sprockets.test.js

'use strict';

var assert = require('assert');
var fs = require('fs');
var path = require('path');
var shell = require('shelljs');

var DIR_ETSYWEB = path.join(process.env.HOME, 'development', 'Etsyweb');

var find_sprockets = require(path.join(__dirname, '../../lib/dependency/find_sprockets.js'));

var r_ack = shell.exec(
    'cd ' + DIR_ETSYWEB + ' && grep "\/\/= require" -r htdocs/assets/js | cut -d ":" -f1 | sort -u',
    {silent: true}
);
var arr_ack = r_ack.output.trim().split('\n');
arr_ack.sort();

var arr_lib = [];
var r_lib = shell.find(path.join(DIR_ETSYWEB, 'htdocs', 'assets', 'js'));
r_lib.forEach(function (fullpath) {
    if ('.js' !== path.extname(fullpath)) {
        return;
    }
    var contents = fs.readFileSync(fullpath, {encoding: 'utf8'});
    var arr = find_sprockets(contents);
    if (0 < arr.length) {
        arr_lib.push(path.relative(DIR_ETSYWEB, fullpath));
    }
});
arr_lib.sort();

//console.log(arr_lib.sort());
var is_different = false;
try {
    assert.deepEqual(arr_ack, arr_lib);
}
catch (er) {
    console.error(er);
    is_different = true;
}

if (false === is_different) {
    console.error('the inputs are the same!');
    process.exit();
}


var long, short, long_name;
if (arr_ack.length > arr_lib.length) {
    long = arr_ack;
    short = arr_lib;
    long_name = 'arr_ack';
}
else {
    long = arr_lib;
    short = arr_ack;
    long_name = 'arr_lib';
}

var common = [];
var only_short = [];
var rev_short = JSON.parse(JSON.stringify(short)).reverse();
var len_short = rev_short.length;
for (var i = 0; i < len_short; ++i) {
    var key = rev_short[i];
    var idx_long = long.indexOf(key);
    if (-1 < idx_long) {
        common.push(key);
        long.splice(idx_long, 1);
        short.splice((len_short - 1 - i), 1);
    }
    else {
        only_short.push(key);
        short.splice((len_short - 1 - i), 1);
    }
}
console.log(JSON.stringify(
    {
        common: common,
        only_short: only_short,
        only_long: long,
        long_is: long_name
    },
    '\n', 2
));