#!/bin/sh

J='-l 4 -j'
G=/pub/software/scm/git &&

cd $HOME/git &&
make clean >/dev/null 2>&1 &&
git reset --hard &&
make clean >/dev/null 2>&1 &&
git checkout master &&
git pull . origin &&
make clean >/dev/null 2>&1 &&

case "$1" in
'')
	echo "* Building all"
	branches='naster master maint'

	# Make sure naster is between master and pu if exists
	if naster=`git rev-parse --verify refs/heads/naster 2>/dev/null`
	then
		master=`git rev-parse --verify refs/heads/master` &&
		pu=`git rev-parse --verify refs/heads/pu` &&
		MBM=`git merge-base --all $naster $master` &&
		MBN=`git merge-base --all $naster $pu` &&
		case ",$MBM,$MBN," in
		",$master,$naster,") ;;
		*)	echo >&2 "naster is not between master and pu"
			exit 1 ;;
		esac
		# If naster is the same as pu, no point rebuilding pu.
		case ",$naster,$pu," in
		",$pu,$naster,") ;;
		*) branches="$branches pu" ;;
		esac
	fi

	{
		nstalled=install
		for branch in $branches
		do
			if git-rev-parse --verify refs/heads/$branch 2>/dev/null
			then
				echo "** $branch **" &&
				git checkout $branch &&
				make $J $nstalled &&
				make test &&
				make clean &&
				nstalled=all || exit $?
			else
				echo
				echo "* NO $branch"
				echo
			fi
		done
	} >:all.log 2>&1
	;;
maint | master)
	mkdir -p $G/RPMS/i386 $G/RPMS/SRPMS &&

	echo "* Building $1"
	git checkout "$1" &&
	make rpm >./:rpm.log 2>&1 &&
	make $J git >>./:rpm.log 2>&1 &&
	V=`./git --version | sed -e 's/git version //'` &&
	ln git-$V.tar.gz $G/. &&
	ln $HOME/rpms/RPMS/i386/git*-$V-* $G/RPMS/i386/. &&
	ln $HOME/rpms/SRPMS/git-$V-* $G/RPMS/SRPMS/. &&
	{
		# I do not know how it exits, and I do not care much.
		/usr/local/bin/yummy $G/RPMS/i386
		/usr/local/bin/yummy $G/RPMS/SRPMS
		:
	} &&
	rm -fr ./:rpm.log &&
	make clean &&

	: ;;
esac || exit $?

git checkout master