See what git branches (or tags) point to given commit hash?

Question

I can achieve the effect I want by running:

git log -1 --decorate --oneline <commit hash>

and reading the tag names and branch names.

Is there a way to get this information directly?

Essentially what I want is the inverse operation of:

git rev-parse <tag or branch>^{commit}

@Code-Apprentice, that is a very different question, not a duplicate. The answers there are all information I was aware of when I wrote this question. — Wildcard, Feb 17 '16 at 00:46
I realized that after looking a little more closely. I rescinded my close vote but didn't delete the automatically generated comment. My apologize for the confusion. — Code-Apprentice, Feb 17 '16 at 00:48

MForster · Accepted Answer · 2016-02-16T23:39:34.163

4

Git 2.7.0 introduced a --points-at flag to various subcommands:

git for-each-ref --points-at <commit> --format '%(refname)'
git branch --points-at <commit>
git tag --points-at <commit>

edited Feb 16 '16 at 23:39

answered Feb 16 '16 at 23:22

MForster

8,806
5
28
32

Thanks, but this doesn't work in git 2.5.3. (When was `--points-at` introduced?) Any other way that will work in older versions? – Wildcard Feb 16 '16 at 23:24
I don't know. Does `git branch --points-at ` (same for `tag`) work? – MForster Feb 16 '16 at 23:30
1

Apparently the flag was introduced on 2.7.0 (looking at the man page). – MForster Feb 16 '16 at 23:42

David Deutsch · Answer 2 · 2016-02-16T23:40:15.833

3

git branch --contains <commit>
git tag --contains <commit>

Edit: To find the refs that point exactly to hash abc123, do:

git show-ref | awk '/^abc123/ {print $2}'

edited Feb 16 '16 at 23:40

answered Feb 16 '16 at 23:20

David Deutsch

17,443
4
47
54

Not quite what I wanted; I only want to know of any tags or branches that point to *exactly* the commit hash I'm specifying. – Wildcard Feb 16 '16 at 23:22
1

Ah, gotcha. MForster's answer is what you need then. – David Deutsch Feb 16 '16 at 23:23
@Wildcard, I added a way to do it with `awk` as well. – David Deutsch Feb 16 '16 at 23:40

score 2 · Answer 3 · edited May 23 '17 at 11:45

If you don't have git 2.7+ you can still use git for-each-ref to find refs that point at specific commits, by filtering the for-each-ref output:

git for-each-ref | grep ^1234567

for instance. [Edit: this is essentially the same as using git show-ref, except that following tags to their target requires more typing. The for-each-ref output is meant for scripts, though, so if you want to write a script, it's probably better to use this than to use git show-ref.]

See what git branches (or tags) point to given commit hash?

3 Answers3

Linked

Related