etckeeper: manage the ignore list

5 files changed, 58 insertions, 3 deletions

diff --git a/roles/etckeeper/defaults/main.yml b/roles/etckeeper/defaults/main.yml
index 176453c..e783002 100644
--- a/roles/etckeeper/defaults/main.yml
+++ b/roles/etckeeper/defaults/main.yml
@@ -3,3 +3,18 @@ git_email: Egor.Tensin@gmail.com
 
 etckeeper_remote_name: origin
 #etckeeper_remote_url:
+
+etckeeper_ignored_paths:
+  # My resolv.conf is typically managed, by either systemd or NetworkManager.
+  - /resolv.conf
+  # This is just a stupid systemd file.
+  - /.updated
+  # I really don't need all the Wi-Fi networks.
+  - /NetworkManager/system-connections/
+  # I'm unsure about this; but it does make pacman upgrades much easier - I
+  # don't need to account for /etc/pacman.d/gnupg suddenly having changes.
+  - /pacman.d/gnupg/
+  # I run rate-mirrors before every upgrade pretty much.
+  - /pacman.d/mirrorlist
+
+etckeeper_extra_ignored_paths: []
diff --git a/roles/etckeeper/handlers/commit_conf.yml b/roles/etckeeper/handlers/commit.yml
index 134e264..f48db8f 100644
--- a/roles/etckeeper/handlers/commit_conf.yml
+++ b/roles/etckeeper/handlers/commit.yml
@@ -4,7 +4,7 @@
     set -o pipefail && \
     git status --porcelain=v1 \
         | cut -c 4- \
-        | grep -G -v '^etckeeper/etckeeper.conf'
+        | grep -G -v '^{{ paths | map("regex_replace", "^/", "") | list | join("\|^") }}'
   args:
     chdir: /etc
   register: git_status
@@ -21,4 +21,4 @@
 - name: etckeeper commit
   become: true
   ansible.builtin.command: |
-    etckeeper commit 'configure etckeeper'
+    etckeeper commit '{{ commit_msg }}'
diff --git a/roles/etckeeper/handlers/main.yml b/roles/etckeeper/handlers/main.yml
index 9993ed5..ca6beaa 100644
--- a/roles/etckeeper/handlers/main.yml
+++ b/roles/etckeeper/handlers/main.yml
@@ -1,3 +1,13 @@
 - name: Commit etckeeper.conf
-  ansible.builtin.include_tasks: commit_conf.yml
+  ansible.builtin.include_tasks: commit.yml
+  vars:
+    paths: [etckeeper/etckeeper.conf]
+    commit_msg: configure etckeeper
   listen: etckeeper_commit_conf
+
+- name: Commit .gitignore
+  ansible.builtin.include_tasks: commit.yml
+  vars:
+    paths: '{{ [".gitignore"] + etckeeper_ignored_paths + etckeeper_extra_ignored_paths }}'
+    commit_msg: configure ignored files
+  listen: etckeeper_commit_gitignore
diff --git a/roles/etckeeper/tasks/ignore.yml b/roles/etckeeper/tasks/ignore.yml
new file mode 100644
index 0000000..a798368
--- /dev/null
+++ b/roles/etckeeper/tasks/ignore.yml
@@ -0,0 +1,18 @@
+- name: Add line to .gitignore
+  become: true
+  ansible.builtin.lineinfile:
+    path: /etc/.gitignore
+    line: '{{ ignore_path }}'
+    state: present
+    owner: root
+    group: root
+    mode: '644'
+  register: gitignore
+  notify: etckeeper_commit_gitignore
+
+- name: Remove path from cache
+  when: gitignore.changed
+  become: true
+  ansible.builtin.command: # noqa: command-instead-of-module
+    cmd: git rm -r --ignore-unmatch --cached -- '{{ ignore_path | regex_replace("^/", "") }}'
+    chdir: /etc
diff --git a/roles/etckeeper/tasks/main.yml b/roles/etckeeper/tasks/main.yml
index 431a378..f609ce7 100644
--- a/roles/etckeeper/tasks/main.yml
+++ b/roles/etckeeper/tasks/main.yml
@@ -74,3 +74,15 @@
         option: PUSH_REMOTE
         value: '{{ etckeeper_remote_name }}'
       notify: etckeeper_commit_conf
+
+- name: Commit etckeeper.conf if necessary
+  ansible.builtin.meta: flush_handlers
+
+- name: Configure ignored paths
+  ansible.builtin.include_tasks: ignore.yml
+  loop: '{{ etckeeper_ignored_paths + etckeeper_extra_ignored_paths }}'
+  loop_control:
+    loop_var: ignore_path
+
+- name: Commit .gitignore if necessary
+  ansible.builtin.meta: flush_handlers