#!/bin/sh set -ex if [ -z $BUILDHOSTS ]; then	BUILDHOSTS=$HOME/src/myr/buildhostsfi build(){	host=$1	os=$2	wrkdir=$3	auth=$4	passwd=$5 	makeprg=gmake	vcs=git	remotecmd="ssh $host"	setpath="mkdir -p $wrkdir/root/bin && export PATH=$PATH:$wrkdir/root/bin"	showpatch="cd '$wrkdir/mc' && cat update.patch"	case $os in	plan9)		if echo $host | grep '@' > /dev/null; then			user=$(echo $host | cut -d '@' -f1)			host=$(echo $host | cut -d '@' -f2)		fi		if ! -z $passwd; then			export PASS=$passwd		fi		makeprg=mk		vcs=hg		setpath="mkdir -p $wrkdir/root/bin && bind -bc $wrkdir/root/bin /amd64/bin; 			 mkdir -p $wrkdir/root/lib && bind -bc $wrkdir/root/lib /amd64/lib;			 mkdir -p $wrkdir/root/sys && bind -bc $wrkdir/root/sys /sys"		buildcmd="rc -e -c 'webfs; cd $wrkdir/mc ; $setpath; 			$makeprg bootstrap ; $makeprg install ; $makeprg clean ; git pull ;			$makeprg genbootstrap ; $vcs diff > update.patch'"		showpatch="cd $wrkdir/mc ; cat update.patch ; rm -f update.patch"		remotecmd="drawterm -G -h $host -u $user -a $auth -c "		;;	linux|macos)		makeprg=make		vcs=git		buildcmd="cd '$wrkdir/mc' && $setpath && git reset --hard &&			./configure --prefix=$wrkdir/root &&			$makeprg bootstrap && $makeprg install && git pull &&			$makeprg genbootstrap && $vcs diff > update.patch" 		;;	*)		buildcmd="cd '$wrkdir/mc' && $setpath && git reset --hard &&			./configure --prefix=$wrkdir/root &&			$makeprg bootstrap && $makeprg install && git pull &&			$makeprg genbootstrap && $vcs diff > update.patch"		;;	esac 	$remotecmd "rm -f $wrkdir/mc/update.patch"	$remotecmd "$buildcmd"	$remotecmd "$showpatch" | patch -p1 || true} while IFS= read -r desc; do	if ! echo $desc | grep '^#'; then		build $desc < /dev/null		built=1	fidone < $BUILDHOSTS if [ -z "$built" ]; then	1>&2 echo "WARNING: no hosts to build on: Please define hosts in $BUILDHOSTS, or set \$BUILDHOSTS"fi