git 如何检查给定远程存储库上是否存在远程分支？
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How to check if remote branch exists on a given remote repository?
提问by Keen
I need to do a subtree merge for a specific branch, if it exists on a given remote repository. The problem is that the remote repository is not checked out locally, so I can't use git branch -r. All I have is a remote address, something like this https://github.com/project-name/project-name.git. Is there a way to list remote branches just by a remote address? I couldn't find anything usefull :(
我需要为特定分支进行子树合并，如果它存在于给定的远程存储库中。问题是远程存储库没有在本地签出，所以我不能使用git branch -r. 我只有一个远程地址，就像这样 https://github.com/project-name/project-name.git。有没有办法只通过远程地址列出远程分支？我找不到任何有用的东西:(
回答by user487772
$ git ls-remote --heads [email protected]:user/repo.git branch-name
In case branch-nameis found you will get the following output:
如果branch-name找到，您将获得以下输出：
b523c9000c4df1afbd8371324083fef218669108 refs/heads/branch-name
Otherwise no output will be sent.
否则不会发送任何输出。
So piping it to wcwill give you 1or 0:
所以管道它wc会给你1或0：
$ git ls-remote --heads [email protected]:user/repo.git branch-name | wc -l
Alternatively you can set --exit-codeflag on git ls-remotewhich will return exit code 2in case no matching refs are found.
或者，您可以设置--exit-code标志，如果找不到匹配的引用git ls-remote，将返回退出代码2。
回答by Dogbert
git ls-remote --heads https://github.com/rails/rails.git
5b3f7563ae1b4a7160fda7fe34240d40c5777dcd refs/heads/1-2-stable
81d828a14c82b882e31612431a56f830bdc1076f refs/heads/2-0-stable
b5d759fd2848146f7ee7a4c1b1a4be39e2f1a2bc refs/heads/2-1-stable
c6cb5a5ab00ac9e857e5b2757d2bce6a5ad14b32 refs/heads/2-2-stable
e0774e47302a907319ed974ccf59b8b54d32bbde refs/heads/2-3-stable
13ad87971cc16ebc5c286b484821e2cb0fc3e3b1 refs/heads/3-0-stable
3df6c73f9edb3a99f0d51d827ef13a439f31743a refs/heads/3-1-stable
f4db3d72ea564c77d5a689b850751ce510500585 refs/heads/compressor
c5a809e29e9213102351def7e791c3a8a67d7371 refs/heads/deps_refactor
821e15e5f2d9ef2aa43918a16cbd00f40c221e95 refs/heads/encoding
8f57bf207ff4f28fa8da4544ebc573007b65439d refs/heads/master
c796d695909c8632b4074b7af69a1ef46c68289a refs/heads/sass-cleanup
afd7140b66e7cb32e1be58d9e44489e6bcbde0dc refs/heads/serializers
回答by РАВИ
Another way you can use in the current folder if it is a git repoto run
如果它是要运行的git repo，则可以在当前文件夹中使用的另一种方法
git branch -a | egrep 'remotes/origin/${YOUR_BRANCH_NAME}$'
回答by Ajo Paul
You can also use this:
你也可以使用这个：
git show-branch remotes/origin/<<remote-branch-name>>
returns latest commit and value of $? is 0 otherwise returns "fatal: bad sha1 reference remotes/origin/<>" and value of $? is 128
返回最新提交和 $? 是 0 否则返回“fatal: bad sha1 reference remotes/origin/<>”和$的值？是 128
回答by Amitesh
Then no need to manually pass the repository name everytime.
这样就无需每次都手动传递存储库名称。
git ls-remote origin <branch>
Instead of
代替
git ls-remote <full repo url> <branch>
Example :
例子 ：
git ls-remote [email protected]:landmarkgroupme/in-store-application.git uat_21dec
OR
或者
git ls-remote origin uat_21dec
Both will give same output :
两者都会给出相同的输出：
More on Origin: Git has the concept of "remotes", which are simply URLs to other copies of your repository. When you clone another repository, Git automatically creates a remote named "origin" and points to it. You can see more information about the remote by typing git remote show origin .
有关 Origin 的更多信息：Git 有“远程”的概念，它只是指向您的存储库其他副本的 URL。当您克隆另一个存储库时，Git 会自动创建一个名为“origin”的远程并指向它。您可以通过键入 git remote show origin 来查看有关遥控器的更多信息。
回答by sagunms
You can do something like this in the Bash terminal. Just replace the echos with the commands you want to execute.
您可以在 Bash 终端中执行类似操作。只需用您要执行的命令替换回声即可。
if git ls-remote https://username:[email protected]/project-name/project-name.git | grep -sw "remote_branch_name" 2>&1>/dev/null; then echo "IT EXISTS..START MERGE" ; else echo "NOT FOUND" ; fi
Hope it helps.
希望能帮助到你。
回答by Ian Kemp
All of the answers here are Linux shell-specific, which doesn't help very much if you're in an environment that doesn't support those sort of operations - for example, Windows' command prompt.
这里的所有答案都是特定于 Linux shell 的，如果您处于不支持此类操作的环境中，这将没有多大帮助 - 例如，Windows 的命令提示符。
Fortunately git ls-remoteaccepts an --exit-codeargument that returns 0 or 2 depending on whether the branch exists or not, respectively. So:
幸运的是，根据分支是否存在，分别返回 0 或 2git ls-remote的--exit-code参数。所以：
git ls-remote --exit-code --heads origin <branch-that-exists-in-origin>
git ls-remote --exit-code --heads origin <branch-that-exists-in-origin>
will return 0, and
将返回 0，并且
git ls-remote --exit-code --heads origin <branch-that-only-exists-locally>
git ls-remote --exit-code --heads origin <branch-that-only-exists-locally>
will return 2.
将返回 2。
For PowerShell, you can simply use the built-in truthiness handling semantics:
对于 PowerShell，您可以简单地使用内置的真实性处理语义：
if (git ls-remote --heads origin <branch-that-exists-in-origin>) { $true } else
{ $false }
if (git ls-remote --heads origin <branch-that-exists-in-origin>) { $true } else
{ $false }
yields $true, while:
产量$true，而：
if (git ls-remote --heads origin <branch-that-only-exists-locally>) { $true } else
{ $false }
if (git ls-remote --heads origin <branch-that-only-exists-locally>) { $true } else
{ $false }
yields $false.
产量$false。
回答by hIpPy
$ git ls-remote --heads origin <branch> | wc -l
works most of the time.
大部分时间都在工作。
But will not work if branch matches partially as below,
但如果分支部分匹配如下，则不起作用，
$ git branch -a
creative/dev
qa/dev
$ git ls-remote --heads origin dev | wc -l
2
Use
用
git ls-remote --heads origin <branch> | \
cut -d$'\t' -f2 | \
sed 's,refs/heads/,,' | \
grep ^<branch>$ | wc -l
if you want a reliable way.
如果你想要一个可靠的方式。
If you want to use in script and do not want to assume originas default remote then
如果您想在脚本中使用并且不想假设origin为默认远程，那么
git ls-remote --heads $(git remote | head -1) "$branch" | \
cut -d$'\t' -f2 | \
sed 's,refs/heads/,,' | \
grep ^"$branch"$ | wc -l
should work.
应该管用。
Note that git branch -a | grep ...is not reliable as it may be a while since the last fetchwas run.
请注意，这git branch -a | grep ...并不可靠，因为距离上次fetch运行可能已经有一段时间了。
回答by Noufal Ibrahim
You can add the repository you have as a remote using git remote add something https://github.com/project-name/project-name.gitand then do a git remote show somethingto get all information about the remote. This requires a network connection and is useful for human use.
您可以将您拥有的存储库添加为远程使用git remote add something https://github.com/project-name/project-name.git，然后执行 agit remote show something以获取有关远程的所有信息。这需要网络连接，对人类使用很有用。
Alternatively, do a git fetch something. This will fetch all branches on the remote called somethingand keep them in your local repository. You can then merge them into your local branch as you please. I recommend this path since if you finally decide that you haveto merge, this is what you need to do.
或者，执行一个git fetch something. 这将获取远程调用上的所有分支something并将它们保存在您的本地存储库中。然后，您可以根据需要将它们合并到您的本地分支中。我推荐这条路径，因为如果您最终决定必须合并，这就是您需要做的。
OT: Your use of "checked out locally" indicates that you're approaching this from a centralised version control system standpoint. That's usually a dead end when you're dealing with git. It uses words like "checkout" etc. differently from how older systems did.
OT：您对“本地签出”的使用表明您是从集中式版本控制系统的角度来解决这个问题的。当您处理 git 时，这通常是一个死胡同。它使用“结帐”等词，与旧系统的使用方式不同。
回答by nos
You can try
你可以试试
git diff --quiet @{u} @{0}
Here @{u}refers to remote/upstream, and @{0}refers to current local HEAD (with newer version of git, @{0}can be shortened as @). If remote does not exist, it errors out.
这里@{u}指的是远程/上游，@{0}指的是当前本地的 HEAD（在 git 版本较新的情况下，@{0}可以缩写为@）。如果 remote 不存在，则会出错。
With git 2.16.2 (I am not sure which version is the first to have this functionality, for example, git 1.7.1 doesn't have it), you can do
使用 git 2.16.2（我不确定哪个版本是第一个具有此功能的版本，例如 git 1.7.1 没有），您可以这样做
git checkout
If a remote branch exists, there will be some output, like
如果存在远程分支，则会有一些输出，例如
Your branch is up to date with 'origin/master'
Otherwise there is no output.
否则没有输出。
