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

user_129404 0
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I have a bunch of unannotated tags in the repository and I want to work out which commit they point to. Is there a command that that will just list the tags and their commit SHAs? Checking out the tag and looking at the HEAD seems a bit too laborious to me.

Update

I realized after I went through the responses that what I actually wanted was to simply look at the history leading up to the tag, for which git log <tagname> is sufficient.

The answer that is marked as answer is useful for getting a list of tags and their commits, which is what I asked. With a bit of shell hackery I'm sure it's possible to transform those into SHA+Commit message.

git-tag git
22 Answers

Short post-Git-2 answer

I know this question has been out here for quite a while. And the answer from CB Bailey is 100% correct: git show-ref --tags --abbrev

I like this one better since it uses git tag:

git tag --list --format '%(refname:short) %(objectname:short)'

Simple. Short.

PS alias it as git taglist with this command:

git config --global alias.taglist "tag --list --format '%(refname:short) %(objectname:short)'"
user_1093050

The --format option can be used to show both tag hash and the commit hash, and to distinguish between lightweight and annotated tags.

git tag --format="%(color:bold cyan)== %(refname:short) ==%(if)%(object)%(then)%0aTag Hash: %(objectname)%0aTag Date: %(taggerdate:iso-local)%0a  Commit: %(object) %0a%0a%(contents)%(else)%0a(lightweight tag)%0a  Commit: %(objectname)%(end)%0a"

Gives output similar to:

== b2lightweight ==
(lightweight tag)
  Commit: 0450fae4352dbbbf088419757eda32711316a02e

== c3_annotated ==
Tag Hash: 19961d8678a09a319a9d6c398c79f27cc23d610c
Tag Date: 2021-08-06 15:18:48 -0600
  Commit: 85be6e80c109ce44d78f0ca0da8e1ec53817b24c

This is my tag message.

It has multiple lines.

Another line.

To define as a git alias, you can edit the global git config with git config --global -e and add the following:

[alias]
    tag-verbose = tag --format='%(color:bold cyan)== %(refname:short) ==%(if)%(object)%(then)%0aTag Hash: %(objectname)%0aTag Date: %(taggerdate:iso-local)%0a  Commit: %(object) %0a%0a%(contents)%(else)%0a(lightweight tag)%0a  Commit: %(objectname)%(end)%0a'

The alias still allows filtering, e.g.

C:\playground>git tag-verbose -l *b2*
== b2lightweight ==
(lightweight tag)
  Commit: 0450fae4352dbbbf088419757eda32711316a02e

For additional information on the --format options see the "Field Names" section under git help for-each-ref. (git help tag states "The format is the same as that of git-for-each-ref")

Nathan_249540

From git mailing list, here is the way to get the list of commit hashes for tags with automatic dereferencing for annotated tags:

git for-each-ref --format='%(if)%(*objectname)%(then)%(*objectname)%(else)%(objectname)%(end) %(refname)' refs/tags
user_2392470

Can use below, It will give the commit hash
git show -s --format=%H <tag>^{commit}

If abbreviated commit hash required, git show -s --format=%h <tag>^{commit}

user_73152970

Hacky solution

Parse the .git/packed-refs and format it as {tag}\t{sha}

sed -n '/ refs\/tags/ { s@\([^ ]*\) refs/tags/\(.*\)@\2\t\1@; p}' .git/packed-refs
user_15071240

git rev-list --no-walk = git rev-parse git rev-parse [tag_name]

user_150957270
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