Add cmd-line help and reduce node error output by default

Added nopt package dependency - npm update required!

Added -v cmdline option to show node module load errors, which are otherwise hidden by default with only a summary shown

package.json

@@ -22,21 +22,22 @@
     ],
     "dependencies": {
         "express": "3.x",
-        "when": "~2.6.0",
+        "when": "2.8.0",
-        "mqtt": "~0.3.3",
+        "nopt": "2.2.0",
-        "ws": "~0.4.31",
+        "mqtt": "~0.3.7",
+        "ws": "0.4.31",
         "fs-extra": "~0.8.1",
-        "clone": "~0.1.11",
+        "clone": "0.1.11",
-        "mustache": "~0.7.2",
+        "mustache": "~0.8.1",
-        "cron":"1.x",
+        "cron":"~1.0.3",
-        "raw-body":"~1.1.2",
+        "raw-body":"1.1.2",
         "twitter-ng":"~0.6.2",
-        "oauth":"~0.9.10",
+        "oauth":"~0.9.11",
         "xml2js":"~0.2.8",
         "sentiment":"~0.2.1",
         "irc":"~0.3.6",
         "follow-redirects":"~0.0.3",
-        "cors":"~2.1.1",
+        "cors":"~2.2.0",
         "mkdirp":"~0.3.5"
     },
     "devDependencies": {

red.js

@@ -18,6 +18,8 @@ var https = require('https');
 var util = require("util");
 var express = require("express");
 var crypto = require("crypto");
+var nopt = require("nopt");
+var path = require("path");
 var RED = require("./red/red.js");
 
 var server;
@@ -26,21 +28,53 @@ var app = express();
 var settingsFile = "./settings";
 var flowFile;
 
-for (var argp = 2;argp < process.argv.length;argp+=1) {
+var knownOpts = {
-    var v = process.argv[argp];
+    "settings":[path],
-    if (v == "--settings" || v == "-s") {
+    "v": Boolean,
-        if (argp+1 == process.argv.length) {
+    "help": Boolean
-            console.log("Missing argument to --settings");
+};
-            return;
+var shortHands = {
-        }
+    "s":["--settings"],
-        argp++;
+    "?":["--help"]
-        settingsFile = process.argv[argp];
+};
-    } else {
+nopt.invalidHandler = function(k,v,t) {
-        flowFile = v;
+    // TODO: console.log(k,v,t);
-    }
 }
 
-var settings = require(settingsFile);
+var parsedArgs = nopt(knownOpts,shortHands,process.argv,2)
+
+if (parsedArgs.help) {
+    console.log("Usage: node red.js [-v] [-?] [--settings settings.js] [flows.json]");
+    console.log("");
+    console.log("Options:");
+    console.log("  -s, --settings FILE  use specified settings file");
+    console.log("  -v                   enable verbose output");
+    console.log("  -?, --help           show usage");
+    console.log("");
+    console.log("Documentation can be found at http://nodered.org");
+    process.exit();
+}
+if (parsedArgs.argv.remain.length > 0) {
+    flowFile = parsedArgs.argv.remain[0];
+}
+
+if (parsedArgs.settings) {
+    settingsFile = parsedArgs.settings;
+}
+try {
+    var settings = require(settingsFile);
+} catch(err) {
+    if (err.code == 'MODULE_NOT_FOUND') {
+        console.log("Unable to load settings file "+settingsFile);
+    } else {
+        console.log(err);
+    }
+    process.exit();
+}
+
+if (parsedArgs.v) {
+    settings.verbose = true;
+}
 
 if (settings.https) {
     server = https.createServer(settings.https,function(req,res){app(req,res);});
@@ -102,16 +136,17 @@ if (settings.httpStatic) {
     app.use("/",express.static(settings.httpStatic));
 }
 
-RED.start();
+RED.start().then(function() {
-
+    var listenPath = 'http'+(settings.https?'s':'')+'://'+
-var listenPath = 'http'+(settings.https?'s':'')+'://'+
                      (settings.uiHost == '0.0.0.0'?'127.0.0.1':settings.uiHost)+
                      ':'+settings.uiPort+settings.httpAdminRoot;
     
-server.listen(settings.uiPort,settings.uiHost,function() {
+    server.listen(settings.uiPort,settings.uiHost,function() {
         util.log('[red] Server now running at '+listenPath);
+    });
 });
 
+
 process.on('uncaughtException',function(err) {
         if (err.errno === "EADDRINUSE") {
             util.log('[red] Unable to listen on '+listenPath);

red/nodes.js

@@ -273,6 +273,7 @@ module.exports.load = function(settings) {
     }
     
     function loadNodes(dir) {
+        var errors = [];
         fs.readdirSync(dir).sort().filter(function(fn){
                 var stats = fs.statSync(path.join(dir,fn));
                 if (stats.isFile()) {
@@ -280,26 +281,30 @@ module.exports.load = function(settings) {
                         try {
                             require(path.join(dir,fn));
                         } catch(err) {
-                            util.log("["+fn+"] "+err);
+                            errors.push({fn:fn, err:err});
+                            //util.log("["+fn+"] "+err);
                             //console.log(err.stack);
                         }
                     }
                 } else if (stats.isDirectory()) {
                     // Ignore /.dirs/, /lib/ /node_modules/ 
                     if (!/^(\..*|lib|icons|node_modules)$/.test(fn)) {
-                        loadNodes(path.join(dir,fn));
+                        errors = errors.concat(loadNodes(path.join(dir,fn)));
                     } else if (fn === "icons") {
                         events.emit("node-icon-dir",path.join(dir,fn));
                     }
                 }
         });
+        return errors;
     }
-    loadNodes(__dirname+"/../nodes");
+    var errors = loadNodes(__dirname+"/../nodes");
     scanForNodes(__dirname+"/../nodes");
     if (settings.nodesDir) {
-        loadNodes(settings.nodesDir);
+        errors = errors.concat(loadNodes(settings.nodesDir));
         scanForNodes(settings.nodesDir);
     }
+    //console.log(errors);
+    return errors;
     //events.emit("nodes-loaded");
 }
 

red/server.js

@@ -16,6 +16,8 @@
 
 var express = require('express');
 var util = require('util');
+var when = require('when');
+
 var createUI = require("./ui");
 var redNodes = require("./nodes");
 
@@ -71,20 +73,25 @@ function createServer(_server,_settings) {
 }
 
 function start() {
+    var defer = when.defer();
+    
     storage.init(settings).then(function() {
         console.log("\nWelcome to Node-RED\n===================\n");
         util.log("[red] Loading palette nodes");
+        var nodeErrors = redNodes.load(settings);
+        if (nodeErrors.length > 0) {
             util.log("------------------------------------------");
-        redNodes.load(settings);
+            if (settings.verbose) {
-        util.log("");
+                for (var i=0;i<nodeErrors.length;i+=1) {
-        util.log('You may ignore any errors above here if they are for');
+                    util.log("["+nodeErrors[i].fn+"] "+nodeErrors[i].err);
-        util.log('nodes you are not using. The nodes indicated will not');
+                }
-        util.log('be available in the main palette until any missing');
+            } else {
-        util.log('modules are installed, typically by running:');
+                util.log("[red] Failed to register "+nodeErrors.length+" node type"+(nodeErrors.length==1?"":"s"));
-        util.log('   npm install {the module name}');
+                util.log("[red] Run with -v for details");
-        util.log('or any other errors are resolved');
+            }
             util.log("------------------------------------------");
-        
+        }
+        defer.resolve();
         storage.getFlows().then(function(flows) {
                 if (flows.length > 0) {
                     redNodes.setConfig(flows);
@@ -93,6 +100,8 @@ function start() {
                 util.log("[red] Error loading flows : "+err);
         });
     });
+    
+    return defer.promise;
 }
 
 function stop() {