[BREAKING] Remove support for 'sourceMap' / 'cleancss' options

This change uses a modified version of less which is part of this
project. The dependencies "clean-css" and "source-map" are not included
anymore and providing the corresponding options will result in an error.

The "mime" dependency has been updated to resolve #25.

Fixes: #25

.eslintignore

@@ -0,0 +1 @@
+lib/thirdparty/

LICENSE.txt

@@ -200,3 +200,22 @@
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
+
+------------------------------------------------------------------------------
+APIs
+
+This project may include APIs to SAP or third party products or services. The use of these APIs, products and services may be subject to additional agreements. In no event shall the application of the Apache Software License, v.2 to this project grant any rights in or to these APIs, products or services that would alter, expand, be inconsistent with, or supersede any terms of these additional agreements. “API” means application programming interfaces, as well as their respective specifications and implementing code that allows other software products to communicate with or call on SAP or third party products or services (for example, SAP Enterprise Services, BAPIs, Idocs, RFCs and ABAP calls or other user exits) and may be made available through SAP or third party products, SDKs, documentation or other media.
+
+------------------------------------------------------------------------------
+SUBCOMPONENTS
+
+This project includes the following subcomponents that are subject to separate license terms.
+Your use of these subcomponents is subject to the separate license terms applicable to
+each subcomponent.
+
+Component: less.js
+Licensor: Alexis Sellier
+Website: http://lesscss.org/
+License: Apache License 2.0
+<year> = 2014
+<copyright holders> = Alexis Sellier & The Core Less Team

README.md

@@ -149,6 +149,8 @@ Type `object`
 
 Options for the [less](http://lesscss.org) compiler (`tree.toCss`).
 
+**Note:** The options `sourceMap` and `cleancss` are not supported. An exception will be thrown when used.
+
 ##### library.name
 
 Type `string`

lib/index.js

@@ -137,6 +137,13 @@ Builder.prototype.build = function(options) {
 		scope: {}
 	}, options);
 
+	if (options.compiler.sourceMap) {
+		throw new Error("compiler.sourceMap option is not supported!");
+	}
+	if (options.compiler.cleancss) {
+		throw new Error("compiler.cleancss option is not supported! Please use 'clean-css' directly.");
+	}
+
 	// Set default of "relativeUrls" parser option to "true" (less default is "false")
 	if (!Object.prototype.hasOwnProperty.call(options.parser, "relativeUrls")) {
 		options.parser.relativeUrls = true;

lib/less/importsPush.js

@@ -16,7 +16,7 @@
 /* eslint-disable consistent-this, new-cap, no-invalid-this */
 "use strict";
 
-const less = require("less");
+const less = require("../thirdparty/less");
 const tree = less.tree;
 
 module.exports = function createImportsPushFunction(env, fileLoader, parserFactory) {

lib/less/parser.js

@@ -15,7 +15,7 @@
 /* eslint-disable new-cap */
 "use strict";
 
-const less = require("less");
+const less = require("../thirdparty/less");
 const createFileLoader = require("./fileLoader");
 const createImportsPushFunction = require("./importsPush");
 

lib/plugin/import-collector.js

@@ -14,7 +14,7 @@
 
 "use strict";
 
-const less = require("less");
+const less = require("../thirdparty/less");
 
 const ImportCollector = module.exports = function(options) {
 	/* eslint-disable new-cap */

lib/plugin/rtl.js

@@ -14,7 +14,7 @@
 
 "use strict";
 
-const less = require("less");
+const less = require("../thirdparty/less");
 
 const cssSizePattern = /(-?[.0-9]+)([a-z]*)/;
 const percentagePattern = /^\s*(-?[.0-9]+)%\s*$/;

lib/plugin/variable-collector.js

@@ -14,7 +14,7 @@
 
 "use strict";
 const path = require("path");
-const less = require("less");
+const less = require("../thirdparty/less");
 
 const VariableCollector = module.exports = function(env) {
 	/* eslint-disable new-cap */