Rework nr-cli

- better componentisation
- add 'search' option to look for npm modules
- add 'target' option to point at non-default installs

red/cli/lib/config.js

@@ -0,0 +1,49 @@
+/**
+ * Copyright 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+ **/
+
+var path = require("path");
+var fs = require("fs");
+
+var userHome = process.env.HOME || process.env.HOMEPATH || process.env.USERPROFILE;
+
+var configDir = path.join(userHome,".nodered");
+var configFile = path.join(configDir,"config.json");
+
+var config;
+
+function load() {
+    if (config == null) {
+        try {
+            config = JSON.parse(fs.readFileSync(configFile));
+        } catch(err) {
+            config = {};
+        }
+    }
+}
+
+function save() {
+    try {
+        fs.mkdirSync(configDir);
+    } catch(err) {
+        if (err.code != "EEXIST") {
+            throw err;
+        }
+    }
+    fs.writeFileSync(configFile,JSON.stringify(config,null,4));
+}
+module.exports = {};
+module.exports.__defineGetter__('target',function() { load(); return config.target|| "http://localhost:1880" });
+module.exports.__defineSetter__('target',function(v) { load(); config.target = v; save();});

red/cli/lib/request.js

@@ -0,0 +1,40 @@
+/**
+ * Copyright 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+ **/
+ 
+var when = require("when");
+var request = require("request");
+var config = require("./config");
+
+module.exports = function(path, options) {
+    var basePath = config.target;
+    return when.promise(function(resolve,reject) {
+        options.headers = options.headers||{};
+        options.headers['Accept'] = 'application/json';
+        if (options.method == 'PUT' || options.method == "POST") {
+            options.headers['content-type'] = 'application/json';
+        }
+        options.url = basePath+path;
+        request(options, function(error,response,body) {
+            if (!error && response.statusCode == 200) {
+                resolve(JSON.parse(body));
+            } else if (error) {
+                reject(error.toString());
+            } else {
+                reject(response.statusCode+": "+body)
+            }
+        });
+    });
+}