add project clear method

Author: sanfilip

lib/project/clear.js

@@ -0,0 +1,32 @@
+'use strict';
+
+var projectConfig = require('./../projectConfig');
+
+/**
+ * @memberof project
+ * @method clear
+ * @description Clear the project configuration settings.  Only the project name will remain in the config file.
+ * @param {function} cb - Node-style error-first callback function
+ * @returns {object} project config
+ * @example
+ * paperspace.project.clear(function(err, resp) {
+ *   // handle error or http response
+ * });
+ * @example
+ * $ paperspace project clear
+ * @example
+ * # Note: there is no HTTP request corresponding to 'paperspace project clear'.
+ * @example
+ * // Example return value:
+ * {
+ *   "project": "myproject",
+ * }
+ */
+
+function clear(params, cb) {
+	projectConfig.clear();
+	var config = projectConfig.show();
+	return cb(null, config);
+}
+
+module.exports = clear;

lib/project/index.js

@@ -5,6 +5,7 @@
  */
 
 module.exports = {
+	clear: require('./clear'),
 	init: require('./init'),
 	show: require('./show'),
 };

lib/projectConfig.js

@@ -27,6 +27,13 @@ function write() {
 	}
 }
 
+function clear() {
+	read();
+	var project = config.project;
+	config = { project: project };
+	write();
+}
+
 function getProject() {
 	read();
 	return config.project;
@@ -183,5 +190,6 @@ module.exports = {
 	setWorkspace: setWorkspace,
 	getName: getName,
 	setName: setName,
+	clear: clear,
 	show: show,
 };