Added vulcanize under third_party/npm_modules

node_modules/vulcanize/lib/pathresolver.js

+/**
+ * @license
+ * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+ */
+
+var path = require('path');
+var constants = require('./constants.js');
+var utils = require('./utils.js');
+var setTextContent = utils.setTextContent;
+var getTextContent = utils.getTextContent;
+var searchAll = utils.searchAll;
+
+function resolvePaths($, input, output, abspath) {
+  var assetPath;
+  if (abspath) {
+    assetPath = rebasePath(input, abspath);
+  } else {
+    assetPath = path.relative(output, input);
+  }
+  // make sure assetpath is a folder, but not root!
+  if (assetPath) {
+    assetPath = utils.unixPath(assetPath) + '/';
+  }
+  // resolve attributes
+  searchAll($, constants.URL_ATTR_SEL).each(function() {
+    var el = $(this);
+    constants.URL_ATTR.forEach(function(a) {
+      var val = el.attr(a);
+      if (val) {
+        if (val.search(constants.URL_TEMPLATE) < 0) {
+          if (a === 'style') {
+            el.attr(a, rewriteURL(input, output, val, abspath));
+          } else {
+            el.attr(a, rewriteRelPath(input, output, val, abspath));
+          }
+        }
+      }
+    });
+  });
+  searchAll($, constants.CSS).each(function() {
+    var el = $(this);
+    var text = rewriteURL(input, output, getTextContent(el), abspath);
+    setTextContent(el, text);
+  });
+  searchAll($, constants.ELEMENTS).each(function() {
+    $(this).attr('assetpath', assetPath);
+  });
+}
+
+function rebasePath(absolutePath, baselinePath) {
+  var absBase = new RegExp('^' + utils.escapeForRegExp(baselinePath));
+  return absolutePath.replace(absBase, '');
+}
+
+function rewriteRelPath(inputPath, outputPath, rel, abspath) {
+  if (constants.ABS_URL.test(rel)) {
+    return rel;
+  }
+
+  var abs = path.resolve(inputPath, rel);
+
+  if (abspath) {
+    return utils.unixPath(rebasePath(abs, abspath));
+  }
+
+  var relPath = path.relative(outputPath, abs);
+  return utils.unixPath(relPath);
+}
+
+function rewriteURL(inputPath, outputPath, cssText, abspath) {
+  return cssText.replace(constants.URL, function(match) {
+    var path = match.replace(/["']/g, "").slice(4, -1);
+    path = rewriteRelPath(inputPath, outputPath, path, abspath);
+    return 'url("' + path + '")';
+  });
+}
+
+exports.resolvePaths = resolvePaths;
+exports.rewriteRelPath = rewriteRelPath;
+exports.rewriteURL = rewriteURL;