139 lines
3.5 KiB
Go
139 lines
3.5 KiB
Go
// Copyright 2020 The Gitea 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 pull
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import (
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"fmt"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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)
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// Update updates pull request with base branch.
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func Update(pull *models.PullRequest, doer *models.User, message string, rebase bool) error {
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var (
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pr *models.PullRequest
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style models.MergeStyle
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)
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if rebase {
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pr = pull
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style = models.MergeStyleRebaseUpdate
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} else {
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//use merge functions but switch repo's and branch's
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pr = &models.PullRequest{
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HeadRepoID: pull.BaseRepoID,
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BaseRepoID: pull.HeadRepoID,
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HeadBranch: pull.BaseBranch,
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BaseBranch: pull.HeadBranch,
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}
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style = models.MergeStyleMerge
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}
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if pull.Flow == models.PullRequestFlowAGit {
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// TODO: Not support update agit flow pull request's head branch
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return fmt.Errorf("Not support update agit flow pull request's head branch")
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}
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if err := pr.LoadHeadRepo(); err != nil {
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log.Error("LoadHeadRepo: %v", err)
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return fmt.Errorf("LoadHeadRepo: %v", err)
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} else if err = pr.LoadBaseRepo(); err != nil {
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log.Error("LoadBaseRepo: %v", err)
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return fmt.Errorf("LoadBaseRepo: %v", err)
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}
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diffCount, err := GetDiverging(pull)
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if err != nil {
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return err
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} else if diffCount.Behind == 0 {
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return fmt.Errorf("HeadBranch of PR %d is up to date", pull.Index)
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}
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_, err = rawMerge(pr, doer, style, message)
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defer func() {
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if rebase {
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go AddTestPullRequestTask(doer, pr.BaseRepo.ID, pr.BaseBranch, false, "", "")
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return
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}
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go AddTestPullRequestTask(doer, pr.HeadRepo.ID, pr.HeadBranch, false, "", "")
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}()
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return err
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}
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// IsUserAllowedToUpdate check if user is allowed to update PR with given permissions and branch protections
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func IsUserAllowedToUpdate(pull *models.PullRequest, user *models.User) (mergeAllowed, rebaseAllowed bool, err error) {
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if pull.Flow == models.PullRequestFlowAGit {
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return false, false, nil
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}
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if user == nil {
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return false, false, nil
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}
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headRepoPerm, err := models.GetUserRepoPermission(pull.HeadRepo, user)
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if err != nil {
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return false, false, err
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}
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pr := &models.PullRequest{
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HeadRepoID: pull.BaseRepoID,
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BaseRepoID: pull.HeadRepoID,
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HeadBranch: pull.BaseBranch,
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BaseBranch: pull.HeadBranch,
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}
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err = pr.LoadProtectedBranch()
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if err != nil {
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return false, false, err
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}
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// can't do rebase on protected branch because need force push
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if pr.ProtectedBranch == nil {
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rebaseAllowed = true
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}
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// Update function need push permission
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if pr.ProtectedBranch != nil && !pr.ProtectedBranch.CanUserPush(user.ID) {
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return false, false, nil
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}
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mergeAllowed, err = IsUserAllowedToMerge(pr, headRepoPerm, user)
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if err != nil {
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return false, false, err
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}
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return mergeAllowed, rebaseAllowed, nil
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}
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// GetDiverging determines how many commits a PR is ahead or behind the PR base branch
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func GetDiverging(pr *models.PullRequest) (*git.DivergeObject, error) {
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log.Trace("GetDiverging[%d]: compare commits", pr.ID)
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if err := pr.LoadBaseRepo(); err != nil {
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return nil, err
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}
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if err := pr.LoadHeadRepo(); err != nil {
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return nil, err
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}
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tmpRepo, err := createTemporaryRepo(pr)
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if err != nil {
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if !models.IsErrBranchDoesNotExist(err) {
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log.Error("CreateTemporaryRepo: %v", err)
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}
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return nil, err
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}
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defer func() {
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if err := models.RemoveTemporaryPath(tmpRepo); err != nil {
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log.Error("Merge: RemoveTemporaryPath: %s", err)
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}
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}()
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diff, err := git.GetDivergingCommits(tmpRepo, "base", "tracking")
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return &diff, err
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}
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