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// Copyright 2020 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 pull
import (
"fmt"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
)
// Update updates pull request with base branch.
func Update(pull *models.PullRequest, doer *models.User, message string) error {
//use merge functions but switch repo's and branch's
pr := &models.PullRequest{
HeadRepoID: pull.BaseRepoID,
BaseRepoID: pull.HeadRepoID,
HeadBranch: pull.BaseBranch,
BaseBranch: pull.HeadBranch,
}
if err := pr.LoadHeadRepo(); err != nil {
log.Error("LoadHeadRepo: %v", err)
return fmt.Errorf("LoadHeadRepo: %v", err)
} else if err = pr.LoadBaseRepo(); err != nil {
log.Error("LoadBaseRepo: %v", err)
return fmt.Errorf("LoadBaseRepo: %v", err)
}
diffCount, err := GetDiverging(pull)
if err != nil {
return err
} else if diffCount.Behind == 0 {
return fmt.Errorf("HeadBranch of PR %d is up to date", pull.Index)
}
_, err = rawMerge(pr, doer, models.MergeStyleMerge, message)
defer func() {
go AddTestPullRequestTask(doer, pr.HeadRepo.ID, pr.HeadBranch, false, "", "")
}()
return err
}
// IsUserAllowedToUpdate check if user is allowed to update PR with given permissions and branch protections
func IsUserAllowedToUpdate(pull *models.PullRequest, user *models.User) (bool, error) {
headRepoPerm, err := models.GetUserRepoPermission(pull.HeadRepo, user)
if err != nil {
return false, err
}
pr := &models.PullRequest{
HeadRepoID: pull.BaseRepoID,
BaseRepoID: pull.HeadRepoID,
HeadBranch: pull.BaseBranch,
BaseBranch: pull.HeadBranch,
}
err = pr.LoadProtectedBranch()
if err != nil {
return false, err
}
// Update function need push permission
if pr.ProtectedBranch != nil && !pr.ProtectedBranch.CanUserPush(user.ID) {
return false, nil
}
return IsUserAllowedToMerge(pr, headRepoPerm, user)
}
// GetDiverging determines how many commits a PR is ahead or behind the PR base branch
func GetDiverging(pr *models.PullRequest) (*git.DivergeObject, error) {
log.Trace("GetDiverging[%d]: compare commits", pr.ID)
if err := pr.LoadBaseRepo(); err != nil {
return nil, err
}
if err := pr.LoadHeadRepo(); err != nil {
return nil, err
}
tmpRepo, err := createTemporaryRepo(pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return nil, err
}
defer func() {
if err := models.RemoveTemporaryPath(tmpRepo); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
diff, err := git.GetDivergingCommits(tmpRepo, "base", "tracking")
return &diff, err
}
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