Delete boot files only after booting successfully

Author: piranna

lib/index.js

@@ -30,11 +30,8 @@ function usersSessions(usersFolder, callback)
 {
   function done(error)
   {
-    // Remove the modules from initramfs to free memory
-    // rimraf('/lib/node_modules')
-    rimraf('/lib/node_modules/jocker')
-
     // Make '/usr' a opaque folder (OverlayFS feature)
+    // TODO Is this needed to be done here? Can it be done in a cleaner place?
     rimraf('/usr')
 
     callback(error)

package.json

@@ -31,10 +31,7 @@
     "rimraf": "^2.5.4"
   },
   "devDependencies": {
-    "jocker": "^0.0.0",
+    "jocker": "^0.0.1",
     "prompt": "^1.0.0"
-  },
-  "peerDependencies": {
-    "jocker": "^0.0.1"
   }
 }

server.js

@@ -5,6 +5,7 @@ const readFile = require('fs').readFile
 const basicEnvironment = require('nodeos-boot-singleUser')
 const linuxCmdline     = require('linux-cmdline')
 const mountUsersFS     = require('nodeos-boot-singleUserMount')
+const rimraf           = require('rimraf').sync
 const startRepl        = require('nodeos-mount-utils').startRepl
 
 const prepareSessions = require('.')
@@ -45,6 +46,20 @@ basicEnvironment(function(error)
       {
         if(error) return onerror(error)
 
+        // Remove from initramfs the files only needed on boot to free memory
+        try
+        {
+          rimraf('/bin/nodeos-boot-multiuser')
+          rimraf('/init')
+          rimraf('/lib/node_modules/nodeos-boot-multiuser')
+          rimraf('/sbin')
+        }
+        catch(error)
+        {
+          // If `rootfs` is read-only (like in `vagga`), ignore the error
+          if(error.code !== 'EROFS') return callback(error)
+        }
+
         // KTHXBYE >^.^<
       })
     })