Get git current branch/tag name

问题

How can I get the current branch or tag name for my working copy? I have seen references that indicate rev-parse --abbrev-ref HEAD will give branch name, but this doesn't work if the checkout is of a tag, in which case it just returns 'HEAD'. I need to somehow get the tag name of these revisions.

To be clear, I want one of two possible names:

1. If the current checkout is the HEAD of a branch, I want the branch name
2. If it is a detached HEAD, I want the tag name (on the assumption there is a tag)

回答1:

I think you want this:

git symbolic-ref -q --short HEAD || git describe --tags --exact-match

That will output the value of HEAD, if it's not detached, or emit the tag name, if it's an exact match. It'll show you an error otherwise.

回答2:

This command can print name in this priority: tag > branch > commit

git describe --tags --exact-match 2> /dev/null \
  || git symbolic-ref -q --short HEAD \
  || git rev-parse --short HEAD

来源：https://stackoverflow.com/questions/18659425/get-git-current-branch-tag-name