Add local file deletion on `torrent.destroy`

When we call `torrent.destroy` and we are not running in a browser, we use
`rimraf` to delete the folder containing the torrent files.

lib/torrent.js

@@ -25,6 +25,7 @@ var path = require('path')
 var Piece = require('torrent-piece')
 var pump = require('pump')
 var randomIterate = require('random-iterate')
+var rimraf = require('rimraf')
 var sha1 = require('simple-sha1')
 var speedometer = require('speedometer')
 var uniq = require('uniq')
@@ -71,7 +72,7 @@ function Torrent (torrentId, client, opts) {
 
   this.announce = opts.announce
   this.urlList = opts.urlList
-
+  this._fromLocalFile = opts.path
   this.path = opts.path
   this._store = opts.store || FSChunkStore
   this._getAnnounceOpts = opts.getAnnounceOpts
@@ -686,6 +687,14 @@ Torrent.prototype._destroy = function (err, cb) {
     })
   }
 
+  // We won't delete torrent created from local file
+  // We also can't delete file created on a browser
+  if (typeof window === 'undefined' && !self._fromLocalFile && self.path) {
+    tasks.push(function (cb) {
+      rimraf(self.path, cb)
+    })
+  }
+
   parallel(tasks, cb)
 
   if (err) {

package.json

@@ -49,6 +49,7 @@
     "range-parser": "^1.2.0",
     "readable-stream": "^2.1.4",
     "render-media": "^2.8.0",
+    "rimraf": "^2.6.1",
     "run-parallel": "^1.1.6",
     "run-parallel-limit": "^1.0.3",
     "safe-buffer": "^5.0.1",