#!/bin/sh

case "$(git version 2>/dev/null)" in
"git version"*)
	GIT=git ;;
*)
	echo >&2 "No git to bootstrap"
	exit 1 ;;
esac

inst_prefix=$(
	IFS=:
	for p in $PATH
	do
		probed=${p%/git-active/bin}
		if test "$probed" != "$p"
		then
			echo "$probed"
			exit
		fi
	done
	echo $HOME
)

LANG=C
old_style_def_fix=b79d18c92d9f4841a6a1a29b7b2373a8ff9871e1

: ${O=-O2}
Wall='-Wall -Wdeclaration-after-statement' tests=
while case $# in 0) break ;; esac
do 
	case "$1" in
	-pedantic | --pedantic)
		o= &&
		rev=$($GIT rev-parse HEAD) &&
		case "$($GIT merge-base "$old_style_def_fix" "$rev")" in
		$old_style_def_fix)
			o=-Wold-style-definition ;;
		esac
		O="$O -Werror $o -std=c99 -Wno-pointer-to-int-cast"
		# O="$O -fwrapv -fno-strict-overflow"
		;;
	-loose | --loose)
		Wall=
		;;
	--locale=*)
		LANG=${1#*=}
		;;
	--test=*)
		tests=$(
			cd t &&
			for t in ${1#*=}
			do
				eval echo "t$t-*.sh"
			done | tr '\012' ' '
		)
		;;
	--)
		shift
		break
		;;
	-*)
		echo >&2 "Eh $1?"
		exit 1
		;;
	*)
		break
		;;		
	esac
	shift
done

LC_ALL=$LANG
export LANG LC_ALL

head=`$GIT symbolic-ref HEAD 2>/dev/null` &&
branch=`expr "$head" : 'refs/heads/\(.*\)'` || branch=detached

case "$branch" in
next | maint | master | pu | jch)
	prefix="$inst_prefix/git-$branch"
	;;
snap)
	v=`$GIT describe HEAD`
	expr "$v" : '.*-g[0-9a-f]*$' >/dev/null && {
	    echo >&2 "You are on 'snap' but $v is not an official version."
	    exit 1
	}
	prefix="$inst_prefix/git-snap-$v"
	;;
*)
	prefix="$inst_prefix/git-test" ;;
esac
d="prefix=$prefix"

sh -c 'git describe --abbrev=4 HEAD' >/dev/null 2>&1 || {
	$GIT describe --abbrev=4 HEAD | sed -e 's/-/./g' >version
}

d="$d ASCIIDOC_NO_ROFF=YesPlease ASCIIDOC8=YesPlease"

# Platform hack
if test -z "${make:+set}" && test -x /usr/local/bin/gmake
then
	make=gmake
fi

CFLAGS="$O $Wall -g"
OK_TO_USE_CFLAGS=Yes
if test -n "${NO_CFLAGS+set}"
then
	unset OK_TO_USE_CFLAGS
fi

${make-make} $d \
     ETC_GITCONFIG=$prefix/etc/gitconfig \
     ${OK_TO_USE_CFLAGS+"CFLAGS=$CFLAGS"} \
     ${tests:+"T=$tests"} \
     "$@"
status=$?
rm -f version
exit $status