使用jGit的java垃圾收集
清理jGit存储库
我正在使用jGit将一些数据存储在本地存储库中,并再次检索以前版本的数据。存储库变得相当大,我想执行垃圾收集命令,以便重新打包存储库并使存储库变小。此任务的命令行git命令为:
git gc --aggressive
我如何用jGit实现这一点
示例存储库
user:~$ du -h /tmp/Evaluation_Git_Repo/
4,0K /tmp/Evaluation_Git_Repo/.git/branches
8,0K /tmp/Evaluation_Git_Repo/.git/logs/refs/heads
12K /tmp/Evaluation_Git_Repo/.git/logs/refs
20K /tmp/Evaluation_Git_Repo/.git/logs
4,0K /tmp/Evaluation_Git_Repo/.git/hooks
4,0K /tmp/Evaluation_Git_Repo/.git/refs/tags
4,0K /tmp/Evaluation_Git_Repo/.git/refs/heads
12K /tmp/Evaluation_Git_Repo/.git/refs
4,0K /tmp/Evaluation_Git_Repo/.git/objects/99
4,0K /tmp/Evaluation_Git_Repo/.git/objects/29
4,0K /tmp/Evaluation_Git_Repo/.git/objects/01
4,0K /tmp/Evaluation_Git_Repo/.git/objects/e7
4,0K /tmp/Evaluation_Git_Repo/.git/objects/info
4,0K /tmp/Evaluation_Git_Repo/.git/objects/a9
4,0K /tmp/Evaluation_Git_Repo/.git/objects/ec
...
7,2M /tmp/Evaluation_Git_Repo/.git/objects
7,2M /tmp/Evaluation_Git_Repo/.git
7,3M /tmp/Evaluation_Git_Repo/
jGit的示例代码
以下是它目前使用的代码片段:
/**
* Repacks the repository
*/
public void repackRepository(){
Properties prop;
try {
this.git.gc().setAggressive(true).call();
prop = this.git.gc().getStatistics();
logger.info("GC");
} catch (GitAPIException e) {
e.printStackTrace();
}
}
这对文件系统没有任何影响。在jGit中使用gc()命令的正确方法是什么
预期结果
我希望gc()调用的结果与手动执行类似
user$ git gc --aggressive
Counting objects: 75, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (50/50), done.
Writing objects: 100% (75/75), done.
Total 75 (delta 24), reused 48 (delta 0)
这给了
user:/tmp/Evaluation_Git_Repo$ du -h /tmp/Evaluation_Git_Repo/
4,0K /tmp/Evaluation_Git_Repo/.git/branches
8,0K /tmp/Evaluation_Git_Repo/.git/info
12K /tmp/Evaluation_Git_Repo/.git/logs/refs/heads
16K /tmp/Evaluation_Git_Repo/.git/logs/refs
28K /tmp/Evaluation_Git_Repo/.git/logs
4,0K /tmp/Evaluation_Git_Repo/.git/hooks
4,0K /tmp/Evaluation_Git_Repo/.git/refs/tags
4,0K /tmp/Evaluation_Git_Repo/.git/refs/heads
12K /tmp/Evaluation_Git_Repo/.git/refs
8,0K /tmp/Evaluation_Git_Repo/.git/objects/info
152K /tmp/Evaluation_Git_Repo/.git/objects/pack
164K /tmp/Evaluation_Git_Repo/.git/objects
244K /tmp/Evaluation_Git_Repo/.git
304K /tmp/Evaluation_Git_Repo/
手动执行创建了一个包文件,并大大减少了空间
共 (0) 个答案