From 0f05470cb84a4dcfd00e69e5af51b4420b74e9d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kim=20=22BKC=22=20Carlb=C3=A4cker?=
<kim.carlbacker@gmail.com>
Date: Fri, 2 Dec 2016 12:10:39 +0100
Subject: [PATCH] [API] Pull Requests (#248)
---
models/error.go | 22 ++
models/issue.go | 16 ++
models/pull.go | 84 +++++++
modules/context/api.go | 22 ++
routers/api/v1/api.go | 15 ++
routers/api/v1/repo/pull.go | 433 ++++++++++++++++++++++++++++++++++++
6 files changed, 592 insertions(+)
create mode 100644 routers/api/v1/repo/pull.go
diff --git a/models/error.go b/models/error.go
index 33815cdc96..d11a9eeb1f 100644
--- a/models/error.go
+++ b/models/error.go
@@ -584,6 +584,28 @@ func (err ErrPullRequestNotExist) Error() string {
err.ID, err.IssueID, err.HeadRepoID, err.BaseRepoID, err.HeadBarcnh, err.BaseBranch)
}
+// ErrPullRequestAlreadyExists represents a "PullRequestAlreadyExists"-error
+type ErrPullRequestAlreadyExists struct {
+ ID int64
+ IssueID int64
+ HeadRepoID int64
+ BaseRepoID int64
+ HeadBranch string
+ BaseBranch string
+}
+
+// IsErrPullRequestAlreadyExists checks if an error is a ErrPullRequestAlreadyExists.
+func IsErrPullRequestAlreadyExists(err error) bool {
+ _, ok := err.(ErrPullRequestAlreadyExists)
+ return ok
+}
+
+// Error does pretty-printing :D
+func (err ErrPullRequestAlreadyExists) Error() string {
+ return fmt.Sprintf("pull request already exists for these targets [id: %d, issue_id: %d, head_repo_id: %d, base_repo_id: %d, head_branch: %s, base_branch: %s]",
+ err.ID, err.IssueID, err.HeadRepoID, err.BaseRepoID, err.HeadBranch, err.BaseBranch)
+}
+
// _________ __
// \_ ___ \ ____ _____ _____ ____ _____/ |_
// / \ \/ / _ \ / \ / \_/ __ \ / \ __\
diff --git a/models/issue.go b/models/issue.go
index 990d4a4bc5..7ef3d00e41 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -170,6 +170,22 @@ func (issue *Issue) HTMLURL() string {
return fmt.Sprintf("%s/%s/%d", issue.Repo.HTMLURL(), path, issue.Index)
}
+// DiffURL returns the absolute URL to this diff
+func (issue *Issue) DiffURL() string {
+ if issue.IsPull {
+ return fmt.Sprintf("%s/pulls/%d.diff", issue.Repo.HTMLURL(), issue.Index)
+ }
+ return ""
+}
+
+// PatchURL returns the absolute URL to this patch
+func (issue *Issue) PatchURL() string {
+ if issue.IsPull {
+ return fmt.Sprintf("%s/pulls/%d.patch", issue.Repo.HTMLURL(), issue.Index)
+ }
+ return ""
+}
+
// State returns string representation of issue status.
func (issue *Issue) State() api.StateType {
if issue.IsClosed {
diff --git a/models/pull.go b/models/pull.go
index eef9a7557b..daed84bf22 100644
--- a/models/pull.go
+++ b/models/pull.go
@@ -121,7 +121,26 @@ func (pr *PullRequest) LoadIssue() (err error) {
// Required - Issue
// Optional - Merger
func (pr *PullRequest) APIFormat() *api.PullRequest {
+
apiIssue := pr.Issue.APIFormat()
+ baseBranch, _ := pr.BaseRepo.GetBranch(pr.BaseBranch)
+ baseCommit, _ := baseBranch.GetCommit()
+ headBranch, _ := pr.HeadRepo.GetBranch(pr.HeadBranch)
+ headCommit, _ := headBranch.GetCommit()
+ apiBaseBranchInfo := &api.PRBranchInfo{
+ Name: pr.BaseBranch,
+ Ref: pr.BaseBranch,
+ Sha: baseCommit.ID.String(),
+ RepoID: pr.BaseRepoID,
+ Repository: pr.BaseRepo.APIFormat(nil),
+ }
+ apiHeadBranchInfo := &api.PRBranchInfo{
+ Name: pr.HeadBranch,
+ Ref: pr.HeadBranch,
+ Sha: headCommit.ID.String(),
+ RepoID: pr.HeadRepoID,
+ Repository: pr.HeadRepo.APIFormat(nil),
+ }
apiPullRequest := &api.PullRequest{
ID: pr.ID,
Index: pr.Index,
@@ -134,7 +153,12 @@ func (pr *PullRequest) APIFormat() *api.PullRequest {
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 {
@@ -472,6 +496,46 @@ func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []str
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) {
@@ -512,6 +576,26 @@ func GetUnmergedPullRequestsByBaseInfo(repoID int64, branch string) ([]*PullRequ
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, "", ""}
+ }
+
+ pr.LoadAttributes()
+ pr.LoadIssue()
+
+ return pr, nil
+}
+
func getPullRequestByID(e Engine, id int64) (*PullRequest, error) {
pr := new(PullRequest)
has, err := e.Id(id).Get(pr)
diff --git a/modules/context/api.go b/modules/context/api.go
index 7706e9c499..7a3ff990b6 100644
--- a/modules/context/api.go
+++ b/modules/context/api.go
@@ -8,6 +8,7 @@ import (
"fmt"
"strings"
+ "code.gitea.io/git"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/log"
@@ -103,3 +104,24 @@ func ExtractOwnerAndRepo() macaron.Handler {
ctx.Data["Repository"] = repo
}
}
+
+// ReferencesGitRepo injects the GitRepo into the Context
+func ReferencesGitRepo() macaron.Handler {
+ return func(ctx *APIContext) {
+ // Empty repository does not have reference information.
+ if ctx.Repo.Repository.IsBare {
+ return
+ }
+
+ // For API calls.
+ if ctx.Repo.GitRepo == nil {
+ repoPath := models.RepoPath(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name)
+ gitRepo, err := git.OpenRepository(repoPath)
+ if err != nil {
+ ctx.Error(500, "RepoRef Invalid repo "+repoPath, err)
+ return
+ }
+ ctx.Repo.GitRepo = gitRepo
+ }
+ }
+}
diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index 506a615624..b920a23593 100644
--- a/routers/api/v1/api.go
+++ b/routers/api/v1/api.go
@@ -167,6 +167,13 @@ func mustEnableIssues(ctx *context.APIContext) {
}
}
+func mustAllowPulls(ctx *context.Context) {
+ if !ctx.Repo.Repository.AllowsPulls() {
+ ctx.Status(404)
+ return
+ }
+}
+
// RegisterRoutes registers all v1 APIs routes to web application.
// FIXME: custom form error response
func RegisterRoutes(m *macaron.Macaron) {
@@ -305,6 +312,14 @@ func RegisterRoutes(m *macaron.Macaron) {
Delete(reqRepoWriter(), repo.DeleteMilestone)
})
m.Get("/editorconfig/:filename", context.RepoRef(), repo.GetEditorconfig)
+ m.Group("/pulls", func() {
+ m.Combo("").Get(bind(api.ListPullRequestsOptions{}), repo.ListPullRequests).Post(reqRepoWriter(), bind(api.CreatePullRequestOption{}), repo.CreatePullRequest)
+ m.Group("/:index", func() {
+ m.Combo("").Get(repo.GetPullRequest).Patch(reqRepoWriter(), bind(api.EditPullRequestOption{}), repo.EditPullRequest)
+ m.Combo("/merge").Get(repo.IsPullRequestMerged).Post(reqRepoWriter(), repo.MergePullRequest)
+ })
+
+ }, mustAllowPulls, context.ReferencesGitRepo())
}, repoAssignment())
}, reqToken())
diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
new file mode 100644
index 0000000000..4c10024bfb
--- /dev/null
+++ b/routers/api/v1/repo/pull.go
@@ -0,0 +1,433 @@
+// Copyright 2016 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 repo
+
+import (
+ "fmt"
+ "strings"
+
+ "code.gitea.io/git"
+ "code.gitea.io/gitea/models"
+ "code.gitea.io/gitea/modules/context"
+ "code.gitea.io/gitea/modules/log"
+
+ api "code.gitea.io/sdk/gitea"
+)
+
+// ListPullRequests returns a list of all PRs
+func ListPullRequests(ctx *context.APIContext, form api.ListPullRequestsOptions) {
+ prs, maxResults, err := models.PullRequests(ctx.Repo.Repository.ID, &models.PullRequestsOptions{
+ Page: ctx.QueryInt("page"),
+ State: ctx.QueryTrim("state"),
+ SortType: ctx.QueryTrim("sort"),
+ Labels: ctx.QueryStrings("labels"),
+ MilestoneID: ctx.QueryInt64("milestone"),
+ })
+
+ /*prs, maxResults, err := models.PullRequests(ctx.Repo.Repository.ID, &models.PullRequestsOptions{
+ Page: form.Page,
+ State: form.State,
+ })*/
+ if err != nil {
+ ctx.Error(500, "PullRequests", err)
+ return
+ }
+
+ apiPrs := make([]*api.PullRequest, len(prs))
+ for i := range prs {
+ prs[i].LoadIssue()
+ prs[i].LoadAttributes()
+ prs[i].GetBaseRepo()
+ prs[i].GetHeadRepo()
+ apiPrs[i] = prs[i].APIFormat()
+ }
+
+ ctx.SetLinkHeader(int(maxResults), models.ItemsPerPage)
+ ctx.JSON(200, &apiPrs)
+}
+
+// GetPullRequest returns a single PR based on index
+func GetPullRequest(ctx *context.APIContext) {
+ pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
+ if err != nil {
+ if models.IsErrPullRequestNotExist(err) {
+ ctx.Status(404)
+ } else {
+ ctx.Error(500, "GetPullRequestByIndex", err)
+ }
+ return
+ }
+
+ pr.GetBaseRepo()
+ pr.GetHeadRepo()
+ ctx.JSON(200, pr.APIFormat())
+}
+
+// CreatePullRequest does what it says
+func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption) {
+ var (
+ repo = ctx.Repo.Repository
+ labelIDs []int64
+ assigneeID int64
+ milestoneID int64
+ )
+
+ // Get repo/branch information
+ headUser, headRepo, headGitRepo, prInfo, baseBranch, headBranch := parseCompareInfo(ctx, form)
+ if ctx.Written() {
+ return
+ }
+
+ // Check if another PR exists with the same targets
+ existingPr, err := models.GetUnmergedPullRequest(headRepo.ID, ctx.Repo.Repository.ID, headBranch, baseBranch)
+ if err != nil {
+ if !models.IsErrPullRequestNotExist(err) {
+ ctx.Error(500, "GetUnmergedPullRequest", err)
+ return
+ }
+ } else {
+ err = models.ErrPullRequestAlreadyExists{
+ ID: existingPr.ID,
+ IssueID: existingPr.Index,
+ HeadRepoID: existingPr.HeadRepoID,
+ BaseRepoID: existingPr.BaseRepoID,
+ HeadBranch: existingPr.HeadBranch,
+ BaseBranch: existingPr.BaseBranch,
+ }
+ ctx.Error(409, "GetUnmergedPullRequest", err)
+ return
+ }
+
+ if len(form.Labels) > 0 {
+ labels, err := models.GetLabelsInRepoByIDs(ctx.Repo.Repository.ID, form.Labels)
+ if err != nil {
+ ctx.Error(500, "GetLabelsInRepoByIDs", err)
+ return
+ }
+
+ labelIDs = make([]int64, len(labels))
+ for i := range labels {
+ labelIDs[i] = labels[i].ID
+ }
+ }
+
+ if form.Milestone > 0 {
+ milestone, err := models.GetMilestoneByRepoID(ctx.Repo.Repository.ID, milestoneID)
+ if err != nil {
+ if models.IsErrMilestoneNotExist(err) {
+ ctx.Status(404)
+ } else {
+ ctx.Error(500, "GetMilestoneByRepoID", err)
+ }
+ return
+ }
+
+ milestoneID = milestone.ID
+ }
+
+ if len(form.Assignee) > 0 {
+ assigneeUser, err := models.GetUserByName(form.Assignee)
+ if err != nil {
+ if models.IsErrUserNotExist(err) {
+ ctx.Error(422, "", fmt.Sprintf("assignee does not exist: [name: %s]", form.Assignee))
+ } else {
+ ctx.Error(500, "GetUserByName", err)
+ }
+ return
+ }
+
+ assignee, err := repo.GetAssigneeByID(assigneeUser.ID)
+ if err != nil {
+ ctx.Error(500, "GetAssigneeByID", err)
+ return
+ }
+
+ assigneeID = assignee.ID
+ }
+
+ patch, err := headGitRepo.GetPatch(prInfo.MergeBase, headBranch)
+ if err != nil {
+ ctx.Error(500, "GetPatch", err)
+ return
+ }
+
+ prIssue := &models.Issue{
+ RepoID: repo.ID,
+ Index: repo.NextIssueIndex(),
+ Title: form.Title,
+ PosterID: ctx.User.ID,
+ Poster: ctx.User,
+ MilestoneID: milestoneID,
+ AssigneeID: assigneeID,
+ IsPull: true,
+ Content: form.Body,
+ }
+ pr := &models.PullRequest{
+ HeadRepoID: headRepo.ID,
+ BaseRepoID: repo.ID,
+ HeadUserName: headUser.Name,
+ HeadBranch: headBranch,
+ BaseBranch: baseBranch,
+ HeadRepo: headRepo,
+ BaseRepo: repo,
+ MergeBase: prInfo.MergeBase,
+ Type: models.PullRequestGitea,
+ }
+
+ if err := models.NewPullRequest(repo, prIssue, labelIDs, []string{}, pr, patch); err != nil {
+ ctx.Error(500, "NewPullRequest", err)
+ return
+ } else if err := pr.PushToBaseRepo(); err != nil {
+ ctx.Error(500, "PushToBaseRepo", err)
+ return
+ }
+
+ log.Trace("Pull request created: %d/%d", repo.ID, prIssue.ID)
+ ctx.JSON(201, pr.APIFormat())
+}
+
+// EditPullRequest does what it says
+func EditPullRequest(ctx *context.APIContext, form api.EditPullRequestOption) {
+ pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
+ if err != nil {
+ if models.IsErrPullRequestNotExist(err) {
+ ctx.Status(404)
+ } else {
+ ctx.Error(500, "GetPullRequestByIndex", err)
+ }
+ return
+ }
+
+ pr.LoadIssue()
+ issue := pr.Issue
+
+ if !issue.IsPoster(ctx.User.ID) && !ctx.Repo.IsWriter() {
+ ctx.Status(403)
+ return
+ }
+
+ if len(form.Title) > 0 {
+ issue.Title = form.Title
+ }
+ if len(form.Body) > 0 {
+ issue.Content = form.Body
+ }
+
+ if ctx.Repo.IsWriter() && len(form.Assignee) > 0 &&
+ (issue.Assignee == nil || issue.Assignee.LowerName != strings.ToLower(form.Assignee)) {
+ if len(form.Assignee) == 0 {
+ issue.AssigneeID = 0
+ } else {
+ assignee, err := models.GetUserByName(form.Assignee)
+ if err != nil {
+ if models.IsErrUserNotExist(err) {
+ ctx.Error(422, "", fmt.Sprintf("assignee does not exist: [name: %s]", form.Assignee))
+ } else {
+ ctx.Error(500, "GetUserByName", err)
+ }
+ return
+ }
+ issue.AssigneeID = assignee.ID
+ }
+
+ if err = models.UpdateIssueUserByAssignee(issue); err != nil {
+ ctx.Error(500, "UpdateIssueUserByAssignee", err)
+ return
+ }
+ }
+ if ctx.Repo.IsWriter() && form.Milestone != 0 &&
+ issue.MilestoneID != form.Milestone {
+ oldMilestoneID := issue.MilestoneID
+ issue.MilestoneID = form.Milestone
+ if err = models.ChangeMilestoneAssign(issue, oldMilestoneID); err != nil {
+ ctx.Error(500, "ChangeMilestoneAssign", err)
+ return
+ }
+ }
+
+ if err = models.UpdateIssue(issue); err != nil {
+ ctx.Error(500, "UpdateIssue", err)
+ return
+ }
+ if form.State != nil {
+ if err = issue.ChangeStatus(ctx.User, ctx.Repo.Repository, api.StateClosed == api.StateType(*form.State)); err != nil {
+ ctx.Error(500, "ChangeStatus", err)
+ return
+ }
+ }
+
+ // Refetch from database
+ pr, err = models.GetPullRequestByIndex(ctx.Repo.Repository.ID, pr.Index)
+ if err != nil {
+ if models.IsErrPullRequestNotExist(err) {
+ ctx.Status(404)
+ } else {
+ ctx.Error(500, "GetPullRequestByIndex", err)
+ }
+ return
+ }
+
+ ctx.JSON(201, pr.APIFormat())
+}
+
+// IsPullRequestMerged checks if a PR exists given an index
+// - Returns 204 if it exists
+// Otherwise 404
+func IsPullRequestMerged(ctx *context.APIContext) {
+ pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
+ if err != nil {
+ if models.IsErrPullRequestNotExist(err) {
+ ctx.Status(404)
+ } else {
+ ctx.Error(500, "GetPullRequestByIndex", err)
+ }
+ return
+ }
+
+ if pr.HasMerged {
+ ctx.Status(204)
+ }
+ ctx.Status(404)
+}
+
+// MergePullRequest merges a PR given an index
+func MergePullRequest(ctx *context.APIContext) {
+ pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
+ if err != nil {
+ if models.IsErrPullRequestNotExist(err) {
+ ctx.Handle(404, "GetPullRequestByIndex", err)
+ } else {
+ ctx.Error(500, "GetPullRequestByIndex", err)
+ }
+ return
+ }
+
+ if err = pr.GetHeadRepo(); err != nil {
+ ctx.Handle(500, "GetHeadRepo", err)
+ return
+ }
+
+ pr.LoadIssue()
+ pr.Issue.Repo = ctx.Repo.Repository
+
+ if ctx.IsSigned {
+ // Update issue-user.
+ if err = pr.Issue.ReadBy(ctx.User.ID); err != nil {
+ ctx.Error(500, "ReadBy", err)
+ return
+ }
+ }
+
+ if pr.Issue.IsClosed {
+ ctx.Status(404)
+ return
+ }
+
+ if !pr.CanAutoMerge() || pr.HasMerged {
+ ctx.Status(405)
+ return
+ }
+
+ if err := pr.Merge(ctx.User, ctx.Repo.GitRepo); err != nil {
+ ctx.Error(500, "Merge", err)
+ return
+ }
+
+ log.Trace("Pull request merged: %d", pr.ID)
+ ctx.Status(200)
+}
+
+func parseCompareInfo(ctx *context.APIContext, form api.CreatePullRequestOption) (*models.User, *models.Repository, *git.Repository, *git.PullRequestInfo, string, string) {
+ baseRepo := ctx.Repo.Repository
+
+ // Get compared branches information
+ // format: <base branch>...[<head repo>:]<head branch>
+ // base<-head: master...head:feature
+ // same repo: master...feature
+
+ // TODO: Validate form first?
+
+ baseBranch := form.Base
+
+ var (
+ headUser *models.User
+ headBranch string
+ isSameRepo bool
+ err error
+ )
+
+ // If there is no head repository, it means pull request between same repository.
+ headInfos := strings.Split(form.Head, ":")
+ if len(headInfos) == 1 {
+ isSameRepo = true
+ headUser = ctx.Repo.Owner
+ headBranch = headInfos[0]
+
+ } else if len(headInfos) == 2 {
+ headUser, err = models.GetUserByName(headInfos[0])
+ if err != nil {
+ if models.IsErrUserNotExist(err) {
+ ctx.Handle(404, "GetUserByName", nil)
+ } else {
+ ctx.Handle(500, "GetUserByName", err)
+ }
+ return nil, nil, nil, nil, "", ""
+ }
+ headBranch = headInfos[1]
+
+ } else {
+ ctx.Status(404)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ ctx.Repo.PullRequest.SameRepo = isSameRepo
+ log.Info("Base branch: %s", baseBranch)
+ log.Info("Repo path: %s", ctx.Repo.GitRepo.Path)
+ // Check if base branch is valid.
+ if !ctx.Repo.GitRepo.IsBranchExist(baseBranch) {
+ ctx.Status(404)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ // Check if current user has fork of repository or in the same repository.
+ headRepo, has := models.HasForkedRepo(headUser.ID, baseRepo.ID)
+ if !has && !isSameRepo {
+ log.Trace("parseCompareInfo[%d]: does not have fork or in same repository", baseRepo.ID)
+ ctx.Status(404)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ var headGitRepo *git.Repository
+ if isSameRepo {
+ headRepo = ctx.Repo.Repository
+ headGitRepo = ctx.Repo.GitRepo
+ } else {
+ headGitRepo, err = git.OpenRepository(models.RepoPath(headUser.Name, headRepo.Name))
+ if err != nil {
+ ctx.Error(500, "OpenRepository", err)
+ return nil, nil, nil, nil, "", ""
+ }
+ }
+
+ if !ctx.User.IsWriterOfRepo(headRepo) && !ctx.User.IsAdmin {
+ log.Trace("ParseCompareInfo[%d]: does not have write access or site admin", baseRepo.ID)
+ ctx.Status(404)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ // Check if head branch is valid.
+ if !headGitRepo.IsBranchExist(headBranch) {
+ ctx.Status(404)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ prInfo, err := headGitRepo.GetPullRequestInfo(models.RepoPath(baseRepo.Owner.Name, baseRepo.Name), baseBranch, headBranch)
+ if err != nil {
+ ctx.Error(500, "GetPullRequestInfo", err)
+ return nil, nil, nil, nil, "", ""
+ }
+
+ return headUser, headRepo, headGitRepo, prInfo, baseBranch, headBranch
+}