Puppet parser/lint git pre-commit hook script. Improves on versions I've seen around the net

Puppet Parser and Lint git pre-commit hook script

#!/bin/bash
declare -a files
IFS=$'\n'

# Check for puppet lint
if requires=$(which puppet puppet-lint git 2>&1) ;then
   : #We have puppet-lint and git, good
else
   echo -e "Error, missing required item(s) from path.\n Requires: git puppet-lint\n\nFound:\n${requires}"
   exit 1
fi

files=$(git diff --cached --name-only --diff-filter=ACM )

for file in ${files[@]} ;do
  if [[ ${file} =~ \.*.pp$ ]] ;then
    if puppet parser validate ${file} ;then
       :
    else
       echo "puppet-lint failed on ${file}, exiting, not commiting to git"
       exit 1
    fi
    if puppet-lint "${file}" ;then
       echo "${file} had no ERRORS, Check for warnings..... Auto continuing in 5 seconds, ctrl-c to abort"
       sleep 5
    else
       echo "puppet-lint failed, exiting, not commiting"
       exit 1
    fi
  fi
done

exit 0