def recalculate(self, fetch_stale_interfaces = True):
		"""@deprecated: see L{solve_with_downloads} """
		self.stale_feeds = set()

		host_arch = self.target_arch
		if self.src:
			host_arch = arch.SourceArchitecture(host_arch)
		self.solver.solve(self.root, host_arch)

		if self.network_use == network_offline:
			fetch_stale_interfaces = False

		blockers = []
		for f in self.solver.feeds_used:
			if f.startswith('/'): continue
			feed = iface_cache.get_feed(f)
			if feed is None or feed.last_modified is None:
				self.download_and_import_feed_if_online(f)	# Will start a download
			elif self.is_stale(feed):
				debug(_("Adding %s to stale set"), f)
				self.stale_feeds.add(iface_cache.get_interface(f))	# Legacy API
				if fetch_stale_interfaces:
					self.download_and_import_feed_if_online(f)	# Will start a download

		for w in self.watchers: w()

		return blockers
Exemple #2
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	def _main_feed(self):
		import warnings
		warnings.warn("use the feed instead", DeprecationWarning, 3)
		from zeroinstall.injector import policy
		iface_cache = policy.get_deprecated_singleton_config().iface_cache
		feed = iface_cache.get_feed(self.uri)
		if feed is None:
			return _dummy_feed
		return feed
def _manage_feeds(options, args):
	from zeroinstall.injector import writer
	from zeroinstall.injector.handler import Handler
	from zeroinstall.injector.policy import Policy
	handler = Handler(dry_run = options.dry_run)
	if not args: raise UsageError()
	for x in args:
		print _("Feed '%s':") % x + '\n'
		x = model.canonical_iface_uri(x)
		policy = Policy(x, handler)
		if options.offline:
			policy.network_use = model.network_offline

		feed = iface_cache.get_feed(x)
		if policy.network_use != model.network_offline and policy.is_stale(feed):
			blocker = policy.fetcher.download_and_import_feed(x, iface_cache.iface_cache)
			print _("Downloading feed; please wait...")
			handler.wait_for_blocker(blocker)
			print _("Done")

		interfaces = policy.get_feed_targets(x)
		for i in range(len(interfaces)):
			feed = interfaces[i].get_feed(x)
			if feed:
				print _("%(index)d) Remove as feed for '%(uri)s'") % {'index': i + 1, 'uri': interfaces[i].uri}
			else:
				print _("%(index)d) Add as feed for '%(uri)s'") % {'index': i + 1, 'uri': interfaces[i].uri}
		print
		while True:
			try:
				i = raw_input(_('Enter a number, or CTRL-C to cancel [1]: ')).strip()
			except KeyboardInterrupt:
				print
				raise SafeException(_("Aborted at user request."))
			if i == '':
				i = 1
			else:
				try:
					i = int(i)
				except ValueError:
					i = 0
			if i > 0 and i <= len(interfaces):
				break
			print _("Invalid number. Try again. (1 to %d)") % len(interfaces)
		iface = interfaces[i - 1]
		feed = iface.get_feed(x)
		if feed:
			iface.extra_feeds.remove(feed)
		else:
			iface.extra_feeds.append(model.Feed(x, arch = None, user_override = True))
		writer.save_interface(iface)
		print '\n' + _("Feed list for interface '%s' is now:") % iface.get_name()
		if iface.feeds:
			for f in iface.feeds:
				print "- " + f.uri
		else:
			print _("(no feeds)")
Exemple #4
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    def is_stale(self):
        if self.policy is None:
            return False

        if self.policy.solver.feeds_used is None:
            # solve it at forst
            self.policy.need_download()

        for url in self.policy.solver.feeds_used:
            feed = iface_cache.get_feed(url)
            if self.policy.is_stale(feed):
                return True

        return False
		def finish():
			from . import xdgutils
			iface_uri = model.canonical_iface_uri(uri.get_text())
			iface = iface_cache.get_interface(iface_uri)
			feed = iface_cache.get_feed(iface_uri)

			try:
				icon_path = iface_cache.get_icon_path(iface)
				xdgutils.add_to_menu(feed, icon_path, categories[category.get_active()])
			except SafeException as ex:
				box = gtk.MessageDialog(self.window, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, str(ex))
				box.run()
				box.destroy()
			else:
				self.window.destroy()
Exemple #6
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        def finish():
            from . import xdgutils
            iface_uri = model.canonical_iface_uri(uri.get_text())
            iface = iface_cache.get_interface(iface_uri)
            feed = iface_cache.get_feed(iface_uri)

            try:
                icon_path = iface_cache.get_icon_path(iface)
                xdgutils.add_to_menu(feed, icon_path,
                                     categories[category.get_active()])
            except SafeException as ex:
                box = gtk.MessageDialog(self.window, gtk.DIALOG_MODAL,
                                        gtk.MESSAGE_ERROR, gtk.BUTTONS_OK,
                                        str(ex))
                box.run()
                box.destroy()
            else:
                self.window.destroy()
		def update_details_page():
			iface_uri = model.canonical_iface_uri(uri.get_text())
			iface = iface_cache.get_interface(iface_uri)
			feed = iface_cache.get_feed(iface_uri)
			assert feed, iface_uri
			about.set_text('%s - %s' % (feed.get_name(), feed.summary))
			icon_path = iface_cache.get_icon_path(iface)
			from zeroinstall.gtkui import icon
			icon_pixbuf = icon.load_icon(icon_path)
			if icon_pixbuf:
				icon_widget.set_from_pixbuf(icon_pixbuf)

			feed_category = None
			for meta in feed.get_metadata(XMLNS_IFACE, 'category'):
				feed_category = meta.content
				break
			if feed_category:
				i = 0
				for row in categories:
					if row.lower() == feed_category.lower():
						category.set_active(i)
						break
					i += 1
			self.window.set_response_sensitive(_RESPONSE_PREV, True)
Exemple #8
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        def update_details_page():
            iface_uri = model.canonical_iface_uri(uri.get_text())
            iface = iface_cache.get_interface(iface_uri)
            feed = iface_cache.get_feed(iface_uri)
            assert feed, iface_uri
            about.set_text('%s - %s' % (feed.get_name(), feed.summary))
            icon_path = iface_cache.get_icon_path(iface)
            from zeroinstall.gtkui import icon
            icon_pixbuf = icon.load_icon(icon_path)
            if icon_pixbuf:
                icon_widget.set_from_pixbuf(icon_pixbuf)

            feed_category = None
            for meta in feed.get_metadata(XMLNS_IFACE, 'category'):
                feed_category = meta.content
                break
            if feed_category:
                i = 0
                for row in categories:
                    if row.lower() == feed_category.lower():
                        category.set_active(i)
                        break
                    i += 1
            self.window.set_response_sensitive(_RESPONSE_PREV, True)
Exemple #9
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def do_build_internal(options, args):
    """build-internal"""
    # If a sandbox is being used, we're in it now.
    import getpass, socket

    buildenv = BuildEnv()
    sels = buildenv.get_selections()

    builddir = os.path.realpath('build')
    ensure_dir(buildenv.metadir)

    build_env_xml = join(buildenv.metadir, 'build-environment.xml')

    buildenv_doc = sels.toDOM()

    # Create build-environment.xml file
    root = buildenv_doc.documentElement
    info = buildenv_doc.createElementNS(XMLNS_0COMPILE, 'build-info')
    root.appendChild(info)
    info.setAttributeNS(None, 'time', time.strftime('%Y-%m-%d %H:%M').strip())
    info.setAttributeNS(None, 'host', socket.getfqdn())
    info.setAttributeNS(None, 'user', getpass.getuser())
    info.setAttributeNS(None, 'arch', '%s-%s' % (uname[0], uname[4]))
    stream = file(build_env_xml, 'w')
    buildenv_doc.writexml(stream, addindent="  ", newl="\n")
    stream.close()

    # Create local binary interface file.
    # We use the main feed for the interface as the template for the name,
    # summary, etc (note: this is not necessarily the feed that contained
    # the source code).
    master_feed = iface_cache.get_feed(buildenv.interface)
    src_impl = buildenv.chosen_impl(buildenv.interface)
    write_sample_feed(buildenv, master_feed, src_impl)

    # Check 0compile is new enough
    min_version = model.parse_version(
        src_impl.attrs.get(XMLNS_0COMPILE + ' min-version', None))
    if min_version and min_version > model.parse_version(__main__.version):
        raise SafeException(
            "%s-%s requires 0compile >= %s, but we are only version %s" %
            (master_feed.get_name(), src_impl.version,
             model.format_version(min_version), __main__.version))

    # Create the patch
    patch_file = join(buildenv.metadir, 'from-%s.patch' % src_impl.version)
    if buildenv.user_srcdir:
        with open(patch_file, 'w') as stream:
            # (ignore errors; will already be shown on stderr)
            try:
                subprocess.call(["diff", "-urN", buildenv.orig_srcdir, 'src'],
                                stdout=stream)
            except OSError as ex:
                print >> sys.stderr, "WARNING: Failed to run 'diff': ", ex
        if os.path.getsize(patch_file) == 0:
            os.unlink(patch_file)
    elif os.path.exists(patch_file):
        os.unlink(patch_file)

    env('BUILDDIR', builddir)
    env('DISTDIR', buildenv.distdir)
    env('SRCDIR', buildenv.user_srcdir or buildenv.orig_srcdir)
    env('BINARYFEED', buildenv.local_iface_file)
    os.chdir(builddir)
    print "cd", builddir

    setup = CompileSetup(iface_cache.stores, sels)
    setup.prepare_env()

    # These mappings are needed when mixing Zero Install -dev packages with
    # native package binaries.
    mappings = {}
    for impl in sels.selections.values():
        # Add mappings that have been set explicitly...
        new_mappings = impl.attrs.get(XMLNS_0COMPILE + ' lib-mappings', '')
        if new_mappings:
            new_mappings = new_mappings.split(' ')
            for mapping in new_mappings:
                assert ':' in mapping, "lib-mappings missing ':' in '%s' from '%s'" % (
                    mapping, impl.feed)
                name, major_version = mapping.split(':', 1)
                assert '/' not in mapping, "lib-mappings '%s' contains a / in the version number (from '%s')!" % (
                    mapping, impl.feed)
                if sys.platform == 'darwin':
                    mappings[name] = 'lib%s.%s.dylib' % (name, major_version)
                else:
                    mappings[name] = 'lib%s.so.%s' % (name, major_version)
        # Auto-detect required mappings where possible...
        # (if the -dev package is native, the symlinks will be OK)
        if not is_package_impl(impl):
            impl_path = lookup(impl)
            for libdirname in ['lib', 'usr/lib', 'lib64', 'usr/lib64']:
                libdir = os.path.join(impl_path, libdirname)
                if os.path.isdir(libdir):
                    find_broken_version_symlinks(libdir, mappings)

    if mappings:
        set_up_mappings(mappings)

    overrides_dir = os.path.join(os.environ['TMPDIR'], PKG_CONFIG_OVERRIDES)
    if os.path.isdir(overrides_dir):
        add_overrides = model.EnvironmentBinding('PKG_CONFIG_PATH',
                                                 PKG_CONFIG_OVERRIDES)
        do_env_binding(add_overrides, os.environ['TMPDIR'])

    # Some programs want to put temporary build files in the source directory.
    # Make a copy of the source if needed.
    dup_src_type = src_impl.attrs.get(XMLNS_0COMPILE + ' dup-src', None)
    if dup_src_type == 'true':
        dup_src(copy_file)
        env('SRCDIR', builddir)
    elif dup_src_type:
        raise Exception("Unknown dup-src value '%s'" % dup_src_type)

    if options.shell:
        spawn_and_check(find_in_path('cmd' if os.name == 'nt' else 'sh'), [])
    else:
        command = sels.commands[0].qdom.attrs.get('shell-command', None)
        if command is None:
            # New style <command>
            prog_args = setup.build_command(sels.interface,
                                            sels.command) + args
        else:
            # Old style shell-command='...'
            if os.name == 'nt':
                prog_args = [
                    os.environ['0COMPILE_BASH'], '-eux', '-c', command
                ] + args
            else:
                prog_args = ['/bin/sh', '-c', command + ' "$@"', '-'] + args
            assert len(sels.commands) == 1

        # Remove any existing log files
        for log in ['build.log', 'build-success.log', 'build-failure.log']:
            if os.path.exists(log):
                os.unlink(log)

        # Run the command, copying output to a new log
        with open('build.log', 'w') as log:
            print >> log, "Build log for %s-%s" % (master_feed.get_name(),
                                                   src_impl.version)
            print >> log, "\nBuilt using 0compile-%s" % __main__.version
            print >> log, "\nBuild system: " + ', '.join(uname)
            print >> log, "\n%s:\n" % ENV_FILE
            with open(os.path.join(os.pardir, ENV_FILE)) as properties_file:
                shutil.copyfileobj(properties_file, log)

            log.write('\n')

            if os.path.exists(patch_file):
                print >> log, "\nPatched with:\n"
                shutil.copyfileobj(file(patch_file), log)
                log.write('\n')

            if command:
                print "Executing: " + command, args
                print >> log, "Executing: " + command, args
            else:
                print "Executing: " + str(prog_args)
                print >> log, "Executing: " + str(prog_args)

            # Tee the output to the console and to the log
            child = subprocess.Popen(prog_args,
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.STDOUT)
            while True:
                data = os.read(child.stdout.fileno(), 100)
                if not data: break
                sys.stdout.write(data)
                log.write(data)
            status = child.wait()
            failure = None
            if status == 0:
                print >> log, "Build successful"
                shorten_dynamic_library_install_names()
                fixup_generated_pkgconfig_files()
                remove_la_files()
            elif status > 0:
                failure = "Build failed with exit code %d" % status
            else:
                failure = "Build failure: exited due to signal %d" % (-status)
            if failure:
                print >> log, failure

        if failure:
            os.rename('build.log', 'build-failure.log')
            raise SafeException("Command '%s': %s" % (prog_args, failure))
        else:
            os.rename('build.log', 'build-success.log')
Exemple #10
0
	def get_name(self):
		from zeroinstall.injector.iface_cache import iface_cache
		feed = iface_cache.get_feed(self.uri)
		if feed:
			return feed.get_name()
		return '(' + os.path.basename(self.uri) + ')'
Exemple #11
0
    def testStale(self):
        self.httpd([
            'files/download.xml',
            'files/25CE480645A8CA07.gpg',
            'key-info/key/EC37EA199F9ADC3328EE338625CE480645A8CA07',
            'files/HelloWorld.tgz',
            'files/download.xml',
            'files/download.xml',
        ])

        flask = Flask()
        status = []

        flask.connect('finished', lambda sender:
                      (status.append(True), gtk.main_quit()))
        flask.connect('cancelled', lambda sender:
                      (status.append(False), gtk.main_quit()))
        flask.connect('key_confirm', lambda sender, key: sender.accept(key))
        flask.connect('verbose',
                      lambda sender, message: self.logger.info(message))

        flask.pull(HTTP + 'files/download.xml')
        gtk.main()

        self.assertEqual([True], status)
        self.assertEqual(HTTP + 'files/download.xml', flask.policy.root)
        self.assertEqual(True, flask.policy.solver.ready)
        self.assertEqual(False, flask.policy.need_download())
        self.assertEqual(False, flask.is_stale())
        self.assertEqual(1, flask.processed)
        self.assertEqual(0, flask.skipped)

        time.sleep(1)

        status = []

        def refresh():
            flask.refresh(HTTP + 'files/download.xml', freshness=10)

        gobject.idle_add(refresh)
        gtk.main()

        self.assertEqual([True], status)
        self.assertEqual(HTTP + 'files/download.xml', flask.policy.root)
        self.assertEqual(True, flask.policy.solver.ready)
        self.assertEqual(False, flask.is_stale())
        self.assertEqual(1, flask.processed)
        self.assertEqual(0, flask.skipped)

        time.sleep(3)

        policy = Policy(HTTP + 'files/download.xml')
        policy.freshness = 1
        policy.need_download()
        feed = [iface_cache.get_feed(i) for i in policy.solver.feeds_used][0]
        self.assertEqual(True, policy.is_stale(feed))

        status = []

        def refresh():
            flask.refresh(HTTP + 'files/download.xml', freshness=1)

        gobject.idle_add(refresh)
        gtk.main()

        self.assertEqual([True], status)
        self.assertEqual(HTTP + 'files/download.xml', flask.policy.root)
        self.assertEqual(True, flask.policy.solver.ready)
        self.assertEqual(1, flask.processed)
        self.assertEqual(0, flask.skipped)

        policy = Policy(HTTP + 'files/download.xml')
        policy.freshness = 3
        policy.need_download()
        feed = [iface_cache.get_feed(i) for i in policy.solver.feeds_used][0]
        self.assertEqual(False, policy.is_stale(feed))
Exemple #12
0
def _normal_mode(options, args):
	from zeroinstall.injector import handler

	if len(args) < 1:
		if options.gui:
			from zeroinstall import helpers
			return helpers.get_selections_gui(None, [])
		else:
			raise UsageError()

	iface_uri = model.canonical_iface_uri(args[0])
	root_iface = iface_cache.get_interface(iface_uri)

	if os.isatty(1):
		h = handler.ConsoleHandler()
	else:
		h = handler.Handler()
	h.dry_run = bool(options.dry_run)

	policy = autopolicy.AutoPolicy(iface_uri,
				handler = h,
				download_only = bool(options.download_only),
				src = options.source)

	if options.before or options.not_before:
		policy.solver.extra_restrictions[root_iface] = [model.VersionRangeRestriction(model.parse_version(options.before),
									      		      model.parse_version(options.not_before))]

	if options.os or options.cpu:
		from zeroinstall.injector import arch
		policy.target_arch = arch.get_architecture(options.os, options.cpu)

	if options.offline:
		policy.network_use = model.network_offline

	if options.get_selections:
		if len(args) > 1:
			raise SafeException(_("Can't use arguments with --get-selections"))
		if options.main:
			raise SafeException(_("Can't use --main with --get-selections"))

	# Note that need_download() triggers a solve
	if options.refresh or options.gui:
		# We could run immediately, but the user asked us not to
		can_run_immediately = False
	else:
		can_run_immediately = (not policy.need_download()) and policy.ready

		stale_feeds = [feed for feed in policy.solver.feeds_used if policy.is_stale(iface_cache.get_feed(feed))]

		if options.download_only and stale_feeds:
			can_run_immediately = False

	if can_run_immediately:
		if stale_feeds:
			if policy.network_use == model.network_offline:
				logging.debug(_("No doing background update because we are in off-line mode."))
			else:
				# There are feeds we should update, but we can run without them.
				# Do the update in the background while the program is running.
				import background
				background.spawn_background_update(policy, options.verbose > 0)
		if options.get_selections:
			_get_selections(policy)
		else:
			if not options.download_only:
				from zeroinstall.injector import run
				run.execute(policy, args[1:], dry_run = options.dry_run, main = options.main, wrapper = options.wrapper)
			else:
				logging.info(_("Downloads done (download-only mode)"))
			assert options.dry_run or options.download_only
		return

	# If the user didn't say whether to use the GUI, choose for them.
	if options.gui is None and os.environ.get('DISPLAY', None):
		options.gui = True
		# If we need to download anything, we might as well
		# refresh all the interfaces first. Also, this triggers
		# the 'checking for updates' box, which is non-interactive
		# when there are no changes to the selection.
		options.refresh = True
		logging.info(_("Switching to GUI mode... (use --console to disable)"))

	prog_args = args[1:]

	try:
		from zeroinstall.injector import run
		if options.gui:
			gui_args = []
			if options.download_only:
				# Just changes the button's label
				gui_args.append('--download-only')
			if options.refresh:
				gui_args.append('--refresh')
			if options.systray:
				gui_args.append('--systray')
			if options.not_before:
				gui_args.insert(0, options.not_before)
				gui_args.insert(0, '--not-before')
			if options.before:
				gui_args.insert(0, options.before)
				gui_args.insert(0, '--before')
			if options.source:
				gui_args.insert(0, '--source')
			if options.message:
				gui_args.insert(0, options.message)
				gui_args.insert(0, '--message')
			if options.verbose:
				gui_args.insert(0, '--verbose')
				if options.verbose > 1:
					gui_args.insert(0, '--verbose')
			if options.cpu:
				gui_args.insert(0, options.cpu)
				gui_args.insert(0, '--cpu')
			if options.os:
				gui_args.insert(0, options.os)
				gui_args.insert(0, '--os')
			if options.with_store:
				for x in options.with_store:
					gui_args += ['--with-store', x]
			sels = _fork_gui(iface_uri, gui_args, prog_args, options)
			if not sels:
				sys.exit(1)		# Aborted
		else:
			#program_log('download_and_execute ' + iface_uri)
			downloaded = policy.solve_and_download_impls(refresh = bool(options.refresh))
			if downloaded:
				policy.handler.wait_for_blocker(downloaded)
			sels = selections.Selections(policy)

		if options.get_selections:
			doc = sels.toDOM()
			doc.writexml(sys.stdout)
			sys.stdout.write('\n')
		elif not options.download_only:
			run.execute_selections(sels, prog_args, options.dry_run, options.main, options.wrapper)

	except NeedDownload, ex:
		# This only happens for dry runs
		print ex
Exemple #13
0
def do_build_internal(options, args):
	"""build-internal"""
	# If a sandbox is being used, we're in it now.
	import getpass, socket

	buildenv = BuildEnv()
	sels = buildenv.get_selections()

	builddir = os.path.realpath('build')
	ensure_dir(buildenv.metadir)

	build_env_xml = join(buildenv.metadir, 'build-environment.xml')

	buildenv_doc = sels.toDOM()

	# Create build-environment.xml file
	root = buildenv_doc.documentElement
	info = buildenv_doc.createElementNS(XMLNS_0COMPILE, 'build-info')
	root.appendChild(info)
	info.setAttributeNS(None, 'time', time.strftime('%Y-%m-%d %H:%M').strip())
	info.setAttributeNS(None, 'host', socket.getfqdn())
	info.setAttributeNS(None, 'user', getpass.getuser())
	info.setAttributeNS(None, 'arch', '%s-%s' % (uname[0], uname[4]))
	stream = file(build_env_xml, 'w')
	buildenv_doc.writexml(stream, addindent="  ", newl="\n")
	stream.close()

	# Create local binary interface file.
	# We use the main feed for the interface as the template for the name,
	# summary, etc (note: this is not necessarily the feed that contained
	# the source code).
	master_feed = iface_cache.get_feed(buildenv.interface)
	src_impl = buildenv.chosen_impl(buildenv.interface)
	write_sample_feed(buildenv, master_feed, src_impl)

	# Check 0compile is new enough
	min_version = model.parse_version(src_impl.attrs.get(XMLNS_0COMPILE + ' min-version', None))
	if min_version and min_version > model.parse_version(__main__.version):
		raise SafeException("%s-%s requires 0compile >= %s, but we are only version %s" %
				(master_feed.get_name(), src_impl.version, model.format_version(min_version), __main__.version))

	# Create the patch
	patch_file = join(buildenv.metadir, 'from-%s.patch' % src_impl.version)
	if buildenv.user_srcdir:
		with open(patch_file, 'w') as stream:
			# (ignore errors; will already be shown on stderr)
			try:
				subprocess.call(["diff", "-urN", buildenv.orig_srcdir, 'src'], stdout = stream)
			except OSError as ex:
				print >>sys.stderr, "WARNING: Failed to run 'diff': ", ex
		if os.path.getsize(patch_file) == 0:
			os.unlink(patch_file)
	elif os.path.exists(patch_file):
		os.unlink(patch_file)

	env('BUILDDIR', builddir)
	env('DISTDIR', buildenv.distdir)
	env('SRCDIR', buildenv.user_srcdir or buildenv.orig_srcdir)
	env('BINARYFEED', buildenv.local_iface_file)
	os.chdir(builddir)
	print "cd", builddir

	setup = CompileSetup(iface_cache.stores, sels)
	setup.prepare_env()

	# These mappings are needed when mixing Zero Install -dev packages with
	# native package binaries.
	mappings = {}
	for impl in sels.selections.values():
		# Add mappings that have been set explicitly...
		new_mappings = impl.attrs.get(XMLNS_0COMPILE + ' lib-mappings', '')
		if new_mappings:
			new_mappings = new_mappings.split(' ')
			for mapping in new_mappings:
				assert ':' in mapping, "lib-mappings missing ':' in '%s' from '%s'" % (mapping, impl.feed)
				name, major_version = mapping.split(':', 1)
				assert '/' not in mapping, "lib-mappings '%s' contains a / in the version number (from '%s')!" % (mapping, impl.feed)
				if sys.platform == 'darwin':
					mappings[name] = 'lib%s.%s.dylib' % (name, major_version)
				else:
					mappings[name] = 'lib%s.so.%s' % (name, major_version)
		# Auto-detect required mappings where possible...
		# (if the -dev package is native, the symlinks will be OK)
		if not is_package_impl(impl):
			impl_path = lookup(impl)
			for libdirname in ['lib', 'usr/lib', 'lib64', 'usr/lib64']:
				libdir = os.path.join(impl_path, libdirname)
				if os.path.isdir(libdir):
					find_broken_version_symlinks(libdir, mappings)

	if mappings:
		set_up_mappings(mappings)

	overrides_dir = os.path.join(os.environ['TMPDIR'], PKG_CONFIG_OVERRIDES)
	if os.path.isdir(overrides_dir):
		add_overrides = model.EnvironmentBinding('PKG_CONFIG_PATH', PKG_CONFIG_OVERRIDES)
		do_env_binding(add_overrides, os.environ['TMPDIR'])

	# Some programs want to put temporary build files in the source directory.
	# Make a copy of the source if needed.
	dup_src_type = src_impl.attrs.get(XMLNS_0COMPILE + ' dup-src', None)
	if dup_src_type == 'true':
		dup_src(shutil.copy2)
		env('SRCDIR', builddir)
	elif dup_src_type:
		raise Exception("Unknown dup-src value '%s'" % dup_src_type)

	if options.shell:
		spawn_and_check(find_in_path('cmd' if os.name == 'nt' else 'sh'), [])
	else:
		command = sels.commands[0].qdom.attrs.get('shell-command', None)
		if command is None:
			# New style <command>
			prog_args = setup.build_command(sels.interface, sels.command) + args
		else:
			# Old style shell-command='...'
			if os.name == 'nt':
				prog_args = ['cmd', '/c', command] + args
			else:
				prog_args = ['/bin/sh', '-c', command + ' "$@"', '-'] + args
			assert len(sels.commands) == 1

		# Remove any existing log files
		for log in ['build.log', 'build-success.log', 'build-failure.log']:
			if os.path.exists(log):
				os.unlink(log)

		# Run the command, copying output to a new log
		with open('build.log', 'w') as log:
			print >>log, "Build log for %s-%s" % (master_feed.get_name(),
							      src_impl.version)
			print >>log, "\nBuilt using 0compile-%s" % __main__.version
			print >>log, "\nBuild system: " + ', '.join(uname)
			print >>log, "\n%s:\n" % ENV_FILE
			with open(os.path.join(os.pardir, ENV_FILE)) as properties_file:
				shutil.copyfileobj(properties_file, log)

			log.write('\n')

			if os.path.exists(patch_file):
				print >>log, "\nPatched with:\n"
				shutil.copyfileobj(file(patch_file), log)
				log.write('\n')

			if command:
				print "Executing: " + command, args
				print >>log, "Executing: " + command, args
			else:
				print "Executing: " + str(prog_args)
				print >>log, "Executing: " + str(prog_args)

			# Tee the output to the console and to the log
			child = subprocess.Popen(prog_args, stdout = subprocess.PIPE, stderr = subprocess.STDOUT)
			while True:
				data = os.read(child.stdout.fileno(), 100)
				if not data: break
				sys.stdout.write(data)
				log.write(data)
			status = child.wait()
			failure = None
			if status == 0:
				print >>log, "Build successful"
				shorten_dynamic_library_install_names()
				fixup_generated_pkgconfig_files()
				remove_la_files()
			elif status > 0:
				failure = "Build failed with exit code %d" % status
			else:
				failure = "Build failure: exited due to signal %d" % (-status)
			if failure:
				print >>log, failure

		if failure:
			os.rename('build.log', 'build-failure.log')
			raise SafeException("Command '%s': %s" % (prog_args, failure))
		else:
			os.rename('build.log', 'build-success.log')