show version number in footer (#329)

.github/workflows/ci.yml

@@ -82,6 +82,8 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          build-args: |
+            SOURCE_COMMIT=${{ github.sha }}
           platforms: ${{ matrix.platform }}
           labels: ${{ steps.meta.outputs.labels }}
           outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=${{ github.event_name != 'pull_request' }}

app/views/layouts/application.html.erb

@@ -60,8 +60,10 @@
       TV information and images are provided by <a target="_blank" href="https://www.thetvdb.com/">TheTVDB.com</a>, but we are not endorsed or certified by <a target="_blank" href="https://www.thetvdb.com/">TheTVDB.com</a> or its affiliates.
       <br>
       <% if last_updated_episode = Episode.order(updated_at: :desc).first %>
-        Last update: <%= l last_updated_episode.updated_at, format: :long %>
+        Last content update: <%= l last_updated_episode.updated_at, format: :long %>
+        &middot;
       <% end %>
+      Version: <%= Rails.application.config.x.version %>
       &middot;
       Code available on <a href="https://github.com/klausmeyer/whatchy">GitHub</a> :)
     </div>

config/initializers/version.rb

@@ -0,0 +1,7 @@
+Rails.application.config.x.version = "0.1.0"
+
+# Docker Cloud will pass the git commit it is building the image from
+# See: https://docs.docker.com/docker-hub/builds/advanced/
+if (sha = ENV["SOURCE_COMMIT"].presence || ENV["SOURCE_VERSION"].presence)
+  Rails.application.config.x.version << " (#{sha[0...7]})"
+end