Warn on .spp files

pre-commit

#!/bin/sh

LIST=$(git diff --name-only --diff-filter=AM HEAD)
for file in $LIST
do
 if [ "$file" == '#' ]; then
  continue
 fi

 EXTENSION=$(echo "$file" | grep ".spp$")
 if [ "$EXTENSION" != "" ]; then
  echo "An error occured!"
  echo 
  echo "You try to commit an .spp file."
  echo "Please upload the .spp files to the NAS."
  echo 
  echo "Can't commit, fix errors first."
  echo 
  exit 1
 fi
done
echo "Commited successfully."