如何列出某个 git 分支中的所有标签
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How to list all tags within a certain git branch
提问by mkmostafa
I have a couple of branches in my git repo. I would like to know if there is a command that lists all the tags within a certain branch not all the tags in the whole repo.
我的 git repo 中有几个分支。我想知道是否有一个命令列出某个分支中的所有标签，而不是整个 repo 中的所有标签。
I tried git tag --contains. but it didn't work as expected.
我试过了 git tag --contains。但它没有按预期工作。
Image 1, there's a list of all the tags with their hashes (the marked two tags have the same hash/commit)
Image 2, as you can see I'm on a branch called "b" 
Image 3, I queried which branch contains the hash of both tags (both have same hash) and it said they are on branch "b" (the one I'm currently on)
图 1，有一个包含所有标签及其散列的列表（标记的两个标签具有相同的散列/提交）
图 2，如您所见，我在一个名为“b”的分支上图 3，我查询了哪个分支包含两个标签的哈希值（都具有相同的哈希值），并表示它们在分支“b”（我目前所在的分支）上
Image 4, describing the branch tags, It only gave me ONE tag
图 4，描述分支标签，它只给了我一个标签
Image 5, also describing the tags of the hash that is supposed to point to the commit that is tagged with both tags, it only shows ONE tag again
图 5 还描述了应该指向带有两个标签的提交的哈希标签，它只再次显示一个标签
回答by qwertzguy
Use git tag --sort='creatordate' --mergedto list all tags accessible/reachable from HEAD and sort them chronologically.
使用git tag --sort='creatordate' --merged列出所有标签从头部接近/到达和排序他们按时间顺序。
You can specify a ref if you don't want HEAD, like git tag --sort='creatordate' --merged mybranch
如果你不想要 HEAD，你可以指定一个 ref，比如 git tag --sort='creatordate' --merged mybranch
回答by CodeManX
To print all tags, that point to a certain commit, you can do:
要打印指向某个提交的所有标签，您可以执行以下操作：
git for-each-ref refs/tags | grep HASH
Or if you are on Windows and don't use Cygwin or similar:
或者，如果您使用的是 Windows 并且不使用 Cygwin 或类似软件：
git for-each-ref refs/tags | find "HASH"
If you want the tag name only, you can't use Git's --format, because we need it for grep'ing. Thus we need to strip the stuff we aren't interested in away in the final step (Linux/Cygwin):
如果您只想要标签名称，则不能使用 Git 的--format，因为我们需要它来进行 grep'ing。因此，我们需要在最后一步（Linux/Cygwin）中去除我们不感兴趣的东西：
git for-each-ref refs/tags | grep HASH | sed -r "s/.*refs\/tags\/(.*)//"
Regarding the initial question:
关于最初的问题：
This iterates over all tags in all branches, asks git which branches contain each tag and filters based on the supplied branch name - but be warned, it's super slow:
这将遍历所有分支中的所有标签，根据提供的分支名称询问 git 哪些分支包含每个标签和过滤器 - 但请注意，它非常慢：
git for-each-ref refs/tags --format "%(refname)" | while read x
do
if git branch --contains $x | grep -q "^[ *] master$"
then echo $x
fi
done
The following taken from another answeris much faster:
以下来自另一个答案的速度要快得多：
git log --simplify-by-decoration --decorate --pretty=oneline "master" | fgrep 'tag: '
... but if multiple tags point to the same commit, it will produce:
...但如果多个标签指向同一个提交，它将产生：
(HEAD, tag: Test-Tag1, tag: Test-Tag2, Test-Tag3, fork/devel, devel)
(tag: Another-Tag)
(tag: And-Another)
(three tags Test-Tag*pointing to the same commit)
（三个标签Test-Tag*指向同一个提交）
I wrote a Python script that outputs tag names only, one per line (tested on Windows only):
我写了一个 Python 脚本，它只输出标签名称，每行一个（仅在 Windows 上测试）：
import os
from subprocess import call
print("-" * 80)
dirpath = r"D:\Projekte\arangodb" # << Put your repo root path here!
tagdir = os.path.join(dirpath, ".git", "refs", "tags")
commitspath = os.path.join(dirpath, "_commit_list.tmp")
# could probably read from stdin directly somewhow instead of writing to file...
# write commits in local master branch to file
os.chdir(dirpath)
os.system("git rev-list refs/heads/master > " + commitspath)
tags = {}
for tagfile in os.listdir(tagdir):
with open(os.path.join(tagdir, tagfile), "r") as file:
tags[file.read().strip()] = tagfile
tags_set = set(tags)
commits = {}
with open(commitspath, "r") as file:
for line in file:
commits[line.strip()] = 1
os.remove(commitspath)
commits_set = set(commits)
for commit in sorted(commits_set.intersection(tags_set), key=lambda x: tags[x]):
print(tags[commit])
Result:
结果：
Test-Tag1
Test-Tag2
Test-Tag3
Another-Tag
And-Another
The commit hash could optionally be printed too for every tag, simply modify the last line to print(commit, tags[commit]). The script seems to perform very well by the way!
也可以选择为每个标签打印提交哈希，只需将最后一行修改为print(commit, tags[commit]). 顺便说一句，剧本似乎表现得很好！
Ideally, git would support something like the following command to avoid all these workarounds:
理想情况下，git 将支持类似以下命令的内容，以避免所有这些变通方法：
git tag --list --branch master
