From f57200880509f516536ecf05d3ec9787ebb2ba74 Mon Sep 17 00:00:00 2001
From: Michcio <public+git@meekchopp.es>
Date: Sun, 4 Sep 2022 00:14:51 +0200
Subject: [PATCH] Switch to a A/B model

---
 playbook.yml | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/playbook.yml b/playbook.yml
index 69ac26f..fb40913 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -9,11 +9,21 @@
     deploys_root: /var/lib/misskey/deploys
     config_yml: /var/lib/misskey/default.yml
   tasks:
-    - name: Generate deploy dir name
+    - name: Checking which environment is currently prod
+      ansible.builtin.stat:
+        path: "{{ deploys_root }}/current"
+        get_attributes: false
+        get_checksum: false
+        get_mime: false
+        follow: false
+      register: previous_current
+      become: true
+      become_user: "{{ user }}"
+    - name: Picking staging environment that is not currently prod
       ansible.builtin.set_fact:
-        deploy_dir: "{{ deploys_root }}/{{ ansible_date_time.iso8601_basic_short }}"
+        deploy_dir: "{{ deploys_root }}/{{ previous_current.stat.lnk_source.endswith('sunrise') | ternary('sunset', 'sunrise') }}"
       run_once: true
-    - name: Print the generated deployment name
+    - name: Print the chosen deployment directory
       ansible.builtin.debug:
         var: deploy_dir
       run_once: true
@@ -27,8 +37,6 @@
           ansible.builtin.file:
             path: "{{ deploy_dir }}"
             state: directory
-            mode: '0755'
-            recurse: true
         - name: Clone source repository
           ansible.builtin.git:
             repo: "{{ source_repository }}"
@@ -39,10 +47,6 @@
             dest: "{{ deploy_dir }}/.config/default.yml"
             src: "{{ config_yml }}"
             state: link
-        - name: Reflink copy previous node_modules
-          ansible.builtin.command: cp -r --reflink "{{ deploys_root }}/current/node_modules" "{{ deploy_dir }}/node_modules"
-          args:
-            creates: "{{ deploy_dir }}/node_modules"
         - name: Install Yarn dependencies
           ansible.builtin.command: yarn install
           changed_when: true
@@ -55,18 +59,12 @@
             chdir: "{{ deploy_dir }}"
     - name: Deploy
       block:
-        - name: Note down previous deploy
-          become: true
-          become_user: "{{ user }}"
-          ansible.builtin.command: readlink "{{ deploys_root }}/current"
-          changed_when: true
-          register: previous_shell
         - name: Link previous deploy
           become: true
           become_user: "{{ user }}"
           ansible.builtin.file:
             dest: "{{ deploys_root }}/previous"
-            src: "{{ previous_shell.stdout }}"
+            src: "{{ previous_current.stat.lnk_source }}"
             state: link
             force: true
         - name: Link new deploy