script now waits for the user to press the button

keyboards/satan/keymaps/iso_split_rshift/build.sh

@@ -1,16 +1,40 @@
 #!/bin/bash
 # adjust for cpu 
 # -j 16 gave best result on a hyperthreaded quad core core i7
+
+LIMIT=10
 THREADS="-j 16"
 KMAP=iso_split_rshift
+
 echo "We need sudo later"
 sudo ls 2>&1 /dev/null
+
+function wait_bootloader {
+	echo "Waiting for Bootloader..."
+	local STARTTIME=$(date +"%s")
+	local REMIND=0
+    local EXEC=dfu-programmer
+    local TARGET=atmega32u4
+	while true
+	do
+		sudo $EXEC $TARGET get > /dev/null 2>&1
+		[ $? -eq 0 ] && break
+		ENDTIME=$(date +"%s")
+		DURATION=$(($ENDTIME-$STARTTIME))
+		if [ $REMIND -eq 0 -a $DURATION -gt $LIMIT ]
+		then 
+			echo "Did you forget to press the reset button?"
+			REMIND=1
+		fi
+        sleep 1
+	done
+}
 make clean
 make KEYMAP=${KMAP} ${THREADS}
 if [[ $? -eq 0 ]]
 then
-    echo "please trigger flashing! you have 5 seconds"
-    sleep 5
+    echo "please trigger flashing!"
+    wait_bootloader
     sudo make KEYMAP=${KMAP} dfu ${THREADS}
 else
     echo "make failed"