feat: read config from repo

Lets us do things like `jsipfs config --bool EXPERIMENTAL.pubsub true` and have IPFS
respect the flags in daemon and non-daemon mode

package.json

@@ -136,6 +136,7 @@
     "libp2p-webrtc-star": "~0.15.0",
     "libp2p-websocket-star": "~0.8.0",
     "libp2p-websockets": "~0.12.0",
+    "lodash.defaultsdeep": "^4.6.0",
     "lodash.flatmap": "^4.5.0",
     "lodash.get": "^4.4.2",
     "lodash.set": "^4.3.2",

src/core/index.js

@@ -16,6 +16,9 @@ const CID = require('cids')
 const debug = require('debug')
 const extend = require('deep-extend')
 const EventEmitter = require('events')
+const waterfall = require('async/waterfall')
+const series = require('async/series')
+const defaults = require('lodash.defaultsdeep')
 
 const config = require('./config')
 const boot = require('./boot')
@@ -109,20 +112,6 @@ class IPFS extends EventEmitter {
     this.dns = components.dns(this)
     this.key = components.key(this)
     this.stats = components.stats(this)
-
-    if (this._options.EXPERIMENTAL.pubsub) {
-      this.log('EXPERIMENTAL pubsub is enabled')
-    }
-    if (this._options.EXPERIMENTAL.sharding) {
-      this.log('EXPERIMENTAL sharding is enabled')
-    }
-    if (this._options.EXPERIMENTAL.dht) {
-      this.log('EXPERIMENTAL Kademlia DHT is enabled')
-    }
-    if (this._options.EXPERIMENTAL.relay) {
-      this.log('EXPERIMENTAL Relay is enabled')
-    }
-
     this.state = require('./state')(this)
 
     // ipfs.ls
@@ -136,7 +125,49 @@ class IPFS extends EventEmitter {
       isIPFS: isIPFS
     }
 
-    boot(this)
+    series([
+      (cb) => {
+        waterfall([
+          (done) => this._repo.config.get((error, config) => {
+            if (error) {
+              console.info('Error', error)
+            }
+
+            cb(null, config || {})
+          }),
+          (config, done) => {
+            this._options = defaults({}, config, this._options)
+
+            done()
+          }
+        ], cb)
+      },
+      (cb) => {
+        if (this._options.EXPERIMENTAL.pubsub) {
+          this.log('EXPERIMENTAL pubsub is enabled')
+        }
+
+        if (this._options.EXPERIMENTAL.sharding) {
+          this.log('EXPERIMENTAL sharding is enabled')
+        }
+
+        if (this._options.EXPERIMENTAL.dht) {
+          this.log('EXPERIMENTAL Kademlia DHT is enabled')
+        }
+
+        if (this._options.EXPERIMENTAL.relay) {
+          this.log('EXPERIMENTAL Relay is enabled')
+        }
+
+        cb()
+      }
+    ], (error) => {
+      if (error) {
+        return this.emit('error', error)
+      }
+
+      boot(this)
+    })
   }
 }