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gitea/routers/api/v1/repo/pull.go
2018-05-09 19:29:04 +03:00

636 lines
16 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/auth"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
api "code.gitea.io/sdk/gitea"
)
// ListPullRequests returns a list of all PRs
func ListPullRequests(ctx *context.APIContext, form api.ListPullRequestsOptions) {
// swagger:operation GET /repos/{owner}/{repo}/pulls repository repoListPullRequests
// ---
// summary: List a repo's pull requests
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// responses:
// "200":
// "$ref": "#/responses/PullRequestList"
prs, maxResults, err := models.PullRequests(ctx.Repo.Repository.ID, &models.PullRequestsOptions{
Page: ctx.QueryInt("page"),
State: ctx.QueryTrim("state"),
SortType: ctx.QueryTrim("sort"),
Labels: ctx.QueryStrings("labels"),
MilestoneID: ctx.QueryInt64("milestone"),
})
if err != nil {
ctx.Error(500, "PullRequests", err)
return
}
apiPrs := make([]*api.PullRequest, len(prs))
for i := range prs {
if err = prs[i].LoadIssue(); err != nil {
ctx.Error(500, "LoadIssue", err)
return
}
if err = prs[i].LoadAttributes(); err != nil {
ctx.Error(500, "LoadAttributes", err)
return
}
if err = prs[i].GetBaseRepo(); err != nil {
ctx.Error(500, "GetBaseRepo", err)
return
}
if err = prs[i].GetHeadRepo(); err != nil {
ctx.Error(500, "GetHeadRepo", err)
return
}
apiPrs[i] = prs[i].APIFormat()
}
ctx.SetLinkHeader(int(maxResults), models.ItemsPerPage)
ctx.JSON(200, &apiPrs)
}
// GetPullRequest returns a single PR based on index
func GetPullRequest(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/pulls/{index} repository repoGetPullRequest
// ---
// summary: Get a pull request
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: index
// in: path
// description: index of the pull request to get
// type: integer
// required: true
// responses:
// "200":
// "$ref": "#/responses/PullRequest"
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 err = pr.GetBaseRepo(); err != nil {
ctx.Error(500, "GetBaseRepo", err)
return
}
if err = pr.GetHeadRepo(); err != nil {
ctx.Error(500, "GetHeadRepo", err)
return
}
ctx.JSON(200, pr.APIFormat())
}
// CreatePullRequest does what it says
func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption) {
// swagger:operation POST /repos/{owner}/{repo}/pulls repository repoCreatePullRequest
// ---
// summary: Create a pull request
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/CreatePullRequestOption"
// responses:
// "201":
// "$ref": "#/responses/PullRequest"
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
}
patch, err := headGitRepo.GetPatch(prInfo.MergeBase, headBranch)
if err != nil {
ctx.Error(500, "GetPatch", err)
return
}
var deadlineUnix util.TimeStamp
if form.Deadline != nil {
deadlineUnix = util.TimeStamp(form.Deadline.Unix())
}
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,
DeadlineUnix: deadlineUnix,
}
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,
}
// Get all assignee IDs
assigneeIDs, err := models.MakeIDsFromAPIAssigneesToAdd(form.Assignee, form.Assignees)
if err != nil {
if models.IsErrUserNotExist(err) {
ctx.Error(422, "", fmt.Sprintf("Assignee does not exist: [name: %s]", err))
} else {
ctx.Error(500, "AddAssigneeByName", err)
}
return
}
if err := models.NewPullRequest(repo, prIssue, labelIDs, []string{}, pr, patch, assigneeIDs); err != nil {
if models.IsErrUserDoesNotHaveAccessToRepo(err) {
ctx.Error(400, "UserDoesNotHaveAccessToRepo", err)
return
}
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) {
// swagger:operation PATCH /repos/{owner}/{repo}/pulls/{index} repository repoEditPullRequest
// ---
// summary: Update a pull request
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: index
// in: path
// description: index of the pull request to edit
// type: integer
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/EditPullRequestOption"
// responses:
// "201":
// "$ref": "#/responses/PullRequest"
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
}
// Update Deadline
var deadlineUnix util.TimeStamp
if form.Deadline != nil && !form.Deadline.IsZero() {
deadlineUnix = util.TimeStamp(form.Deadline.Unix())
}
if err := models.UpdateIssueDeadline(issue, deadlineUnix, ctx.User); err != nil {
ctx.Error(500, "UpdateIssueDeadline", err)
return
}
// Add/delete assignees
// Deleting is done the Github way (quote from their api documentation):
// https://developer.github.com/v3/issues/#edit-an-issue
// "assignees" (array): Logins for Users to assign to this issue.
// Pass one or more user logins to replace the set of assignees on this Issue.
// Send an empty array ([]) to clear all assignees from the Issue.
if ctx.Repo.IsWriter() && (form.Assignees != nil || len(form.Assignee) > 0) {
err = models.UpdateAPIAssignee(issue, form.Assignee, form.Assignees, ctx.User)
if err != nil {
if models.IsErrUserNotExist(err) {
ctx.Error(422, "", fmt.Sprintf("Assignee does not exist: [name: %s]", err))
} else {
ctx.Error(500, "UpdateAPIAssignee", 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
}
// TODO this should be 200, not 201
ctx.JSON(201, pr.APIFormat())
}
// IsPullRequestMerged checks if a PR exists given an index
func IsPullRequestMerged(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/pulls/{index}/merge repository repoPullRequestIsMerged
// ---
// summary: Check if a pull request has been merged
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: index
// in: path
// description: index of the pull request
// type: integer
// required: true
// responses:
// "204":
// description: pull request has been merged
// schema:
// "$ref": "#/responses/empty"
// "404":
// description: pull request has not been merged
// schema:
// "$ref": "#/responses/empty"
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, form auth.MergePullRequestForm) {
// swagger:operation POST /repos/{owner}/{repo}/pulls/{index}/merge repository repoMergePullRequest
// ---
// summary: Merge a pull request
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: index
// in: path
// description: index of the pull request to merge
// type: integer
// required: true
// responses:
// "200":
// "$ref": "#/responses/empty"
// "405":
// "$ref": "#/responses/empty"
pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
if err != nil {
if models.IsErrPullRequestNotExist(err) {
ctx.NotFound("GetPullRequestByIndex", err)
} else {
ctx.Error(500, "GetPullRequestByIndex", err)
}
return
}
if err = pr.GetHeadRepo(); err != nil {
ctx.ServerError("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 len(form.Do) == 0 {
form.Do = string(models.MergeStyleMerge)
}
message := strings.TrimSpace(form.MergeTitleField)
if len(message) == 0 {
if models.MergeStyle(form.Do) == models.MergeStyleMerge {
message = pr.GetDefaultMergeMessage()
}
if models.MergeStyle(form.Do) == models.MergeStyleSquash {
message = pr.GetDefaultSquashMessage()
}
}
form.MergeMessageField = strings.TrimSpace(form.MergeMessageField)
if len(form.MergeMessageField) > 0 {
message += "\n\n" + form.MergeMessageField
}
if err := pr.Merge(ctx.User, ctx.Repo.GitRepo, models.MergeStyle(form.Do), message); err != nil {
if models.IsErrInvalidMergeStyle(err) {
ctx.Status(405)
return
}
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.NotFound("GetUserByName", nil)
} else {
ctx.ServerError("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
}