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/*
Copyright (c) 2012, Yahoo! Inc. All rights reserved.
Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
*/
var async = require('async'),
fileset = require('fileset'),
fs = require('fs'),
path = require('path'),
seq = 0;
function filesFor(options, callback) {
if (!callback && typeof options === 'function') {
callback = options;
options = null;
}
options = options || {};
var root = options.root,
includes = options.includes,
excludes = options.excludes,
realpath = options.realpath,
relative = options.relative,
opts;
root = root || process.cwd();
includes = includes && Array.isArray(includes) ? includes : [ '**/*.js' ];
excludes = excludes && Array.isArray(excludes) ? excludes : [ '**/node_modules/**' ];
opts = { cwd: root, nodir: true };
seq += 1;
opts['x' + seq + new Date().getTime()] = true; //cache buster for minimatch cache bug
fileset(includes.join(' '), excludes.join(' '), opts, function (err, files) {
if (err) { return callback(err); }
if (relative) { return callback(err, files); }
if (!realpath) {
files = files.map(function (file) { return path.resolve(root, file); });
return callback(err, files);
}
var realPathCache = module.constructor._realpathCache || {};
async.map(files, function (file, done) {
fs.realpath(path.resolve(root, file), realPathCache, done);
}, callback);
});
}
function matcherFor(options, callback) {
if (!callback && typeof options === 'function') {
callback = options;
options = null;
}
options = options || {};
options.relative = false; //force absolute paths
options.realpath = true; //force real paths (to match Node.js module paths)
filesFor(options, function (err, files) {
var fileMap = {},
matchFn;
if (err) { return callback(err); }
files.forEach(function (file) { fileMap[file] = true; });
matchFn = function (file) { return fileMap[file]; };
matchFn.files = Object.keys(fileMap);
return callback(null, matchFn);
});
}
module.exports = {
filesFor: filesFor,
matcherFor: matcherFor
};
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