Merge pull request #3 from SignalK/master

Merge from SignalK/master

lib/interfaces/plugins.js

@@ -99,9 +99,20 @@ function registerPlugin(app, pluginName) {
   debug('Registering plugin ' + pluginName)
   const plugin = require(pluginName)(app)
   const options = getPluginOptions(plugin.id)
+  const restart = (newConfiguration) => {
+    const pluginOptions = getPluginOptions(plugin.id)
+    pluginOptions.configuration = newConfiguration
+    fs.writeFile(pathForPluginId(plugin.id), JSON.stringify(pluginOptions, null, 2), function(err) {
+      if(err) {
+        console.error(err)
+      }
+      plugin.stop()
+      plugin.start(newConfiguration, restart)
+    })
+  }
   if (options && options.enabled) {
     debug('Starting plugin ' + pluginName)
-    plugin.start(getPluginOptions(plugin.id).configuration)
+    plugin.start(getPluginOptions(plugin.id).configuration, restart)
   }
   app.plugins.push(plugin)
 
@@ -123,11 +134,11 @@ function registerPlugin(app, pluginName) {
         return
       }
       res.send("Saved configuration for plugin " + plugin.id)
+      plugin.stop()
+      if (req.body && req.body.enabled) {
+        plugin.start(req.body.configuration, restart)
+      }
     });
-    plugin.stop()
-    if (req.body && req.body.enabled) {
-      plugin.start(req.body.configuration)
-    }
   })
   if(typeof plugin.registerWithRouter != 'undefined') {
     plugin.registerWithRouter(router)

lib/pipedproviders.js

@@ -47,6 +47,7 @@ module.exports = function(app) {
         app.signalk.addDelta(data);
       }
     });
+    app.emit("pipedProvidersStarted", providerConfig)
     return result;
   }
 

raspberry_pi_installation.md

@@ -51,16 +51,17 @@ Now we will download three tools; curl, git and build-essential. These tools wil
 
     $ sudo apt-get install -y curl git build-essential
 
-Then we use curl followed by "apt-get" again to add Nodesource repository and install Node.js, which is the runtime environment for Signal K Node server.
+Node server requires Node version 6 or newer. For Raspberry Pi 2 and 3 follow the instructions below. If in doubt, test with 
 
-    $ curl -sL https://deb.nodesource.com/setup_0.12 | sudo -E bash -
-    $ sudo apt-get install -y nodejs
+    $ uname -m
+
+If the result returned starts with “armv6”, you are running a Raspberry Pi based on the older ARMv6 chipset and these instructions will not work.
 
-Once this has completed you can check that Node.js is installed OK, by typing...
+Add NodeSource repository to the system so that we can install Node with `apt-get`:
 
-    $ node -v
-
-and you should see "v0.12.11" appear or whatever the latest version is.
+    $ curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
+    $ sudo apt install nodejs
+    
 
 Finally we need to install a Bonjour (mDNS) service for LINUX called Avahi, which allows Apps and other network devices to Discover the Signal K server. To do this we will use "apt-get" again ...
 
@@ -109,7 +110,7 @@ So that is Signal K....looks good doesn't it ? Actually this is just some JSON d
 
 To generate your own vessel settings file, starting with the same NMEA data from the demo file, type...
 
-    $ sudo sh rpi-setup.sh
+    $ sudo bash rpi-setup.sh
 and type your vessel name. This generates a UUID and a settings file in json format in settings/<yourVessel>.json. This can be edited directly by looking at the example settings. When running this script, the server is running from boot using a systemd service called signalk.service.
 
 ## Step 3 - Install Signal K Consumers

rpi-setup.sh

@@ -13,6 +13,7 @@ socket="/etc/systemd/system/signalk.socket"
 
 echo -n "Enter your vessel name and press [enter]:"
 read vesselName
+vesselName=${vesselName// /_}
 echo ""
 echo "Signal K default port is 3000 as per documentation"
 echo "port 80 does not require \":3000\" in browser and app interfaces"