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fix: git cache (#38763)

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1. always use "last commit cache"
2. correctly build the cache key for any input (SafeCacheKey)
3. fix the git note "last commit cache FIXME" and avoid OOM
This commit is contained in:
wxiaoguang
2026-08-05 00:17:07 +08:00
committed by GitHub
parent 6347a33b34
commit deccd53c24
26 changed files with 213 additions and 298 deletions
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services/repository/cache.go
+2 -15
View File
@@ -6,27 +6,14 @@ package repository
import (
"context"
repo_model "gitea.dev/models/repo"
"gitea.dev/modules/cache"
"gitea.dev/modules/git"
)
// CacheRef cachhe last commit information of the branch or the tag
func CacheRef(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, fullRefName git.RefName) error {
// CacheRef caches last commit information of the branch or the tag
func CacheRef(ctx context.Context, gitRepo *git.Repository, fullRefName git.RefName) error {
commit, err := gitRepo.GetCommit(ctx, fullRefName.String())
if err != nil {
return err
}
if gitRepo.LastCommitCache == nil {
commitsCount, err := cache.GetInt64(repo.GetCommitsCountCacheKey(fullRefName.ShortName(), true), func() (int64, error) {
return git.CommitsCountOfCommit(ctx, repo, commit.ID.String())
})
if err != nil {
return err
}
gitRepo.LastCommitCache = git.NewLastCommitCache(commitsCount, repo.FullName(), gitRepo, cache.GetCache())
}
return commit.CacheCommit(ctx, gitRepo)
}
services/repository/files/content.go
-20
View File
@@ -11,7 +11,6 @@ import (
"strings"
repo_model "gitea.dev/models/repo"
"gitea.dev/modules/cache"
"gitea.dev/modules/git"
"gitea.dev/modules/lfs"
"gitea.dev/modules/setting"
@@ -121,21 +120,7 @@ func GetFileContents(ctx context.Context, repo *repo_model.Repository, gitRepo *
return getFileContentsByEntryInternal(ctx, repo, gitRepo, refCommit, entry, opts)
}
func addLastCommitCache(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, cacheKey, fullName, sha string) error {
if gitRepo.LastCommitCache == nil {
commitsCount, err := cache.GetInt64(cacheKey, func() (int64, error) {
return git.CommitsCountOfCommit(ctx, repo, sha)
})
if err != nil {
return err
}
gitRepo.LastCommitCache = git.NewLastCommitCache(commitsCount, fullName, gitRepo, cache.GetCache())
}
return nil
}
func getFileContentsByEntryInternal(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, refCommit *utils.RefCommit, entry *git.TreeEntry, opts GetContentsOrListOptions) (*api.ContentsResponse, error) {
refType := refCommit.RefName.RefType()
commit := refCommit.Commit
selfURL, err := url.Parse(repo.APIURL() + "/contents/" + util.PathEscapeSegments(opts.TreePath) + "?ref=" + url.QueryEscape(refCommit.InputRef))
if err != nil {
@@ -157,11 +142,6 @@ func getFileContentsByEntryInternal(ctx context.Context, repo *repo_model.Reposi
}
if opts.IncludeCommitMetadata || opts.IncludeCommitMessage {
err = addLastCommitCache(ctx, repo, gitRepo, repo.GetCommitsCountCacheKey(refCommit.InputRef, refType != git.RefTypeCommit), repo.FullName(), refCommit.CommitID)
if err != nil {
return nil, err
}
lastCommit, err := refCommit.Commit.GetCommitByPath(ctx, gitRepo, opts.TreePath)
if err != nil {
return nil, err
services/repository/push.go
+2 -12
View File
@@ -13,7 +13,6 @@ import (
"gitea.dev/models/db"
repo_model "gitea.dev/models/repo"
user_model "gitea.dev/models/user"
"gitea.dev/modules/cache"
"gitea.dev/modules/git"
"gitea.dev/modules/graceful"
"gitea.dev/modules/log"
@@ -205,7 +204,7 @@ func pushQueueHandleUpdates(optsList []*repo_module.PushUpdateOptions) error {
notify_service.PushCommits(ctx, pusher, repo, opts, commits)
// Cache for big repository
if err := CacheRef(graceful.GetManager().HammerContext(), repo, gitRepo, opts.RefFullName); err != nil {
if err := CacheRef(graceful.GetManager().HammerContext(), gitRepo, opts.RefFullName); err != nil {
log.Error("repo_module.CacheRef %s/%s failed: %v", repo.ID, branch, err)
}
} else {
@@ -309,16 +308,7 @@ func pushUpdateBranch(ctx context.Context, repo *repo_model.Repository, gitRepo
OldCommitID: opts.OldCommitID,
NewCommitID: opts.NewCommitID,
})
if isForcePush {
log.Trace("Push %s is a force push", opts.NewCommitID)
cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
} else {
// TODO: increment update the commit count cache but not remove
cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
}
git.RemoveCommitsCountCache(repo, opts.RefFullName)
return l, nil
}