git-since

#!/bin/bash

# Show changes that are only on the current branch.
# Useful when working on a feature branch
#
# USAGE:
#   git since [COMMAND] [PARENT-BRANCH]
#
#   COMMAND defaults to log
#
# EXAMPLE:
#   git since
#   git since diff
#   git since log master

command=${1:-log}
me=$(git rev-parse --abbrev-ref HEAD)
parent=$2
if [[ -z "$parent" ]]; then
	base=$(git rev-parse $(git rev-list --topo-order --all --not $(git rev-list --all ^$me) | tail -n1)^)
else
	base=$(git merge-base $me $parent)
fi
shift
git $command $@ $base..HEAD