Re: git tag --no-merged?

From: Kyle J. McKay <mackyle@gmail.com>
Date: Feb 5, 2015, 00:22 UTC
Message-ID: <6A0F0356-2AF1-487D-A20E-FB6051D9E689@gmail.com>
In-Reply-To: <alpine.DEB.2.00.1502041615110.30476@ds9.cixit.se>

On Feb 4, 2015, at 07:19, Peter Krefting wrote:

> Using "git branch --no-merged" I can get a list of branches that I  
> have that I haven't merged into my current branch. "git tag" doesn't  
> have such an option, is there a way to achieve something similar  
> listing tags that point to commits that aren't in my history?

I think something like this might do what you want:

git for-each-ref --format='%(refname)' refs/tags | \
while read t; do
   if ! git merge-base --is-ancestor $t HEAD; then
     echo ${t#refs/tags/}
   fi
done

If you run that on the Git repository (assuming you've checked out master), after a while (there are a lot of tags to check) it spits out v1.4.4.5 (along with some complaints about *-gpg-pub tags that refer to blobs).

And sure enough, `git log v1.4.4.5 ^master` shows 5 commits not contained in master so I think it does what you want. You'll want to restrict the for-each-ref output further, if possible, to make it quicker.

-Kyle