import many settings on boot from remote URL

Allows sharing commonly used configurations amongst folks. CC @jasoncalabrese.
SArneJ · Aug 7, 2016 · dd2d0ae · dd2d0ae
1 parent 0860064
commit dd2d0ae
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diff --git a/env.js b/env.js
@@ -17,6 +17,7 @@ function config ( ) {
    */
   env.DISPLAY_UNITS = readENV('DISPLAY_UNITS', 'mg/dl');
   env.PORT = readENV('PORT', 1337);
+  env.IMPORT_CONFIG = readENV('IMPORT_CONFIG', null);
   env.static_files = readENV('NIGHTSCOUT_STATIC_FILES', __dirname + '/static/');
 
   if (env.err) {

diff --git a/lib/bootevent.js b/lib/bootevent.js
@@ -18,6 +18,34 @@ function boot (env) {
     return ctx.bootErrors && ctx.bootErrors.length > 0;
   }
 
+  function augmentSettings (ctx, next) {
+    var configURL = env.IMPORT_CONFIG || null;
+    var url = require('url');
+    var href = null;
+    try {
+      href = url.parse(configURL).href;
+    } catch (e) {
+    }
+    if(configURL && href) {
+      var request = require('request');
+      console.log('Getting', href);
+      request.get({url: href, json: true}, function (err, resp, body) {
+        console.log("GOT", body);
+        if (err) {
+          console.log('Attempt to fetch config', href, 'failed.');
+          console.error(err);
+          throw err;
+        } else {
+          console.log('extending');
+          _.merge(env.settings, body);
+        }
+        next( );
+      });
+    } else {
+      next( );
+    }
+  }
+
   function setupMongo (ctx, next) {
 
     if (hasBootErrors(ctx)) {
@@ -170,6 +198,7 @@ function boot (env) {
 
   return require('bootevent')( )
     .acquire(checkEnv)
+    .acquire(augmentSettings)
     .acquire(setupMongo)
     .acquire(setupAuthorization)
     .acquire(setupInternals)