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empdebuild

Revision 4933, 17.7 kB (checked in by codehelp, 4 months ago)
emdebuild should have/pass along more dpkg-buildpackage options (Closes: #497816) - add -- support to emdebuild and pass-down support to calling scripts.
Property svn:executable set to ``*

Line
1	#!/bin/bash
2	set -e
3	# empdebuild : emdebian version of pdebuild.
4	#
5	# Emdebian chroot builder - initially supporting the creation of a
6	# chroot capable of running emdebian-tools to reduce the number of
7	# cross dependencies that need to be installed on the build system.
8	#
9	# Copyright (C) 2006-2008 Neil Williams <codehelp@debian.org>
10	#
11	# This package is free software; you can redistribute it and/or modify
12	# it under the terms of the GNU General Public License as published by
13	# the Free Software Foundation; either version 3 of the License, or
14	# (at your option) any later version.
15	#
16	# This program is distributed in the hope that it will be useful,
17	# but WITHOUT ANY WARRANTY; without even the implied warranty of
18	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	# GNU General Public License for more details.
20	#
21	# You should have received a copy of the GNU General Public License
22	# along with this program. If not, see <http://www.gnu.org/licenses/>.
23	#
24	# Note 1: Most configuration values are calculated, not taken from the command line
25	# or an rc file.
26	# Note 2: emdebuild creates a build log for us - just the output of dpkg-buildpackage,
27	# not the rest of the chroot operations.
28
29	. /usr/lib/emdebian-tools/empbuilderlib
30
31	SUITE=unstable
32
33	function usagehelp () {
34	# print out help message
35	cat <<EOF
36	empdebuild - cross-building chroot Emdebian package builder
37	version $OURVERSION
38
39	Syntax: sudo empdebuild [OPTIONS] [COMMAND]
40	Only one command can be actioned at any one time.
41	Options must precede the command to take effect.
42
43	Commands:
44	-?\|-h\|--help\|-version: print this help message and exit
45	--create\|create: create a cross-building base .tgz for unstable
46	--update\|update: update the base .tgz and save changes
47	--build\|build: build the current package in the chroot
48	(needs to be run in the top source directory)
49	--autobuild\|autobuild PACKAGE: build the specified package in the chroot
50	(used by the autobuilder)
51	--login\|login: Login to the chroot to run tests or fix problems.
52	--clean\|clean: Clean up all build sub directories.
53
54	Options:
55	--arch: Override the default cross-build architecture (from dpkg-cross).
56	--testing: Override the default suite (unstable) to use testing
57	instead. This is a fallback option for use during
58	toolchain transitions in unstable.
59	--save-after-login: Allow changes made within the chroot login to persist.
60	--login-after-fail: In case of error, try to log in to the new chroot.
61	-- OPTIONS dpkg-buildpackage options
62	(except: -uc -us [default] -a [ignored])
63
64	Although based on pbuilder, empdebuild cannot support the full range of
65	pbuilder commands or options. In addition, creating a cross-building chroot for
66	testing involves a variety of changes to the creation of a similar chroot for
67	unstable so testing is only supported as an override, rather than using the
68	pbuilder method of a --distribution option.
69
70	When testing local changes made with emdebuild, use 'empdebuild --build' which
71	will use the .diff.gz from the current working directory.
72
73	Once the local changes are complete and are committed to Emdebian SVN, you
74	can use 'empdebuild --autobuild PACKAGE' to ensure that the patches are
75	usable for the autobuilder.
76
77	Options to dpkg-buildpackage can be specified after the -- option.
78	Note that '-uc' and '-us' are set by default and '-a' will be ignored
79	(because arch is controlled separately). Options are passed down to
80	emdebuild unchanged.
81
82	EOF
83	}
84
85	function get_cross_depends ()
86	{
87	# derived from checkbuilddep_internal
88	# Use this function to fulfill the cross-dependencies
89	DEBIAN_XCONTROL=debian/xcontrol
90	BD_REGEXP="build-depends"
91
92	local INSTALLPKG
93	local INSTALLPKGLIST
94	local INSTALLPKGMULTI
95	local CURRENTREALPKGNAME
96	if [ ! -f ${DEBIAN_XCONTROL} ]; then
97	return
98	fi
99	echo " -> updating apt-cross cache"
100	chroot $BUILDPLACE /usr/bin/apt-cross -a $ARCH -S $SUITE -u
101	echo " -> Attempting to parse the cross-build dependencies"
102	# read debian/xcontrol
103	for INSTALLPKGMULTI in $(cat ${DEBIAN_XCONTROL} \| \
104	awk '
105	BEGIN{source=1}
106	/^$/ {source=0}
107	/^Source:/ {source=1}
108	/^[^ ]*:/ {p=0}
109	tolower($0) ~ /^'"${BD_REGEXP}"':/ {p=1}
110	{if(p && source) {print $0}}' \| \
111	sed 's/^[^: ]*://' \| \
112	tr " " "/" \| \
113	awk 'BEGIN{RS=","} {print}'); do
114	echo " -> Considering cross-build-dep$(echo "$INSTALLPKGMULTI" \| tr "/" " " )"
115	# parse the list - removing commas etc.
116	for INSTALLPKG in $(echo "$INSTALLPKGMULTI" \| \
117	awk 'BEGIN{RS="\|"} {print}'); do
118	CURRENTREALPKGNAME=$(echo "$INSTALLPKG" \| sed -e 's/^[/]//' -e 's/[[/(].//') #)# syntax hack
119	INSTALLPKGLIST="${INSTALLPKGLIST} ${CURRENTREALPKGNAME}"
120	done; # end parse list
121	done; # end parse debian/xcontrol
122	if [ -n "${INSTALLPKGLIST}" ]; then
123	echo " -> Installing ${INSTALLPKGLIST}"
124	chroot $BUILDPLACE /usr/bin/apt-cross -q -k -a $ARCH --install ${INSTALLPKGLIST}
125	save_aptcrosscache
126	fi
127	echo " -> Finished parsing the cross build-deps"
128	}
129
130	function update_emchroot ()
131	{
132	if [ $SUITE == testing ]; then
133	BASETGZ="${WORKDIR}/emdebian-testing.tgz"
134	SUITE=testing
135	echo "Updating the embootstrap testing chroot"
136	else
137	BASETGZ="$WORKDIR/emdebian.tgz"
138	fi
139	extractembuildplace
140	echo "File extracted to: $BUILDPLACE"
141	echo ""
142	echo " -> upgrading packages"
143	disable_apt_recommends
144	# force the sources list - a bit of a hack really.
145	# TODO this should be configurable - emdebian-tools will add a primary later.
146	cp /usr/share/emdebian-tools/emsources.$SUITE $BUILDPLACE/etc/apt/sources.list
147	if echo "/usr/bin/apt-get update" \| chroot $BUILDPLACE /bin/sh; then
148	:
149	else
150	# if apt failed (maybe update needs to be run), save so far and exit cleanly
151	save_aptcache
152	# copy out the failed build here first.
153	umountproc
154	cleanbuildplace
155	exit 1;
156	fi
157	echo " -> updating apt-cross cache for $SUITE"
158	if echo "/usr/bin/apt-cross -a $ARCH -S $SUITE -u" \| chroot $BUILDPLACE /bin/sh; then
159	:
160	else
161	# if apt failed (maybe update needs to be run), save so far and exit cleanly
162	save_aptcache
163	umountproc
164	cleanbuildplace
165	exit 1;
166	fi
167	recover_aptcache
168	# TODO persistent problems with the toolchains mean this needs to be optional.
169	if echo "DEBIAN_FRONTEND=noninteractive /usr/bin/apt-get $OPTIONS -y --force-yes upgrade" \| chroot $BUILDPLACE /bin/sh; then
170	:
171	else
172	# if apt failed (maybe update needs to be run), save so far and exit cleanly
173	save_aptcache
174	umountproc
175	cleanbuildplace
176	exit 1;
177	fi
178	if echo "DEBIAN_FRONTEND=noninteractive /usr/bin/apt-get $OPTIONS -y --force-yes dist-upgrade" \| chroot $BUILDPLACE /bin/sh; then
179	:
180	else
181	# if apt failed (maybe update needs to be run), save so far and exit cleanly
182	save_aptcache
183	umountproc
184	cleanbuildplace
185	exit 1;
186	fi
187	chroot $BUILDPLACE /usr/bin/apt-get $OPTIONS -y --force-yes install emdebian-tools \|\| true
188	chroot $BUILDPLACE /usr/bin/apt-get $OPTIONS --purge -y --force-yes autoremove \|\| true
189	autoclean_aptcache
190	save_aptcache
191	echo " -> updating devscripts configuration"
192	if [ -f /home/$SUDO_USER/.devscripts ]; then
193	cp /home/$SUDO_USER/.devscripts $BUILDPLACE/home/$SUDO_USER/.devscripts
194	fi
195	VAL=`chroot $BUILDPLACE hostname -f 2>&1`
196	if [ "$VAL" != "" ]; then
197	echo " -> updating /etc/hosts"
198	cp /etc/hosts $BUILDPLACE/etc/hosts
199	fi
200	# sometimes this returns non-zero
201	if echo "$COLOUR ARCH=$ARCH /usr/bin/emsetup --arch $ARCH --yes" \| chroot $BUILDPLACE /bin/sh; then
202	:
203	fi
204	umountproc \|\| true
205	chroot $BUILDPLACE /usr/bin/apt-get clean \|\| true
206	create_emdebiantgz
207	}
208
209	# very similar to emchrootbuild but calls emsource inside the
210	# chroot instead of copying the source in from outside.
211	# i.e. autobuilder mode (so it tries to be quiet).
212	function empautobuild()
213	{
214	if [ $SUITE == testing ]; then
215	BASETGZ="${WORKDIR}/emdebian-testing.tgz"
216	SUITE=testing
217	echo "Building in the embootstrap testing chroot"
218	else
219	BASETGZ="$WORKDIR/emdebian.tgz"
220	fi
221	. /usr/lib/pbuilder/pbuilder-buildpackage-funcs
222	PACKAGE=$1
223	BUILDRESULTUID="${BUILDRESULTUID:-${SUDO_UID:-0}}"
224	BUILDRESULTGID="${BUILDRESULTGID:-${SUDO_GID:-0}}"
225	INITIAL=`echo $PACKAGE \| cut -b1`
226	TRUNK="$INITIAL/${PACKAGE}/trunk"
227
228	echobacktime
229	extractembuildplace
230	echo "File extracted to: $BUILDPLACE"
231	echo ""
232	recover_aptcache
233	createbuilduser
234	if [ -f "/etc/devscripts.conf" ]; then
235	cp /etc/devscripts.conf $BUILDPLACE/etc/devscripts.conf
236	fi
237	if [ -f "/home/$SUDO_USER/.devscripts" ]; then
238	mkdir -p $BUILDPLACE/home/$SUDO_USER/
239	cp /home/$SUDO_USER/.devscripts $BUILDPLACE/home/$SUDO_USER/.devscripts
240	fi
241
242	COLOUR=
243	if [ $ANSI_COLORS_DISABLED ]; then
244	COLOUR=ANSI_COLORS_DISABLED=1
245	fi
246	echo "Checking the Emdebian toolchain"
247	# fails with non-zero if no toolchain is found
248	if echo "$COLOUR /usr/bin/emsetup -q --arch $ARCH --report" \| chroot $BUILDPLACE /bin/sh; then
249	:
250	else
251	umountproc
252	cleanbuildplace
253	exit 1;
254	fi
255	if echo "$COLOUR ARCH=$ARCH emsource -q -a $ARCH -b --build-dep $PACKAGE $EM_DPKG_OPTS" \| chroot $BUILDPLACE /bin/sh; then
256	:
257	else
258	echo " -> emsource -b failed"
259	if [ "${LOGIN_AFTER_FAIL}" = "yes" ]; then
260	echo " -> Logging into the chroot"
261	echobacktime
262	chroot $BUILDPLACE /bin/sh
263	save_aptcache
264	umountproc
265	cleanbuildplace
266	exit 1;
267	fi
268	save_aptcache
269	umountproc
270	cleanbuildplace
271	exit 1;
272	fi
273	if [ $? -ne 0 ]; then
274	echo " -> emsource -b failed"
275	if [ "${LOGIN_AFTER_FAIL}" = "yes" ]; then
276	echo " -> Logging into the chroot"
277	echobacktime
278	chroot $BUILDPLACE /bin/sh
279	save_aptcache
280	umountproc
281	cleanbuildplace
282	exit 1;
283	fi
284	fi
285	FULLPATH="$BUILDPLACE/trunk/$TRUNK/"
286	FULLPATH=`echo $FULLPATH \| tr -s \/`
287	PKGRESULT="${BUILDRESULT}${INITIAL}/${PACKAGE}/trunk"
288	echo "Copying build results to ${PKGRESULT}"
289	mkdir -p "$PKGRESULT"
290	if [ -d "${PKGRESULT}" ]; then
291	chown -R "${BUILDRESULTUID}:${BUILDRESULTGID}" "${BUILDRESULT}/"*
292	cp -p "${FULLPATH}"/* "${PKGRESULT}" 2>/dev/null \|\| true
293	chown -R "${BUILDRESULTUID}:${BUILDRESULTGID}" "${BUILDRESULT}/"*
294	else
295	echo "E: BUILDRESULT=[$BUILDRESULT] is not a directory." >&2
296	fi
297	save_aptcache
298	umountproc
299	cleanbuildplace
300	echobacktime
301	}
302
303	function emchrootbuild()
304	{
305	if [ $SUITE == testing ]; then
306	BASETGZ="${WORKDIR}/emdebian-testing.tgz"
307	SUITE=testing
308	echo "Building in the embootstrap testing chroot"
309	else
310	BASETGZ="$WORKDIR/emdebian.tgz"
311	fi
312	. /usr/lib/pbuilder/pbuilder-buildpackage-funcs
313
314	BUILDRESULTUID="${BUILDRESULTUID:-${SUDO_UID:-0}}"
315	BUILDRESULTGID="${BUILDRESULTGID:-${SUDO_GID:-0}}"
316
317	while ! test -d ./debian -o "$(pwd)" = "$WORKDIR" ; do
318	cd ..;
319	done
320	if test ! -d ./debian; then
321	echo "Cannot find ./debian dir"
322	cleanbuildplace
323	exit 1
324	fi;
325
326	PKG_SOURCENAME=`dpkg-parsechangelog\|sed -n 's/^Source: //p'`
327	PKG_VERSION=`dpkg-parsechangelog\|sed -n 's/^Version: $.*:\\|$//p'`
328	HOST_ARCH=`dpkg-architecture -qDEB_HOST_ARCH`
329
330	echo "Building ${PKG_SOURCENAME} ${PKG_VERSION} on ${HOST_ARCH} for $ARCH"
331	INITIAL=`echo $PKG_SOURCENAME \| cut -b1`
332	PKG=`basename \$PWD`;
333	TRUNK="$INITIAL/${PKG_SOURCENAME}/trunk"
334	SVN="$TRUNK/${PKG}"
335	if [ "$LOGIN_AFTER_FAIL" == "yes" ]; then
336	echo " -> will attempt to login after build failure"
337	fi
338	echo " -> source location: trunk/$SVN"
339	# get the Debian .dsc
340	DEB_VER=`echo $PKG_VERSION \| sed -n 's/em[0-9]*$//p'`
341	if [ "$DEB_VER" == "" ]; then
342	echo "$PKG_VERSION is not an Emdebian version string."
343	cleanbuildplace
344	exit 1;
345	fi
346	DSC="${PKG_SOURCENAME}_${DEB_VER}.dsc"
347	if [ ! -f "../$DSC" ]; then
348	echo "Cannot find ../$DSC"
349	cleanbuildplace
350	exit 1;
351	fi
352	echo " -> using $DSC"
353
354	# don't duplicate the downloads made by emsource
355	DIFFS=`find ../ -name emdebian-*\.patch`
356	DEBDIFFS=`find ../ -maxdepth 1 -name debian-patch*`
357	OLDSRC="$PKG_SOURCENAME.old"
358	echobacktime
359	extractembuildplace
360	echo "File extracted to: $BUILDPLACE"
361	echo ""
362	recover_aptcache
363	createbuilduser
364
365	if [ -f "/etc/devscripts.conf" ]; then
366	cp /etc/devscripts.conf $BUILDPLACE/etc/devscripts.conf
367	fi
368	if [ -f "/home/$SUDO_USER/.devscripts" ]; then
369	mkdir -p $BUILDPLACE/home/$SUDO_USER/
370	cp /home/$SUDO_USER/.devscripts $BUILDPLACE/home/$SUDO_USER/.devscripts
371	fi
372
373	COLOUR=
374	if [ $ANSI_COLORS_DISABLED ]; then
375	COLOUR=ANSI_COLORS_DISABLED=1
376	fi
377	echo "Checking the Emdebian toolchain"
378	# fails with non-zero if no toolchain is found
379	if echo "$COLOUR /usr/bin/emsetup --arch $ARCH --report" \| chroot $BUILDPLACE /bin/sh; then
380	:
381	else
382	umountproc
383	cleanbuildplace
384	exit 1;
385	fi
386	echo "Copying Debian source"
387	chroot $BUILDPLACE mkdir -p trunk/$TRUNK
388	copydsc "../$DSC" "$BUILDPLACE/trunk/${TRUNK}/"
389	chroot $BUILDPLACE /usr/bin/dpkg-source -x trunk/${TRUNK}/$DSC trunk/$SVN
390
391	echo "Applying Emdebian changes"
392	for PATCH in $DEBDIFFS
393	do
394	if [ ! -d /trunk/$SVN/debian/patches/ ]; then
395	echo "Creating debian/patches directory"
396	mkdir -p $BUILDPLACE/trunk/$SVN/debian/patches/
397	fi
398	NAME=`echo $PATCH \| sed -e 's/..\/debian-patch-//'`
399	echo "Copying $PATCH to /trunk/$SVN/debian/patches/$NAME"
400	cp "$PATCH" "$BUILDPLACE/trunk/$SVN/debian/patches/$NAME"
401	done
402	for PATCH in $DIFFS
403	do
404	cp "$PATCH" "$BUILDPLACE/trunk/$TRUNK"
405	if echo "cd /trunk/$SVN; patch -p1 < $PATCH" \| chroot $BUILDPLACE /bin/sh; then
406	:
407	else
408	umountproc
409	cleanbuildplace
410	exit 1;
411	fi
412	done
413
414	# only check for dependencies AFTER debian/control has been patched for Emdebian.
415	echo " -> installing build dependencies for $PKG_SOURCENAME"
416	checkembuilddep
417	# new function to parse and install cross-depends.
418	# read debian/xcontrol, pass Build-Cross-Depends to apt-cross -i
419	get_cross_depends
420	save_aptcache
421	echo " -> copying ../$OLDSRC"
422	cp -r "../$OLDSRC" "$BUILDPLACE/trunk/$TRUNK"
423	echo "Running emdebuild -a $ARCH $EM_DPKG_OPTS "
424	COLOUR=
425	if [ $ANSI_COLORS_DISABLED ]; then
426	COLOUR=ANSI_COLORS_DISABLED=1
427	fi
428	if echo "cd /trunk/$SVN; $COLOUR ARCH=$ARCH emdebuild -a $ARCH $EM_DPKG_OPTS" \| chroot $BUILDPLACE /bin/sh; then
429	:
430	else
431	echo " -> emdebuild failed"
432	if [ "${LOGIN_AFTER_FAIL}" = "yes" ]; then
433	echo " -> Logging into the chroot"
434	echo " -> Build directory: /trunk/$SVN"
435	echobacktime
436	chroot $BUILDPLACE /bin/sh
437	save_aptcache
438	umountproc
439	cleanbuildplace
440	exit 1;
441	fi
442	save_aptcache
443	umountproc
444	cleanbuildplace
445	exit 1;
446	fi
447	if [ $? -ne 0 ]; then
448	echo " -> emdebuild failed"
449	if [ "${LOGIN_AFTER_FAIL}" = "yes" ]; then
450	echo " -> Logging into the chroot"
451	echo " -> Build directory: /trunk/$SVN"
452	echobacktime
453	chroot $BUILDPLACE /bin/sh
454	save_aptcache
455	umountproc
456	cleanbuildplace
457	exit 1;
458	fi
459	fi
460	FULLPATH="$BUILDPLACE/trunk/$TRUNK/"
461	FULLPATH=`echo $FULLPATH \| tr -s \/`
462	PKGRESULT="${BUILDRESULT}${INITIAL}/${PKG_SOURCENAME}/trunk"
463	echo "Copying build results to ${PKGRESULT}"
464	mkdir -p "$PKGRESULT"
465	if [ -d "${PKGRESULT}" ]; then
466	chown -R "${BUILDRESULTUID}:${BUILDRESULTGID}" "${BUILDRESULT}/"*
467	cp -p "${FULLPATH}"/* "${PKGRESULT}" 2>/dev/null \|\| true
468	chown -R "${BUILDRESULTUID}:${BUILDRESULTGID}" "${BUILDRESULT}/"*
469	else
470	echo "E: BUILDRESULT=[$BUILDRESULT] is not a directory." >&2
471	fi
472	CHANGES=`find $PKGRESULT -name \*${PKG_VERSION}_${ARCH}.changes`
473	echo " -> .changes file : ${CHANGES}"
474	EMDSC=`find $PKGRESULT -name \*${PKG_VERSION}.dsc`
475	echo " -> .dsc file : ${EMDSC}"
476	EMDEBS=`find $PKGRESULT -name \${PKG_VERSION}deb \| grep -c deb`
477	echo " -> ${EMDEBS} packages built."
478	save_aptcache
479	umountproc
480	cleanbuildplace
481	echobacktime
482	}
483
484	function emlogin()
485	{
486	if [ $SUITE == testing ]; then
487	BASETGZ="${WORKDIR}/emdebian-testing.tgz"
488	echo "Logging into the embootstrap testing chroot"
489	else
490	BASETGZ="$WORKDIR/emdebian.tgz"
491	fi
492	extractembuildplace
493	recover_aptcache
494	echo " -> entering the shell"
495	echo "File extracted to: $BUILDPLACE"
496	# login should be as close to failsafe as possible so do v.little else.
497	chroot $BUILDPLACE /bin/sh \|\| true
498	save_aptcache
499	umountproc
500	# saving the buildplace afterwards
501	if [ "${SAVE_AFTER_LOGIN}" = "yes" ]; then
502	echo " -> Saving the results, modifications to this session will persist"
503	chroot $BUILDPLACE /usr/bin/apt-get clean \|\| true
504	create_emdebiantgz
505	fi
506	cleanbuildplace
507	}
508
509	# test for sudo - normally empdebuild is installed in /usr/sbin so this
510	# test is really only for SVN users.
511	# make sure sudo is in use.
512	# bash cannot seem to do this when set -e is enabled
513	# because grep returns non-zero on a non-match
514	# so I use perl. :-)
515	ISSUDOSET=`perl -e '$e=\`printenv\`; ($e =~ /SUDO_USER/) ? print "yes" : print "no";'`
516	if [ $ISSUDOSET == "no" ] ; then
517	AREWEROOT=`perl -e '$e=\`printenv\`; ($e =~ /LOGNAME=root/) ? print "yes" : print "no";'`
518	if [ $AREWEROOT == "no" ]; then
519	echo "empdebuild needs to be run under sudo or as root."
520	exit 2
521	fi
522	fi
523
524	if [ ! $1 ];then
525	usagehelp
526	exit;
527	fi
528
529	USEDEVPTS="yes"
530	USEPROC="yes"
531
532	while [ -n "$1" ]; do
533	case "$1" in
534	--help\|-h\|-?\|--version)
535	usagehelp
536	exit;
537	;;
538	-a\|--arch)
539	shift
540	ARCH=$1
541	# chomp the argument to --arch
542	shift
543	;;
544	--testing)
545	shift
546	SUITE=testing
547	;;
548	--create\|create)
549	shift;
550	checkarch
551	createemchroot
552	exit;
553	;;
554	--update\|update)
555	shift;
556	checkarch
557	update_emchroot
558	exit;
559	;;
560	--build\|build)
561	shift;
562	checkarch
563	emchrootbuild
564	exit;
565	;;
566	--autobuild\|autobuild)
567	shift;
568	PACKAGE=$1
569	shift;
570	checkarch
571	empautobuild $PACKAGE
572	exit;
573	;;
574	--save-after-login)
575	shift
576	SAVE_AFTER_LOGIN="yes"
577	;;
578	--login-after-fail)
579	shift
580	LOGIN_AFTER_FAIL="yes"
581	;;
582	--login\|login)
583	shift
584	checkarch
585	emlogin
586	exit;
587	;;
588	--clean\|clean)
589	shift
590	echo "Trying to ensure crashed chroots are unmounted"
591	CRASH=`mount \| grep "$WORKDIR" \| cut -d' ' -f3`
592	if [ "$CRASH" ]; then
593	echo "Trying to ensure crashed chroots are unmounted"
594	mount \| grep "$WORKDIR" \| cut -d' ' -f3 \| xargs umount \|\| true
595	fi
596	echo "Cleaning $BASEBUILDPLACE"
597	clean_subdirectories $BASEBUILDPLACE
598	# if debootstrap fails, we start again so remove the stamp.
599	if [ -f $WORKDIR/stamp-debootstrap ]; then
600	rm $WORKDIR/stamp-debootstrap
601	fi
602	exit;
603	;;
604	--)
605	while [ -n "$1" ]
606	do
607	EM_DPKG_OPTS+="$1 "
608	shift
609	done
610	break
611	;;
612	*)
613	echo "Unrecognised option: $1"
614	echo
615	usagehelp
616	exit;
617	;;
618	esac
619	done

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