github.com/gitbundle/modules@v0.0.0-20231025071548-85b91c5c3b01/git/last_commit_cache.go (about)

     1  // Copyright 2023 The GitBundle Inc. All rights reserved.
     2  // Copyright 2017 The Gitea Authors. All rights reserved.
     3  // Use of this source code is governed by a MIT-style
     4  // license that can be found in the LICENSE file.
     5  
     6  package git
     7  
     8  import (
     9  	"crypto/sha256"
    10  	"fmt"
    11  
    12  	"github.com/gitbundle/modules/log"
    13  )
    14  
    15  // Cache represents a caching interface
    16  type Cache interface {
    17  	// Put puts value into cache with key and expire time.
    18  	Put(key string, val interface{}, timeout int64) error
    19  	// Get gets cached value by given key.
    20  	Get(key string) interface{}
    21  }
    22  
    23  func (c *LastCommitCache) getCacheKey(repoPath, ref, entryPath string) string {
    24  	hashBytes := sha256.Sum256([]byte(fmt.Sprintf("%s:%s:%s", repoPath, ref, entryPath)))
    25  	return fmt.Sprintf("last_commit:%x", hashBytes)
    26  }
    27  
    28  // Put put the last commit id with commit and entry path
    29  func (c *LastCommitCache) Put(ref, entryPath, commitID string) error {
    30  	if c == nil || c.cache == nil {
    31  		return nil
    32  	}
    33  	log.Debug("LastCommitCache save: [%s:%s:%s]", ref, entryPath, commitID)
    34  	return c.cache.Put(c.getCacheKey(c.repoPath, ref, entryPath), commitID, c.ttl())
    35  }