Issue #733: Copy and move composer.json file so Windows composer install works.

Author: geerlingguy

provisioning/tasks/build-composer.yml

@@ -7,10 +7,17 @@
   become: no
   when: drupal_composer_path and not drupal_site_exists
 
-- name: Copy composer.json into place.
+# Use copy-and-move to prevent issues in Windows with VirtualBox. See:
+# https://github.com/ansible/ansible/issues/9526#issuecomment-62336962
+- name: Copy composer.json into temporary location.
   copy:
     src: "{{ drupal_composer_path }}"
-    dest: "{{ drupal_composer_install_dir }}/composer.json"
+    dest: "/tmp/drupalvm-composer.json"
+  when: drupal_composer_path and not drupal_site_exists
+  become: no
+
+- name: Move composer.json into place.
+  command: "mv /tmp/drupalvm-composer.json {{ drupal_composer_install_dir }}/composer.json"
   when: drupal_composer_path and not drupal_site_exists
   become: no