forgejo/models/pull.go
zeripath 722a7c902d
Add Close() method to gogitRepository (#8901)
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.

This PR adds this Close function and adds the Close functions as necessary.

In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.

Fixes #7947
2019-11-13 07:01:19 +00:00

1008 lines
29 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// 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 models
import (
"bufio"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/sync"
"code.gitea.io/gitea/modules/timeutil"
"github.com/unknwon/com"
)
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
PullRequestStatusManuallyMerged
)
// PullRequest represents relation between pull request and repositories.
type PullRequest struct {
ID int64 `xorm:"pk autoincr"`
Type PullRequestType
Status PullRequestStatus
ConflictedFiles []string `xorm:"TEXT JSON"`
IssueID int64 `xorm:"INDEX"`
Issue *Issue `xorm:"-"`
Index int64
HeadRepoID int64 `xorm:"INDEX"`
HeadRepo *Repository `xorm:"-"`
BaseRepoID int64 `xorm:"INDEX"`
BaseRepo *Repository `xorm:"-"`
HeadBranch string
BaseBranch string
ProtectedBranch *ProtectedBranch `xorm:"-"`
MergeBase string `xorm:"VARCHAR(40)"`
HasMerged bool `xorm:"INDEX"`
MergedCommitID string `xorm:"VARCHAR(40)"`
MergerID int64 `xorm:"INDEX"`
Merger *User `xorm:"-"`
MergedUnix timeutil.TimeStamp `xorm:"updated INDEX"`
}
// MustHeadUserName returns the HeadRepo's username if failed return blank
func (pr *PullRequest) MustHeadUserName() string {
if err := pr.LoadHeadRepo(); err != nil {
log.Error("LoadHeadRepo: %v", err)
return ""
}
return pr.HeadRepo.MustOwnerName()
}
// 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)
}
// LoadBaseRepo loads pull request base repository from database
func (pr *PullRequest) LoadBaseRepo() error {
if pr.BaseRepo == nil {
if pr.HeadRepoID == pr.BaseRepoID && pr.HeadRepo != nil {
pr.BaseRepo = pr.HeadRepo
return nil
}
var repo Repository
if has, err := x.ID(pr.BaseRepoID).Get(&repo); err != nil {
return err
} else if !has {
return ErrRepoNotExist{ID: pr.BaseRepoID}
}
pr.BaseRepo = &repo
}
return nil
}
// LoadHeadRepo loads pull request head repository from database
func (pr *PullRequest) LoadHeadRepo() error {
if pr.HeadRepo == nil {
if pr.HeadRepoID == pr.BaseRepoID && pr.BaseRepo != nil {
pr.HeadRepo = pr.BaseRepo
return nil
}
var repo Repository
if has, err := x.ID(pr.HeadRepoID).Get(&repo); err != nil {
return err
} else if !has {
return ErrRepoNotExist{ID: pr.BaseRepoID}
}
pr.HeadRepo = &repo
}
return nil
}
// LoadIssue loads issue information from database
func (pr *PullRequest) LoadIssue() (err error) {
return pr.loadIssue(x)
}
func (pr *PullRequest) loadIssue(e Engine) (err error) {
if pr.Issue != nil {
return nil
}
pr.Issue, err = getIssueByID(e, pr.IssueID)
return err
}
// LoadProtectedBranch loads the protected branch of the base branch
func (pr *PullRequest) LoadProtectedBranch() (err error) {
if pr.BaseRepo == nil {
if pr.BaseRepoID == 0 {
return nil
}
pr.BaseRepo, err = GetRepositoryByID(pr.BaseRepoID)
if err != nil {
return
}
}
pr.ProtectedBranch, err = GetProtectedBranchBy(pr.BaseRepo.ID, pr.BaseBranch)
return
}
// GetDefaultMergeMessage returns default message used when merging pull request
func (pr *PullRequest) GetDefaultMergeMessage() string {
if pr.HeadRepo == nil {
var err error
pr.HeadRepo, err = GetRepositoryByID(pr.HeadRepoID)
if err != nil {
log.Error("GetRepositoryById[%d]: %v", pr.HeadRepoID, err)
return ""
}
}
return fmt.Sprintf("Merge branch '%s' of %s/%s into %s", pr.HeadBranch, pr.MustHeadUserName(), pr.HeadRepo.Name, pr.BaseBranch)
}
// GetDefaultSquashMessage returns default message used when squash and merging pull request
func (pr *PullRequest) GetDefaultSquashMessage() string {
if err := pr.LoadIssue(); err != nil {
log.Error("LoadIssue: %v", err)
return ""
}
return fmt.Sprintf("%s (#%d)", pr.Issue.Title, pr.Issue.Index)
}
// GetGitRefName returns git ref for hidden pull request branch
func (pr *PullRequest) GetGitRefName() string {
return fmt.Sprintf("refs/pull/%d/head", pr.Index)
}
// APIFormat assumes following fields have been assigned with valid values:
// Required - Issue
// Optional - Merger
func (pr *PullRequest) APIFormat() *api.PullRequest {
return pr.apiFormat(x)
}
func (pr *PullRequest) apiFormat(e Engine) *api.PullRequest {
var (
baseBranch *git.Branch
headBranch *git.Branch
baseCommit *git.Commit
headCommit *git.Commit
err error
)
if err = pr.Issue.loadRepo(e); err != nil {
log.Error("loadRepo[%d]: %v", pr.ID, err)
return nil
}
apiIssue := pr.Issue.apiFormat(e)
if pr.BaseRepo == nil {
pr.BaseRepo, err = getRepositoryByID(e, pr.BaseRepoID)
if err != nil {
log.Error("GetRepositoryById[%d]: %v", pr.ID, err)
return nil
}
}
if pr.HeadRepo == nil {
pr.HeadRepo, err = getRepositoryByID(e, pr.HeadRepoID)
if err != nil {
log.Error("GetRepositoryById[%d]: %v", pr.ID, err)
return nil
}
}
if err = pr.Issue.loadRepo(e); err != nil {
log.Error("pr.Issue.loadRepo[%d]: %v", pr.ID, err)
return nil
}
apiPullRequest := &api.PullRequest{
ID: pr.ID,
URL: pr.Issue.HTMLURL(),
Index: pr.Index,
Poster: apiIssue.Poster,
Title: apiIssue.Title,
Body: apiIssue.Body,
Labels: apiIssue.Labels,
Milestone: apiIssue.Milestone,
Assignee: apiIssue.Assignee,
Assignees: apiIssue.Assignees,
State: apiIssue.State,
Comments: apiIssue.Comments,
HTMLURL: pr.Issue.HTMLURL(),
DiffURL: pr.Issue.DiffURL(),
PatchURL: pr.Issue.PatchURL(),
HasMerged: pr.HasMerged,
MergeBase: pr.MergeBase,
Deadline: apiIssue.Deadline,
Created: pr.Issue.CreatedUnix.AsTimePtr(),
Updated: pr.Issue.UpdatedUnix.AsTimePtr(),
}
baseBranch, err = pr.BaseRepo.GetBranch(pr.BaseBranch)
if err != nil {
if git.IsErrBranchNotExist(err) {
apiPullRequest.Base = nil
} else {
log.Error("GetBranch[%s]: %v", pr.BaseBranch, err)
return nil
}
} else {
apiBaseBranchInfo := &api.PRBranchInfo{
Name: pr.BaseBranch,
Ref: pr.BaseBranch,
RepoID: pr.BaseRepoID,
Repository: pr.BaseRepo.innerAPIFormat(e, AccessModeNone, false),
}
baseCommit, err = baseBranch.GetCommit()
if err != nil {
if git.IsErrNotExist(err) {
apiBaseBranchInfo.Sha = ""
} else {
log.Error("GetCommit[%s]: %v", baseBranch.Name, err)
return nil
}
} else {
apiBaseBranchInfo.Sha = baseCommit.ID.String()
}
apiPullRequest.Base = apiBaseBranchInfo
}
headBranch, err = pr.HeadRepo.GetBranch(pr.HeadBranch)
if err != nil {
if git.IsErrBranchNotExist(err) {
apiPullRequest.Head = nil
} else {
log.Error("GetBranch[%s]: %v", pr.HeadBranch, err)
return nil
}
} else {
apiHeadBranchInfo := &api.PRBranchInfo{
Name: pr.HeadBranch,
Ref: pr.HeadBranch,
RepoID: pr.HeadRepoID,
Repository: pr.HeadRepo.innerAPIFormat(e, AccessModeNone, false),
}
headCommit, err = headBranch.GetCommit()
if err != nil {
if git.IsErrNotExist(err) {
apiHeadBranchInfo.Sha = ""
} else {
log.Error("GetCommit[%s]: %v", headBranch.Name, err)
return nil
}
} else {
apiHeadBranchInfo.Sha = headCommit.ID.String()
}
apiPullRequest.Head = apiHeadBranchInfo
}
if pr.Status != PullRequestStatusChecking {
mergeable := pr.Status != PullRequestStatusConflict && !pr.IsWorkInProgress()
apiPullRequest.Mergeable = mergeable
}
if pr.HasMerged {
apiPullRequest.Merged = pr.MergedUnix.AsTimePtr()
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
}
// GetLastCommitStatus returns the last commit status for this pull request.
func (pr *PullRequest) GetLastCommitStatus() (status *CommitStatus, err error) {
if err = pr.GetHeadRepo(); err != nil {
return nil, err
}
if pr.HeadRepo == nil {
return nil, ErrPullRequestHeadRepoMissing{pr.ID, pr.HeadRepoID}
}
headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
if err != nil {
return nil, err
}
defer headGitRepo.Close()
lastCommitID, err := headGitRepo.GetBranchCommitID(pr.HeadBranch)
if err != nil {
return nil, err
}
err = pr.LoadBaseRepo()
if err != nil {
return nil, err
}
statusList, err := GetLatestCommitStatus(pr.BaseRepo, lastCommitID, 0)
if err != nil {
return nil, err
}
return CalcCommitStatus(statusList), nil
}
// MergeStyle represents the approach to merge commits into base branch.
type MergeStyle string
const (
// MergeStyleMerge create merge commit
MergeStyleMerge MergeStyle = "merge"
// MergeStyleRebase rebase before merging
MergeStyleRebase MergeStyle = "rebase"
// MergeStyleRebaseMerge rebase before merging with merge commit (--no-ff)
MergeStyleRebaseMerge MergeStyle = "rebase-merge"
// MergeStyleSquash squash commits into single commit before merging
MergeStyleSquash MergeStyle = "squash"
)
// CheckUserAllowedToMerge checks whether the user is allowed to merge
func (pr *PullRequest) CheckUserAllowedToMerge(doer *User) (err error) {
if doer == nil {
return ErrNotAllowedToMerge{
"Not signed in",
}
}
if pr.BaseRepo == nil {
if err = pr.GetBaseRepo(); err != nil {
return fmt.Errorf("GetBaseRepo: %v", err)
}
}
if protected, err := pr.BaseRepo.IsProtectedBranchForMerging(pr, pr.BaseBranch, doer); err != nil {
return fmt.Errorf("IsProtectedBranch: %v", err)
} else if protected {
return ErrNotAllowedToMerge{
"The branch is protected",
}
}
return nil
}
// SetMerged sets a pull request to merged and closes the corresponding issue
func (pr *PullRequest) SetMerged() (err error) {
if pr.HasMerged {
return fmt.Errorf("PullRequest[%d] already merged", pr.Index)
}
if pr.MergedCommitID == "" || pr.MergedUnix == 0 || pr.Merger == nil {
return fmt.Errorf("Unable to merge PullRequest[%d], some required fields are empty", pr.Index)
}
pr.HasMerged = true
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {
return err
}
if err = pr.loadIssue(sess); err != nil {
return err
}
if err = pr.Issue.loadRepo(sess); err != nil {
return err
}
if err = pr.Issue.Repo.getOwner(sess); err != nil {
return err
}
if err = pr.Issue.changeStatus(sess, pr.Merger, true); err != nil {
return fmt.Errorf("Issue.changeStatus: %v", err)
}
if _, err = sess.ID(pr.ID).Cols("has_merged, status, merged_commit_id, merger_id, merged_unix").Update(pr); err != nil {
return fmt.Errorf("update pull request: %v", err)
}
if err = sess.Commit(); err != nil {
return fmt.Errorf("Commit: %v", err)
}
return nil
}
// manuallyMerged checks if a pull request got manually merged
// When a pull request got manually merged mark the pull request as merged
func (pr *PullRequest) manuallyMerged() bool {
commit, err := pr.getMergeCommit()
if err != nil {
log.Error("PullRequest[%d].getMergeCommit: %v", pr.ID, err)
return false
}
if commit != nil {
pr.MergedCommitID = commit.ID.String()
pr.MergedUnix = timeutil.TimeStamp(commit.Author.When.Unix())
pr.Status = PullRequestStatusManuallyMerged
merger, _ := GetUserByEmail(commit.Author.Email)
// When the commit author is unknown set the BaseRepo owner as merger
if merger == nil {
if pr.BaseRepo.Owner == nil {
if err = pr.BaseRepo.getOwner(x); err != nil {
log.Error("BaseRepo.getOwner[%d]: %v", pr.ID, err)
return false
}
}
merger = pr.BaseRepo.Owner
}
pr.Merger = merger
pr.MergerID = merger.ID
if err = pr.SetMerged(); err != nil {
log.Error("PullRequest[%d].setMerged : %v", pr.ID, err)
return false
}
log.Info("manuallyMerged[%d]: Marked as manually merged into %s/%s by commit id: %s", pr.ID, pr.BaseRepo.Name, pr.BaseBranch, commit.ID.String())
return true
}
return false
}
// getMergeCommit checks if a pull request got merged
// Returns the git.Commit of the pull request if merged
func (pr *PullRequest) getMergeCommit() (*git.Commit, error) {
if pr.BaseRepo == nil {
var err error
pr.BaseRepo, err = GetRepositoryByID(pr.BaseRepoID)
if err != nil {
return nil, fmt.Errorf("GetRepositoryByID: %v", err)
}
}
indexTmpPath := filepath.Join(os.TempDir(), "gitea-"+pr.BaseRepo.Name+"-"+strconv.Itoa(time.Now().Nanosecond()))
defer os.Remove(indexTmpPath)
headFile := pr.GetGitRefName()
// Check if a pull request is merged into BaseBranch
_, stderr, err := process.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("isMerged (git merge-base --is-ancestor): %d", pr.BaseRepo.ID),
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
git.GitExecutable, "merge-base", "--is-ancestor", headFile, pr.BaseBranch)
if err != nil {
// Errors are signaled by a non-zero status that is not 1
if strings.Contains(err.Error(), "exit status 1") {
return nil, nil
}
return nil, fmt.Errorf("git merge-base --is-ancestor: %v %v", stderr, err)
}
commitIDBytes, err := ioutil.ReadFile(pr.BaseRepo.RepoPath() + "/" + headFile)
if err != nil {
return nil, fmt.Errorf("ReadFile(%s): %v", headFile, err)
}
commitID := string(commitIDBytes)
if len(commitID) < 40 {
return nil, fmt.Errorf(`ReadFile(%s): invalid commit-ID "%s"`, headFile, commitID)
}
cmd := commitID[:40] + ".." + pr.BaseBranch
// Get the commit from BaseBranch where the pull request got merged
mergeCommit, stderr, err := process.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("isMerged (git rev-list --ancestry-path --merges --reverse): %d", pr.BaseRepo.ID),
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
git.GitExecutable, "rev-list", "--ancestry-path", "--merges", "--reverse", cmd)
if err != nil {
return nil, fmt.Errorf("git rev-list --ancestry-path --merges --reverse: %v %v", stderr, err)
} else if len(mergeCommit) < 40 {
// PR was fast-forwarded, so just use last commit of PR
mergeCommit = commitID[:40]
}
gitRepo, err := git.OpenRepository(pr.BaseRepo.RepoPath())
if err != nil {
return nil, fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
commit, err := gitRepo.GetCommit(mergeCommit[:40])
if err != nil {
return nil, fmt.Errorf("GetCommit: %v", err)
}
return commit, 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(e Engine) (err error) {
if pr.BaseRepo == nil {
pr.BaseRepo, err = getRepositoryByID(e, pr.BaseRepoID)
if err != nil {
return fmt.Errorf("GetRepositoryByID: %v", err)
}
}
patchPath, err := pr.BaseRepo.patchPath(e, pr.Index)
if err != nil {
return fmt.Errorf("BaseRepo.PatchPath: %v", err)
}
// Fast fail if patch does not exist, this assumes data is corrupted.
if !com.IsFile(patchPath) {
log.Trace("PullRequest[%d].testPatch: ignored corrupted 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.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git read-tree): %d", pr.BaseRepo.ID),
[]string{"GIT_DIR=" + pr.BaseRepo.RepoPath(), "GIT_INDEX_FILE=" + indexTmpPath},
git.GitExecutable, "read-tree", pr.BaseBranch)
if err != nil {
return fmt.Errorf("git read-tree --index-output=%s %s: %v - %s", indexTmpPath, pr.BaseBranch, err, stderr)
}
prUnit, err := pr.BaseRepo.getUnit(e, UnitTypePullRequests)
if err != nil {
return err
}
prConfig := prUnit.PullRequestsConfig()
args := []string{"apply", "--check", "--cached"}
if prConfig.IgnoreWhitespaceConflicts {
args = append(args, "--ignore-whitespace")
}
args = append(args, patchPath)
pr.ConflictedFiles = []string{}
_, stderr, err = process.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git apply --check): %d", pr.BaseRepo.ID),
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
git.GitExecutable, args...)
if err != nil {
for i := range patchConflicts {
if strings.Contains(stderr, patchConflicts[i]) {
log.Trace("PullRequest[%d].testPatch (apply): has conflict: %s", pr.ID, stderr)
const prefix = "error: patch failed:"
pr.Status = PullRequestStatusConflict
pr.ConflictedFiles = make([]string, 0, 5)
scanner := bufio.NewScanner(strings.NewReader(stderr))
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, prefix) {
var found bool
var filepath = strings.TrimSpace(strings.Split(line[len(prefix):], ":")[0])
for _, f := range pr.ConflictedFiles {
if f == filepath {
found = true
break
}
}
if !found {
pr.ConflictedFiles = append(pr.ConflictedFiles, filepath)
}
}
// only list 10 conflicted files
if len(pr.ConflictedFiles) >= 10 {
break
}
}
if len(pr.ConflictedFiles) > 0 {
log.Trace("Found %d files conflicted: %v", len(pr.ConflictedFiles), pr.ConflictedFiles)
}
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) {
// Retry several times in case INSERT fails due to duplicate key for (repo_id, index); see #7887
i := 0
for {
if err = newPullRequestAttempt(repo, pull, labelIDs, uuids, pr, patch); err == nil {
return nil
}
if !IsErrNewIssueInsert(err) {
return err
}
if i++; i == issueMaxDupIndexAttempts {
break
}
log.Error("NewPullRequest: error attempting to insert the new issue; will retry. Original error: %v", err)
}
return fmt.Errorf("NewPullRequest: too many errors attempting to insert the new issue. Last error was: %v", err)
}
func newPullRequestAttempt(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte) (err error) {
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {
return err
}
if err = newIssue(sess, pull.Poster, NewIssueOptions{
Repo: repo,
Issue: pull,
LabelIDs: labelIDs,
Attachments: uuids,
IsPull: true,
}); err != nil {
if IsErrUserDoesNotHaveAccessToRepo(err) || IsErrNewIssueInsert(err) {
return err
}
return fmt.Errorf("newIssue: %v", err)
}
pr.Index = pull.Index
pr.BaseRepo = repo
pr.Status = PullRequestStatusChecking
if len(patch) > 0 {
if err = repo.savePatch(sess, pr.Index, patch); err != nil {
return fmt.Errorf("SavePatch: %v", err)
}
if err = pr.testPatch(sess); 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)
}
return nil
}
// GetUnmergedPullRequest returns 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
}
// GetLatestPullRequestByHeadInfo returns the latest pull request (regardless of its status)
// by given head information (repo and branch).
func GetLatestPullRequestByHeadInfo(repoID int64, branch string) (*PullRequest, error) {
pr := new(PullRequest)
has, err := x.
Where("head_repo_id = ? AND head_branch = ?", repoID, branch).
OrderBy("id DESC").
Get(pr)
if !has {
return nil, err
}
return pr, err
}
// 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, 0, 0, repoID, "", ""}
}
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 corrupted 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)
}
defer headGitRepo.Close()
// 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() {
if err := headGitRepo.RemoveRemote(tmpRemote); err != nil {
log.Error("UpdatePatch: RemoveRemote: %s", err)
}
}()
pr.MergeBase, _, err = headGitRepo.GetMergeBase(tmpRemote, pr.BaseBranch, 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 '%s'", pr.BaseRepoID, pr.GetGitRefName())
headRepoPath := pr.HeadRepo.RepoPath()
headGitRepo, err := git.OpenRepository(headRepoPath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
defer headGitRepo.Close()
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 func() {
if err := headGitRepo.RemoveRemote(tmpRemoteName); err != nil {
log.Error("PushToBaseRepo: RemoveRemote: %s", err)
}
}()
headFile := pr.GetGitRefName()
// Remove head in case there is a conflict.
file := path.Join(pr.BaseRepo.RepoPath(), headFile)
_ = os.Remove(file)
if err = git.Push(headRepoPath, git.PushOptions{
Remote: tmpRemoteName,
Branch: fmt.Sprintf("%s:%s", pr.HeadBranch, headFile),
Force: true,
}); 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("AddToTaskQueue.UpdateCols[%d].(add to queue): %v", pr.ID, err)
}
})
}
// checkAndUpdateStatus checks if pull request is possible to leaving 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 leaving the checking status.
if !pullRequestQueue.Exist(pr.ID) {
if err := pr.UpdateCols("status, conflicted_files"); err != nil {
log.Error("Update[%d]: %v", pr.ID, err)
}
}
}
// IsWorkInProgress determine if the Pull Request is a Work In Progress by its title
func (pr *PullRequest) IsWorkInProgress() bool {
if err := pr.LoadIssue(); err != nil {
log.Error("LoadIssue: %v", err)
return false
}
for _, prefix := range setting.Repository.PullRequest.WorkInProgressPrefixes {
if strings.HasPrefix(strings.ToUpper(pr.Issue.Title), prefix) {
return true
}
}
return false
}
// IsFilesConflicted determines if the Pull Request has changes conflicting with the target branch.
func (pr *PullRequest) IsFilesConflicted() bool {
return len(pr.ConflictedFiles) > 0
}
// GetWorkInProgressPrefix returns the prefix used to mark the pull request as a work in progress.
// It returns an empty string when none were found
func (pr *PullRequest) GetWorkInProgressPrefix() string {
if err := pr.LoadIssue(); err != nil {
log.Error("LoadIssue: %v", err)
return ""
}
for _, prefix := range setting.Repository.PullRequest.WorkInProgressPrefixes {
if strings.HasPrefix(strings.ToUpper(pr.Issue.Title), prefix) {
return pr.Issue.Title[0:len(prefix)]
}
}
return ""
}