git - 定期 git fetch 的副作用

Question

假设我有这样的代码:

git fetch &&  git diff origin origin/master --quiet || echo "untracked"

我希望它定期运行。比方说，每秒一次，或每五秒一次，依此类推。

如果此代码输出“untracked”，或者换句话说，如果远程有更新，我将运行 git pull 来更新本地代码。

问题是:做这样的事情不好吗？我的意思是，我知道这将是对远程服务器的持续请求。但是，不好吗？除此之外，还有其他副作用吗？非常感谢。

Answer 1

如果执行得太频繁，除了会使其他命令失败之外，常规提取的主要缺点是 push --force-with-lease .

我在“ push --force-with-lease by default”中记录了同样多的内容

--force-with-lease or --force-with-lease=<refname> interacts very badly with anything that implicitly runs git fetch on the remote to be pushed to in the background, e.g. git fetch origin on your repository in a cronjob.

The protection it offers over --force is ensuring that subsequent changes your work wasn't based on aren't clobbered, but this is trivially defeated if some background process is updating refs in the background.