Generate site twice on deploy

Generate the first time so that the output directories are
created. Then when PurgeCSS runs, it can look at the generated
files when purging the stylesheets.

Generate again to copy the final assets from "source/build" to
the correct output directory.

There may be a better way, but this works for now.

ansible/deploy/after-symlink-shared.yml

@@ -1,4 +1,14 @@
 ---
+- name: Install Composer dependencies
+  composer:
+   command: install
+   working_dir: "{{ ansistrano_release_path.stdout }}"
+
+- name: Generate the site once without assets
+  command: composer run prod
+  args:
+   chdir: "{{ ansistrano_release_path.stdout }}"
+
 - name: Install Node dependencies
   command: yarn install
   args:
@@ -9,12 +19,7 @@
   args:
    chdir: "{{ ansistrano_release_path.stdout }}"
 
-- name: Install Composer dependencies
-  composer:
-   command: install
-   working_dir: "{{ ansistrano_release_path.stdout }}"
-
-- name: Generate the site
+- name: Generate the site, including assets
   command: composer run prod
   args:
    chdir: "{{ ansistrano_release_path.stdout }}"