mirror of
https://github.com/go-gitea/gitea.git
synced 2025-05-13 01:12:36 -04:00
114 lines
3.0 KiB
Go
114 lines
3.0 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"context"
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"crypto/sha256"
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"fmt"
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"path"
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"code.gitea.io/gitea/modules/cache"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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)
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func getCacheKey(repoPath, commitID, entryPath string) string {
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hashBytes := sha256.Sum256([]byte(fmt.Sprintf("%s:%s:%s", repoPath, commitID, entryPath)))
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return fmt.Sprintf("last_commit:%x", hashBytes)
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}
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// lastCommitCache represents a cache to store last commit
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type lastCommitCache struct {
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repoPath string
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repo *Repository
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ttl func() int64
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cache cache.StringCache
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}
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// newLastCommitCache creates a new last commit cache for repo
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func newLastCommitCache(repoPath string, gitRepo *Repository, cache cache.StringCache) *lastCommitCache {
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if cache == nil {
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return nil
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}
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return &lastCommitCache{
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repoPath: repoPath,
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repo: gitRepo,
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ttl: setting.LastCommitCacheTTLSeconds,
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cache: cache,
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}
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}
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// Put put the last commit id with commit and entry path
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func (c *lastCommitCache) Put(ref, entryPath, commitID string) error {
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if c == nil || c.cache == nil {
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return nil
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}
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log.Debug("LastCommitCache save: [%s:%s:%s]", ref, entryPath, commitID)
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return c.cache.Put(getCacheKey(c.repoPath, ref, entryPath), commitID, c.ttl())
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}
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// Get gets the last commit information by commit id and entry path
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func (c *lastCommitCache) Get(ref, entryPath string) (*Commit, error) {
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if c == nil || c.cache == nil {
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return nil, nil
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}
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commitID, ok := c.cache.Get(getCacheKey(c.repoPath, ref, entryPath))
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if !ok || commitID == "" {
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return nil, nil
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}
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log.Debug("LastCommitCache hit: [%s:%s:%s]", ref, entryPath, commitID)
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return c.repo.GetCommit(commitID)
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}
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// GetCommitByPath gets the last commit for the entry in the provided commit
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func (c *lastCommitCache) GetCommitByPath(commitID, entryPath string) (*Commit, error) {
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sha, err := NewIDFromString(commitID)
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if err != nil {
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return nil, err
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}
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lastCommit, err := c.Get(sha.String(), entryPath)
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if err != nil || lastCommit != nil {
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return lastCommit, err
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}
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lastCommit, err = c.repo.getCommitByPathWithID(sha, entryPath)
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if err != nil {
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return nil, err
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}
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if err := c.Put(commitID, entryPath, lastCommit.ID.String()); err != nil {
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log.Error("Unable to cache %s as the last commit for %q in %s %s. Error %v", lastCommit.ID.String(), entryPath, commitID, c.repoPath, err)
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}
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return lastCommit, nil
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}
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func (c *lastCommitCache) getLastCommitForPathsByCache(commitID, treePath string, paths []string) (map[string]*Commit, []string, error) {
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var unHitEntryPaths []string
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results := make(map[string]*Commit)
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for _, p := range paths {
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lastCommit, err := c.Get(commitID, path.Join(treePath, p))
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if err != nil {
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return nil, nil, err
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}
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if lastCommit != nil {
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results[p] = lastCommit
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continue
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}
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unHitEntryPaths = append(unHitEntryPaths, p)
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}
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return results, unHitEntryPaths, nil
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}
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func (repo *Repository) CacheCommit(ctx context.Context, commit *Commit) error {
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return repo.lastCommitCache.CacheCommit(ctx, commit)
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}
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