Implement file syncing

roles/sync/files_sync/defaults/main.yml

@@ -0,0 +1,16 @@
+---
+files_sync:
+  directories:
+    - source:
+        # Location of the files to sync from. DO NOT INCLUDE TRAILING SLASH!
+        files_dir: "/home/{{ deploy_user }}/shared/{{ project_name }}_prod/assets/{{ project_name }}_prod_default_public_files"
+        # Host that contains source files.
+        host: "localhost"
+        # Location on deploy server where source files get copied to first. NO TRAILING SLASH.
+        temp_dir: "/tmp"
+        # Used to create directory in /tmp.
+        build_id: mybuildprod
+      target:
+        # Location of the files to sync to. DO NOT INCLUDE TRAILING SLASH!
+        files_dir: "/home/{{ deploy_user }}/shared/{{ project_name }}_dev/assets/{{ project_name }}_dev_default_public_files"
+        build_id: mybuilddev

roles/sync/files_sync/tasks/main.yml

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+---
+- name: Sync files.
+  include_tasks: "sync.yml"
+  with_items: "{{ files_sync.directories }}"
+  loop_control:
+    loop_var: files
+  run_once: true

roles/sync/files_sync/tasks/sync.yml

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+---
+- name: Create a temporary directory for source files on localhost.
+  ansible.builtin.file:
+    path: "{{ files.source.temp_dir }}/{{ files.source.build_id }}"
+    state: directory
+    owner: "{{ deploy_user }}"
+    group: "{{ deploy_user }}"
+  delegate_to: localhost
+  run_once: true
+
+- name: Copy the source files onto the deploy server.
+  ansible.builtin.command:
+    cmd: "rsync -e 'ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' -aHPv {{ files.source.host }}:{{ files.source.files_dir }}/ {{ files.source.temp_dir }}/{{ files.source.build_id }}/"
+  delegate_to: "localhost"
+  run_once: true
+
+- name: Copy the source files from the deploy server onto the destination server.
+  ansible.builtin.command:
+    cmd: "rsync -e 'ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' -aHPv {{ files.source.temp_dir }}/{{ files.source.build_id }}/ {{ ansible_play_hosts[0] }}:{{ files.target.files_dir }}/"
+  delegate_to: "localhost"
+  run_once: true