Current Dev State

static/js/ketcher2/node_modules/glob-stream/index.js

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+/*jslint node: true */
+
+'use strict';
+
+var through2 = require('through2');
+var Combine = require('ordered-read-streams');
+var unique = require('unique-stream');
+
+var glob = require('glob');
+var minimatch = require('minimatch');
+var glob2base = require('glob2base');
+var path = require('path');
+
+var gs = {
+  // creates a stream for a single glob or filter
+  createStream: function(ourGlob, negatives, opt) {
+    if (!negatives) negatives = [];
+    if (!opt) opt = {};
+    if (typeof opt.cwd !== 'string') opt.cwd = process.cwd();
+    if (typeof opt.dot !== 'boolean') opt.dot = false;
+    if (typeof opt.silent !== 'boolean') opt.silent = true;
+    if (typeof opt.nonull !== 'boolean') opt.nonull = false;
+    if (typeof opt.cwdbase !== 'boolean') opt.cwdbase = false;
+    if (opt.cwdbase) opt.base = opt.cwd;
+
+    // remove path relativity to make globs make sense
+    ourGlob = unrelative(opt.cwd, ourGlob);
+    negatives = negatives.map(unrelative.bind(null, opt.cwd));
+
+    // create globbing stuff
+    var globber = new glob.Glob(ourGlob, opt);
+
+    // extract base path from glob
+    var basePath = opt.base ? opt.base : glob2base(globber);
+
+    // create stream and map events from globber to it
+    var stream = through2.obj(negatives.length ? filterNegatives : undefined);
+
+    globber.on('error', stream.emit.bind(stream, 'error'));
+    globber.on('end', function(/* some args here so can't use bind directly */){
+      stream.end();
+    });
+    globber.on('match', function(filename) {
+      stream.write({
+        cwd: opt.cwd,
+        base: basePath,
+        path: path.resolve(opt.cwd, filename)
+      });
+    });
+
+    return stream;
+
+    function filterNegatives(filename, enc, cb) {
+      var matcha = isMatch.bind(null, filename, opt);
+      if (negatives.every(matcha)) {
+        cb(null, filename); // pass
+      } else {
+        cb(); // ignore
+      }
+    }
+  },
+
+  // creates a stream for multiple globs or filters
+  create: function(globs, opt) {
+    if (!opt) opt = {};
+
+    // only one glob no need to aggregate
+    if (!Array.isArray(globs)) return gs.createStream(globs, null, opt);
+
+    var positives = globs.filter(isPositive);
+    var negatives = globs.filter(isNegative);
+
+    if (positives.length === 0) throw new Error("Missing positive glob");
+
+    // only one positive glob no need to aggregate
+    if (positives.length === 1) return gs.createStream(positives[0], negatives, opt);
+
+    // create all individual streams
+    var streams = positives.map(function(glob){
+      return gs.createStream(glob, negatives, opt);
+    });
+
+    // then just pipe them to a single unique stream and return it
+    var aggregate = new Combine(streams);
+    var uniqueStream = unique('path');
+
+    return aggregate.pipe(uniqueStream);
+  }
+};
+
+function isMatch(file, opt, pattern) {
+  if (typeof pattern === 'string') return minimatch(file.path, pattern, opt);
+  if (pattern instanceof RegExp) return pattern.test(file.path);
+  return true; // unknown glob type?
+}
+
+function isNegative(pattern) {
+  if (typeof pattern !== 'string') return true;
+  if (pattern[0] === '!') return true;
+  return false;
+}
+
+function isPositive(pattern) {
+  return !isNegative(pattern);
+}
+
+function unrelative(cwd, glob) {
+  var mod = '';
+  if (glob[0] === '!') {
+    mod = glob[0];
+    glob = glob.slice(1);
+  }
+  return mod+path.resolve(cwd, glob);
+}
+
+
+module.exports = gs;