gather_build_info

#!/bin/sh

machine=$(uname -m) > /dev/null 2>&1
if [ "$?" != "0" ]
then
	machine="unknown-machine"
fi

os=$(uname -o) > /dev/null 2>&1
if [ "$?" != "0" ]
then
	# check for mac OSX (this could probably be done better)
	uname -a | grep '^Darwin ' > /dev/null 2>&1
	if [ "$?" = "0" ]
	then
		os="Darwin"
	else
		os="unknown-os"
	fi
fi

diffcount="0"
git_hash=$(git rev-parse HEAD) > /dev/null 2>&1
if [ "$?" != "0" ]
then
	git_hash="unknown-git-hash"
else
	diffcount=$(git diff 2>&1 | wc -c)
	if [ "$?" != "0" ]
	then
		diffcount='?'
	fi
fi

if [ "$diffcount" = "0" ]
then
	diffsummary=""
else
	diffsummary="+ $diffcount"
fi

today=$(date '+%Y-%m-%d %H:%M:%S')
if [ "$?" != "0" ]
then
	today="unknown"
fi

endianness=$(./check-endianness)
if [ "$?" != "0" ]
then
	endianness="unknown-wordsize unknown-endianness"
fi

cat << EOF
#ifndef __BUILD_INFO
#define __BUILD_INFO

/* This file is machine generated */
#define BUILD_INFO_STRING1 "v. " SNIS_VERSION " - $endianness $machine $os"
#define BUILD_INFO_STRING2 "$today $git_hash $diffsummary"

#endif
EOF