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Decouple diff stats query from actual diffing (#33810)

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The diff stats are no longer part of the diff generation.
Use `GetDiffShortStat` instead to get the total number of changed files,
added lines, and deleted lines.
As such, `gitdiff.GetDiff` can be simplified:
It should not do more than expected.

And do not run "git diff --shortstat" for pull list. Fix #31492
This commit is contained in:
wxiaoguang
2025-03-08 17:36:08 +08:00
committed by GitHub
parent 1b2dffff8e
commit 6422f05a4e
17 changed files with 158 additions and 214 deletions
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10
services/convert/git_commit.go
View File

@@ -210,17 +210,15 @@ func ToCommit(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Rep
// Get diff stats for commit
if opts.Stat {
diff, err := gitdiff.GetDiff(ctx, gitRepo, &gitdiff.DiffOptions{
AfterCommitID: commit.ID.String(),
})
diffShortStat, err := gitdiff.GetDiffShortStat(gitRepo, "", commit.ID.String())
if err != nil {
return nil, err
}
res.Stats = &api.CommitStats{
Total: diff.TotalAddition + diff.TotalDeletion,
Additions: diff.TotalAddition,
Deletions: diff.TotalDeletion,
Total: diffShortStat.TotalAddition + diffShortStat.TotalDeletion,
Additions: diffShortStat.TotalAddition,
Deletions: diffShortStat.TotalDeletion,
}
}

30
services/convert/pull.go
View File

@@ -17,8 +17,10 @@ import (
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/services/gitdiff"
)
// ToAPIPullRequest assumes following fields have been assigned with valid values:
@@ -239,9 +241,13 @@ func ToAPIPullRequest(ctx context.Context, pr *issues_model.PullRequest, doer *u
// Calculate diff
startCommitID = pr.MergeBase
apiPullRequest.ChangedFiles, apiPullRequest.Additions, apiPullRequest.Deletions, err = gitRepo.GetDiffShortStat(startCommitID, endCommitID)
diffShortStats, err := gitdiff.GetDiffShortStat(gitRepo, startCommitID, endCommitID)
if err != nil {
log.Error("GetDiffShortStat: %v", err)
} else {
apiPullRequest.ChangedFiles = &diffShortStats.NumFiles
apiPullRequest.Additions = &diffShortStats.TotalAddition
apiPullRequest.Deletions = &diffShortStats.TotalDeletion
}
}
@@ -462,12 +468,6 @@ func ToAPIPullRequests(ctx context.Context, baseRepo *repo_model.Repository, prs
return nil, err
}
// Outer scope variables to be used in diff calculation
var (
startCommitID string
endCommitID string
)
if git.IsErrBranchNotExist(err) {
headCommitID, err := headGitRepo.GetRefCommitID(apiPullRequest.Head.Ref)
if err != nil && !git.IsErrNotExist(err) {
@@ -476,7 +476,6 @@ func ToAPIPullRequests(ctx context.Context, baseRepo *repo_model.Repository, prs
}
if err == nil {
apiPullRequest.Head.Sha = headCommitID
endCommitID = headCommitID
}
} else {
commit, err := headBranch.GetCommit()
@@ -487,17 +486,8 @@ func ToAPIPullRequests(ctx context.Context, baseRepo *repo_model.Repository, prs
if err == nil {
apiPullRequest.Head.Ref = pr.HeadBranch
apiPullRequest.Head.Sha = commit.ID.String()
endCommitID = commit.ID.String()
}
}
// Calculate diff
startCommitID = pr.MergeBase
apiPullRequest.ChangedFiles, apiPullRequest.Additions, apiPullRequest.Deletions, err = gitRepo.GetDiffShortStat(startCommitID, endCommitID)
if err != nil {
log.Error("GetDiffShortStat: %v", err)
}
}
if len(apiPullRequest.Head.Sha) == 0 && len(apiPullRequest.Head.Ref) != 0 {
@@ -518,6 +508,12 @@ func ToAPIPullRequests(ctx context.Context, baseRepo *repo_model.Repository, prs
apiPullRequest.MergedBy = ToUser(ctx, pr.Merger, nil)
}
// Do not provide "ChangeFiles/Additions/Deletions" for the PR list, because the "diff" is quite slow
// If callers are interested in these values, they should do a separate request to get the PR details
if apiPullRequest.ChangedFiles != nil || apiPullRequest.Additions != nil || apiPullRequest.Deletions != nil {
setting.PanicInDevOrTesting("ChangedFiles/Additions/Deletions should not be set in PR list")
}
apiPullRequests = append(apiPullRequests, apiPullRequest)
}