From dbfb3cab70153c47323de4e3f84340096e62ee35 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Thu, 16 Sep 2021 13:20:15 +0200
Subject: streaming/blackmagic/*: apt pinning vs package hold

---
 .../blackmagic/desktopvideo/tasks/main.yml         | 27 ++++++++++++++++++----
 .../blackmagic/mediaexpress/tasks/main.yml         | 25 ++++++++++++++++----
 2 files changed, 42 insertions(+), 10 deletions(-)

(limited to 'roles/streaming')

diff --git a/roles/streaming/blackmagic/desktopvideo/tasks/main.yml b/roles/streaming/blackmagic/desktopvideo/tasks/main.yml
index 3ef7231e..98d2d28b 100644
--- a/roles/streaming/blackmagic/desktopvideo/tasks/main.yml
+++ b/roles/streaming/blackmagic/desktopvideo/tasks/main.yml
@@ -13,21 +13,38 @@
   set_fact:
     blackmagic_desktopvideo_packages: "{{ ['desktopvideo'] | union(blackmagic_desktopvideo_include_gui | ternary(['desktopvideo-gui'], [])) }}"
 
+- name: generate apt pin files for desktopvideo packages
+  when: blackmagic_desktopvideo_version is defined
+  loop: "{{ blackmagic_desktopvideo_packages }}"
+  copy:
+    dest: "/etc/apt/preferences.d/{{ item }}.pref"
+    content: |
+      Package: {{ item }}
+      Pin: version {{ blackmagic_desktopvideo_version }}
+      Pin-Priority: 1001
+
+- name: remove apt pin files for desktopvideo packages
+  when: blackmagic_desktopvideo_version is not defined
+  loop: "{{ blackmagic_desktopvideo_packages }}"
+  file:
+    path: "/etc/apt/preferences.d/{{ item }}.pref"
+    state: absent
+
 - name: install blackmagic desktopvideo packages
   apt:
     name: "{{ blackmagic_desktopvideo_packages | product(blackmagic_desktopvideo_version is defined | ternary(['=' + (blackmagic_desktopvideo_version | default(''))], [''])) | map('join') }}"
     state: present
     force: yes
-    ## TODO: remove force once the following changes are available
-    ##   https://github.com/ansible/ansible/pull/73629 or https://github.com/ansible/ansible/pull/72562
+    # allow_downgrade: yes
+    ## TODO: replace force with allow_downgrade once the following change is available (ansible >= 5.0)
     ##   https://github.com/ansible/ansible/pull/74852
 
-- name: disable automatic upgrades for desktopvideo packages
-  when: blackmagic_desktopvideo_version is defined
+  ## TODO: remove this when all machines are migrated to use pin files
+- name: unhold packages (we now use APT pinning)
   loop: "{{ blackmagic_desktopvideo_packages }}"
   dpkg_selections:
     name: "{{ item }}"
-    selection: hold
+    selection: install
 
 - name: install improved kill mode for DesktopVideoHelper (1/2)
   file:
diff --git a/roles/streaming/blackmagic/mediaexpress/tasks/main.yml b/roles/streaming/blackmagic/mediaexpress/tasks/main.yml
index 3b99b8d3..7cb771d9 100644
--- a/roles/streaming/blackmagic/mediaexpress/tasks/main.yml
+++ b/roles/streaming/blackmagic/mediaexpress/tasks/main.yml
@@ -3,17 +3,32 @@
   import_role:
     name: apt-repo/blackmagic
 
+- name: generate apt pin files for blackmagic mediaexpress
+  when: blackmagic_mediaexpress_version is defined
+  copy:
+    dest: "/etc/apt/preferences.d/mediaexpress.pref"
+    content: |
+      Package: mediaexpress
+      Pin: version {{ blackmagic_mediaexpress_version }}
+      Pin-Priority: 1001
+
+- name: remove apt pin files for blackmagic mediaexpress
+  when: blackmagic_mediaexpress_version is not defined
+  file:
+    path: "/etc/apt/preferences.d/mediaexpress.pref"
+    state: absent
+
 - name: install blackmagic mediaexpress
   apt:
     name: "mediaexpress{% if blackmagic_mediaexpress_version is defined %}={{ blackmagic_mediaexpress_version }}{% endif %}"
     state: present
     force: yes
-    ## TODO: remove force once the following changes are available
-    ##   https://github.com/ansible/ansible/pull/73629 or https://github.com/ansible/ansible/pull/72562
+    # allow_downgrade: yes
+    ## TODO: replace force with allow_downgrade once the following change is available (ansible >= 5.0)
     ##   https://github.com/ansible/ansible/pull/74852
 
-- name: disable automatic upgrades for mediaexpress
-  when: blackmagic_mediaexpress_version is defined
+  ## TODO: remove this when all machines are migrated to use pin files
+- name: unhold packages (we now use APT pinning)
   dpkg_selections:
     name: mediaexpress
-    selection: hold
+    selection: install
-- 
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