just finished cbfmt

tasks/pkgs/buf.yml

@@ -1,13 +1,34 @@
 # vim: set filetype=yaml.ansible :
 ---
-- name: Add buf
+- name: Set default buf values
+  ansible.builtin.set_fact:
+    buf:
+      install_methods:
+        - source
+      build_deps:
+        - go
+      version: latest
+      go_pkg: github.com/bufbuild/buf/cmd/buf
+- name: Configure bug install
   when:
-    - buf_configured is undefined
+    - "'buf' not in __configured"
   block:
-    - name: Append buf to pkg_go
+    - name: Set buf install method
+      when:
+        - buf_install_method is undefined
       ansible.builtin.set_fact:
-        pkg_go: "{{ pkg_go + ['github.com/bufbuild/buf/cmd/buf@latest'] }}"
+        buf_install_method: "{{ install_method if install_method in buf.install_methods else buf.install_methods[0] }}"
 
-    - name: Set buf_configured
+    - name: Configure buf source install
+      when:
+        - buf_install_method == 'source'
+      block:
+        - name: Append buf to pkg_go
+          ansible.builtin.set_fact:
+            buf_go_install:
+              bin: buf
+              url: "{{ buf.go_pkg }}@{{ buf.version }}"
+
+    - name: Finalise buf configuration
       ansible.builtin.set_fact:
-        buf_configured: true
+        __configured: "{{ __configured | combine( { 'buf': buf_install_method } ) }}"