Delete all Greenkeeper branches

delete_all_greenkeeper_branches.sh

#!/bin/bash

# Description:
#     Delete all `greenkeeper/*` branches of your remote.
# Instructions:
#     Run the script with the `--help` flag.

ORIGIN=origin
DRY_RUN=0
THIS=`basename "$0"`

while test $# -gt 0; do
    case "$1" in
        -d|--dry-run)
            shift
            DRY_RUN=1
            shift
            ;;
        -h|--help)
            shift
            echo "$THIS [REMOTE] [--dry-run]"
            echo "REMOTE    (optional) - the git remote, defaults to 'origin'"
            echo "--dry-run (optional) - shows what branches that will be deleted,"
            echo "                       without actually deleting them"
            echo "--help    (optional) - this help message"
            exit 1
            ;;
        *)
        ORIGIN=${1:-origin}
        shift
        ;;
    esac
  done  

if [[ $DRY_RUN -eq 1 ]]; then
  git ls-remote --heads $ORIGIN  | sed 's?.*refs/heads/??' | grep "^greenkeeper/"
else
  git ls-remote --heads $ORIGIN  | sed 's?.*refs/heads/??' | grep "^greenkeeper/" | xargs -n 1 git push --delete $ORIGIN
fi

I recommend people stumbling across this to run the command without the last xargs pipe first, just to get a glance of which branches would potentially be affected (there is no easy way to reverse this as far as I'm concerned). For somebody with 300+ branches to clean up in order to remove and replace greenkeeper, this is a real life-saver. Thanks 👍

@steffenz I updated the script with a --dry-run option

Wow - that's awesome 😄 Wasn't expecting a fix at all, but it is definitely highly appreciated. Thanks for sharing, and making it even better 🎉 You saved me a lot of time!

FYI, I have a GitHub action for it: https://github.com/cometkim/cleankeeper

👍 Nice :)