jsnormalize

#!/usr/bin/env bash

CC_DIR="$OPAGENERAL/tools/jschecker"
CC="$CC_DIR/compiler.jar"

CC_OPT='--formatting PRETTY_PRINT'

COMPILATION_LEVEL='WHITESPACE_ONLY'
SIMPLE_OPTIMIZATIONS='SIMPLE_OPTIMIZATIONS'
ADVANCED_OPTIMIZATIONS='ADVANCED_OPTIMIZATIONS'

FILES=''

EXTERNALS="$CC_DIR/externals.js"
WITH_EXTERNALS=false
TARGET='/dev/stdout'

help() {
    cat <<EOF
$0: normalize and beautify js files.

This script is meant to be runned from anywhere on js files.
It is just a wrapper to the google closure compiler:

google closure compiler
  http://code.google.com/closure/compiler/

Use:
  $0 [options] js-files*

Options:
  --help|-help|help         print this help message
  -e                        include standard externals distributed with the checker
  -c                        turn on simple optimizations
  -cc                       turn on advanced optimizations
  -o *                      produce resulting js in a file rather than stdout
  -- *                      give all remaining options to the google closure compiler
EOF
}

while [ "$#" -gt 0 ]; do
    case "$1" in

        # h
        --help|-help|help)
            help
            exit 0
            ;;

        -e)
            WITH_EXTERNALS=true
            ;;

        -c)
            COMPILATION_LEVEL=$SIMPLE_OPTIMIZATIONS
            ;;

        -cc)
            COMPILATION_LEVEL=$ADVANCED_OPTIMIZATIONS
            ;;

        -o)
            if [ -z "$2" ]; then echo "Error: option $1 requires an argument"; exit 1; fi
            shift
            TARGET="$1"
            ;;

        --)
            shift
            CC_OPT="$CC_OPT $@"
            break
            ;;

        *)
            FILES="$FILES $1"
            ;;

   esac
    shift
done

CC_OPT="$CC_OPT --compilation_level $COMPILATION_LEVEL --js_output_file $TARGET"

if [ "$WITH_EXTERNALS" = true ] ; then
    CC_OPT="$CC_OPT --externs $EXTERNALS"
fi

if [ ! -f "$CC" ] ; then
    cat <<EOF
Cannot find the closure compiler.
OPAGENERAL is set to : '$OPAGENERAL'
searched at:
 OPAGENERAL/tools/jschecker/compiler.jar
EOF
    exit 1
fi

JS_FILES=''
for file in $FILES ; do
    JS_FILES="$JS_FILES --js $file"
done

command="java -jar $CC $CC_OPT $JS_FILES"
echo "$command"
$command