stubdom build fails with external git directories

[Olaf Hering <olaf@aepfle.de>]

I tried to improve my rebuild times after 'git clean -dffx', which wipes
all and everything from the xen source dir, including external git
clones. First step was to use a proxy for the stubdom files. Then I
tried to use local copies of qemu from xenbits.xen.org. The latter fails
if I just point QEMU_TRADITIONAL_URL to the copy. For some reason xen
does an out-of-tree build of qemu-xen-unstable.git, and stores the
result in tools/qemu-xen-traditional-dir/. Then stubdom tries to symlink
to that tree, but fails to find any source files in
stubdom/Makefile:ioemu/linkfarm.stamp. The source files are in
QEMU_TRADITIONAL_URL instead of tools/qemu-xen-traditional-dir/.

Any ideas how to fix that? Maybe do a similar 'test -d' as its done in
qemu-xen-traditional-dir-find?  My build wrapper is below.

A workaround is likely to use QEMU_TRADITIONAL_URL=file:///dir instead
of QEMU_TRADITIONAL_URL=/dir to force a git clone into the xen source
tree.

Olaf

-- 
#!/bin/bash
set -ex
unset LANG
unset ${!LC_*}
proxy=http://proxy:3128
bug=upstream
cpus=`grep -Ec 'cpu[0-9]' /proc/stat || echo 1`
suffix="-${bug}"
topdir=~/work/github/olafhering
prefix=/opt/xen/staging${suffix}
libdir=${prefix}/lib64
sysconfdir=${prefix}/etc
OVMF_UPSTREAM_URL=~/work/src/xen.org/ovmf.git
QEMU_UPSTREAM_URL=~/work/src/xen.org/qemu-xen-upstream.git
QEMU_TRADITIONAL_URL=~/work/src/xen.org/qemu-xen-traditional.git
SEABIOS_UPSTREAM_URL=~/work/src/xen.org/seabios.git
test -d "${topdir}" || mkdir "${topdir}"
cd "${topdir}"
cd xen
export http_proxy=$proxy
export https_proxy=$proxy
export ftp_proxy=$proxy
cmd=$1
shift
case "${cmd}" in
	-c)
	time \
		env \
		xLDFLAGS="-Wl,-rpath,${libdir}" \
		./configure \
		--enable-docs \
		--enable-stubdom \
		--enable-xen \
		--enable-tools \
		--enable-rpath \
		--disable-ovmf \
		--disable-systemd \
		--prefix=${prefix} \
		--sysconfdir=${sysconfdir} \
		"$@"
	;;
	-b)
	rm -rf dist/install
	time \
		make \
			-j ${cpus} \
			rpmball \
			debug=n \
			V=1 \
			OVMF_UPSTREAM_URL=$OVMF_UPSTREAM_URL \
			QEMU_UPSTREAM_URL=$QEMU_UPSTREAM_URL \
			QEMU_TRADITIONAL_URL=$QEMU_TRADITIONAL_URL \
			SEABIOS_UPSTREAM_URL=$SEABIOS_UPSTREAM_URL \
			OCAMLDESTDIR=$PWD/dist/install/${libdir}/ocaml \
			BOOT_DIR=${prefix}/boot \
			EFI_DIR=${libdir}/efi \
			PKG_SUFFIX=${suffix} \
			XEN_VENDORVERSION=`date +.%s` \
			"$@"
		for rpm in `for i in dist/*.rpm
		do
			rpm -qp --qf "%{BUILDTIME}-$i\n" $i
		done | sort -nr`
		do
			echo $rpm
			pkg=${rpm#*-}
			mv -v ${pkg} dist/`rpm -qp --qf %{NAME}.rpm ${pkg}`
			break
		done
	;;
	-anonymi)
		rsync -avP dist/xen${suffix}.rpm root@anonymi:
	;;
	-ss)
		rsync -avP dist/xen${suffix}.rpm root@10.121.8.246:
	;;
esac