Lint: Fix [301] Commands should not change things if nothing needs doing

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Nginx: Block `composer/installed.json` ([#1150](https://github.com/roots/trellis/pull/1150))
 * Run `git clean` after checking `git clone` is successful ([#1151](https://github.com/roots/trellis/pull/1151))
 * Lint: Fix: `[206] Variables should have spaces before and after: {{ var_name }}` ([#1152](https://github.com/roots/trellis/pull/1152))
+* Lint: Fix `[301] Commands should not change things if nothing needs doing ([#1139](https://github.com/roots/trellis/pull/1139))
 
 ### 1.3.0: December 7th, 2019
 * Add `git_sha` and `release_version` to `.env` on deploy ([#1124](https://github.com/roots/trellis/pull/1124))

roles/common/tasks/reload_nginx.yml

@@ -2,6 +2,7 @@
 - name: reload nginx
   command: nginx -t
   notify: "{{ (role_path | basename == 'common') | ternary('perform nginx reload', omit) }}"
+  changed_when: true
 
 - name: perform nginx reload
   service:

roles/rollback/tasks/prior-release.yml

@@ -4,6 +4,7 @@
   args:
     chdir: "{{ project_root }}"
   register: current_release_position
+  changed_when: false
 
 - name: Fail if current release is the oldest available release
   fail:
@@ -15,6 +16,7 @@
   args:
     chdir: "{{ project_root }}"
   register: releases
+  changed_when: false
 
 - name: Create new_release_path variable
   set_fact:

roles/rollback/tasks/user-release.yml

@@ -9,6 +9,7 @@
   args:
     chdir: "{{ project_root }}"
   register: current_release
+  changed_when: false
 
 - name: Fail if user-specified release doesn't exist or is already active
   fail:

roles/xdebug-tunnel/tasks/main.yml

@@ -10,6 +10,7 @@
   become: no
   register: xdebug_tunnel
   ignore_errors: true
+  changed_when: true
 
 - name: Interpret and present Xdebug SSH tunnel errors
   fail: