How to tell which commit a tag points to in Git?

How to tell which commit a tag points to in Git?

回答1

One way to do this would be with git rev-list. The following will output the commit to which a tag points:

$ git rev-list -n 1 $TAG

NOTE This works for both Annotated and Unannotated tags

You could add it as an alias in ~/.gitconfig if you use it a lot:

[alias]
  tagcommit = rev-list -n 1

And then call it with:

$ git tagcommit $TAG

Possible pitfall: if you have a local checkout or a branch of the same tag name, this solution might get you "warning: refname 'myTag' is ambiguous". In that case, try increasing specificity, e.g.:

$ git rev-list -n 1 tags/$TAG

 

Why not use git rev-parse <tag>? Or git rev-list -1 <tag>? – Jakub Narębski Dec 7 '09 at 23:47

@ Jakub: git rev-parse $TAG returns the SHA1 of the tag object, not the commit to which it points. git rev-list -1 works, though. – mipadi Dec 8 '09 

 

 

回答2

WARNING This only works for Unannotated tags Therefore it is safer to use the accepted answer which works in the general case https://stackoverflow.com/a/1862542/1586965

git show-ref --tags

For example, git show-ref --abbrev=7 --tags will show you something like the following:

f727215 refs/tags/v2.16.0
56072ac refs/tags/v2.17.0
b670805 refs/tags/v2.17.1
250ed01 refs/tags/v2.17.2