Allow installing from source using certbot-auto URL

tasks/install-from-source-git.yml

@@ -0,0 +1,8 @@
+---
+- name: Clone Certbot into configured directory.
+  git:
+    repo: "{{ certbot_repo }}"
+    dest: "{{ certbot_dir }}"
+    version: "{{ certbot_version }}"
+    update: "{{ certbot_keep_updated }}"
+    force: true

tasks/install-from-source-url.yml

@@ -0,0 +1,11 @@
+---
+- name: Create Certbot directory
+  file:
+    path: "{{ certbot_dir }}"
+    state: "directory"
+
+- name: Download Certbot into configured directory
+  get_url:
+    url: "{{ certbot_source_url }}"
+    dest: "{{ certbot_script }}"
+    force: "{{ certbot_keep_updated }}"

tasks/install-from-source.yml

@@ -1,16 +1,14 @@
 ---
-- name: Clone Certbot into configured directory.
-  git:
-    repo: "{{ certbot_repo }}"
-    dest: "{{ certbot_dir }}"
-    version: "{{ certbot_version }}"
-    update: "{{ certbot_keep_updated }}"
-    force: true
-
 - name: Set Certbot script variable.
   set_fact:
     certbot_script: "{{ certbot_dir }}/certbot-auto"
 
+- import_tasks: 'install-from-source-git.yml'
+  when: certbot_install_from_source_method == 'git'
+
+- import_tasks: 'install-from-source-url.yml'
+  when: certbot_install_from_source_method == 'url'
+
 - name: Ensure certbot-auto is executable.
   file:
     path: "{{ certbot_script }}"