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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package pull
import (
"context"
issues_model "code.gitea.io/gitea/models/issues"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/json"
issue_service "code.gitea.io/gitea/services/issue"
)
type commitBranchCheckItem struct {
Commit *git.Commit
Checked bool
}
func commitBranchCheck(gitRepo *git.Repository, startCommit *git.Commit, endCommitID, baseBranch string, commitList map[string]*commitBranchCheckItem) error {
if startCommit.ID.String() == endCommitID {
return nil
}
checkStack := make([]string, 0, 10)
checkStack = append(checkStack, startCommit.ID.String())
for len(checkStack) > 0 {
commitID := checkStack[0]
checkStack = checkStack[1:]
item, ok := commitList[commitID]
if !ok {
continue
}
if item.Commit.ID.String() == endCommitID {
continue
}
if err := item.Commit.LoadBranchName(); err != nil {
return err
}
if item.Commit.Branch == baseBranch {
continue
}
if item.Checked {
continue
}
item.Checked = true
parentNum := item.Commit.ParentCount()
for i := 0; i < parentNum; i++ {
parentCommit, err := item.Commit.Parent(i)
if err != nil {
return err
}
checkStack = append(checkStack, parentCommit.ID.String())
}
}
return nil
}
// getCommitIDsFromRepo get commit IDs from repo in between oldCommitID and newCommitID
// isForcePush will be true if oldCommit isn't on the branch
// Commit on baseBranch will skip
func getCommitIDsFromRepo(ctx context.Context, repo *repo_model.Repository, oldCommitID, newCommitID, baseBranch string) (commitIDs []string, isForcePush bool, err error) {
repoPath := repo.RepoPath()
gitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, repoPath)
if err != nil {
return nil, false, err
}
defer closer.Close()
oldCommit, err := gitRepo.GetCommit(oldCommitID)
if err != nil {
return nil, false, err
}
if err = oldCommit.LoadBranchName(); err != nil {
return nil, false, err
}
if len(oldCommit.Branch) == 0 {
commitIDs = make([]string, 2)
commitIDs[0] = oldCommitID
commitIDs[1] = newCommitID
return commitIDs, true, err
}
newCommit, err := gitRepo.GetCommit(newCommitID)
if err != nil {
return nil, false, err
}
commits, err := newCommit.CommitsBeforeUntil(oldCommitID)
if err != nil {
return nil, false, err
}
commitIDs = make([]string, 0, len(commits))
commitChecks := make(map[string]*commitBranchCheckItem)
for _, commit := range commits {
commitChecks[commit.ID.String()] = &commitBranchCheckItem{
Commit: commit,
Checked: false,
}
}
if err = commitBranchCheck(gitRepo, newCommit, oldCommitID, baseBranch, commitChecks); err != nil {
return
}
for i := len(commits) - 1; i >= 0; i-- {
commitID := commits[i].ID.String()
if item, ok := commitChecks[commitID]; ok && item.Checked {
commitIDs = append(commitIDs, commitID)
}
}
return commitIDs, isForcePush, err
}
// CreatePushPullComment create push code to pull base comment
func CreatePushPullComment(ctx context.Context, pusher *user_model.User, pr *issues_model.PullRequest, oldCommitID, newCommitID string) (comment *issues_model.Comment, err error) {
if pr.HasMerged || oldCommitID == "" || newCommitID == "" {
return nil, nil
}
ops := &issues_model.CreateCommentOptions{
Type: issues_model.CommentTypePullRequestPush,
Doer: pusher,
Repo: pr.BaseRepo,
}
var data issues_model.PushActionContent
data.CommitIDs, data.IsForcePush, err = getCommitIDsFromRepo(ctx, pr.BaseRepo, oldCommitID, newCommitID, pr.BaseBranch)
if err != nil {
return nil, err
}
ops.Issue = pr.Issue
dataJSON, err := json.Marshal(data)
if err != nil {
return nil, err
}
ops.Content = string(dataJSON)
comment, err = issue_service.CreateComment(ops)
return comment, err
}
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