forgejo-federation/models/pull.go

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// 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"
"io/ioutil"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"time"
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"code.gitea.io/git"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/sync"
"code.gitea.io/gitea/modules/util"
api "code.gitea.io/sdk/gitea"
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"github.com/Unknwon/com"
"github.com/go-xorm/xorm"
)
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var pullRequestQueue = sync.NewUniqueQueue(setting.Repository.PullRequestQueueLength)
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// PullRequestType defines pull request type
type PullRequestType int
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// Enumerate all the pull request types
const (
PullRequestGitea PullRequestType = iota
PullRequestGit
)
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// PullRequestStatus defines pull request status
type PullRequestStatus int
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// 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
IssueID int64 `xorm:"INDEX"`
Issue *Issue `xorm:"-"`
Index int64
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HeadRepoID int64 `xorm:"INDEX"`
HeadRepo *Repository `xorm:"-"`
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BaseRepoID int64 `xorm:"INDEX"`
BaseRepo *Repository `xorm:"-"`
HeadUserName string
HeadBranch string
BaseBranch string
MergeBase string `xorm:"VARCHAR(40)"`
HasMerged bool `xorm:"INDEX"`
MergedCommitID string `xorm:"VARCHAR(40)"`
MergerID int64 `xorm:"INDEX"`
Merger *User `xorm:"-"`
MergedUnix util.TimeStamp `xorm:"updated INDEX"`
}
// 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
}
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// LoadAttributes loads pull request attributes from database
func (pr *PullRequest) LoadAttributes() error {
return pr.loadAttributes(x)
}
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// 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
}
// 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(4, "GetRepositoryById[%d]: %v", pr.HeadRepoID, err)
return ""
}
}
return fmt.Sprintf("Merge branch '%s' of %s/%s into %s", pr.HeadBranch, pr.HeadUserName, 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(4, "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)
}
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// 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
}
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apiBaseBranchInfo := &api.PRBranchInfo{
Name: pr.BaseBranch,
Ref: pr.BaseBranch,
Sha: baseCommit.ID.String(),
RepoID: pr.BaseRepoID,
Repository: pr.BaseRepo.APIFormat(AccessModeNone),
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}
apiHeadBranchInfo := &api.PRBranchInfo{
Name: pr.HeadBranch,
Ref: pr.HeadBranch,
Sha: headCommit.ID.String(),
RepoID: pr.HeadRepoID,
Repository: pr.HeadRepo.APIFormat(AccessModeNone),
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}
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,
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Assignees: apiIssue.Assignees,
State: apiIssue.State,
Comments: apiIssue.Comments,
HTMLURL: pr.Issue.HTMLURL(),
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DiffURL: pr.Issue.DiffURL(),
PatchURL: pr.Issue.PatchURL(),
HasMerged: pr.HasMerged,
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Base: apiBaseBranchInfo,
Head: apiHeadBranchInfo,
MergeBase: pr.MergeBase,
Issue due date (#3794) * Started adding deadline to ui * Implemented basic issue due date managing * Improved UI for due date managing * Added at least write access to the repo in order to modify issue due dates * Ui improvements * Added issue comments creation when adding/modifying/removing a due date * Show due date in issue list * Added api support for issue due dates * Fixed lint suggestions * Added deadline to sdk * Updated css * Added support for adding/modifiying deadlines for pull requests via api * Fixed comments not created when updating or removing a deadline * update sdk (will do properly once go-gitea/go-sdk#103 is merged) * enhanced updateIssueDeadline * Removed unnessecary Issue.DeadlineString * UI improvements * Small improvments to comment creation + ui & validation improvements * Check if an issue is overdue is now a seperate function * Updated go-sdk with govendor as it was merged * Simplified isOverdue method * removed unessecary deadline to 0 set * Update swagger definitions * Added missing return * Added an explanary comment * Improved updateIssueDeadline method so it'll only update `deadline_unix` * Small changes and improvements * no need to explicitly load the issue when updating a deadline, just use whats already there * small optimisations * Added check if a deadline was modified before updating it * Moved comment creating logic into its own function * Code cleanup for creating deadline comment * locale improvement * When modifying a deadline, the old deadline is saved with the comment * small improvments to xorm session handling when updating an issue deadline + style nitpicks * style nitpicks * Moved checking for if the user has write acces to middleware
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Deadline: apiIssue.Deadline,
Created: pr.Issue.CreatedUnix.AsTimePtr(),
Updated: pr.Issue.UpdatedUnix.AsTimePtr(),
}
if pr.Status != PullRequestStatusChecking {
mergeable := pr.Status != PullRequestStatusConflict
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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) {
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return fmt.Errorf("getRepositoryByID(head): %v", err)
}
return nil
}
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// GetHeadRepo loads the head repository
func (pr *PullRequest) GetHeadRepo() error {
return pr.getHeadRepo(x)
}
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// 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 {
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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
}
// 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"
// 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.BaseBranch, doer); err != nil {
return fmt.Errorf("IsProtectedBranch: %v", err)
} else if protected {
return ErrNotAllowedToMerge{
"The branch is protected",
}
}
return nil
}
// 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, mergeStyle MergeStyle, message string) (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)
}
prUnit, err := pr.BaseRepo.GetUnit(UnitTypePullRequests)
if err != nil {
return err
}
prConfig := prUnit.PullRequestsConfig()
if err := pr.CheckUserAllowedToMerge(doer); err != nil {
return fmt.Errorf("CheckUserAllowedToMerge: %v", err)
}
// Check if merge style is correct and allowed
if !prConfig.IsMergeStyleAllowed(mergeStyle) {
return ErrInvalidMergeStyle{pr.BaseRepo.ID, mergeStyle}
}
defer func() {
go HookQueue.Add(pr.BaseRepo.ID)
go AddTestPullRequestTask(doer, pr.BaseRepo.ID, pr.BaseBranch, false)
}()
headRepoPath := RepoPath(pr.HeadUserName, pr.HeadRepo.Name)
// Clone base repo.
tmpBasePath := path.Join(LocalCopyPath(), "merge-"+com.ToStr(time.Now().Nanosecond())+".git")
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if err := os.MkdirAll(path.Dir(tmpBasePath), os.ModePerm); err != nil {
return fmt.Errorf("Failed to create dir %s: %v", tmpBasePath, err)
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}
defer os.RemoveAll(path.Dir(tmpBasePath))
var stderr string
if _, stderr, err = process.GetManager().ExecTimeout(5*time.Minute,
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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.GetManager().ExecDir(-1, tmpBasePath,
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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.GetManager().ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge (git remote add): %s", tmpBasePath),
"git", "remote", "add", "head_repo", headRepoPath); err != nil {
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return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
// Merge commits.
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge (git fetch): %s", tmpBasePath),
"git", "fetch", "head_repo"); err != nil {
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return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
switch mergeStyle {
case MergeStyleMerge:
if _, stderr, err = process.GetManager().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)
}
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sig := doer.NewGitSig()
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git merge): %s", tmpBasePath),
"git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", message); err != nil {
return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, stderr)
}
case MergeStyleRebase:
// Checkout head branch
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git checkout): %s", tmpBasePath),
"git", "checkout", "-b", "head_repo_"+pr.HeadBranch, "head_repo/"+pr.HeadBranch); err != nil {
return fmt.Errorf("git checkout: %s", stderr)
}
// Rebase before merging
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git rebase): %s", tmpBasePath),
"git", "rebase", "-q", pr.BaseBranch); err != nil {
return fmt.Errorf("git rebase [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
// Checkout base branch again
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git checkout): %s", tmpBasePath),
"git", "checkout", pr.BaseBranch); err != nil {
return fmt.Errorf("git checkout: %s", stderr)
}
// Merge fast forward
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git rebase): %s", tmpBasePath),
"git", "merge", "--ff-only", "-q", "head_repo_"+pr.HeadBranch); err != nil {
return fmt.Errorf("git merge --ff-only [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
case MergeStyleSquash:
// Merge with squash
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git squash): %s", tmpBasePath),
"git", "merge", "-q", "--squash", "head_repo/"+pr.HeadBranch); err != nil {
return fmt.Errorf("git merge --squash [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
sig := pr.Issue.Poster.NewGitSig()
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git squash): %s", tmpBasePath),
"git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", message); err != nil {
return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, stderr)
}
default:
return ErrInvalidMergeStyle{pr.BaseRepo.ID, mergeStyle}
}
// Push back to upstream.
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge (git push): %s", tmpBasePath),
"git", "push", baseGitRepo.Path, pr.BaseBranch); err != nil {
return fmt.Errorf("git push: %s", stderr)
}
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pr.MergedCommitID, err = baseGitRepo.GetBranchCommitID(pr.BaseBranch)
if err != nil {
return fmt.Errorf("GetBranchCommit: %v", err)
}
pr.MergedUnix = util.TimeStampNow()
pr.Merger = doer
pr.MergerID = doer.ID
if err = pr.setMerged(); err != nil {
log.Error(4, "setMerged [%d]: %v", pr.ID, err)
}
if err = MergePullRequestAction(doer, pr.Issue.Repo, pr.Issue); err != nil {
log.Error(4, "MergePullRequestAction [%d]: %v", pr.ID, err)
}
// Reset cached commit count
cache.Remove(pr.Issue.Repo.GetCommitsCountCacheKey(pr.BaseBranch, true))
// Reload pull request information.
if err = pr.LoadAttributes(); err != nil {
log.Error(4, "LoadAttributes: %v", err)
return nil
}
mode, _ := AccessLevel(doer.ID, pr.Issue.Repo)
if err = PrepareWebhooks(pr.Issue.Repo, HookEventPullRequest, &api.PullRequestPayload{
Action: api.HookIssueClosed,
Index: pr.Index,
PullRequest: pr.APIFormat(),
Repository: pr.Issue.Repo.APIFormat(mode),
Sender: doer.APIFormat(),
}); err != nil {
log.Error(4, "PrepareWebhooks: %v", err)
} else {
go HookQueue.Add(pr.Issue.Repo.ID)
}
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l, err := baseGitRepo.CommitsBetweenIDs(pr.MergedCommitID, pr.MergeBase)
if err != nil {
log.Error(4, "CommitsBetweenIDs: %v", err)
return nil
}
// It is possible that head branch is not fully sync with base branch for merge commits,
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// so we need to get latest head commit and append merge commit manually
// to avoid strange diff commits produced.
mergeCommit, err := baseGitRepo.GetBranchCommit(pr.BaseBranch)
if err != nil {
log.Error(4, "GetBranchCommit: %v", err)
return nil
}
if mergeStyle == MergeStyleMerge {
l.PushFront(mergeCommit)
}
p := &api.PushPayload{
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Ref: git.BranchPrefix + pr.BaseBranch,
Before: pr.MergeBase,
After: mergeCommit.ID.String(),
CompareURL: setting.AppURL + pr.BaseRepo.ComposeCompareURL(pr.MergeBase, pr.MergedCommitID),
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Commits: ListToPushCommits(l).ToAPIPayloadCommits(pr.BaseRepo.HTMLURL()),
Repo: pr.BaseRepo.APIFormat(mode),
Pusher: pr.HeadRepo.MustOwner().APIFormat(),
Sender: doer.APIFormat(),
}
if err = PrepareWebhooks(pr.BaseRepo, HookEventPush, p); err != nil {
log.Error(4, "PrepareWebhooks: %v", err)
} else {
go HookQueue.Add(pr.BaseRepo.ID)
}
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, pr.Issue.Repo, 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(4, "PullRequest[%d].getMergeCommit: %v", pr.ID, err)
return false
}
if commit != nil {
pr.MergedCommitID = commit.ID.String()
pr.MergedUnix = util.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(4, "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(4, "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", "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", "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)
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} 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)
}
commit, err := gitRepo.GetCommit(mergeCommit[:40])
if err != nil {
return nil, fmt.Errorf("GetCommit: %v", err)
}
return commit, nil
}
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// patchConflicts is a list of conflict description from Git.
var patchConflicts = []string{
"patch does not apply",
"already exists in working directory",
"unrecognized input",
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"error:",
}
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// 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)
}
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// Fast fail if patch does not exist, this assumes data is corrupted.
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if !com.IsFile(patchPath) {
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log.Trace("PullRequest[%d].testPatch: ignored corrupted data", pr.ID)
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return nil
}
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repoWorkingPool.CheckIn(com.ToStr(pr.BaseRepoID))
defer repoWorkingPool.CheckOut(com.ToStr(pr.BaseRepoID))
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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", "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(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)
_, 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", args...)
if err != nil {
for i := range patchConflicts {
if strings.Contains(stderr, patchConflicts[i]) {
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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.
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func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte, assigneeIDs []int64) (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,
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LabelIDs: labelIDs,
Attachments: uuids,
IsPull: true,
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AssigneeIDs: assigneeIDs,
}); err != nil {
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if IsErrUserDoesNotHaveAccessToRepo(err) {
return err
}
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)
}
UpdateIssueIndexer(pull.ID)
if err = NotifyWatchers(&Action{
ActUserID: pull.Poster.ID,
ActUser: pull.Poster,
OpType: ActionCreatePullRequest,
Content: fmt.Sprintf("%d|%s", pull.Index, pull.Title),
RepoID: repo.ID,
Repo: repo,
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
mode, _ := AccessLevel(pull.Poster.ID, repo)
if err = PrepareWebhooks(repo, HookEventPullRequest, &api.PullRequestPayload{
Action: api.HookIssueOpened,
Index: pull.Index,
PullRequest: pr.APIFormat(),
Repository: repo.APIFormat(mode),
Sender: pull.Poster.APIFormat(),
}); err != nil {
log.Error(4, "PrepareWebhooks: %v", err)
} else {
go HookQueue.Add(repo.ID)
}
return nil
}
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// PullRequestsOptions holds the options for PRs
type PullRequestsOptions struct {
Page int
State string
SortType string
Labels []string
MilestoneID int64
}
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func listPullRequestStatement(baseRepoID int64, opts *PullRequestsOptions) (*xorm.Session, error) {
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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")
}
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if labelIDs, err := base.StringsToInt64s(opts.Labels); err != nil {
return nil, err
} else if len(labelIDs) > 0 {
sess.Join("INNER", "issue_label", "issue.id = issue_label.issue_id").
In("issue_label.label_id", labelIDs)
}
if opts.MilestoneID > 0 {
sess.And("issue.milestone_id=?", opts.MilestoneID)
}
return sess, nil
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}
// 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
}
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countSession, err := listPullRequestStatement(baseRepoID, opts)
if err != nil {
log.Error(4, "listPullRequestStatement", err)
return nil, 0, err
}
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maxResults, err := countSession.Count(new(PullRequest))
if err != nil {
log.Error(4, "Count PRs", err)
return nil, maxResults, err
}
prs := make([]*PullRequest, 0, ItemsPerPage)
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findSession, err := listPullRequestStatement(baseRepoID, opts)
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sortIssuesSession(findSession, opts.SortType)
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if err != nil {
log.Error(4, "listPullRequestStatement", err)
return nil, maxResults, err
}
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findSession.Limit(ItemsPerPage, (opts.Page-1)*ItemsPerPage)
return prs, maxResults, findSession.Find(&prs)
}
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// 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)
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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
}
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// GetUnmergedPullRequestsByHeadInfo returns 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)
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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)
}
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// GetUnmergedPullRequestsByBaseInfo returns 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)
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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)
}
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// 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 {
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return nil, ErrPullRequestNotExist{0, 0, 0, repoID, "", ""}
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}
if err = pr.LoadAttributes(); err != nil {
return nil, err
}
if err = pr.LoadIssue(); err != nil {
return nil, err
}
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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) {
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pr := &PullRequest{
IssueID: issueID,
}
has, err := e.Get(pr)
if err != nil {
return nil, err
} else if !has {
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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
}
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// 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
}
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// UpdatePatch generates and saves a new patch.
func (pr *PullRequest) UpdatePatch() (err error) {
if err = pr.GetHeadRepo(); err != nil {
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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 {
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return fmt.Errorf("GetBaseRepo: %v", err)
}
2015-10-25 12:40:22 +05:30
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headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
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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)
}
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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
}
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// 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())
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headRepoPath := pr.HeadRepo.RepoPath()
headGitRepo, err := git.OpenRepository(headRepoPath)
if err != nil {
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return fmt.Errorf("OpenRepository: %v", err)
}
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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
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defer headGitRepo.RemoveRemote(tmpRemoteName)
headFile := pr.GetGitRefName()
// Remove head in case there is a conflict.
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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 {
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return fmt.Errorf("Push: %v", err)
}
return nil
}
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// AddToTaskQueue adds itself to pull request test task queue.
func (pr *PullRequest) AddToTaskQueue() {
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go pullRequestQueue.AddFunc(pr.ID, func() {
pr.Status = PullRequestStatusChecking
if err := pr.UpdateCols("status"); err != nil {
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log.Error(5, "AddToTaskQueue.UpdateCols[%d].(add to queue): %v", pr.ID, err)
}
})
}
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// 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))
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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
}
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// 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)
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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
}
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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 {
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pr.AddToTaskQueue()
}
}
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// ChangeUsernameInPullRequests changes the name of head_user_name
func ChangeUsernameInPullRequests(oldUserName, newUserName string) error {
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pr := PullRequest{
HeadUserName: strings.ToLower(newUserName),
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}
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_, err := x.
Cols("head_user_name").
Where("head_user_name = ?", strings.ToLower(oldUserName)).
Update(pr)
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return err
}
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// checkAndUpdateStatus checks if pull request is possible to leaving checking status,
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// 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
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}
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// Make sure there is no waiting test to process before leaving the checking status.
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if !pullRequestQueue.Exist(pr.ID) {
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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)
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err := x.Where("status = ?", PullRequestStatusChecking).Find(&prs)
if err != nil {
log.Error(3, "Find Checking PRs", err)
return
}
var checkedPRs = make(map[int64]struct{})
// Update pull request status.
for _, pr := range prs {
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checkedPRs[pr.ID] = struct{}{}
if err := pr.GetBaseRepo(); err != nil {
log.Error(3, "GetBaseRepo: %v", err)
continue
}
if pr.manuallyMerged() {
continue
}
if err := pr.testPatch(); err != nil {
log.Error(3, "testPatch: %v", err)
continue
}
pr.checkAndUpdateStatus()
}
// Start listening on new test requests.
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for prID := range pullRequestQueue.Queue() {
log.Trace("TestPullRequests[%v]: processing test task", prID)
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pullRequestQueue.Remove(prID)
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id := com.StrTo(prID).MustInt64()
if _, ok := checkedPRs[id]; ok {
continue
}
pr, err := GetPullRequestByID(id)
if err != nil {
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log.Error(4, "GetPullRequestByID[%s]: %v", prID, err)
continue
} else if pr.manuallyMerged() {
continue
} else if err = pr.testPatch(); err != nil {
log.Error(4, "testPatch[%d]: %v", pr.ID, err)
continue
}
pr.checkAndUpdateStatus()
}
}
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// InitTestPullRequests runs the task to test all the checking status pull requests
func InitTestPullRequests() {
go TestPullRequests()
}