Check if machines are ready for SSH communication.

lib/vagrant-hostmanager/action/update_hosts_file.rb

@@ -39,9 +39,11 @@ module VagrantPlugins
           # copy the hosts file to each matching machine
           # TODO append hostname to loopback address
           matching_machines.each do |machine|
-            env[:ui].info @translator.t('update', { :name => machine.name })
-            machine.communicate.upload(path, '/tmp/hosts')
-            machine.communicate.sudo("mv /tmp/hosts /etc/hosts")
+            if machine.communicate.ready?
+              env[:ui].info @translator.t('update', { :name => machine.name })
+              machine.communicate.upload(path, '/tmp/hosts')
+              machine.communicate.sudo("mv /tmp/hosts /etc/hosts")
+            end
           end
 
           @app.call(env)

lib/vagrant-hostmanager/version.rb

@@ -1,5 +1,5 @@
 module VagrantPlugins
   module HostManager
-    VERSION = '0.0.2'
+    VERSION = '0.0.3'
   end
 end

test/test.sh

@@ -5,6 +5,10 @@ echo "[server1] /etc/hosts file:"
 vagrant ssh server1 -c 'cat /etc/hosts'
 echo "[server2] /etc/hosts file:"
 vagrant ssh server2 -c 'cat /etc/hosts'
+
+vagrant halt
+vagrant up
+
 vagrant destroy server1 -f
 echo "[server2] /etc/hosts file:"
 vagrant ssh server2 -c 'cat /etc/hosts'