clean branches from current git directory

clean_branches.sh

#!/bin/bash

# Loren - 2/12/16
# you can provide some grep regex as the first arg if you want to delete only
# specific branches

if [ $1 ]
then
  branches="git branch | sed 's/^\*//' | grep $1"
else
  branches="git branch | sed 's/^\*//'"
fi

for branch in $(eval $branches)
do

  have_user_input=0
  should_delete=0

  while ! (( $have_user_input ))
  do

    echo Delete branch $branch? [ynq]
    read answer

    if [ "$answer" == "y" ] || [ "$answer" == "yes" ]
    then
      should_delete=1
      have_user_input=1
    elif [ "$answer" == "n" ] || [ "$answer" == "no" ]
    then
      should_delete=0
      have_user_input=1
    elif [ "$answer" == "q" ] || [ "$answer" == "quit" ] || [ "$answer" == "exit" ]
    then
      echo Exiting
      exit
    else
      echo 'Invalid input, enter y or n or q'
    fi
  done

  if [ $should_delete -eq 1 ]
  then
    git branch -D $branch
  else
    echo Not deleting branch $branch.
  fi
done