git-branch-cleanup.sh

if [ "$1" == "" ]; then
    TRUNK="integration"
else
    TRUNK=$1
fi

if [ "$2" == "" ]; then
    REMOTE_PREFIX="bb/"
else
    REMOTE_PREFIX=$2
fi

if git checkout $TRUNK > /dev/null 2>&1; then
    echo "Successfully checked out $TRUNK !"
else
    echo "Cannot checkout $TRUNK - check branch name and try again."
    exit 1
fi

# Update our list of remotes
echo "Updating remotes and pruning origin..."
git remote update > /dev/null 2>&1

git fsck --unreachable
echo "These commits are unreachable and will be deleted if we continue with the cleanup."
read -p "Press [enter] to continue or Cntrl-C to bail out"

git remote prune origin > /dev/null 2>&1
git gc

# Remove local fully merged branches
echo "Cleaning up local branches:"
if git branch --merged $TRUNK | grep -v $TRUNK | grep -v 'master'; then
    read -p "Delete local branches (y/n)? "
    if [ "$REPLY" == "y" ]
    then
        git branch --merged $TRUNK | grep -v $TRUNK | grep -v 'master' | xargs git branch -d
    fi
else
    echo "No local branches to clean up!"
fi

# Show remote fully merged branches
if git branch -r --merged $TRUNK | grep $REMOTE_PREFIX | sed 's/ *origin\///' | grep -v $TRUNK | grep -v 'master' > /dev/null 2>&1; then
    echo "The following remote branches are fully merged and will be removed:"
    git branch -r --merged $TRUNK | grep $REMOTE_PREFIX | sed 's/ *origin\///' | grep -v $TRUNK | grep -v 'master'
    read -p "Continue (y/n)? "
    if [ "$REPLY" == "y" ]
    then
        # Remove remote fully merged branches
        git branch -r --merged $TRUNK | grep $REMOTE_PREFIX | sed 's/ *origin\///' | grep -v $TRUNK \
                    | grep -v 'master' | xargs -I% git push origin :%
        echo "Done!"
    fi
else
    echo "No remote branches to clean up!"
fi