List all developers on a project in Git

If you want to be more specific in the list (find a list of unique committer and author), you could use git log:

git log --pretty="%an %ae%n%cn %ce" | sort -u

• %an author name
• %ae author email
• %n new line
• %cn committer name
• %ce committer email

Other placeholders are described in the pretty print documentation of git log.

You can try this:

git log | grep Author: | sort -u

(users that have done commits)

Note: by default git shortlog groups commits by authors.

If you need to group them by committers, you will need Git 2.12 (Q1 2017)

git shortlog -snc

See commit 03f4082 (16 Dec 2016) by Jeff King (peff).
See commit fbfda15 (11 Oct 2016) by Linus Torvalds (torvalds).
^{(Merged by Junio C Hamano -- gitster -- in commit ad1b4e2, 27 Dec 2016)}

Linus Torvalds himself introduces this feature:

shortlog: group by committer information

In some situations you may want to group the commits not by author, but by committer instead.

For example, when I just wanted to look up what I'm still missing from linux-next in the current merge window, I don't care so much about who wrote a patch, as what git tree it came from, which generally boils down to "who committed it".

So make git shortlog take a "-c" or "--committer" option to switch grouping to that.

Another option can be:

git log --format='%aN' | sort -u

Great answers by @pedro-nascimento, by @mic_e and others already solve the problem.

In addition, you can add the following line to your .gitconfig

contributors = shortlog -e --summary --numbered

or in shell type

git config --global alias.contributors 'shortlog -e --summary --numbered'

And after that you can simply invoke: git contributors

Another option is using the mergestat CLI, which is a tool that allows you to run SQL queries on git history. So a query like:

SELECT
  author_name,
  author_email count(*),
  count(*)
FROM commits
GROUP BY author_name, author_email
ORDER BY count(*) DESC

Will output a list of all commit authors in a repo, ordered by number of commits. Since it's just SQL, you can add filtering for commit timestamps, or sort by LOC added/removed, etc.

Full disclosure, I'm the maintainer/creator of the project, but wanted to share because I believe it could be useful for this type of use case.

There's also the summary command which prints out git stats by author in a repo.

List authors (from all branches) and their emails by last commit date for checking which authors are still active in the project:

git log --all --pretty="%ae,%an,%ad" | sort -u -t, -k1,1

I am using GHI to open issues and where I can assign issues to specific users as long as I know their usernames

I don't if this is going to be helpful for someone but I am just going to leave the solution that worked for me here:

To get only the authors username from the GitHub I ran

git shortlog -sne | grep +  | sed -e "s/.*+//; s/@.*//"

which will only list the username of the authors on the current project.

Then i can pick an username and assign an issue to him/her.

FOR ANYONE WHO WANTS TO OPEN ISSUES AND/OR ASSIGN TO SOMEONE FROM CMD/TERMINAL, HERE THE DOCUMENTATION OF THE GHI https://github.com/stephencelis/ghi

If you have git-extras installed you can use one of its helpful (and easy to remember) commands, such as git authors or git count.

A list of authors, including email addresses, ordered by commit count:

git authors --list

A list of authors and the number of their contributions i.e. commits:

git count --all

The commands are shell scripts that use Git commands themselves. You can inspect the source code on GitHub, e.g.

git-authors is implemented as:

git shortlog HEAD -sne | awk '{$1=""; sub(" ", ""); print}' | awk -F'<' '!x[$1]++' | awk -F'<' '!x[$2]++'

git-count is implemented as:

git shortlog -n -s | awk '{print substr($0,index($0,$2)) " (" $1 ")"}'

In my case, I want a) list all contributors mentioned in Co-authored-by: and b) add a link to the avatar of all contributors coming from squash merged pull requests.

For that, I wrote GitHub Contributors List.

jbang https://github.com/koppor/github-contributors-list/blob/HEAD/gcl.java --owner=<owner> --repo=<repository> --startrevision=<startCommitRevStr> --endrevision=<endCommitRevStr> <repositoryPath>

The resulting rendered Markdown table looks as follows:

See https://github.com/JabRef/blog.jabref.org/blob/main/_posts/2024-04-03-JabRef5-13.md for the full example.