From 49420b56b31e113f4c40128c530f2e585a9f8061 Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Sun, 12 May 2013 01:12:27 +0200
Subject: [PATCH] Include git revision and date in the eeprom variable

---
 projects/step-up/Makefile   |  9 ++++++---
 projects/step-up/version.pl | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 3 deletions(-)
 create mode 100755 projects/step-up/version.pl

diff --git a/projects/step-up/Makefile b/projects/step-up/Makefile
index 07bb151..55422fc 100644
--- a/projects/step-up/Makefile
+++ b/projects/step-up/Makefile
@@ -1,7 +1,7 @@
 
 PROGRAM=lights
-SRC=main.c logging.c pwm.c adc.c pwmled.c pattern.c buttons.c control.c \
-	battery.c wdt.c
+SRC=version.c main.c logging.c pwm.c adc.c pwmled.c pattern.c buttons.c \
+	control.c battery.c wdt.c
 OBJ=$(SRC:.c=.o)
 
 
@@ -62,5 +62,8 @@ objdump: $(PROGRAM).elf
 clean:
 	rm -f $(PROGRAM).hex $(PROGRAM).eep $(PROGRAM).elf *.o *.s eeprom.raw
 
-.PHONY: all clean dump_eeprom program program_flash program_eeprom objdump
+version.c:
+	./version.pl > version.c
+
+.PHONY: all clean dump_eeprom program program_flash program_eeprom objdump version.c
 
diff --git a/projects/step-up/version.pl b/projects/step-up/version.pl
new file mode 100755
index 0000000..cb4ecc7
--- /dev/null
+++ b/projects/step-up/version.pl
@@ -0,0 +1,32 @@
+#!/usr/bin/perl -w
+
+use strict;
+use POSIX qw(strftime);
+
+my $git = `git rev-parse --short HEAD`;
+chomp $git;
+
+my $now = strftime('%Y%m%d', localtime(time));
+
+print <<EOF;
+/* DO NOT EDIT - GENERATED BY $0 */
+
+#include <avr/eeprom.h>
+
+unsigned char version[] EEMEM = {
+EOF
+
+print hex2c($git, "git revision");
+print hex2c($now, "date");
+
+print "};\n\n/* EOF - this file has not been truncated */\n\n";
+
+sub hex2c {
+	my ($data, $comment) = @_;
+
+	my $data1 = $data;
+	$data1 .= '0' if (length($data1) & 1 == 1);
+	$data1 =~ s/(..)/0x$1, /g;
+	return "\t$data1 /* $comment $data */\n";
+}
+
-- 
2.43.5