265 lines
7.2 KiB
Go
265 lines
7.2 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"strings"
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"time"
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"github.com/Unknwon/com"
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"github.com/go-xorm/xorm"
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"github.com/gogits/gogs/modules/git"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/process"
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)
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type PullRequestType int
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const (
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PULL_REQUEST_GOGS PullRequestType = iota
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PLLL_ERQUEST_GIT
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)
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type PullRequestStatus int
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const (
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PULL_REQUEST_STATUS_CONFLICT PullRequestStatus = iota
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PULL_REQUEST_STATUS_CHECKING
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PULL_REQUEST_STATUS_MERGEABLE
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)
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// PullRequest represents relation between pull request and repositories.
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type PullRequest struct {
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ID int64 `xorm:"pk autoincr"`
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Type PullRequestType
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Status PullRequestStatus
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IssueID int64 `xorm:"INDEX"`
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Issue *Issue `xorm:"-"`
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Index int64
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HeadRepoID int64
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HeadRepo *Repository `xorm:"-"`
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BaseRepoID int64
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HeadUserName string
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HeadBranch string
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BaseBranch string
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MergeBase string `xorm:"VARCHAR(40)"`
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MergedCommitID string `xorm:"VARCHAR(40)"`
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HasMerged bool
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Merged time.Time
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MergerID int64
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Merger *User `xorm:"-"`
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}
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// Note: don't try to get Pull because will end up recursive querying.
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func (pr *PullRequest) AfterSet(colName string, _ xorm.Cell) {
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var err error
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switch colName {
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case "head_repo_id":
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// FIXME: shouldn't show error if it's known that head repository has been removed.
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pr.HeadRepo, err = GetRepositoryByID(pr.HeadRepoID)
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if err != nil {
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log.Error(3, "GetRepositoryByID[%d]: %v", pr.ID, err)
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}
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case "merger_id":
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if !pr.HasMerged {
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return
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}
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pr.Merger, err = GetUserByID(pr.MergerID)
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if err != nil {
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if IsErrUserNotExist(err) {
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pr.MergerID = -1
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pr.Merger = NewFakeUser()
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} else {
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log.Error(3, "GetUserByID[%d]: %v", pr.ID, err)
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}
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}
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case "merged":
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if !pr.HasMerged {
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return
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}
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pr.Merged = regulateTimeZone(pr.Merged)
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}
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}
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// CanAutoMerge returns true if this pull request can be merged automatically.
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func (pr *PullRequest) CanAutoMerge() bool {
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return pr.Status == PULL_REQUEST_STATUS_MERGEABLE
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}
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// Merge merges pull request to base repository.
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func (pr *PullRequest) Merge(doer *User, baseGitRepo *git.Repository) (err error) {
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sess := x.NewSession()
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defer sessionRelease(sess)
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if err = sess.Begin(); err != nil {
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return err
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}
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if err = pr.Issue.changeStatus(sess, doer, true); err != nil {
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return fmt.Errorf("Pull.changeStatus: %v", err)
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}
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headRepoPath := RepoPath(pr.HeadUserName, pr.HeadRepo.Name)
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headGitRepo, err := git.OpenRepository(headRepoPath)
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if err != nil {
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return fmt.Errorf("OpenRepository: %v", err)
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}
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pr.MergedCommitID, err = headGitRepo.GetCommitIdOfBranch(pr.HeadBranch)
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if err != nil {
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return fmt.Errorf("GetCommitIdOfBranch: %v", err)
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}
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if err = mergePullRequestAction(sess, doer, pr.Issue.Repo, pr.Issue); err != nil {
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return fmt.Errorf("mergePullRequestAction: %v", err)
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}
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pr.HasMerged = true
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pr.Merged = time.Now()
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pr.MergerID = doer.Id
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if _, err = sess.Id(pr.ID).AllCols().Update(pr); err != nil {
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return fmt.Errorf("update pull request: %v", err)
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}
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// Clone base repo.
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tmpBasePath := path.Join("data/tmp/repos", com.ToStr(time.Now().Nanosecond())+".git")
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os.MkdirAll(path.Dir(tmpBasePath), os.ModePerm)
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defer os.RemoveAll(path.Dir(tmpBasePath))
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var stderr string
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if _, stderr, err = process.ExecTimeout(5*time.Minute,
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fmt.Sprintf("PullRequest.Merge(git clone): %s", tmpBasePath),
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"git", "clone", baseGitRepo.Path, tmpBasePath); err != nil {
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return fmt.Errorf("git clone: %s", stderr)
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}
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// Check out base branch.
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if _, stderr, err = process.ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge(git checkout): %s", tmpBasePath),
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"git", "checkout", pr.BaseBranch); err != nil {
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return fmt.Errorf("git checkout: %s", stderr)
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}
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// Pull commits.
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if _, stderr, err = process.ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge(git pull): %s", tmpBasePath),
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"git", "pull", headRepoPath, pr.HeadBranch); err != nil {
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return fmt.Errorf("git pull[%s / %s -> %s]: %s", headRepoPath, pr.HeadBranch, tmpBasePath, stderr)
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}
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// Push back to upstream.
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if _, stderr, err = process.ExecDir(-1, tmpBasePath,
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fmt.Sprintf("PullRequest.Merge(git push): %s", tmpBasePath),
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"git", "push", baseGitRepo.Path, pr.BaseBranch); err != nil {
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return fmt.Errorf("git push: %s", stderr)
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}
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return sess.Commit()
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}
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// 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) (err error) {
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sess := x.NewSession()
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defer sessionRelease(sess)
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if err = sess.Begin(); err != nil {
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return err
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}
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if err = newIssue(sess, repo, pull, labelIDs, uuids, true); err != nil {
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return fmt.Errorf("newIssue: %v", err)
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}
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// Notify watchers.
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act := &Action{
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ActUserID: pull.Poster.Id,
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ActUserName: pull.Poster.Name,
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ActEmail: pull.Poster.Email,
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OpType: CREATE_PULL_REQUEST,
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Content: fmt.Sprintf("%d|%s", pull.Index, pull.Name),
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RepoID: repo.ID,
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RepoUserName: repo.Owner.Name,
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RepoName: repo.Name,
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IsPrivate: repo.IsPrivate,
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}
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if err = notifyWatchers(sess, act); err != nil {
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return err
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}
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// Test apply patch.
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if err = repo.UpdateLocalCopy(); err != nil {
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return fmt.Errorf("UpdateLocalCopy: %v", err)
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}
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repoPath, err := repo.RepoPath()
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if err != nil {
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return fmt.Errorf("RepoPath: %v", err)
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}
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patchPath := path.Join(repoPath, "pulls", com.ToStr(pull.ID)+".patch")
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os.MkdirAll(path.Dir(patchPath), os.ModePerm)
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if err = ioutil.WriteFile(patchPath, patch, 0644); err != nil {
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return fmt.Errorf("save patch: %v", err)
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}
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pr.Status = PULL_REQUEST_STATUS_MERGEABLE
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_, stderr, err := process.ExecDir(-1, repo.LocalCopyPath(),
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fmt.Sprintf("NewPullRequest(git apply --check): %d", repo.ID),
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"git", "apply", "--check", patchPath)
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if err != nil {
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if strings.Contains(stderr, "patch does not apply") {
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pr.Status = PULL_REQUEST_STATUS_CONFLICT
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} else {
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return fmt.Errorf("git apply --check: %v - %s", err, stderr)
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}
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}
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pr.IssueID = pull.ID
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pr.Index = pull.Index
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if _, err = sess.Insert(pr); err != nil {
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return fmt.Errorf("insert pull repo: %v", err)
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}
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return sess.Commit()
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}
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// GetUnmergedPullRequest returnss a pull request that is open and has not been merged
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// by given head/base and repo/branch.
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func GetUnmergedPullRequest(headRepoID, baseRepoID int64, headBranch, baseBranch string) (*PullRequest, error) {
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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=?",
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headRepoID, headBranch, baseRepoID, baseBranch, false, false).
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Join("INNER", "issue", "issue.id=pull_request.issue_id").Get(pr)
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if err != nil {
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return nil, err
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} else if !has {
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return nil, ErrPullRequestNotExist{0, 0, headRepoID, baseRepoID, headBranch, baseBranch}
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}
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return pr, nil
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}
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// GetPullRequestByIssueID returns pull request by given issue ID.
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func GetPullRequestByIssueID(issueID int64) (*PullRequest, error) {
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pr := &PullRequest{
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IssueID: issueID,
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}
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has, err := x.Get(pr)
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if err != nil {
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return nil, err
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} else if !has {
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return nil, ErrPullRequestNotExist{0, issueID, 0, 0, "", ""}
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}
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return pr, nil
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}
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