Output shell script that is running [GH-1568]

CHANGELOG.md

@@ -55,6 +55,7 @@ IMPROVEMENTS:
     rather than the less-than-helpful class name.
   - Shared folders with the same guest path will overwrite each other. No
     more shared folder IDs.
+  - Shell provisioner outputs script it is running. [GH-1568]
 
 BUG FIXES:
 

plugins/provisioners/shell/provisioner.rb

@@ -14,6 +14,14 @@ module VagrantPlugins
           @machine.communicate.tap do |comm|
             comm.upload(path.to_s, config.upload_path)
 
+            if config.path
+              @machine.ui.info(I18n.t("vagrant.provisioners.shell.running",
+                                      script: path.to_s))
+            else
+              @machine.ui.info(I18n.t("vagrant.provisioners.shell.running",
+                                      script: "inline script"))
+            end
+
             # Execute it with sudo
             comm.sudo(command) do |type, data|
               if [:stderr, :stdout].include?(type)

templates/locales/en.yml

@@ -1107,9 +1107,10 @@ en:
 
       shell:
         args_not_string: "Shell provisioner `args` must be a string."
-        path_and_inline_set: "Only one of `path` or `inline` may be set."
         no_path_or_inline: "One of `path` or `inline` must be set."
+        path_and_inline_set: "Only one of `path` or `inline` may be set."
         path_invalid: "`path` for shell provisioner does not exist on the host system: %{path}"
+        running: "Running: %{script}"
         upload_path_not_set: "`upload_path` must be set for the shell provisioner."
 
       ansible: