问题描述
我注意到有2个HEAD:
I noticed there are 2 HEADs:
- .git \ HEAD
- .git \ refs \ remotes \ origin \ HEAD
当我使用git show-ref HEAD时，它只会给我以下信息:
When I use git show-ref HEAD, it only gives me this:
ce0762c073b407d794f54f0b5d2a50375fdcb609 refs/remotes/origin/HEAD
当我使用git rev-parse HEAD时，它为我提供了.git \ HEAD的值:
Whle when I use git rev-parse HEAD, it gives me the value of .git\HEAD:
a758e523fe40e799194878bac567b7f4b8eec2b9
为什么Git使用2个不同的命令来显示HEAD?有什么强烈的理由吗?
Why Git use 2 different commands to show HEAD? Any strong reason?
推荐答案
git-show-ref 显示存储库中的引用及其提交ID的列表.它可能应该称为git-show-refs.优先于直接引用.git目录中的文件.
git-show-ref shows a list of references in your repository and their commit IDs. It should probably be called git-show-refs. It's preferred over directly referencing files in the .git directory.
当您说git show-ref HEAD时，您并不需要输入HEAD.您要查找的是列表中与模式HEAD匹配的所有引用. HEAD本身通常会被过滤掉，所以您会得到refs/remotes/origin/HEAD.您可以在--head中包含HEAD.
When you say git show-ref HEAD you're not asking for HEAD. What you're asking for is any references in the list which match the pattern HEAD. HEAD itself is normally filtered out, so you get refs/remotes/origin/HEAD. You can include HEAD with --head.
$ git show-ref --head HEAD
f37beeea95f3b0e6b064f6d4b5f835a058e0568c HEAD
aa1124b89f38eed793e2b9f2d2b2ba5d80a27a20 refs/remotes/origin/HEAD
因此，您不应该使用git show-ref <ref>来查找引用.
So you shouldn't be using git show-ref <ref> to look up references.
git-rev-parse 带有修订参数并返回提交ID .它的意思是要处理可以引用提交的多种不同方式.例如...
git-rev-parse takes a revision parameter and gives back a commit ID. Its meant to deal with the myriad different ways you can refer to a commit. For example...
$ git rev-parse --verify master
aa1124b89f38eed793e2b9f2d2b2ba5d80a27a20
$ git rev-parse --verify heads/master
aa1124b89f38eed793e2b9f2d2b2ba5d80a27a20
$ git rev-parse --verify refs/heads/master
aa1124b89f38eed793e2b9f2d2b2ba5d80a27a20
git rev-parse --verify <ref>是查找引用的提交ID所应使用的.
git rev-parse --verify <ref> is what you should be using to look up the commit ID of a reference.
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