109 lines
3.3 KiB
JavaScript
109 lines
3.3 KiB
JavaScript
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var util = require('util');
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var minimatch = require('minimatch');
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var glob = require('glob');
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var Glob = glob.Glob;
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var EventEmitter = require('events').EventEmitter;
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module.exports = fileset;
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// Async API
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function fileset(include, exclude, options, cb) {
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if (typeof exclude === 'function') cb = exclude, exclude = '';
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else if (typeof options === 'function') cb = options, options = {};
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var includes = (typeof include === 'string') ? include.split(' ') : include;
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var excludes = (typeof exclude === 'string') ? exclude.split(' ') : exclude;
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var em = new EventEmitter;
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var remaining = includes.length;
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var results = [];
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if (!includes.length) return cb(new Error('Must provide an include pattern'));
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em.includes = includes.map(function(pattern) {
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return new fileset.Fileset(pattern, options)
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.on('error', cb ? cb : em.emit.bind(em, 'error'))
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.on('match', em.emit.bind(em, 'match'))
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.on('match', em.emit.bind(em, 'include'))
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.on('end', next.bind({}, pattern))
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});
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function next(pattern, matches) {
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results = results.concat(matches);
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if (!(--remaining)) {
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results = results.filter(function(file) {
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return !excludes.filter(function(glob) {
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var match = minimatch(file, glob, { matchBase: true });
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if(match) em.emit('exclude', file);
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return match;
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}).length;
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});
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if(cb) cb(null, results);
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em.emit('end', results);
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}
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}
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return em;
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}
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// Sync API
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fileset.sync = function filesetSync(include, exclude) {
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if (!exclude) exclude = '';
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// includes / excludes, either an array or string separated by comma or whitespace
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var includes = (typeof include === 'string') ? include.split(/[\s,]/g) : include;
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var excludes = (typeof exclude === 'string') ? exclude.split(/[\s,]/g) : exclude;
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// Filter out any false positive '' empty strings
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includes = includes.filter(function(pattern) { return pattern; });
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excludes = excludes.filter(function(pattern) { return pattern; });
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// - todo: pass in glob options as last param
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var options = { matchBase: true };
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// always ignore node_modules for sync api
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options.ignore = ['node_modules/**/*'];
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// First, glob match on all include patters into a single array
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var results = includes.map(function(include) {
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return glob.sync(include, options);
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}).reduce(function(a, b) {
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return a.concat(b);
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}, []);
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// Then filters out on any exclude match
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var ignored = excludes.map(function(exclude) {
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return glob.sync(exclude, options);
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}).reduce(function(a, b) {
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return a.concat(b);
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}, []);
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// And filter any exclude match
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results = results.filter(function(file) {
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return !ignored.filter(function(glob) {
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return minimatch(file, glob, { matchBase: true });
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}).length;
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});
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return results;
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};
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fileset.Fileset = function Fileset(pattern, options, cb) {
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if (typeof options === 'function') cb = options, options = {};
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if (!options) options = {};
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// ignore node_modules by default, unless specified
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options.ignore = options.ignore || ['node_modules/**/*'];
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Glob.call(this, pattern, options);
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if (typeof cb === 'function') {
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this.on('error', cb);
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this.on('end', function(matches) { cb(null, matches); });
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}
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};
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util.inherits(fileset.Fileset, Glob);
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