forgejo-federation/services/pull/review.go

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// Copyright 2019 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 (
"bytes"
"fmt"
"regexp"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/notification"
"code.gitea.io/gitea/modules/setting"
)
// CreateCodeComment creates a comment on the code line
func CreateCodeComment(doer *models.User, gitRepo *git.Repository, issue *models.Issue, line int64, content string, treePath string, isReview bool, replyReviewID int64, latestCommitID string) (*models.Comment, error) {
var (
existsReview bool
err error
)
// CreateCodeComment() is used for:
// - Single comments
// - Comments that are part of a review
// - Comments that reply to an existing review
if !isReview && replyReviewID != 0 {
// It's not part of a review; maybe a reply to a review comment or a single comment.
// Check if there are reviews for that line already; if there are, this is a reply
if existsReview, err = models.ReviewExists(issue, treePath, line); err != nil {
return nil, err
}
}
// Comments that are replies don't require a review header to show up in the issue view
if !isReview && existsReview {
if err = issue.LoadRepo(); err != nil {
return nil, err
}
comment, err := createCodeComment(
doer,
issue.Repo,
issue,
content,
treePath,
line,
replyReviewID,
)
if err != nil {
return nil, err
}
mentions, err := issue.FindAndUpdateIssueMentions(models.DefaultDBContext(), doer, comment.Content)
if err != nil {
return nil, err
}
notification.NotifyCreateIssueComment(doer, issue.Repo, issue, comment, mentions)
return comment, nil
}
review, err := models.GetCurrentReview(doer, issue)
if err != nil {
if !models.IsErrReviewNotExist(err) {
return nil, err
}
if review, err = models.CreateReview(models.CreateReviewOptions{
Type: models.ReviewTypePending,
Reviewer: doer,
Issue: issue,
Official: false,
CommitID: latestCommitID,
}); err != nil {
return nil, err
}
}
comment, err := createCodeComment(
doer,
issue.Repo,
issue,
content,
treePath,
line,
review.ID,
)
if err != nil {
return nil, err
}
if !isReview && !existsReview {
// Submit the review we've just created so the comment shows up in the issue view
if _, _, err = SubmitReview(doer, gitRepo, issue, models.ReviewTypeComment, "", latestCommitID); err != nil {
return nil, err
}
}
// NOTICE: if it's a pending review the notifications will not be fired until user submit review.
return comment, nil
}
var notEnoughLines = regexp.MustCompile(`exit status 128 - fatal: file .* has only \d+ lines?`)
// createCodeComment creates a plain code comment at the specified line / path
func createCodeComment(doer *models.User, repo *models.Repository, issue *models.Issue, content, treePath string, line, reviewID int64) (*models.Comment, error) {
var commitID, patch string
if err := issue.LoadPullRequest(); err != nil {
return nil, fmt.Errorf("GetPullRequestByIssueID: %v", err)
}
pr := issue.PullRequest
if err := pr.LoadBaseRepo(); err != nil {
return nil, fmt.Errorf("LoadHeadRepo: %v", err)
}
gitRepo, err := git.OpenRepository(pr.BaseRepo.RepoPath())
if err != nil {
return nil, fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
invalidated := false
head := pr.GetGitRefName()
if line > 0 {
if reviewID != 0 {
first, err := models.FindComments(models.FindCommentsOptions{
ReviewID: reviewID,
Line: line,
TreePath: treePath,
Type: models.CommentTypeCode,
ListOptions: models.ListOptions{
PageSize: 1,
Page: 1,
},
})
if err == nil && len(first) > 0 {
commitID = first[0].CommitSHA
invalidated = first[0].Invalidated
patch = first[0].Patch
} else if err != nil && !models.IsErrCommentNotExist(err) {
return nil, fmt.Errorf("Find first comment for %d line %d path %s. Error: %v", reviewID, line, treePath, err)
} else {
review, err := models.GetReviewByID(reviewID)
if err == nil && len(review.CommitID) > 0 {
head = review.CommitID
} else if err != nil && !models.IsErrReviewNotExist(err) {
return nil, fmt.Errorf("GetReviewByID %d. Error: %v", reviewID, err)
}
}
}
if len(commitID) == 0 {
// FIXME validate treePath
// Get latest commit referencing the commented line
// No need for get commit for base branch changes
commit, err := gitRepo.LineBlame(head, gitRepo.Path, treePath, uint(line))
if err == nil {
commitID = commit.ID.String()
} else if !(strings.Contains(err.Error(), "exit status 128 - fatal: no such path") || notEnoughLines.MatchString(err.Error())) {
return nil, fmt.Errorf("LineBlame[%s, %s, %s, %d]: %v", pr.GetGitRefName(), gitRepo.Path, treePath, line, err)
}
}
}
// Only fetch diff if comment is review comment
if len(patch) == 0 && reviewID != 0 {
headCommitID, err := gitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil {
return nil, fmt.Errorf("GetRefCommitID[%s]: %v", pr.GetGitRefName(), err)
}
if len(commitID) == 0 {
commitID = headCommitID
}
patchBuf := new(bytes.Buffer)
if err := git.GetRepoRawDiffForFile(gitRepo, pr.MergeBase, headCommitID, git.RawDiffNormal, treePath, patchBuf); err != nil {
return nil, fmt.Errorf("GetRawDiffForLine[%s, %s, %s, %s]: %v", gitRepo.Path, pr.MergeBase, headCommitID, treePath, err)
}
patch = git.CutDiffAroundLine(patchBuf, int64((&models.Comment{Line: line}).UnsignedLine()), line < 0, setting.UI.CodeCommentLines)
}
return models.CreateComment(&models.CreateCommentOptions{
Type: models.CommentTypeCode,
Doer: doer,
Repo: repo,
Issue: issue,
Content: content,
LineNum: line,
TreePath: treePath,
CommitSHA: commitID,
ReviewID: reviewID,
Patch: patch,
Invalidated: invalidated,
})
}
// SubmitReview creates a review out of the existing pending review or creates a new one if no pending review exist
func SubmitReview(doer *models.User, gitRepo *git.Repository, issue *models.Issue, reviewType models.ReviewType, content, commitID string) (*models.Review, *models.Comment, error) {
pr, err := issue.GetPullRequest()
if err != nil {
return nil, nil, err
}
var stale bool
if reviewType != models.ReviewTypeApprove && reviewType != models.ReviewTypeReject {
stale = false
} else {
headCommitID, err := gitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil {
return nil, nil, err
}
if headCommitID == commitID {
stale = false
} else {
stale, err = checkIfPRContentChanged(pr, commitID, headCommitID)
if err != nil {
return nil, nil, err
}
}
}
review, comm, err := models.SubmitReview(doer, issue, reviewType, content, commitID, stale)
if err != nil {
return nil, nil, err
}
ctx := models.DefaultDBContext()
mentions, err := issue.FindAndUpdateIssueMentions(ctx, doer, comm.Content)
if err != nil {
return nil, nil, err
}
notification.NotifyPullRequestReview(pr, review, comm, mentions)
for _, lines := range review.CodeComments {
for _, comments := range lines {
for _, codeComment := range comments {
mentions, err := issue.FindAndUpdateIssueMentions(ctx, doer, codeComment.Content)
if err != nil {
return nil, nil, err
}
notification.NotifyPullRequestCodeComment(pr, codeComment, mentions)
}
}
}
return review, comm, nil
}