Merge pull request #101 from cabal-club/preferredPort

add preferredPort (default 13331) to core opts

README.md

@@ -30,6 +30,7 @@ var cabal = Cabal(storage, key, { db: level('/tmp/bot.db') })
 
 Other `opts` include:
 
+- `opts.preferredPort`: controls the port cabal listens on. defaults to port `13331`.
 - `opts.modKeys`: an array of keys to be considered moderators from this user's perspective.
 - `opts.adminKeys`: an array of keys to be considered administrators from this user's perspective.
 

index.js

@@ -54,6 +54,7 @@ function Cabal (storage, key, opts) {
   this.maxFeeds = opts.maxFeeds
   this.modKeys = opts.modKeys || []
   this.adminKeys = opts.adminKeys || []
+  this.preferredPort = opts.preferredPort || 13331
 
   if (!key) this.key = generateKeyHex()
   else {

swarm.js

@@ -16,7 +16,8 @@ module.exports = function (cabal, opts, cb) {
 
     const discoveryKey = crypto.discoveryKey(Buffer.from(cabal.key, 'hex'))
 
-    const swarm = hyperswarm()
+    const { preferredPort } = cabal
+    const swarm = hyperswarm({ preferredPort })
     swarm.join(discoveryKey, {
       lookup: true,
       announce: true