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gitea/routers/api/v1/repo/pull.go

433 lines
11 KiB
Go

// 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, ctx.User, 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
}