Include git version information in webpage and /etc/rpi-issue (#110)

Fixes #95.

deps/tools/configServer/Makefile

@@ -1,3 +1,4 @@
+IMG_VERSION?=$(shell git describe)
 DEPS_CFLAGS?=$(shell pkg-config --cflags cscore wpiutil)
 DEPS_LIBS?=$(shell pkg-config --libs --static cscore wpiutil)
 EXEC_HOME?=/home/pi
@@ -44,11 +45,11 @@ configServer: ${OBJS}
 	    $<
 
 %.html.cpp: %.html
-	./gen_resource.py $@ $<
+	env IMG_VERSION=${IMG_VERSION} ./gen_resource.py $@ $<
 
 %.css.cpp: %.css
-	./gen_resource.py $@ $<
+	env IMG_VERSION=${IMG_VERSION} ./gen_resource.py $@ $<
 
 %.js.cpp: %.js
-	./gen_resource.py $@ $<
+	env IMG_VERSION=${IMG_VERSION} ./gen_resource.py $@ $<
 

deps/tools/configServer/gen_resource.py

@@ -15,6 +15,10 @@ args = parser.parse_args()
 with open(args.inputFile, "rb") as f:
     data = f.read()
 
+version = os.getenv('IMG_VERSION')
+if version is not None and b'IMG_VERSION' in data:
+    data = data.replace(b'IMG_VERSION', version.encode('utf-8'))
+
 fileSize = len(data)
 
 inputBase = os.path.basename(args.inputFile)

deps/tools/configServer/src/resources/index.html

@@ -474,6 +474,15 @@
         </div>
       </main>
     </div>
+    <footer class="app-footer">
+      <div>
+        <a href="http://wpilib.screenstepslive.com/s/currentCS/m/85074/l/1027798-the-raspberry-pi-frc-console" target="_new">FRCVision-rPi</a>
+        <span>&copy; 2019 FIRST</span>
+      </div>
+      <div class="ml-auto">
+        <a href="https://github.com/wpilibsuite/FRCVision-pi-gen/releases" target="_new">IMG_VERSION</a>
+      </div>
+    </footer>
 
     <script type="text/javascript" src="jquery-3.3.1.slim.min.js"></script>
     <script type="text/javascript" src="popper.min.js"></script>