Closure Compiler Git pre-commit Hook

gistfile1.sh

#!/bin/sh                                                                       
# Minify js files                                                               

COMPILER="java -jar compiler.jar"

OPTIONS="--compilation_level=ADVANCED_OPTIMIZATIONS"

SRC=lib
DEST=dist


function _minify {
        local file=$1
        local path=${file##*/}
        local out="$DEST/${path%.js}.min.js"
        echo "Compiling '$file' to '$out'"
        $COMPILER $OPTIONS --js=$file --js_output_file=$out
        echo "gzip size: $(gzip -c $out | wc -c) bytes"
        git add $out
}

for file in $(git diff --cached --name-only --diff-filter=ACM)
do
    if  [[ $file =~ $SRC/.+\.js ]];
    then
        _minify $file
    fi
done