git pre-commit hook to syntax-check files

pre-commit

git diff --cached --name-status | while read st file; do
  # skip deleted files
  if [ "$st" == 'D' ]; then continue; fi
     # do a check only on the puppet files
  if [[ "$file" =~ ".pp" ]]· 
  then
    echo "syntax checking \"$file\""·
    if  ! puppet --confdir=/tmp --vardir=/tmp --parseonly --ignoreimport "$file"
    then
      echo "puppet syntax check failed for file: $file"
      exit 1
   fi  
 fi
done