build process (via Dockerfile) now timestamps build and that is exposed on about page

Dockerfile

@@ -20,7 +20,8 @@ RUN pip3 install --upgrade pillow --user
 EXPOSE 443
 EXPOSE 55432
 COPY . .
-RUN git log -n 15 > ./internal/git-log.txt
+RUN date > internal/build-date.txt
+RUN git log -n 15 > internal/git-log.txt
 RUN ln -s /code/TODO /code/internal/TODO
 RUN ln -s /code/BUGs /code/internal/BUGs
 RUN rm -rf .git

TODO

@@ -1,6 +1,4 @@
 ## GENERAL
-    * get Dockerfile to timestamp when it ran so Built on in about page is accurate (not the last commit time)
-
     * after move, instead of back to home page, go to an ammended view of the thumbs to keep moving
 
     * ignore face should ignore ALL matching faces (re: Declan)

main.py

@@ -199,7 +199,19 @@ def about():
             todo=fp.read()
     except FileNotFoundError:
         todo="No TODOs defined - cannot find TODO file!?"
-    return render_template("about.html", commits=commits, bugs=bugs, todo=todo)
+    try:
+        with open( 'internal/build-date.txt', 'r' ) as fp:
+            if 'ENV' in os.environ:
+                build_info=os.environ['ENV'] 
+            else:
+                build_info="Development"
+            build_info = build_info + " version built on: " + fp.read()
+    except FileNotFoundError:
+        if 'ENV' not in os.environ or os.environ['ENV'] == "development":
+            build_info="Development version"
+        else:
+            build_info="No build info found!?"
+    return render_template("about.html", commits=commits, bugs=bugs, todo=todo, build_info=build_info)
 
 @app.route('/logout')
 @login_required

templates/about.html

@@ -7,7 +7,7 @@
 {#          <svg width="64" height="64" fill="currentColor"><use xlink:href="{{url_for('internal', filename='icons.svg')}}#pa_logo" /></svg>&nbsp;About Photo Assistant</h3> #}
             <svg width="64" height="64" fill="currentColor"><use xlink:href="internal/icons.svg#pa_logo" /></svg>&nbsp;Photo Assistant - About</h3>
         <div class="alert alert-info">
-            Built on: {{commits[0].date}}
+            {{build_info}}
         </div>
     </div>
     <h5><b>