verify-syntax

#!/usr/bin/env bash

if [ $1 == '--help' ];then
    cat <<EOF
Verify the syntax of js files

    USAGE:

        $0 path/to/file1.js path/to/file2.js path/to/file3.js etc...
        $0 path/to/*.js
        $0 path/to/dir
        $0 --deep path/to/dir
        $0 --dry-run path/to/whatever
EOF
    exit 1
fi


if [ $1 == '--dry-run' ]; then
    DRYRUN=1
    shift
fi
if [ $1 == '--combine' ]; then
    COMBINE=1
    shift
fi
if [ $1 == '--deep' ]; then
    DEEP=1
    shift
fi


CMD="/usr/bin/env closure"
CMD="$CMD --js_output_file /dev/null"
CMD="$CMD --third_party"
CMD="$CMD --warning_level VERBOSE"
# CMD="$CMD --jscomp_off nonStandardJsDocs"
CMD="$CMD --jscomp_dev_mode EVERY_PASS"



function parseFiles () {
    for fileName in $*; do
        # echo $fileName
        if [ -d "$fileName" ]; then
            if [ $DEEP ];then
                parseFiles $(find "$fileName" -name *.js)
            else
                parseFiles "$fileName"/*.js
            fi
        else
            parseFile "$fileName"
        fi
    done
}

JS=""

function parseFile () {
    if [ $COMBINE ];then
        JS="--js $1 $JS"
    else
        cmd="$CMD --js $1"
        echo $cmd
        if [ ! $DRYRUN ];then
            `$cmd`
        fi
    fi
}


parseFiles $*


if [ $COMBINE ];then
    cmd="$CMD $JS"
    echo $cmd
    if [ ! $DRYRUN ];then
        `$cmd`
    fi
fi


exit $?