Recursive foreach, expects to find a tree of git projects

foreachr.sh

#!/bin/bash

# From ScalaCourses.com Introduction to Play Framework with Scala course

# Execute a command in all git directories below current directory or specified directory
# Skips directories that contain a file called .ignore
#
# Usage:
#   foreach . git pull
#   foreach . git grep "word or phrase"
#
# Using printf insteach of echo -e for Mac OS
# See http://stackoverflow.com/questions/4435853/echo-outputs-e-parameter-in-bash-scripts-how-can-i-prevent-this

HIGHLIGHT="\e[01;34m"
NORMAL='\e[00m'

function help {
  if [ "$1" ]; then echo "$1"; fi
  echo "Usage: $(basename $0) dirName command..."
  exit -1
}

if [ -z "$1" ]; then help "No directory specified"; fi

DIR="$1"
shift
CMD="$@"

if [ -z "$CMD" ]; then help "No command(s) specified"; fi

function doit {
  local d="$1"
  if [ -d "$d" ]; then
    #echo "Looking for $d/.ignore"
    if [ -e "$d/.ignore" ]; then
      printf "%b\n" "\n${HIGHLIGHT}Ignoring $d${NORMAL}"
    else
      cd "$d" > /dev/null
      if [ -d ".git" ]; then
        printf "%b\n" "\n${HIGHLIGHT}`pwd`$NORMAL"
        $CMD
      elif [ ! -d .svn ] && [ ! -d CVS ]; then
        scan *
      fi
      cd .. > /dev/null
    fi
  fi
  #echo "Exiting doit: pwd=`pwd`"
}

function scan {
  #echo "`pwd`"
  #echo "About to scan $*"
  for x in $*; do
    doit "$x"
  done
}

cd "$1" > /dev/null
printf "%b\n" "${HIGHLIGHT}Scanning ${PWD}${NORMAL}"
scan *