Pre-commit hook (check for forgotten `only`, run client tests only on client code changes)

gistfile1.sh

#!/bin/sh
SRC=$(git rev-parse --show-toplevel)/src/client
#==========================================================
# Check if I forgot to remove 'only' keyword from tests.
# To make sure that before commit run all tests
only=`grep -c -h -r --include "*.spec.js" -E "(describe|it)\.only" $SRC/src  | awk -F ':' '{x +=$0}; END {print x}'`

if (( $((only)) > 0 ))
then
  echo 'Remove ONLY from tests.'
  # Output list of found only entries
  grep -r -n --include "*.spec.js" -E "(describe|it)\.only" $SRC/src
  exit 1
fi

#==========================================================

ch=`git diff --cached --name-only --diff-filter=ACM | grep 'src/client' -c`

if (( $((ch)) > 0 ))
then
  echo "client"
  gulp pre-commit --stdio inherit --cwd $SRC
else
  echo "Server only. No pre-commit hook"
fi