Nick Groenen

Dotfiles showcase: Git

Published by Nick Groenen.

This post is part of an ongoing series on dotfiles. In today’s episode we look at dotfiles for Git.


The first item I’d like to call attention to is a little known option called “reuse recorded resolution”, or rerere for short. It’s a feature which allows Git to remember how you resolved a particular merge conflict, letting it replay and reuse that resolution if it encounters the same conflict again. This is especially useful to keep re-integration merges from littering up your history in a feature branch.

The official Git blog has a good post on how and when to use rerere. The easiest way to enable it by setting rerere.enabled globally.


I’ve also got a few handy git aliases defined. While you can find the full config here, the following ones I believe to be worthy of special attention:


# Show commits in upstream which aren't yet merged in
# your local branch
behind = log --graph --pretty=format:'%C(yellow)%h%Creset %C(yellow)%d%Creset %s %C(bold blue)(%an, %cr)%Creset' --abbrev-commit --date=relative ..@{u}

# And the opposite, commits in local branch which aren't
# yet pushed upstream
ahead = log --graph --pretty=format:'%C(yellow)%h%Creset %C(yellow)%d%Creset %s %C(bold blue)(%an, %cr)%Creset' --abbrev-commit --date=relative @{u}..

# See what new commits have been created by the last command.
# Mainly useful to see commits pulled in by a git pull or merge
# of another branch.
new = "!sh -c 'git log --graph --pretty=format:\"%C(yellow)%h%Creset %C(yellow)%d%Creset %s %C(bold blue)(%an, %cr)%Creset\" --abbrev-commit --date=relative $1@{1}..$1@{0} \"$@\"'"