如何获取远程存储库中的提交哈希的git标签? [英] How to get git tag for a commit hash in a remote repository?

问题描述

您可以通过执行以下操作获得指向本地存储库中特定提交的标记:

You can get the tag which points at a particular commit in your local repository by doing this:

git tag --points-at <commit-hash>

或者这个:

git describe --exact-match <commit-hash>

是否甚至可以在不克隆存储库的情况下使用远程存储库呢?

Is this possible for a remote repository too, without even cloning the repository?

推荐答案

git ls-remote -t <remote> | grep <commit-hash>

git ls-remote列出了远程存储库中的所有ref及其sha1值. -t仅限于标签.如果您位于本地git存储库中，并且远程目录为origin，则可以省略<remote>.如果指定<remote>(如https://github.com/foo/bar.git)，则可以在任何地方运行该命令.如果命令中存在<remote>，则-t必须在<remote>之前.详情请参见 git-ls-remote .

git ls-remote lists all the refs and their sha1 values in the remote repository. -t limits to tags only. If you are under a local git repository, and the remote is origin, <remote> can be omitted. You can run the command anywhere if you specify <remote> like https://github.com/foo/bar.git. -t must come before <remote> if <remote> exists in the command. See more at git-ls-remote.

更新:

否，对于git ls-remote，没有类似--points-at的内容.如果您知道标签名称，则git ls-remote <remote> <tag_name>返回sha和标签，但是不可能从sha返回标签名称.

No, there is not something like --points-at for git ls-remote. If you know a tag name, git ls-remote <remote> <tag_name> returns the sha and the tag, but not possible from a sha to a tag name.

有两种类型的标签.一个是轻量级标签，另一个是带注释的标签.该former只是一个ref，后者是一个git对象. Git有四种对象，commit，tag，tree和blob.

There are two types of tags. One is a lightweight tag, and the other is an annotated tag. The formmer is only a ref and the latter is a git object. Git has four kinds of objects, commit, tag, tree and blob.

如果v1.0是轻量标签，则v1.0和v1.0^{}相同.

If v1.0 is a lightweight tag, v1.0 and v1.0^{} are the same.

如果v1.0是带注释的标签，则v1.0是标签对象，而v1.0^{}是它引用的提交.作为带注释的标签，v1.0和v1.0^{}对于许多git命令来说都是相同的，例如git log，git show，git diff，当它们解析为commit或tree时.在git log v1.0中，v1.0是commit-ish.作为commit-ish，v1.0和v1.0^{}引用同一提交.因此，我们从git log v1.0和git log v1.0^{}获得相同的输出.对于其他git命令(如git rev-parse)，它们是不同的.在git rev-parse -t v1.0中，v1.0是标记对象.在git rev-parse -t v1.0^{}中，v1.0^{}是提交对象.

If v1.0 is an anotated tag, v1.0 is a tag object and v1.0^{} is the commit it refers to. As an anotated tag, v1.0 and v1.0^{} are the same for many git commands, for example git log, git show, git diff, when they are resolved as commit or tree. In git log v1.0, v1.0 is a commit-ish. As a commit-ish, v1.0 and v1.0^{} refer to the same commit. So we get the same output from git log v1.0 and git log v1.0^{}. For other git commands like git rev-parse, they are different. In git rev-parse -t v1.0, v1.0 is a tag object. And in git rev-parse -t v1.0^{}, v1.0^{} is a commit object.

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