GIT：如何正确地将远程分支下载到本地？

Question

想要下载另一个远程分支进行维护，然后再推回去。

所以我尝试了：

git switch another_branch
fatal: invalid reference: another_branch

尝试过：

git checkout --track origin/another_branch
fatal: 'origin/another_branch' is not a commit and a branch 'another_branch' cannot be created from it

尝试过：

git checkout another_branch
error: pathspec 'another_branch' did not match any file(s) known to git

尝试过：

git fetch origin another_branch:another_branch
From gitlab.my-inc.com:projname/proj
* [new branch]      another_branch   -> another_branch
git checkout another_branch
Switched to branch 'another_branch'

看起来不错但是：

git pull
fatal: refusing to merge unrelated histories

git branch -vv
* another_branch            421f45e normal commit comments

git branch --set-upstream-to origin/another_branch
error: the requested upstream branch 'origin/another_branch' does not exist
hint:
hint: If you are planning on basing your work on an upstream
hint: branch that already exists at the remote, you may need to
hint: run "git fetch" to retrieve it.
hint:
hint: If you are planning to push out a new local branch that
hint: will track its remote counterpart, you may want to use
hint: "git push -u" to set the upstream config as you push.

所以，我尝试过：

git fetch
git fetch origin another_branch
From gitlab.my-inc.com:projname/proj
* branch            another_branch   -> FETCH_HEAD

并且仍然得到：

git branch --set-upstream-to origin/another_branch
error: the requested upstream branch 'origin/another_branch' does not exist
hint:
hint: If you are planning on basing your work on an upstream
hint: branch that already exists at the remote, you may need to
hint: run "git fetch" to retrieve it.
hint:
hint: If you are planning to push out a new local branch that
hint: will track its remote counterpart, you may want to use
hint: "git push -u" to set the upstream config as you push.

现在我觉得完全不是人类看到其他人在他们的git上玩得很好......

所以请帮忙，并提前致谢。

Answer 1

只要 gitbranch -avv 不列出origin/another_branch，简单的 git switch another_branch 就不起作用。

它的 猜测模式 将使命令为：

如果未找到 ，但在一个远程（称为 ）中确实存在具有匹配名称的跟踪分支，视为等同于：

$ git switch -c <分支>; --track <远程>/<分支>

根据您的情况，请检查遥控器的refspec

git config remote.origin.fetch

或者，正如 torek 在 comments，在多值的情况下：

git config --get-all remote.origin.fetch

它应该像

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

这意味着它应该获取所有分支，而不是仅获取一个分支，例如：

+refs/heads/main:refs/remotes/origin/main

如果它不获取所有分支，使用该 refspec (+refs/heads/*:refs/remotes/origin/*) 进行设置，git fetch 将能够向您显示远程存储库，希望包括， 起源/another_branch