[git] Find out a Git branch creator

I want to find out who created a branch.

I am sort of able to do so with:

git branch -a | xargs -L 1 bash -c 'echo "$1 `git log --pretty=format:"%H %an" $1^..$1`"' _

However, this returns the last committer per branch, not necessarily the person who created the branch.

I tweaked the previous answers by using the --sort flag and added some color/formatting:

git for-each-ref --format='%(color:cyan)%(authordate:format:%m/%d/%Y %I:%M %p)    %(align:25,left)%(color:yellow)%(authorname)%(end) %(color:reset)%(refname:strip=3)' --sort=authordate refs/remotes

I know this is not entirely the scope of the question, but if you find the need to filter only commits by a specific author, you can always pipe to grep :)

# lists all commits in chronological order that
# belong to the github account with
# username `MY_GITHUB_USERNAME` (obviously you
# would want to replace that with your github username,
# or the username you are trying to filter by)


git for-each-ref --format='%(committerdate) %09 %(authorname) %09 %(refname)' | sort -committerdate | grep 'MY_GITHUB_USERNAME'

happy coding! :)

git for-each-ref --format='%(authorname) %09 -%(refname)' | sort

for those looking for a DESC ... this seems to work --sort=-

ty for the formatting, new to this ...my eyes are loosing some of it's bloodshot

git for-each-ref --format='%(color:cyan)%(authordate:format:%m/%d/%Y %I:%M %p)    %(align:25,left)%(color:yellow)%(authorname)%(end) %(color:reset)%(refname:strip=3)' --sort=-authordate refs/remotes

further ref: https://stackoverflow.com/a/5188364/10643471

You can find out who created a branch in your local repository by

git reflog --format=full

Example output:

commit e1dd940
Reflog: HEAD@{0} (a <a@none>)
Reflog message: checkout: moving from master to b2
Author: b <b.none>
Commit: b <b.none>
(...)

But this is probably useless as typically on your local repository only you create branches.

The information is stored at ./.git/logs/refs/heads/branch. Example content:

0000000000000000000000000000000000000000 e1dd9409c4ba60c28ad9e7e8a4b4c5ed783ba69b a <a@none> 1438788420 +0200   branch: Created from HEAD

The last commit in this example was from user "b" while the branch "b2" was created by user "a". If you change your username you can verify that git reflog takes the information from the log and does not use the local user.

I don't know about any possibility to transmit that local log information to a central repository.

Adding to DarVar's answer:

git for-each-ref --format='%(committerdate) %09 %(authorname) %09 %(refname)' | sort -k5n -k2M -k3n -k4n | awk '{print $7 $8}'

P.S.: We used AWK to pretty print the author and the remote branch.

Assuming:

1. branch was made from master
2. hasn't been merged to master yet

 git log --format="%ae %an" master..<HERE_COMES_THE_BRANCH_NAME> | tail -1

List remote Git branches by author sorted by committer date:

git for-each-ref --format='%(committerdate) %09 %(authorname) %09 %(refname)' --sort=committerdate

We can find out based upon authorname

git for-each-ref --format='%(authorname) %09 %(if)%(HEAD)%(then)*%(else)%(refname:short)%(end) %09 %(creatordate)' refs/remotes/ --sort=authorname DESC

As far as I know, you may see if you are the creator of a branch only. This is indicated by the first row in .git/ref/heads/<branch>. If it ends with "Created from HEAD" you are the creator.