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forgejo/routers/api/v1/repo/pull.go
zeripath 722a7c902d
Add Close() method to gogitRepository (#8901)
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.

This PR adds this Close function and adds the Close functions as necessary.

In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.

Fixes #7947
2019-11-13 07:01:19 +00:00

776 lines
21 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"
"net/http"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/timeutil"
issue_service "code.gitea.io/gitea/services/issue"
pull_service "code.gitea.io/gitea/services/pull"
)
// 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
// - name: page
// in: query
// description: Page number
// type: integer
// - name: state
// in: query
// description: "State of pull request: open or closed (optional)"
// type: string
// enum: [closed, open, all]
// - name: sort
// in: query
// description: "Type of sort"
// type: string
// enum: [oldest, recentupdate, leastupdate, mostcomment, leastcomment, priority]
// - name: milestone
// in: query
// description: "ID of the milestone"
// type: integer
// format: int64
// - name: labels
// in: query
// description: "Label IDs"
// type: array
// collectionFormat: multi
// items:
// type: integer
// format: int64
// responses:
// "200":
// "$ref": "#/responses/PullRequestList"
prs, maxResults, err := models.PullRequests(ctx.Repo.Repository.ID, &models.PullRequestsOptions{
Page: ctx.QueryInt("page"),
State: ctx.QueryTrim("state"),
SortType: ctx.QueryTrim("sort"),
Labels: ctx.QueryStrings("labels"),
MilestoneID: ctx.QueryInt64("milestone"),
})
if err != nil {
ctx.Error(500, "PullRequests", err)
return
}
apiPrs := make([]*api.PullRequest, len(prs))
for i := range prs {
if err = prs[i].LoadIssue(); err != nil {
ctx.Error(500, "LoadIssue", err)
return
}
if err = prs[i].LoadAttributes(); err != nil {
ctx.Error(500, "LoadAttributes", err)
return
}
if err = prs[i].GetBaseRepo(); err != nil {
ctx.Error(500, "GetBaseRepo", err)
return
}
if err = prs[i].GetHeadRepo(); err != nil {
ctx.Error(500, "GetHeadRepo", err)
return
}
apiPrs[i] = prs[i].APIFormat()
}
ctx.SetLinkHeader(int(maxResults), models.ItemsPerPage)
ctx.JSON(200, &apiPrs)
}
// GetPullRequest returns a single PR based on index
func GetPullRequest(ctx *context.APIContext) {
// swagger:operation GET /repos/{owner}/{repo}/pulls/{index} repository repoGetPullRequest
// ---
// summary: Get a pull request
// produces:
// - application/json
// parameters:
// - name: owner
// in: path
// description: owner of the repo
// type: string
// required: true
// - name: repo
// in: path
// description: name of the repo
// type: string
// required: true
// - name: index
// in: path
// description: index of the pull request to get
// type: integer
// format: int64
// required: true
// responses:
// "200":
// "$ref": "#/responses/PullRequest"
pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
if err != nil {
if models.IsErrPullRequestNotExist(err) {
ctx.NotFound()
} 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
_, headRepo, headGitRepo, compareInfo, baseBranch, headBranch := parseCompareInfo(ctx, form)
if ctx.Written() {
return
}
defer headGitRepo.Close()
// 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.NotFound()
} else {
ctx.Error(500, "GetMilestoneByRepoID", err)
}
return
}
milestoneID = milestone.ID
}
patch, err := headGitRepo.GetPatch(compareInfo.MergeBase, headBranch)
if err != nil {
ctx.Error(500, "GetPatch", err)
return
}
var deadlineUnix timeutil.TimeStamp
if form.Deadline != nil {
deadlineUnix = timeutil.TimeStamp(form.Deadline.Unix())
}
prIssue := &models.Issue{
RepoID: repo.ID,
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,
HeadBranch: headBranch,
BaseBranch: baseBranch,
HeadRepo: headRepo,
BaseRepo: repo,
MergeBase: compareInfo.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
}
// Check if the passed assignees is assignable
for _, aID := range assigneeIDs {
assignee, err := models.GetUserByID(aID)
if err != nil {
ctx.Error(500, "GetUserByID", err)
return
}
valid, err := models.CanBeAssigned(assignee, repo, true)
if err != nil {
ctx.Error(500, "canBeAssigned", err)
return
}
if !valid {
ctx.Error(422, "canBeAssigned", models.ErrUserDoesNotHaveAccessToRepo{UserID: aID, RepoName: repo.Name})
return
}
}
if err := pull_service.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
}
notification.NotifyNewPullRequest(pr)
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. If using deadline only the date will be taken into account, and time of day ignored.
// 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
// format: int64
// 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.NotFound()
} else {
ctx.Error(500, "GetPullRequestByIndex", err)
}
return
}
err = pr.LoadIssue()
if err != nil {
ctx.Error(http.StatusInternalServerError, "LoadIssue", err)
return
}
issue := pr.Issue
issue.Repo = ctx.Repo.Repository
if !issue.IsPoster(ctx.User.ID) && !ctx.Repo.CanWrite(models.UnitTypePullRequests) {
ctx.Status(403)
return
}
if len(form.Title) > 0 {
issue.Title = form.Title
}
if len(form.Body) > 0 {
issue.Content = form.Body
}
// Update or remove deadline if set
if form.Deadline != nil || form.RemoveDeadline != nil {
var deadlineUnix timeutil.TimeStamp
if (form.RemoveDeadline == nil || !*form.RemoveDeadline) && !form.Deadline.IsZero() {
deadline := time.Date(form.Deadline.Year(), form.Deadline.Month(), form.Deadline.Day(),
23, 59, 59, 0, form.Deadline.Location())
deadlineUnix = timeutil.TimeStamp(deadline.Unix())
}
if err := models.UpdateIssueDeadline(issue, deadlineUnix, ctx.User); err != nil {
ctx.Error(500, "UpdateIssueDeadline", err)
return
}
issue.DeadlineUnix = deadlineUnix
}
// 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.CanWrite(models.UnitTypePullRequests) && (form.Assignees != nil || len(form.Assignee) > 0) {
err = issue_service.UpdateAssignees(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, "UpdateAssignees", err)
}
return
}
}
if ctx.Repo.CanWrite(models.UnitTypePullRequests) && form.Milestone != 0 &&
issue.MilestoneID != form.Milestone {
oldMilestoneID := issue.MilestoneID
issue.MilestoneID = form.Milestone
if err = issue_service.ChangeMilestoneAssign(issue, ctx.User, oldMilestoneID); err != nil {
ctx.Error(500, "ChangeMilestoneAssign", err)
return
}
}
if ctx.Repo.CanWrite(models.UnitTypePullRequests) && form.Labels != nil {
labels, err := models.GetLabelsInRepoByIDs(ctx.Repo.Repository.ID, form.Labels)
if err != nil {
ctx.Error(500, "GetLabelsInRepoByIDsError", err)
return
}
if err = issue.ReplaceLabels(labels, ctx.User); err != nil {
ctx.Error(500, "ReplaceLabelsError", err)
return
}
}
if err = models.UpdateIssue(issue); err != nil {
ctx.Error(500, "UpdateIssue", err)
return
}
if form.State != nil {
if err = issue_service.ChangeStatus(issue, ctx.User, api.StateClosed == api.StateType(*form.State)); err != nil {
if models.IsErrDependenciesLeft(err) {
ctx.Error(http.StatusPreconditionFailed, "DependenciesLeft", "cannot close this pull request because it still has open dependencies")
return
}
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.NotFound()
} 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
// format: int64
// required: true
// responses:
// "204":
// description: pull request has been merged
// "404":
// description: pull request has not been merged
pr, err := models.GetPullRequestByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
if err != nil {
if models.IsErrPullRequestNotExist(err) {
ctx.NotFound()
} else {
ctx.Error(500, "GetPullRequestByIndex", err)
}
return
}
if pr.HasMerged {
ctx.Status(204)
}
ctx.NotFound()
}
// 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
// format: int64
// required: true
// - name: body
// in: body
// schema:
// $ref: "#/definitions/MergePullRequestOption"
// responses:
// "200":
// "$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
}
err = pr.LoadIssue()
if err != nil {
ctx.Error(http.StatusInternalServerError, "LoadIssue", err)
return
}
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.NotFound()
return
}
if !pr.CanAutoMerge() || pr.HasMerged || pr.IsWorkInProgress() {
ctx.Status(405)
return
}
isPass, err := pull_service.IsPullCommitStatusPass(pr)
if err != nil {
ctx.Error(500, "IsPullCommitStatusPass", err)
return
}
if !isPass && !ctx.IsUserRepoAdmin() {
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 := pull_service.Merge(pr, ctx.User, ctx.Repo.GitRepo, models.MergeStyle(form.Do), message); err != nil {
if models.IsErrInvalidMergeStyle(err) {
ctx.Status(405)
return
} else if models.IsErrMergeConflicts(err) {
conflictError := err.(models.ErrMergeConflicts)
ctx.JSON(http.StatusConflict, conflictError)
} else if models.IsErrRebaseConflicts(err) {
conflictError := err.(models.ErrRebaseConflicts)
ctx.JSON(http.StatusConflict, conflictError)
} else if models.IsErrMergeUnrelatedHistories(err) {
conflictError := err.(models.ErrMergeUnrelatedHistories)
ctx.JSON(http.StatusConflict, conflictError)
} else if models.IsErrMergePushOutOfDate(err) {
ctx.Status(http.StatusConflict)
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.CompareInfo, 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")
} else {
ctx.ServerError("GetUserByName", err)
}
return nil, nil, nil, nil, "", ""
}
headBranch = headInfos[1]
} else {
ctx.NotFound()
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.NotFound("IsBranchExist")
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.NotFound("HasForkedRepo")
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, "", ""
}
}
// user should have permission to read baseRepo's codes and pulls, NOT headRepo's
permBase, err := models.GetUserRepoPermission(baseRepo, ctx.User)
if err != nil {
headGitRepo.Close()
ctx.ServerError("GetUserRepoPermission", err)
return nil, nil, nil, nil, "", ""
}
if !permBase.CanReadIssuesOrPulls(true) || !permBase.CanRead(models.UnitTypeCode) {
if log.IsTrace() {
log.Trace("Permission Denied: User %-v cannot create/read pull requests or cannot read code in Repo %-v\nUser in baseRepo has Permissions: %-+v",
ctx.User,
baseRepo,
permBase)
}
headGitRepo.Close()
ctx.NotFound("Can't read pulls or can't read UnitTypeCode")
return nil, nil, nil, nil, "", ""
}
// user should have permission to read headrepo's codes
permHead, err := models.GetUserRepoPermission(headRepo, ctx.User)
if err != nil {
headGitRepo.Close()
ctx.ServerError("GetUserRepoPermission", err)
return nil, nil, nil, nil, "", ""
}
if !permHead.CanRead(models.UnitTypeCode) {
if log.IsTrace() {
log.Trace("Permission Denied: User: %-v cannot read code in Repo: %-v\nUser in headRepo has Permissions: %-+v",
ctx.User,
headRepo,
permHead)
}
headGitRepo.Close()
ctx.NotFound("Can't read headRepo UnitTypeCode")
return nil, nil, nil, nil, "", ""
}
// Check if head branch is valid.
if !headGitRepo.IsBranchExist(headBranch) {
headGitRepo.Close()
ctx.NotFound()
return nil, nil, nil, nil, "", ""
}
compareInfo, err := headGitRepo.GetCompareInfo(models.RepoPath(baseRepo.Owner.Name, baseRepo.Name), baseBranch, headBranch)
if err != nil {
headGitRepo.Close()
ctx.Error(500, "GetCompareInfo", err)
return nil, nil, nil, nil, "", ""
}
return headUser, headRepo, headGitRepo, compareInfo, baseBranch, headBranch
}