git ssb

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#! /bin/sh
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if [ ${#} -eq 1 ] && [ "x$1" = "x-r" ]; then
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	# release text only
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	QUIET=1
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else
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	QUIET=0
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fi
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if ! `(git status | grep -q "On branch") 2> /dev/null`; then
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        # If we don't have git, we can't work out what
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        # version this is. It must have been downloaded as a
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        # zip file. 
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        # If downloaded from the release page, the directory
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        # has the version number.
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        release=`pwd | sed s/.*sslh-// | grep "[[:digit:]]"`
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        if [ "x$release" = "x" ]; then
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            # If downloaded from the head, Github creates the
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            # zip file with all files dated from the last
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            # change: use the Makefile's modification time as a
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            # release number
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            release=head-`perl -MPOSIX -e 'print strftime "%Y-%m-%d",localtime((stat "Makefile")[9])'`
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        fi
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fi
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if head=`git rev-parse --verify HEAD 2>/dev/null`; then
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	# generate the version info based on the tag
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	release=`(git describe --tags || git --describe || git describe --all --long) \
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		2>/dev/null | tr -d '\n'`
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	# Are there uncommitted changes?
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	git update-index --refresh --unmerged > /dev/null
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	if git diff-index --name-only HEAD | grep -v "^scripts/package" \
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	    | read dummy; then
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		release="$release-dirty"
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	fi
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fi
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if [ $QUIET -ne 1 ]; then
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	printf "#ifndef _VERSION_H_ \n"
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	printf "#define _VERSION_H_ \n\n"
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	printf "#define VERSION \"$release\"\n"
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	printf "#endif\n"
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else
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	printf "$release\n"
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fi
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