Ansible script: Try a more idempotent approach for package clearing.

[config] / ansible / config.yml

diff --git a/ansible/config.yml b/ansible/config.yml
index ec592c674b9d8e4d73d19e32fdb2a99a4a409d2e..5e7503b64b51d5e56c3af2f5575c73d7136d0ee0 100644 (file)
--- a/ansible/config.yml
+++ b/ansible/config.yml
@@ -13,12 +13,12 @@
   # Configure package management.
   - name: update package lists
     apt: update_cache=yes
-  - name: check for initial_purge_happened flag
-    stat: path=flags/initial_purge_happened
-    register: initial_purge
-  - name: perform initial purge
-    include: tasks/initial_purge.yml
-    when: initial_purge.stat.exists == False
+  #- name: check for initial_purge_happened flag
+  #  stat: path=flags/initial_purge_happened
+  #  register: initial_purge
+  #- name: perform initial purge
+  #  include: tasks/initial_purge.yml
+  #  when: initial_purge.stat.exists == False
   - name: APT - dist-upgrade
     apt: upgrade=dist
 
@@ -32,7 +32,7 @@
     shell: update-grub
 
   # Ensure power management.
-  - name: ensure newest kernel and grub are installed
+  - name: ensure power management tools are installed
     apt: name={{item}} state=present
     with_items:
     - tlp
@@ -122,3 +122,15 @@
     - xul-ext-noscript
     - xul-ext-pentadactyl
     - vim-gtk  # used by pentadactyl for text editing
+
+  # Remove undesired packages
+  - name: collect required packages
+    shell: cat files/apt-mark/* > /tmp/white_list_unsorted && sort /tmp/white_list_unsorted > /tmp/white_list_sorted
+  - name: collect currently installed packages
+    shell: dpkg-query -Wf '${Package}\n' > /tmp/all_unsorted && sort /tmp/all_unsorted > /tmp/all_sorted
+  - name: create black list of packages to mark as automatically installed from the difference between the required packages and the packages currently installed
+    shell: comm -3 /tmp/all_sorted /tmp/white_list_sorted > /tmp/list_black
+  - name: mark all packages from black list as automatically installed
+    shell: apt-mark auto $(cat /tmp/list_black)
+  - name: purge all packages automatically installed that are not depended on
+    shell: DEBIAN_FRONTEND=noninteractive apt-get -y --purge autoremove