pre-commit

#!/bin/sh
#
# An example hook script to verify what is about to be committed.
# Called by "git commit" with no arguments.  The hook should
# exit with non-zero status after issuing an appropriate message if
# it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-commit".

if git rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Initial commit: diff against an empty tree object
	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

SYNTAX_ERROR_COUNT=0
LOG_JS_COUNT=0

for FILE in `git diff-index --name-only ${against} | grep "\.js$"`; do

    loggy_stuff=`grep -inR "console\.\|alert(" ${FILE}`

    # get the length of the matched string, C style
    log_stuff_length=`echo ${#loggy_stuff}`

    log_stuff_lines=`echo ${loggy_stuff} | wc -l`

    # man test for number comparision -ne => != , -a => &&

    if [ ${log_stuff_length} -ne 0 -a ${log_stuff_lines} -ne 0 ]; then
        LOG_JS_COUNT=`expr $LOG_JS_COUNT + 1`
    fi

    lint=`node_modules/standard/bin/cmd.js ${FILE}`

    if [ ${#lint} -ne 0 ]; then
        # log the lint errors formatted
        echo "$lint"
        SYNTAX_ERROR_COUNT=`expr $SYNTAX_ERROR_COUNT + 1`
    fi

done

echo "\n"

if [ ${SYNTAX_ERROR_COUNT} -ne 0 ]; then
  echo "$SYNTAX_ERROR_COUNT js style and syntax errors."
fi

echo "\n"

if [ ${LOG_JS_COUNT} -ne 0 ]; then
  echo "$LOG_JS_COUNT instances of console.log() or alert() found."
fi

# If any error count isn't zero - something broke >:(

if [ ${LOG_JS_COUNT} -ne 0 -o ${SYNTAX_ERROR_COUNT} -ne 0 ]; then
  exit 1;
fi

exit 0;