如何判断标记指向 Git 中的哪个提交？
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How to tell which commit a tag points to in Git?
提问by Igor Zevaka
I have a bunch of unannotated tags in the repository and I want to work out which commit they point to. Is there a command that that will just list the tags and their commit SHAs? Checking out the tag and looking at the HEAD seems a bit too laborious to me.
我在存储库中有一堆未注释的标签，我想弄清楚它们指向哪个提交。是否有只列出标签及其提交 SHA 的命令？检查标签并查看 HEAD 对我来说似乎有点太费力了。
Update
更新
I realized after I went through the responses that what I actually wanted was to simply look at the history leading up to the tag, for which git log <tagname>is sufficient.
看完这些回复后，我意识到我真正想要的是简单地查看导致标记的历史记录，这git log <tagname>已经足够了。
The answer that is marked as answer is useful for getting a list of tags and their commits, which is what I asked. With a bit of shell hackery I'm sure it's possible to transform those into SHA+Commit message.
标记为答案的答案对于获取标签列表及其提交很有用，这就是我所问的。通过一些 shell 黑客，我确信可以将它们转换为 SHA+Commit 消息。
采纳答案by mipadi
One way to do this would be with git rev-list. The following will output the commit to which a tag points:
一种方法是使用git rev-list. 以下将输出标记指向的提交：
$ git rev-list -n 1 $TAG
You could add it as an alias in ~/.gitconfigif you use it a lot:
~/.gitconfig如果你经常使用它，你可以将它添加为别名：
[alias]
tagcommit = rev-list -n 1
And then call it with:
然后调用它：
$ git tagcommit $TAG
回答by CB Bailey
git show-ref --tags
For example, git show-ref --abbrev=7 --tagswill show you something like the following:
例如，git show-ref --abbrev=7 --tags将显示如下内容：
f727215 refs/tags/v2.16.0
56072ac refs/tags/v2.17.0
b670805 refs/tags/v2.17.1
250ed01 refs/tags/v2.17.2
回答by Hlung
Just use git show <tag>
只需使用 git show <tag>
However, it also dumps commit diffs. To omit those diffs, use git log -1 <tag>. (Thanks to @DolphinDream and @demisx !)
但是，它也会转储提交差异。要省略这些差异，请使用git log -1 <tag>. （感谢@DolphinDream 和@demisx！）
回答by orip
On my repository, git show-ref TAGshows the tag's hash, not the hash of the commit it points to.
在我的存储库中，git show-ref TAG显示标签的哈希值，而不是它指向的提交的哈希值。
git show-ref --dereference TAGshows, additionally, the commit being pointed at.
git show-ref --dereference TAG此外，还显示了所指向的提交。
回答by orip
From Igor Zevaka:
来自伊戈尔·泽瓦卡：
Summary
概括
Since there are about 4 almost equally acceptable yet different answers I will summarise all the different ways to skin a tag.
由于大约有 4 个几乎同样可接受但不同的答案，我将总结所有不同的标签外观。
git rev-list -1 $TAG(answer).git rev-listoutputs the commits that lead up to the$TAGsimilar togit logbut only showing the SHA1 of the commit. The-1limits the output to the commit it points at.git show-ref --tags(answer) will show all tags (local and fetched from remote) and their SHA1s.git show-ref $TAG(answer) will show the tag and its path along with the SHA1.git rev-parse $TAG(answer) will show the SHA1 of an unannotated tag.git rev-parse --verify $TAG^{commit}(answer) will show a SHA1 of both annotated and unannotated tags. On Windows usegit rev-parse --verify %TAG%^^^^{commit}(four hats).cat .git/refs/tags/*orcat .git/packed-refs(answer) depending on whether or not the tag is local or fetched from remote.
git rev-list -1 $TAG（答案）。git rev-list输出导致$TAG类似git log但仅显示提交的 SHA1 的提交。将-1输出限制为它指向的提交。git show-ref --tags( answer) 将显示所有标签（本地和从远程获取）及其 SHA1。git show-ref $TAG( answer) 将显示标签及其路径以及 SHA1。git rev-parse $TAG( answer) 将显示未注释标签的 SHA1。git rev-parse --verify $TAG^{commit}( answer) 将显示带注释和未注释标签的 SHA1。在 Windows 上使用git rev-parse --verify %TAG%^^^^{commit}（四顶帽子）。cat .git/refs/tags/*或cat .git/packed-refs（答案）取决于标签是本地的还是从远程获取的。
回答by Jakub Nar?bski
Use
用
git rev-parse --verify <tag>^{commit}
(which would return SHA-1 of a commit even for annotated tag).
（即使对于带注释的标签，它也会返回提交的 SHA-1）。
git show-ref <tag>would also work if <tag>is not annotated. And there is always git for-each-ref(see documentation for details).
git show-ref <tag>如果<tag>没有注释也可以工作。并且总是存在git for-each-ref（有关详细信息，请参阅文档）。
回答by Tuong Le
How about this:
这个怎么样：
git log -1 $TAGNAME
OR
或者
git log -1 origin/$TAGNAME
回答by Daniel Little
In order to get the sha/hash of the commit that a tag refers to (not the sha of the tag):
为了获得标签引用的提交的 sha/hash（不是标签的 sha）：
git rev-list -1 <tag>
git rev-list -1 <tag>
回答by gahooa
I'd also like to know the "right" way, but in the meantime, you can do this:
我也想知道“正确”的方式，但与此同时，你可以这样做：
git show mytag | head -1
回答by Terrence Reilly
Even though this is pretty old, I thought I would point out a cool feature I just found for listing tags with commits:
尽管这已经很老了，但我想我会指出我刚刚发现的一个很酷的功能，用于列出带有提交的标签：
git log --decorate=full
It will show the branches which end/start at a commit, and the tags for commits.
它将显示以提交结束/开始的分支，以及提交的标签。
