How to list all tags pointing to a specific commit in git

Question

I have seen the commands git describe and git-name-rev but I have not managed to get them to list more than one tag.

Example: I have the sha1 48eb354 and I know the tags A and B point to it. So I want a git command git {something} 48eb354 that produce output similar to "A, B". I am not interested in knowing references relative other tags or branches just exact matches for tags.

Answer 1

git tag --points-at HEAD

Shows all tags at HEAD, you can also substitute HEAD with any sha1 id.

Answer 2

You can use:

git tag --contains <commit>

that shows all tags at certain commit. It can be used instead of:

git tag --points-at HEAD

that is available only from 1.7.10.

Answer 3

git show-ref --tags -d | grep ^48eb354 | sed -e 's,.* refs/tags/,,' -e 's/\^{}//'

should work for both lightweight and annotated tags.

Answer 4

(Edit: This answer was written long before git tag had the --points-at switch – which is what you would use nowadays.)

git for-each-ref --format='%(objectname) %(refname:short)' refs/tags/ |
  grep ^$commit_id |
    cut -d' ' -f2

Pity it can’t be done more easily. Another flag on git tag to include commit IDs could express that git for-each-ref invocation naturally.