git remote命令中的'set-branches'是什么意思？

Question

根据文档 https://git-scm.com/docs/git-remote#Documentation/git-remote.txt-emset-branchesem，我无法确定它实际上做了什么。

- Shikhar Tyagi

Answer 1

这个功能在2010年5月的Git v1.7.2-rc0中引入，提交记录3d8b694中加入了如下注释：

Add git remote set-branches

Add ‘git remote set-branches’ for changing the list of tracked refs for a remote repository with one "porcelain-level" command.
This complements the longstanding ‘git remote add --track’ option.

The interface is based on the ‘git remote set-url’ subcommand.

git remote set-branches base --add C
git remote set-branches base A B D
git remote set-branches base --delete D; # not implemented

所以，与其使用默认的全局refspec来跟踪在refs/remotes/<name>/命名空间下的所有分支，我们需要更新refspec，只跟踪<branch>分支。

git remote add -t main o2 https://github.com/git/git

会给：

[remote "o2"]
        url = https://github.com/git/git
        fetch = +refs/heads/main:refs/remotes/o2/main

改写成：

    fetch = +refs/heads/*:refs/remotes/origin/*

添加一个分支的步骤如下：

   git remote set-branches o2 --add master
[remote "o2"]
        url = https://github.com/git/git
        fetch = +refs/heads/main:refs/remotes/o2/main
        fetch = +refs/heads/main:refs/remotes/o2/master

- VonC