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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issue
import (
"context"
"fmt"
"time"
issues_model "code.gitea.io/gitea/models/issues"
org_model "code.gitea.io/gitea/models/organization"
access_model "code.gitea.io/gitea/models/perm/access"
"code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
func getMergeBase(repo *git.Repository, pr *issues_model.PullRequest, baseBranch, headBranch string) (string, error) {
// Add a temporary remote
tmpRemote := fmt.Sprintf("mergebase-%d-%d", pr.ID, time.Now().UnixNano())
if err := repo.AddRemote(tmpRemote, repo.Path, false); err != nil {
return "", fmt.Errorf("AddRemote: %w", err)
}
defer func() {
if err := repo.RemoveRemote(tmpRemote); err != nil {
log.Error("getMergeBase: RemoveRemote: %v", err)
}
}()
mergeBase, _, err := repo.GetMergeBase(tmpRemote, baseBranch, headBranch)
return mergeBase, err
}
type ReviewRequestNotifier struct {
Comment *issues_model.Comment
IsAdd bool
Reviewer *user_model.User
ReviewTeam *org_model.Team
}
func PullRequestCodeOwnersReview(ctx context.Context, issue *issues_model.Issue, pr *issues_model.PullRequest) ([]*ReviewRequestNotifier, error) {
files := []string{"CODEOWNERS", "docs/CODEOWNERS", ".gitea/CODEOWNERS"}
if pr.IsWorkInProgress(ctx) {
return nil, nil
}
if err := pr.LoadHeadRepo(ctx); err != nil {
return nil, err
}
if err := pr.LoadBaseRepo(ctx); err != nil {
return nil, err
}
if pr.BaseRepo.IsFork {
return nil, nil
}
repo, err := gitrepo.OpenRepository(ctx, pr.BaseRepo)
if err != nil {
return nil, err
}
defer repo.Close()
commit, err := repo.GetBranchCommit(pr.BaseRepo.DefaultBranch)
if err != nil {
return nil, err
}
var data string
for _, file := range files {
if blob, err := commit.GetBlobByPath(file); err == nil {
data, err = blob.GetBlobContent(setting.UI.MaxDisplayFileSize)
if err == nil {
break
}
}
}
rules, _ := issues_model.GetCodeOwnersFromContent(ctx, data)
// get the mergebase
mergeBase, err := getMergeBase(repo, pr, git.BranchPrefix+pr.BaseBranch, pr.GetGitRefName())
if err != nil {
return nil, err
}
// https://github.com/go-gitea/gitea/issues/29763, we need to get the files changed
// between the merge base and the head commit but not the base branch and the head commit
changedFiles, err := repo.GetFilesChangedBetween(mergeBase, pr.GetGitRefName())
if err != nil {
return nil, err
}
uniqUsers := make(map[int64]*user_model.User)
uniqTeams := make(map[string]*org_model.Team)
for _, rule := range rules {
for _, f := range changedFiles {
if (rule.Rule.MatchString(f) && !rule.Negative) || (!rule.Rule.MatchString(f) && rule.Negative) {
for _, u := range rule.Users {
uniqUsers[u.ID] = u
}
for _, t := range rule.Teams {
uniqTeams[fmt.Sprintf("%d/%d", t.OrgID, t.ID)] = t
}
}
}
}
notifiers := make([]*ReviewRequestNotifier, 0, len(uniqUsers)+len(uniqTeams))
if err := issue.LoadPoster(ctx); err != nil {
return nil, err
}
for _, u := range uniqUsers {
permission, err := access_model.GetUserRepoPermission(ctx, issue.Repo, u)
if err != nil {
return nil, fmt.Errorf("GetUserRepoPermission: %w", err)
}
if u.ID != issue.Poster.ID && permission.CanRead(unit.TypePullRequests) {
comment, err := issues_model.AddReviewRequest(ctx, issue, u, issue.Poster)
if err != nil {
log.Warn("Failed add assignee user: %s to PR review: %s#%d, error: %s", u.Name, pr.BaseRepo.Name, pr.ID, err)
return nil, err
}
notifiers = append(notifiers, &ReviewRequestNotifier{
Comment: comment,
IsAdd: true,
Reviewer: u,
})
}
}
for _, t := range uniqTeams {
comment, err := issues_model.AddTeamReviewRequest(ctx, issue, t, issue.Poster)
if err != nil {
log.Warn("Failed add assignee team: %s to PR review: %s#%d, error: %s", t.Name, pr.BaseRepo.Name, pr.ID, err)
return nil, err
}
notifiers = append(notifiers, &ReviewRequestNotifier{
Comment: comment,
IsAdd: true,
ReviewTeam: t,
})
}
return notifiers, nil
}
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