Paralell Changes Feed processing

Closes #5

README.md

@@ -26,6 +26,8 @@ Now CouchDB takes care of the couchmagick process.
 ; Optional username and password
 username = mein-user
 password = secure
+; Number of simultanous processes. Default is 4
+processes = 8
 ; Timeout in ms. Default is 10000
 timeout = 1000
 ; Batch size. Default is 100

index.js

@@ -28,6 +28,7 @@ couchmagick.get({
   },
 
   // Batching
+  processes: pkg.name + '.processes',
   limit: pkg.name + '.limit',
   timeout: pkg.name + '.timeout'
 }, function(err, config) {
@@ -36,6 +37,7 @@ couchmagick.get({
   }
 
   // defaults
+  config.processes = config.processes || 4;
   config.timeout = config.timeout || 10000;
   config.limit = config.limit || 100;
 
@@ -81,7 +83,7 @@ couchmagick.get({
         return process.exit(0);
       }
 
-      async.eachSeries(dbs, listen, run);
+      async.eachLimit(dbs, config.processes, listen, run);
     });
   }
   run();

package.json

@@ -1,6 +1,6 @@
 {
   "name": "couchmagick",
-  "version": "1.1.7",
+  "version": "1.1.8",
   "description": "Run ImageMagicks `convert` on CouchDB documents.",
   "main": "index.js",
   "preferGlobal": true,