *PullRequest) BeforeUpdate() {
pr.MergedUnix = pr.Merged.Unix()
}
// AfterSet is invoked from XORM after setting the value of a field of this object.
// Note: don't try to get Issue because will end up recursive querying.
func (pr *PullRequest) AfterSet(colName string, _ xorm.Cell) {
switch colName {
case "merged_unix":
if !pr.HasMerged {
return
}
pr.Merged = time.Unix(pr.MergedUnix, 0).Local()
}
}
// Note: don't try to get Issue because will end up recursive querying.
func (pr *PullRequest) loadAttributes(e Engine) (err error) {
if pr.HasMerged && pr.Merger == nil {
pr.Merger, err = getUserByID(e, pr.MergerID)
if IsErrUserNotExist(err) {
pr.MergerID = -1
pr.Merger = NewGhostUser()
} else if err != nil {
return fmt.Errorf("getUserByID [%d]: %v", pr.MergerID, err)
}
}
return nil
}
// LoadAttributes loads pull request attributes from database
func (pr *PullRequest) LoadAttributes() error {
return pr.loadAttributes(x)
}
// LoadIssue loads issue information from database
func (pr *PullRequest) LoadIssue() (err error) {
if pr.Issue != nil {
return nil
}
pr.Issue, err = GetIssueByID(pr.IssueID)
return err
}
// APIFormat assumes following fields have been assigned with valid values:
// Required - Issue
// Optional - Merger
func (pr *PullRequest) APIFormat() *api.PullRequest {
var (
baseBranch *Branch
headBranch *Branch
baseCommit *git.Commit
headCommit *git.Commit
err error
)
apiIssue := pr.Issue.APIFormat()
if pr.BaseRepo == nil {
pr.BaseRepo, err = GetRepositoryByID(pr.BaseRepoID)
if err != nil {
log.Error(log.ERROR, "GetRepositoryById[%d]: %v", pr.ID, err)
return nil
}
}
if pr.HeadRepo == nil {
pr.HeadRepo, err = GetRepositoryByID(pr.HeadRepoID)
if err != nil {
log.Error(log.ERROR, "GetRepositoryById[%d]: %v", pr.ID, err)
return nil
}
}
if baseBranch, err = pr.BaseRepo.GetBranch(pr.BaseBranch); err != nil {
return nil
}
if baseCommit, err = baseBranch.GetCommit(); err != nil {
return nil
}
if headBranch, err = pr.HeadRepo.GetBranch(pr.HeadBranch); err != nil {
return nil
}
if headCommit, err = headBranch.GetCommit(); err != nil {
return nil
}
apiBaseBranchInfo := &api.PRBranchInfo{
Name: pr.BaseBranch,
Ref: pr.BaseBranch,
Sha: baseCommit.ID.String(),
RepoID: pr.BaseRepoID,
Repository: pr.BaseRepo.APIFormat(AccessModeNone),
}
apiHeadBranchInfo := &api.PRBranchInfo{
Name: pr.HeadBranch,
Ref: pr.HeadBranch,
Sha: headCommit.ID.String(),
RepoID: pr.HeadRepoID,
Repository: pr.HeadRepo.APIFormat(AccessModeNone),
}
apiPullRequest := &api.PullRequest{
ID: pr.ID,
Index: pr.Index,
Poster: apiIssue.Poster,
Title: apiIssue.Title,
Body: apiIssue.Body,
Labels: apiIssue.Labels,
Milestone: apiIssue.Milestone,
Assignee: apiIssue.Assignee,
State: apiIssue.State,
Comments: apiIssue.Comments,
HTMLURL: pr.Issue.HTMLURL(),
DiffURL: pr.Issue.DiffURL(),
PatchURL: pr.Issue.PatchURL(),
HasMerged: pr.HasMerged,
Base: apiBaseBranchInfo,
Head: apiHeadBranchInfo,
MergeBase: pr.MergeBase,
}
if pr.Status != PullRequestStatusChecking {
mergeable := pr.Status != PullRequestStatusConflict
apiPullRequest.Mergeable = mergeable
}
if pr.HasMerged {
apiPullRequest.Merged = &pr.Merged
apiPullRequest.MergedCommitID = &pr.MergedCommitID
apiPullRequest.MergedBy = pr.Merger.APIFormat()
}
return apiPullRequest
}
func (pr *PullRequest) getHeadRepo(e Engine) (err error) {
pr.HeadRepo, err = getRepositoryByID(e, pr.HeadRepoID)
if err != nil && !IsErrRepoNotExist(err) {
return fmt.Errorf("getRepositoryByID(head): %v", err)
}
return nil
}
// GetHeadRepo loads the head repository
func (pr *PullRequest) GetHeadRepo() error {
return pr.getHeadRepo(x)
}
// GetBaseRepo loads the target repository
func (pr *PullRequest) GetBaseRepo() (err error) {
if pr.BaseRepo != nil {
return nil
}
pr.BaseRepo, err = GetRepositoryByID(pr.BaseRepoID)
if err != nil {
return fmt.Errorf("GetRepositoryByID(base): %v", err)
}
return nil
}
// IsChecking returns true if this pull request is still checking conflict.
func (pr *PullRequest) IsChecking() bool {
return pr.Status == PullRequestStatusChecking
}
// CanAutoMerge returns true if this pull request can be merged automatically.
func (pr *PullRequest) CanAutoMerge() bool {
return pr.Status == PullRequestStatusMergeable
}
// Merge merges pull request to base repository.
// FIXME: add repoWorkingPull make sure two merges does not happen at same time.
func (pr *PullRequest) Merge(doer *User, baseGitRepo *git.Repository) (err error) {
if err = pr.GetHeadRepo(); err != nil {
return fmt.Errorf("GetHeadRepo: %v", err)
} else if err = pr.GetBaseRepo(); err != nil {
return fmt.Errorf("GetBaseRepo: %v", err)
}
defer func() {
go HookQueue.Add(pr.BaseRepo.ID)
go AddTestPullRequestTask(doer, pr.BaseRepo.ID, pr.BaseBranch, false)
}()
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = pr.Issue.changeStatus(sess, doer, pr.Issue.Repo, true); err != nil {
return fmt.Errorf("Issue.changeStatus: %v", err)
}
headRepoPath := RepoPath(pr.HeadUserName, pr.HeadRepo.Name)
headGitRepo, err := git.OpenRepository(headRepoPath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
// Clone base repo.
tmpBasePath := path.Join(setting.AppDataPath, "tmp/repos", com.ToStr(time.Now().Nanosecond())+".git")
if err := os.MkdirAll(path.Dir(tmpBasePath), os.ModePerm); err != nil {
return fmt.Errorf("Fail to create dir %s: %v", tmpBasePath, err)
}
defer os.RemoveAll(path.Dir(tmpBasePath))
var stderr string
if _, stderr, err = process.ExecTimeout(5*time.Minute,
fmt.Sprintf("PullRequest.Merge (git clone): %s", tmpBasePath),
"git", "clone", baseGitRepo.Path, tmpBasePath); err != nil {
return fmt.Errorf("git clone: %s", stderr)
}
// Check out base branch.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git checkout): %s", tmpBasePath),
"git", "checkout", pr.BaseBranch); err != nil {
return fmt.Errorf("git checkout: %s", stderr)
}
// Add head repo remote.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git remote add): %s", tmpBasePath),
"git", "remote", "add", "head_repo", headRepoPath); err != nil {
return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
// Merge commits.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git fetch): %s", tmpBasePath),
"git", "fetch", "head_repo"); err != nil {
return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git merge --no-ff --no-commit): %s", tmpBasePath),
"git", "merge", "--no-ff", "--no-commit", "head_repo/"+pr.HeadBranch); err != nil {
return fmt.Errorf("git merge --no-ff --no-commit [%s]: %v - %s", tmpBasePath, err, stderr)
}
sig := doer.NewGitSig()
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git merge): %s", tmpBasePath),
"git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", fmt.Sprintf("Merge branch '%s' of %s/%s into %s", pr.HeadBranch, pr.HeadUserName, pr.HeadRepo.Name, pr.BaseBranch)); err != nil {
return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, stderr)
}
// Push back to upstream.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git push): %s", tmpBasePath),
"git", "push", baseGitRepo.Path, pr.BaseBranch); err != nil {
return fmt.Errorf("git push: %s", stderr)
}
pr.MergedCommitID, err = headGitRepo.GetBranchCommitID(pr.HeadBranch)
if err != nil {
return fmt.Errorf("GetBranchCommit: %v", err)
}
pr.HasMerged = true
pr.Merged = time.Now()
pr.MergerID = doer.ID
if _, err = sess.Id(pr.ID).AllCols().Update(pr); err != nil {
return fmt.Errorf("update pull request: %v", err)
}
if err = sess.Commit(); err != nil {
return fmt.Errorf("Commit: %v", err)
}
if err = MergePullRequestAction(doer, pr.Issue.Repo, pr.Issue); err != nil {
log.Error(4, "MergePullRequestAction [%d]: %v", pr.ID, err)
}
// Reload pull request information.
if err = pr.LoadAttributes(); err != nil {
log.Error(4, "LoadAttributes: %v", err)
return nil
}
if err = PrepareWebhooks(pr.Issue.Repo, HookEventPullRequest, &api.PullRequestPayload{
Action: api.HookIssueClosed,
Index: pr.Index,
PullRequest: pr.APIFormat(),
Repository: pr.Issue.Repo.APIFormat(AccessModeNone),
Sender: doer.APIFormat(),
}); err != nil {
log.Error(4, "PrepareWebhooks: %v", err)
return nil
}
l, err := headGitRepo.CommitsBetweenIDs(pr.MergedCommitID, pr.MergeBase)
if err != nil {
log.Error(4, "CommitsBetweenIDs: %v", err)
return nil
}
// TODO: when squash commits, no need to append merge commit.
// It is possible that head branch is not fully sync with base branch for merge commits,
// so we need to get latest head commit and append merge commit manully
// to avoid strange diff commits produced.
mergeCommit, err := baseGitRepo.GetBranchCommit(pr.BaseBranch)
if err != nil {
log.Error(4, "GetBranchCommit: %v", err)
return nil
}
l.PushFront(mergeCommit)
p := &api.PushPayload{
Ref: git.BranchPrefix + pr.BaseBranch,
Before: pr.MergeBase,
After: pr.MergedCommitID,
CompareURL: setting.AppURL + pr.BaseRepo.ComposeCompareURL(pr.MergeBase, pr.MergedCommitID),
Commits: ListToPushCommits(l).ToAPIPayloadCommits(pr.BaseRepo.HTMLURL()),
Repo: pr.BaseRepo.APIFormat(AccessModeNone),
Pusher: pr.HeadRepo.MustOwner().APIFormat(),
Sender: doer.APIFormat(),
}
if err = PrepareWebhooks(pr.BaseRepo, HookEventPush, p); err != nil {
return fmt.Errorf("PrepareWebhooks: %v", err)
}
return nil
}
// patchConflicts is a list of conflict description from Git.
var patchConflicts = []string{
"patch does not apply",
"already exists in working directory",
"unrecognized input",
"error:",
}
// testPatch checks if patch can be merged to base repository without conflict.
func (pr *PullRequest) testPatch() (err error) {
if pr.BaseRepo == nil {
pr.BaseRepo, err = GetRepositoryByID(pr.BaseRepoID)
if err != nil {
return fmt.Errorf("GetRepositoryByID: %v", err)
}
}
patchPath, err := pr.BaseRepo.PatchPath(pr.Index)
if err != nil {
return fmt.Errorf("BaseRepo.PatchPath: %v", err)
}
// Fast fail if patch does not exist, this assumes data is cruppted.
if !com.IsFile(patchPath) {
log.Trace("PullRequest[%d].testPatch: ignored cruppted data", pr.ID)
return nil
}
repoWorkingPool.CheckIn(com.ToStr(pr.BaseRepoID))
defer repoWorkingPool.CheckOut(com.ToStr(pr.BaseRepoID))
log.Trace("PullRequest[%d].testPatch (patchPath): %s", pr.ID, patchPath)
pr.Status = PullRequestStatusChecking
indexTmpPath := filepath.Join(os.TempDir(), "gitea-"+pr.BaseRepo.Name+"-"+strconv.Itoa(time.Now().Nanosecond()))
defer os.Remove(indexTmpPath)
var stderr string
_, stderr, err = process.ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git read-tree): %d", pr.BaseRepo.ID),
[]string{"GIT_DIR=" + pr.BaseRepo.RepoPath(), "GIT_INDEX_FILE=" + indexTmpPath},
"git", "read-tree", pr.BaseBranch)
if err != nil {
return fmt.Errorf("git read-tree --index-output=%s %s: %v - %s", indexTmpPath, pr.BaseBranch, err, stderr)
}
_, stderr, err = process.ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git apply --check): %d", pr.BaseRepo.ID),
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
"git", "apply", "--check", "--cached", patchPath)
if err != nil {
for i := range patchConflicts {
if strings.Contains(stderr, patchConflicts[i]) {
log.Trace("PullRequest[%d].testPatch (apply): has conflict", pr.ID)
fmt.Println(stderr)
pr.Status = PullRequestStatusConflict
return nil
}
}
return fmt.Errorf("git apply --check: %v - %s", err, stderr)
}
return nil
}
// NewPullRequest creates new pull request with labels for repository.
func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte) (err error) {
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = newIssue(sess, NewIssueOptions{
Repo: repo,
Issue: pull,
LableIDs: labelIDs,
Attachments: uuids,
IsPull: true,
}); err != nil {
return fmt.Errorf("newIssue: %v", err)
}
pr.Index = pull.Index
if err = repo.SavePatch(pr.Index, patch); err != nil {
return fmt.Errorf("SavePatch: %v", err)
}
pr.BaseRepo = repo
if err = pr.testPatch(); err != nil {
return fmt.Errorf("testPatch: %v", err)
}
// No conflict appears after test means mergeable.
if pr.Status == PullRequestStatusChecking {
pr.Status = PullRequestStatusMergeable
}
pr.IssueID = pull.ID
if _, err = sess.Insert(pr); err != nil {
return fmt.Errorf("insert pull repo: %v", err)
}
if err = sess.Commit(); err != nil {
return fmt.Errorf("Commit: %v", err)
}
if err = NotifyWatchers(&Action{
ActUserID: pull.Poster.ID,
ActUserName: pull.Poster.Name,
OpType: ActionCreatePullRequest,
Content: fmt.Sprintf("%d|%s", pull.Index, pull.Title),
RepoID: repo.ID,
RepoUserName: repo.Owner.Name,
RepoName: repo.Name,
IsPrivate: repo.IsPrivate,
}); err != nil {
log.Error(4, "NotifyWatchers: %v", err)
} else if err = pull.MailParticipants(); err != nil {
log.Error(4, "MailParticipants: %v", err)
}
pr.Issue = pull
pull.PullRequest = pr
if err = PrepareWebhooks(repo, HookEventPullRequest, &api.PullRequestPayload{
Action: api.HookIssueOpened,
Index: pull.Index,
PullRequest: pr.APIFormat(),
Repository: repo.APIFormat(AccessModeNone),
Sender: pull.Poster.APIFormat(),
}); err != nil {
log.Error(4, "PrepareWebhooks: %v", err)
}
go HookQueue.Add(repo.ID)
return nil
}
// PullRequestsOptions holds the options for PRs
type PullRequestsOptions struct {
Page int
State string
SortType string
Labels []string
MilestoneID int64
}
func listPullRequestStatement(baseRepoID int64, opts *PullRequestsOptions) *xorm.Session {
sess := x.Where("pull_request.base_repo_id=?", baseRepoID)
sess.Join("INNER", "issue", "pull_request.issue_id = issue.id")
switch opts.State {
case "closed", "open":
sess.And("issue.is_closed=?", opts.State == "closed")
}
return sess
}
// PullRequests returns all pull requests for a base Repo by the given conditions
func PullRequests(baseRepoID int64, opts *PullRequestsOptions) ([]*PullRequest, int64, error) {
if opts.Page <= 0 {
opts.Page = 1
}
countSession := listPullRequestStatement(baseRepoID, opts)
maxResults, err := countSession.Count(new(PullRequest))
if err != nil {
log.Error(4, "Count PRs", err)
return nil, maxResults, err
}
prs := make([]*PullRequest, 0, ItemsPerPage)
findSession := listPullRequestStatement(baseRepoID, opts)
findSession.Limit(ItemsPerPage, (opts.Page-1)*ItemsPerPage)
return prs, maxResults, findSession.Find(&prs)
}
// GetUnmergedPullRequest returnss a pull request that is open and has not been merged
// by given head/base and repo/branch.
func GetUnmergedPullRequest(headRepoID, baseRepoID int64, headBranch, baseBranch string) (*PullRequest, error) {
pr := new(PullRequest)
has, err := x.
Where("head_repo_id=? AND head_branch=? AND base_repo_id=? AND base_branch=? AND has_merged=? AND issue.is_closed=?",
headRepoID, headBranch, baseRepoID, baseBranch, false, false).
Join("INNER", "issue", "issue.id=pull_request.issue_id").
Get(pr)
if err != nil {
return nil, err
} else if !has {
return nil, ErrPullRequestNotExist{0, 0, headRepoID, baseRepoID, headBranch, baseBranch}
}
return pr, nil
}
// GetUnmergedPullRequestsByHeadInfo returnss all pull requests that are open and has not been merged
// by given head information (repo and branch).
func GetUnmergedPullRequestsByHeadInfo(repoID int64, branch string) ([]*PullRequest, error) {
prs := make([]*PullRequest, 0, 2)
return prs, x.
Where("head_repo_id = ? AND head_branch = ? AND has_merged = ? AND issue.is_closed = ?",
repoID, branch, false, false).
Join("INNER", "issue", "issue.id = pull_request.issue_id").
Find(&prs)
}
// GetUnmergedPullRequestsByBaseInfo returnss all pull requests that are open and has not been merged
// by given base information (repo and branch).
func GetUnmergedPullRequestsByBaseInfo(repoID int64, branch string) ([]*PullRequest, error) {
prs := make([]*PullRequest, 0, 2)
return prs, x.
Where("base_repo_id=? AND base_branch=? AND has_merged=? AND issue.is_closed=?",
repoID, branch, false, false).
Join("INNER", "issue", "issue.id=pull_request.issue_id").
Find(&prs)
}
// GetPullRequestByIndex returns a pull request by the given index
func GetPullRequestByIndex(repoID int64, index int64) (*PullRequest, error) {
pr := &PullRequest{
BaseRepoID: repoID,
Index: index,
}
has, err := x.Get(pr)
if err != nil {
return nil, err
} else if !has {
return nil, ErrPullRequestNotExist{0, repoID, index, 0, "", ""}
}
if err = pr.LoadAttributes(); err != nil {
return nil, err
}
if err = pr.LoadIssue(); err != nil {
return nil, err
}
return pr, nil
}
func getPullRequestByID(e Engine, id int64) (*PullRequest, error) {
pr := new(PullRequest)
has, err := e.Id(id).Get(pr)
if err != nil {
return nil, err
} else if !has {
return nil, ErrPullRequestNotExist{id, 0, 0, 0, "", ""}
}
return pr, pr.loadAttributes(e)
}
// GetPullRequestByID returns a pull request by given ID.
func GetPullRequestByID(id int64) (*PullRequest, error) {
return getPullRequestByID(x, id)
}
func getPullRequestByIssueID(e Engine, issueID int64) (*PullRequest, error) {
pr := &PullRequest{
IssueID: issueID,
}
has, err := e.Get(pr)
if err != nil {
return nil, err
} else if !has {
return nil, ErrPullRequestNotExist{0, issueID, 0, 0, "", ""}
}
return pr, pr.loadAttributes(e)
}
// GetPullRequestByIssueID returns pull request by given issue ID.
func GetPullRequestByIssueID(issueID int64) (*PullRequest, error) {
return getPullRequestByIssueID(x, issueID)
}
// Update updates all fields of pull request.
func (pr *PullRequest) Update() error {
_, err := x.Id(pr.ID).AllCols().Update(pr)
return err
}
// UpdateCols updates specific fields of pull request.
func (pr *PullRequest) UpdateCols(cols ...string) error {
_, err := x.Id(pr.ID).Cols(cols...).Update(pr)
return err
}
// UpdatePatch generates and saves a new patch.
func (pr *PullRequest) UpdatePatch() (err error) {
if err = pr.GetHeadRepo(); err != nil {
return fmt.Errorf("GetHeadRepo: %v", err)
} else if pr.HeadRepo == nil {
log.Trace("PullRequest[%d].UpdatePatch: ignored cruppted data", pr.ID)
return nil
}
if err = pr.GetBaseRepo(); err != nil {
return fmt.Errorf("GetBaseRepo: %v", err)
}
headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
// Add a temporary remote.
tmpRemote := com.ToStr(time.Now().UnixNano())
if err = headGitRepo.AddRemote(tmpRemote, RepoPath(pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name), true); err != nil {
return fmt.Errorf("AddRemote: %v", err)
}
defer func() {
headGitRepo.RemoveRemote(tmpRemote)
}()
remoteBranch := "remotes/" + tmpRemote + "/" + pr.BaseBranch
pr.MergeBase, err = headGitRepo.GetMergeBase(remoteBranch, pr.HeadBranch)
if err != nil {
return fmt.Errorf("GetMergeBase: %v", err)
} else if err = pr.Update(); err != nil {
return fmt.Errorf("Update: %v", err)
}
patch, err := headGitRepo.GetPatch(pr.MergeBase, pr.HeadBranch)
if err != nil {
return fmt.Errorf("GetPatch: %v", err)
}
if err = pr.BaseRepo.SavePatch(pr.Index, patch); err != nil {
return fmt.Errorf("BaseRepo.SavePatch: %v", err)
}
return nil
}
// PushToBaseRepo pushes commits from branches of head repository to
// corresponding branches of base repository.
// FIXME: Only push branches that are actually updates?
func (pr *PullRequest) PushToBaseRepo() (err error) {
log.Trace("PushToBaseRepo[%d]: pushing commits to base repo 'refs/pull/%d/head'", pr.BaseRepoID, pr.Index)
headRepoPath := pr.HeadRepo.RepoPath()
headGitRepo, err := git.OpenRepository(headRepoPath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
tmpRemoteName := fmt.Sprintf("tmp-pull-%d", pr.ID)
if err = headGitRepo.AddRemote(tmpRemoteName, pr.BaseRepo.RepoPath(), false); err != nil {
return fmt.Errorf("headGitRepo.AddRemote: %v", err)
}
// Make sure to remove the remote even if the push fails
defer headGitRepo.RemoveRemote(tmpRemoteName)
headFile := fmt.Sprintf("refs/pull/%d/head", pr.Index)
// Remove head in case there is a conflict.
file := path.Join(pr.BaseRepo.RepoPath(), headFile)
_ = os.Remove(file)
if err = git.Push(headRepoPath, tmpRemoteName, fmt.Sprintf("%s:%s", pr.HeadBranch, headFile)); err != nil {
return fmt.Errorf("Push: %v", err)
}
return nil
}
// AddToTaskQueue adds itself to pull request test task queue.
func (pr *PullRequest) AddToTaskQueue() {
go pullRequestQueue.AddFunc(pr.ID, func() {
pr.Status = PullRequestStatusChecking
if err := pr.UpdateCols("status"); err != nil {
log.Error(5, "AddToTaskQueue.UpdateCols[%d].(add to queue): %v", pr.ID, err)
}
})
}
// PullRequestList defines a list of pull requests
type PullRequestList []*PullRequest
func (prs PullRequestList) loadAttributes(e Engine) error {
if len(prs) == 0 {
return nil
}
// Load issues.
issueIDs := make([]int64, 0, len(prs))
for i := range prs {
issueIDs = append(issueIDs, prs[i].IssueID)
}
issues := make([]*Issue, 0, len(issueIDs))
if err := e.
Where("id > 0").
In("id", issueIDs).
Find(&issues); err != nil {
return fmt.Errorf("find issues: %v", err)
}
set := make(map[int64]*Issue)
for i := range issues {
set[issues[i].ID] = issues[i]
}
for i := range prs {
prs[i].Issue = set[prs[i].IssueID]
}
return nil
}
// LoadAttributes load all the prs attributes
func (prs PullRequestList) LoadAttributes() error {
return prs.loadAttributes(x)
}
func addHeadRepoTasks(prs []*PullRequest) {
for _, pr := range prs {
log.Trace("addHeadRepoTasks[%d]: composing new test task", pr.ID)
if err := pr.UpdatePatch(); err != nil {
log.Error(4, "UpdatePatch: %v", err)
continue
} else if err := pr.PushToBaseRepo(); err != nil {
log.Error(4, "PushToBaseRepo: %v", err)
continue
}
pr.AddToTaskQueue()
}
}
// 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 *User, repoID int64, branch string, isSync bool) {
log.Trace("AddTestPullRequestTask [head_repo_id: %d, head_branch: %s]: finding pull requests", repoID, branch)
prs, err := GetUnmergedPullRequestsByHeadInfo(repoID, branch)
if err != nil {
log.Error(4, "Find pull requests [head_repo_id: %d, head_branch: %s]: %v", repoID, branch, err)
return
}
if isSync {
if err = PullRequestList(prs).LoadAttributes(); err != nil {
log.Error(4, "PullRequestList.LoadAttributes: %v", err)
}
if err == nil {
for _, pr := range prs {
pr.Issue.PullRequest = pr
if err = pr.Issue.LoadAttributes(); err != nil {
log.Error(4, "LoadAttributes: %v", err)
continue
}
if err = PrepareWebhooks(pr.Issue.Repo, HookEventPullRequest, &api.PullRequestPayload{
Action: api.HookIssueSynchronized,
Index: pr.Issue.Index,
PullRequest: pr.Issue.PullRequest.APIFormat(),
Repository: pr.Issue.Repo.APIFormat(AccessModeNone),
Sender: doer.APIFormat(),
}); err != nil {
log.Error(4, "PrepareWebhooks [pull_id: %v]: %v", pr.ID, err)
continue
}
go HookQueue.Add(pr.Issue.Repo.ID)
}
}
}
addHeadRepoTasks(prs)
log.Trace("AddTestPullRequestTask [base_repo_id: %d, base_branch: %s]: finding pull requests", repoID, branch)
prs, err = GetUnmergedPullRequestsByBaseInfo(repoID, branch)
if err != nil {
log.Error(4, "Find pull requests [base_repo_id: %d, base_branch: %s]: %v", repoID, branch, err)
return
}
for _, pr := range prs {
pr.AddToTaskQueue()
}
}
// ChangeUsernameInPullRequests changes the name of head_user_name
func ChangeUsernameInPullRequests(oldUserName, newUserName string) error {
pr := PullRequest{
HeadUserName: strings.ToLower(newUserName),
}
_, err := x.
Cols("head_user_name").
Where("head_user_name = ?", strings.ToLower(oldUserName)).
Update(pr)
return err
}
// checkAndUpdateStatus checks if pull request is possible to levaing checking status,
// and set to be either conflict or mergeable.
func (pr *PullRequest) checkAndUpdateStatus() {
// Status is not changed to conflict means mergeable.
if pr.Status == PullRequestStatusChecking {
pr.Status = PullRequestStatusMergeable
}
// Make sure there is no waiting test to process before levaing the checking status.
if !pullRequestQueue.Exist(pr.ID) {
if err := pr.UpdateCols("status"); err != nil {
log.Error(4, "Update[%d]: %v", pr.ID, err)
}
}
}
// TestPullRequests checks and tests untested patches of pull requests.
// TODO: test more pull requests at same time.
func TestPullRequests() {
prs := make([]*PullRequest, 0, 10)
x.Iterate(PullRequest{
Status: PullRequestStatusChecking,
},
func(idx int, bean interface{}) error {
pr := bean.(*PullRequest)
if err := pr.GetBaseRepo(); err != nil {
log.Error(3, "GetBaseRepo: %v", err)
return nil
}
if err := pr.testPatch(); err != nil {
log.Error(3, "testPatch: %v", err)
return nil
}
prs = append(prs, pr)
return nil
})
// Update pull request status.
for _, pr := range prs {
pr.checkAndUpdateStatus()
}
// Start listening on new test requests.
for prID := range pullRequestQueue.Queue() {
log.Trace("TestPullRequests[%v]: processing test task", prID)
pullRequestQueue.Remove(prID)
pr, err := GetPullRequestByID(com.StrTo(prID).MustInt64())
if err != nil {
log.Error(4, "GetPullRequestByID[%s]: %v", prID, err)
continue
} else if err = pr.testPatch(); err != nil {
log.Error(4, "testPatch[%d]: %v", pr.ID, err)
continue
}
pr.checkAndUpdateStatus()
}
}
// InitTestPullRequests runs the task to test all the checking status pull requests
func InitTestPullRequests() {
go TestPullRequests()
}