Add markup for headings in logs

Dockerfile

@@ -43,6 +43,13 @@ RUN \
     || true
 
 RUN \
+    printHeading() { \
+        local heading; \
+        heading="====================================================="; \
+        echo "$heading"; \
+        [ -z "$1" ] && cat || echo "$1"; \
+        echo "$heading"; \
+    }; \
     wget "${KEIL_URL}" --progress=bar:force:noscroll -O MDK537.exe; \
     [ $DEBUG -eq 1 ] && { \
         mkdir -p logs; \
@@ -75,7 +82,7 @@ RUN \
     }; \
     # Run actual MDK537 installer
     install_keil() { \
-        echo "Starting ARM Keil installation"; \
+        printHeading "Starting ARM Keil installation"; \
         try="$1"; \
         logFile="$(mktemp)"; \
         # Run installer asynchronously
@@ -128,12 +135,14 @@ RUN \
             [ "$exitCode" -eq 42 ] && mv "$logFile" "logs/timeout-handled-try$try.log"; \
             [ "$exitCode" -ne 0 ] && mv "$logFile" "logs/fail-try$try.log"; \
         }; \
-        [ "$exitCode" -ne 0 ] && { \
-            [ "$exitCode" -eq 42 ] && echo "The installation Got Stuck" || \
-            echo "The Installation Failed"; \
-        } || \
-        echo "The Installation Was Successful"; \
-        echo "Installation Process Exited With Code $exitCode"; \
+        { \
+            [ "$exitCode" -ne 0 ] && { \
+                [ "$exitCode" -eq 42 ] && echo "The installation Got Stuck" || \
+                echo "The Installation Failed"; \
+            } || \
+            echo "The Installation Was Successful"; \
+            echo "Installation Process Exited With Code $exitCode"; \
+        } | printHeading; \
         return "$exitCode"; \
     }; \
     display=:90; \
@@ -158,7 +167,7 @@ RUN \
             "$y" \
         ; \
     do \
-        echo "Restarting Installation"; \
+        printHeading "Restarting Installation"; \
         # Increase counter
         y="$(expr "$y" + 1)"; \
     done && \