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loader.js
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/*
* Jake JavaScript build tool
* Copyright 2112 Matthew Eernisse ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
var path = require('path')
, fs = require('fs')
, existsSync = typeof fs.existsSync == 'function' ?
fs.existsSync : path.existsSync
, fileUtils = require('./utils/file')
, Loader;
Loader = function () {
var JAKEFILE_PAT = /\.jake(\.js|\.coffee)?$/;
var _loadJakefile = function (file) {
var jakefile = file ?
file.replace(/\.js$/, '').replace(/\.coffee$/, '') : 'Jakefile'
, fileSpecified = !!file
// Dear God, why?
, isCoffee = false
// Warning, recursive
, exists;
exists = function () {
var cwd = process.cwd();
if (existsSync(jakefile) || existsSync(jakefile + '.js') ||
existsSync(jakefile + '.coffee')) {
return true;
}
if (!fileSpecified) {
process.chdir("..");
if (cwd === process.cwd()) {
return false;
}
return exists();
}
};
if (!exists()) {
fail('No Jakefile. Specify a valid path with -f/--jakefile, or place one in the current directory.');
}
isCoffee = existsSync(jakefile + '.coffee');
if (isCoffee) {
CoffeeScript = _requireCoffee();
}
require(fileUtils.absolutize(jakefile));
}
, _loadJakeLibdir = function (d) {
var dirname = d || 'jakelib'
, dirlist;
dirname = fileUtils.absolutize(dirname);
if (existsSync(dirname)) {
dirlist = fs.readdirSync(dirname);
dirlist.forEach(function (filePath) {
if (JAKEFILE_PAT.test(filePath)) {
if (/\.coffee$/.test(filePath)) {
CoffeeScript = _requireCoffee();
}
require(path.join(dirname, filePath));
}
});
}
}
, _requireCoffee = function() {
try {
return require('coffee-script');
}
catch (e) {
fail('CoffeeScript is missing! Try `npm install coffee-script`');
}
};
this.load = function (opts) {
_loadJakefile(opts.jakefile);
_loadJakeLibdir(opts.jakelibdir);
};
};
module.exports.Loader = Loader;