Configure .gitattributes to not diff backup files.

tasks/main.yml

@@ -39,6 +39,17 @@
     group=0
     mode=0644
 
+- name: Install .gitattributes configuration
+  tags: etckeeper
+  become: true
+  template:
+    src=etckeeper.gitattributes.j2
+    dest=/etc/.gitattributes
+    owner=0
+    group=0
+    mode=0644
+  when: etckeeper_vcs == 'git'
+
 
 - name: Install etckeeper packages
   tags: etckeeper

templates/etckeeper.gitattributes.j2

@@ -0,0 +1,20 @@
+{% if util_template_use_cow %}
+#  --------------------
+# ( Managed by Ansible )
+#  --------------------
+#   o            .    .     .
+#    o      .  . .     `  ,
+#     o    .; .  : .' :  :  : .
+#      o   i..`: i` i.i.,i  i .
+#       o   `,--.|i |i|ii|ii|i:
+#            UooU\.'@@@@@@`.||'
+#            \__/(@@@@@@@@@@)'
+#                 (@@@@@@@@)
+#                 `YY~~~~YY'
+#                  ||    ||
+{% else %}
+# {{ ansible_managed }}
+{% endif %}
+
+# Usually there is no need to diff backup files.
+*- -diff