mirror of
https://github.com/go-gitea/gitea.git
synced 2026-10-03 17:48:45 +00:00
silverwind
bea6fcaa84
The `gitea.com/go-chi/cache` package only exists for Gitea, so it moves into `modules/cache`. - `ITEM_TTL = -1` disables caching as documented - Sub-second TTLs round up instead of never expiring - The Redis adapter no longer grows a `MacaronCache` hash - Use two-queue cache for in-memory cache Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
81 lines
2.5 KiB
Go
81 lines
2.5 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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"fmt"
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"gitea.dev/modules/cache"
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"gitea.dev/modules/log"
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)
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func getCacheKey(repo RepositoryFacade, commitID, entryPath string) string {
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return cache.SafeCacheKey(fmt.Sprintf("git-last-commit:%s:%s", repo.GitRepoManagedID(), commitID), entryPath)
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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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ttlFn func() int64
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repo *Repository
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commitCache map[string]*Commit
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cache cache.StringCache
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}
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// Put puts 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.ttlFn() < 0 {
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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.repo, ref, entryPath), commitID, c.ttlFn())
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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(ctx context.Context, ref, entryPath string) (*Commit, error) {
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var lastCommitID string
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if c.ttlFn() >= 0 {
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lastCommitID, _ = c.cache.Get(getCacheKey(c.repo, ref, entryPath))
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}
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if lastCommitID == "" {
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return nil, nil //nolint:nilnil // return nil when cache miss
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}
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log.Debug("LastCommitCache hit level 1: [%s:%s:%s]", ref, entryPath, lastCommitID)
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if lastCommit, ok := c.commitCache[lastCommitID]; ok {
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log.Debug("LastCommitCache hit level 2: [%s:%s:%s]", ref, entryPath, lastCommitID)
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return lastCommit, nil
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}
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lastCommit, err := c.repo.GetCommit(ctx, lastCommitID)
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if err != nil {
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return nil, err
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}
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if c.commitCache == nil {
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c.commitCache = make(map[string]*Commit)
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}
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c.commitCache[lastCommitID] = lastCommit
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return lastCommit, nil
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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(ctx context.Context, entryCommitID ObjectID, entryPath string) (*Commit, error) {
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entryCommitIDStr := entryCommitID.String()
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lastCommit, err := c.Get(ctx, entryCommitIDStr, 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(ctx, entryCommitID, 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(entryCommitIDStr, 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, entryCommitID, c.repo.LogString(), err)
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}
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return lastCommit, nil
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}
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