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8ff885a3a8
Closes #17 Implements the IsGenerated helper function to filter out generated files using the rules and matchers in: - https://github.com/github/linguist/blob/master/lib/linguist/generated.rb Since the vast majority of matchers have very different logic, it cannot be autogenerated directly from linguist like other logics in enry, so it's translated by hand. There are three different types of matchers in this implementation: - By extension, which mark as generated based only in the extension. These are the fastest matchers, so they're done first. - By file name, which matches patterns against the filename. These are performed in second place. Unlike linguist, we try to use string functions instead of regexps as much as possible. - Finally, the rest of the matchers, which go into the content and try to identify if they're generated or not based on the content. Unlike linguist, we try to only read the content we need and not split it all unless it's necessary and use byte functions instead of regexps as much as possible. Signed-off-by: Miguel Molina <miguel@erizocosmi.co>
93 lines
2.3 KiB
JavaScript
93 lines
2.3 KiB
JavaScript
(function(root, factory) {
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if (typeof define === 'function' && define.amd) {
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define(['lodash'], factory);
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} else if (typeof exports !== 'undefined') {
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module.exports = factory(require('lodash'));
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} else {
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root.Namespace = factory(root._);
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}
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})(this, function(_) {
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'use strict';
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/**
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* @module namespace
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* @class namespace
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*/
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function Namespace() {}
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/**
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* Regex for splitting keypaths into arrays.
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*
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* @private
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* @const {RegExp}
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* @type
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*/
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var KEYPATH_SPLITTER = /\./g;
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/**
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* An internal cache to avoid calculating a keypath more than once.
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*
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* @private
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* @type {Object}
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*/
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var _keypaths = {};
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_.extend(Namespace.prototype, {
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/**
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* Adds a definition to the namespace object.
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*
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* @public
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* @instance
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* @method add
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* @param {String} keypath - The keypath for the definition to be added at.
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* @param {Function|Object} definition - The definition to be added.
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* @return {Function|Object} - The definition.
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*/
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add: function(keypath, definition) {
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return this._walk(keypath, function(memo, name, index, keypath) {
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if (index + 1 === keypath.length) {
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memo[name] = _.extend(definition, memo[name]);
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}
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return memo[name] || (memo[name] = {});
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});
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},
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/**
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* Retrieves a definition from the namespace safely.
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*
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* @public
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* @instance
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* @method get
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* @param {String} keypath - The keypath to lookup a definition for.
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* @returns {Function|Object|undefined} - The definition if it exists, otherwise `undefined`.
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*/
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get: function(keypath) {
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return this._walk(keypath);
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},
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/**
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* An internal function for walking a keypath.
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*
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* @private
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* @instance
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* @method _walk
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* @param {String} keypath - The keypath to walk through.
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* @param {Function} [callback] - An optional callback to be called at each item in the path.
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* @returns {function|Object|undefined} - The reduced keypath.
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*/
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_walk: function(keypath, callback) {
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return _.reduce(
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_keypaths[keypath] || (_keypaths[keypath] = keypath.split(KEYPATH_SPLITTER)),
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callback || function(memo, name) {
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return memo && memo[name];
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},
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this
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);
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}
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});
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return Namespace;
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});
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//# sourceMappingURL=namespace.js.map
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