#!/usr/bin/perl
# Output a version.c file that includes information about the current build
# Normally a couple of lines of bash would be enough (see openpcd project, original firmware by Harald Welte and Milosch Meriac)
# but this will, at least in theory, also work on Windows with our current compile environment.
# -- Henryk Plötz <henryk@ploetzli.ch> 2009-09-28
# Modified april 2014 because of the move to github. 
# --- Martin Holst Swende <martin@swende.se>
# Modified january 2016 to work with Travis-CI
# --- iceman <iceman@iuse.se>

# Clear environment locale so that git will not use localized strings
$ENV{'LC_ALL'} = "C";
$ENV{'LANG'} = "C";

my $githistory = `git fetch --all`;
my $gitversion = `git describe --dirty`;
my $gitbranch = `git rev-parse --abbrev-ref HEAD`;
my $clean = $gitversion =~ '-dirty' ? 0 : 1;
my @compiletime = localtime();

my $fullgitinfo = 'iceman';

if ( defined $gitbranch and defined $gitversion ) {
	$fullgitinfo =  $fullgitinfo.'/'. $gitbranch . '/' . $gitversion;
} else {
	$fullgitinfo =  $fullgitinfo.'/master/release-build (no_git)';
}

$fullgitinfo =~ s/(\s)//g;

# Crop so it fits within 50 characters
$fullgitinfo =~ s/.{50}\K.*//s;

$compiletime[4] += 1;
$compiletime[5] += 1900;
my $ctime = sprintf("%6\$04i-%5\$02i-%4\$02i %3\$02i:%2\$02i:%1\$02i", @compiletime);


print <<EOF
#include "proxmark3.h"
/* Generated file, do not edit */
const struct version_information __attribute__((section(".version_information"))) version_information = {
	VERSION_INFORMATION_MAGIC,
	1,
	1,
	$clean,
	"$fullgitinfo",
	"$ctime",
};
EOF