Python SpawnProcess._start方法代码示例

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		tar_options = ""
		if "xattr" in self.features:
			process = subprocess.Popen(["tar", "--help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
			output = process.communicate()[0]
			if b"--xattrs" in output:
				tar_options = "--xattrs"

		# Add -q to bzip2 opts, in order to avoid "trailing garbage after
		# EOF ignored" warning messages due to xpak trailer.
		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
		self.args = [self._shell_binary, "-c",
			("${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -cq -- %s | tar -xp %s -C %s -f - ; " + \
			"p=(${PIPESTATUS[@]}) ; " + \
			"if [[ ${p[0]} != 0 && ${p[0]} != %d ]] ; then " % (128 + signal.SIGPIPE) + \
			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
			"if [ ${p[1]} != 0 ] ; then " + \
			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
			"exit 0 ;") % \
			(portage._shell_quote(self.pkg_path),
			tar_options,
			portage._shell_quote(self.image_dir))]

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start_post_builddir_lock(self, lock_future=None, start_ipc_daemon=False):
		if lock_future is not None:
			if lock_future is not self._start_future:
				raise AssertionError('lock_future is not self._start_future')
			self._start_future = None
			if lock_future.cancelled():
				self._build_dir = None
				self.cancelled = True
				self._was_cancelled()
				self._async_wait()
				return

			lock_future.result()

		if start_ipc_daemon:
			self.settings['PORTAGE_IPC_DAEMON'] = "1"
			self._start_ipc_daemon()

		if self.fd_pipes is None:
			self.fd_pipes = {}
		null_fd = None
		if 0 not in self.fd_pipes and \
			self.phase not in self._phases_interactive_whitelist and \
			"interactive" not in self.settings.get("PROPERTIES", "").split():
			null_fd = os.open('/dev/null', os.O_RDONLY)
			self.fd_pipes[0] = null_fd

		try:
			SpawnProcess._start(self)
		finally:
			if null_fd is not None:
				os.close(null_fd)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		if self.background:
			# Automatically prevent color codes from showing up in logs,
			# since we're not displaying to a terminal anyway.
			self.settings['NOCOLOR'] = 'true'

		if self._enable_ipc_daemon:
			self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)
			if self.phase not in self._phases_without_builddir:
				self.settings['PORTAGE_IPC_DAEMON'] = "1"
				self._start_ipc_daemon()
			else:
				self.settings.pop('PORTAGE_IPC_DAEMON', None)
		else:
			# Since the IPC daemon is disabled, use a simple tempfile based
			# approach to detect unexpected exit like in bug #190128.
			self.settings.pop('PORTAGE_IPC_DAEMON', None)
			if self.phase not in self._phases_without_builddir:
				exit_file = os.path.join(
					self.settings['PORTAGE_BUILDDIR'],
					'.exit_status')
				self.settings['PORTAGE_EBUILD_EXIT_FILE'] = exit_file
				try:
					os.unlink(exit_file)
				except OSError:
					if os.path.exists(exit_file):
						# make sure it doesn't exist
						raise
			else:
				self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		root_config = self.pkg.root_config
		portdb = root_config.trees["porttree"].dbapi
		ebuild_path = self._get_ebuild_path()

		try:
			uri_map = self._get_uri_map()
		except portage.exception.InvalidDependString as e:
			msg_lines = []
			msg = "Fetch failed for '%s' due to invalid SRC_URI: %s" % \
				(self.pkg.cpv, e)
			msg_lines.append(msg)
			self._eerror(msg_lines)
			self._set_returncode((self.pid, 1 << 8))
			self.wait()
			return

		if not uri_map:
			# Nothing to fetch.
			self._set_returncode((self.pid, os.EX_OK << 8))
			self.wait()
			return

		settings = self.config_pool.allocate()
		settings.setcpv(self.pkg)
		portage.doebuild_environment(ebuild_path, 'fetch',
			settings=settings, db=portdb)

		if self.prefetch and \
			self._prefetch_size_ok(uri_map, settings, ebuild_path):
			self.config_pool.deallocate(settings)
			self._set_returncode((self.pid, os.EX_OK << 8))
			self.wait()
			return

		nocolor = settings.get("NOCOLOR")

		if self.prefetch:
			settings["PORTAGE_PARALLEL_FETCHONLY"] = "1"

		if self.background:
			nocolor = "true"

		if nocolor is not None:
			settings["NOCOLOR"] = nocolor

		self._settings = settings
		SpawnProcess._start(self)

		# Free settings now since it's no longer needed in
		# this process (the subprocess has a private copy).
		self.config_pool.deallocate(settings)
		settings = None
		self._settings = None

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		need_builddir = self.phase not in self._phases_without_builddir

		# This can happen if the pre-clean phase triggers
		# die_hooks for some reason, and PORTAGE_BUILDDIR
		# doesn't exist yet.
		if need_builddir and \
			not os.path.isdir(self.settings['PORTAGE_BUILDDIR']):
			msg = _("The ebuild phase '%s' has been aborted "
			"since PORTAGE_BUILDIR does not exist: '%s'") % \
			(self.phase, self.settings['PORTAGE_BUILDDIR'])
			self._eerror(textwrap.wrap(msg, 72))
			self._set_returncode((self.pid, 1 << 8))
			self.wait()
			return

		if self.background:
			# Automatically prevent color codes from showing up in logs,
			# since we're not displaying to a terminal anyway.
			self.settings['NOCOLOR'] = 'true'

		if self._enable_ipc_daemon:
			self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)
			if self.phase not in self._phases_without_builddir:
				if 'PORTAGE_BUILDIR_LOCKED' not in self.settings:
					self._build_dir = EbuildBuildDir(
						scheduler=self.scheduler, settings=self.settings)
					self._build_dir.lock()
				self.settings['PORTAGE_IPC_DAEMON'] = "1"
				self._start_ipc_daemon()
			else:
				self.settings.pop('PORTAGE_IPC_DAEMON', None)
		else:
			# Since the IPC daemon is disabled, use a simple tempfile based
			# approach to detect unexpected exit like in bug #190128.
			self.settings.pop('PORTAGE_IPC_DAEMON', None)
			if self.phase not in self._phases_without_builddir:
				exit_file = os.path.join(
					self.settings['PORTAGE_BUILDDIR'],
					'.exit_status')
				self.settings['PORTAGE_EBUILD_EXIT_FILE'] = exit_file
				try:
					os.unlink(exit_file)
				except OSError:
					if os.path.exists(exit_file):
						# make sure it doesn't exist
						raise
			else:
				self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		self.args = [self._shell_binary, "-c",
			("bzip2 -dqc -- %s | tar -xp -C %s -f - ; " + \
			"p=(${PIPESTATUS[@]}) ; " + \
			"if [ ${p[0]} != 0 ] ; then " + \
			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
			"if [ ${p[1]} != 0 ] ; then " + \
			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
			"exit 0 ;") % \
			(portage._shell_quote(self.pkg_path),
			portage._shell_quote(self.image_dir))]

		self.env = os.environ.copy()
		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
		self.args = [self._shell_binary, "-c",
			("bzip2 -dqc -- %s | tar -xp -C %s -f - ; " + \
			"p=(${PIPESTATUS[@]}) ; " + \
			"if [[ ${p[0]} != 0 && ${p[0]} != %d ]] ; then " % (128 + signal.SIGPIPE) + \
			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
			"if [ ${p[1]} != 0 ] ; then " + \
			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
			"exit 0 ;") % \
			(portage._shell_quote(self.pkg_path),
			portage._shell_quote(self.image_dir))]

		self.env = os.environ.copy()
		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		# Add -q to bzip2 opts, in order to avoid "trailing garbage after
		# EOF ignored" warning messages due to xpak trailer.
		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
		self.args = [self._shell_binary, "-c",
			("${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -cq -- %s | tar -xp -C %s -f - ; " + \
			"p=(${PIPESTATUS[@]}) ; " + \
			"if [[ ${p[0]} != 0 && ${p[0]} != %d ]] ; then " % (128 + signal.SIGPIPE) + \
			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
			"if [ ${p[1]} != 0 ] ; then " + \
			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
			"exit 0 ;") % \
			(portage._shell_quote(self.pkg_path),
			portage._shell_quote(self.image_dir))]

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		tar_options = ""
		if "xattr" in self.features:
			process = subprocess.Popen(["tar", "--help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
			output = process.communicate()[0]
			if b"--xattrs" in output:
				tar_options = ["--xattrs", "--xattrs-include='*'"]
				for x in portage.util.shlex_split(self.env.get("PORTAGE_XATTR_EXCLUDE", "")):
					tar_options.append(portage._shell_quote("--xattrs-exclude=%s" % x))
				tar_options = " ".join(tar_options)

		decomp_cmd = _decompressors.get(
			compression_probe(self.pkg_path))
		if decomp_cmd is None:
			self.scheduler.output("!!! %s\n" %
				_("File compression header unrecognized: %s") %
				self.pkg_path, log_path=self.logfile,
				background=self.background, level=logging.ERROR)
			self.returncode = 1
			self._async_wait()
			return

		# Add -q to decomp_cmd opts, in order to avoid "trailing garbage
		# after EOF ignored" warning messages due to xpak trailer.
		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
		self.args = [self._shell_binary, "-c",
			("%s -cq -- %s | tar -xp %s -C %s -f - ; " + \
			"p=(${PIPESTATUS[@]}) ; " + \
			"if [[ ${p[0]} != 0 && ${p[0]} != %d ]] ; then " % (128 + signal.SIGPIPE) + \
			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
			"if [ ${p[1]} != 0 ] ; then " + \
			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
			"exit 0 ;") % \
			(decomp_cmd,
			portage._shell_quote(self.pkg_path),
			tar_options,
			portage._shell_quote(self.image_dir))]

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		need_builddir = self.phase not in self._phases_without_builddir

		# This can happen if the pre-clean phase triggers
		# die_hooks for some reason, and PORTAGE_BUILDDIR
		# doesn't exist yet.
		if need_builddir and \
			not os.path.isdir(self.settings['PORTAGE_BUILDDIR']):
			msg = _("The ebuild phase '%s' has been aborted "
			"since PORTAGE_BUILDDIR does not exist: '%s'") % \
			(self.phase, self.settings['PORTAGE_BUILDDIR'])
			self._eerror(textwrap.wrap(msg, 72))
			self._set_returncode((self.pid, 1 << 8))
			self._async_wait()
			return

		# Check if the cgroup hierarchy is in place. If it's not, mount it.
		if (os.geteuid() == 0 and platform.system() == 'Linux'
				and 'cgroup' in self.settings.features
				and self.phase not in self._phases_without_cgroup):
			cgroup_root = '/sys/fs/cgroup'
			cgroup_portage = os.path.join(cgroup_root, 'portage')

			try:
				# cgroup tmpfs
				if not os.path.ismount(cgroup_root):
					# we expect /sys/fs to be there already
					if not os.path.isdir(cgroup_root):
						os.mkdir(cgroup_root, 0o755)
					subprocess.check_call(['mount', '-t', 'tmpfs',
						'-o', 'rw,nosuid,nodev,noexec,mode=0755',
						'tmpfs', cgroup_root])

				# portage subsystem
				if not os.path.ismount(cgroup_portage):
					if not os.path.isdir(cgroup_portage):
						os.mkdir(cgroup_portage, 0o755)
					subprocess.check_call(['mount', '-t', 'cgroup',
						'-o', 'rw,nosuid,nodev,noexec,none,name=portage',
						'tmpfs', cgroup_portage])

				cgroup_path = tempfile.mkdtemp(dir=cgroup_portage,
					prefix='%s:%s.' % (self.settings["CATEGORY"],
					self.settings["PF"]))
			except (subprocess.CalledProcessError, OSError):
				pass
			else:
				self.cgroup = cgroup_path

		if self.background:
			# Automatically prevent color codes from showing up in logs,
			# since we're not displaying to a terminal anyway.
			self.settings['NOCOLOR'] = 'true'

		if self._enable_ipc_daemon:
			self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)
			if self.phase not in self._phases_without_builddir:
				if 'PORTAGE_BUILDDIR_LOCKED' not in self.settings:
					self._build_dir = EbuildBuildDir(
						scheduler=self.scheduler, settings=self.settings)
					self._build_dir.lock()
				self.settings['PORTAGE_IPC_DAEMON'] = "1"
				self._start_ipc_daemon()
			else:
				self.settings.pop('PORTAGE_IPC_DAEMON', None)
		else:
			# Since the IPC daemon is disabled, use a simple tempfile based
			# approach to detect unexpected exit like in bug #190128.
			self.settings.pop('PORTAGE_IPC_DAEMON', None)
			if self.phase not in self._phases_without_builddir:
				exit_file = os.path.join(
					self.settings['PORTAGE_BUILDDIR'],
					'.exit_status')
				self.settings['PORTAGE_EBUILD_EXIT_FILE'] = exit_file
				try:
					os.unlink(exit_file)
				except OSError:
					if os.path.exists(exit_file):
						# make sure it doesn't exist
						raise
			else:
				self.settings.pop('PORTAGE_EBUILD_EXIT_FILE', None)

		if self.fd_pipes is None:
			self.fd_pipes = {}
		null_fd = None
		if 0 not in self.fd_pipes and \
			self.phase not in self._phases_interactive_whitelist and \
			"interactive" not in self.settings.get("PROPERTIES", "").split():
			null_fd = os.open('/dev/null', os.O_RDONLY)
			self.fd_pipes[0] = null_fd

		try:
			SpawnProcess._start(self)
		finally:
			if null_fd is not None:
				os.close(null_fd)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		if self.cancelled:
			return

		pkg = self.pkg
		pretend = self.pretend
		bintree = pkg.root_config.trees["bintree"]
		settings = bintree.settings
		use_locks = "distlocks" in settings.features
		pkg_path = self.pkg_path

		if not pretend:
			portage.util.ensure_dirs(os.path.dirname(pkg_path))
			if use_locks:
				self.lock()
		exists = os.path.exists(pkg_path)
		resume = exists and os.path.basename(pkg_path) in bintree.invalids
		if not (pretend or resume):
			# Remove existing file or broken symlink.
			try:
				os.unlink(pkg_path)
			except OSError:
				pass

		# urljoin doesn't work correctly with
		# unrecognized protocols like sftp
		if bintree._remote_has_index:
			rel_uri = bintree._remotepkgs[pkg.cpv].get("PATH")
			if not rel_uri:
				rel_uri = pkg.cpv + ".tbz2"
			uri = bintree._remote_base_uri.rstrip("/") + \
				"/" + rel_uri.lstrip("/")
		else:
			uri = settings["PORTAGE_BINHOST"].rstrip("/") + \
				"/" + pkg.pf + ".tbz2"

		if pretend:
			portage.writemsg_stdout("\n%s\n" % uri, noiselevel=-1)
			self.returncode = os.EX_OK
			self.wait()
			return

		protocol = urllib_parse_urlparse(uri)[0]
		fcmd_prefix = "FETCHCOMMAND"
		if resume:
			fcmd_prefix = "RESUMECOMMAND"
		fcmd = settings.get(fcmd_prefix + "_" + protocol.upper())
		if not fcmd:
			fcmd = settings.get(fcmd_prefix)

		fcmd_vars = {
			"DISTDIR" : os.path.dirname(pkg_path),
			"URI"     : uri,
			"FILE"    : os.path.basename(pkg_path)
		}

		fetch_env = dict(settings.items())
		fetch_args = [portage.util.varexpand(x, mydict=fcmd_vars) \
			for x in portage.util.shlex_split(fcmd)]

		if self.fd_pipes is None:
			self.fd_pipes = {}
		fd_pipes = self.fd_pipes

		# Redirect all output to stdout since some fetchers like
		# wget pollute stderr (if portage detects a problem then it
		# can send it's own message to stderr).
		fd_pipes.setdefault(0, sys.stdin.fileno())
		fd_pipes.setdefault(1, sys.stdout.fileno())
		fd_pipes.setdefault(2, sys.stdout.fileno())

		self.args = fetch_args
		self.env = fetch_env
		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		tar_options = ""
		if "xattr" in self.features:
			process = subprocess.Popen(["tar", "--help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
			output = process.communicate()[0]
			if b"--xattrs" in output:
				tar_options = ["--xattrs", "--xattrs-include='*'"]
				for x in portage.util.shlex_split(self.env.get("PORTAGE_XATTR_EXCLUDE", "")):
					tar_options.append(portage._shell_quote("--xattrs-exclude=%s" % x))
				tar_options = " ".join(tar_options)

		decomp = _compressors.get(compression_probe(self.pkg_path))
		if decomp is not None:
			decomp_cmd = decomp.get("decompress")
		else:
			decomp_cmd = None
		if decomp_cmd is None:
			self.scheduler.output("!!! %s\n" %
				_("File compression header unrecognized: %s") %
				self.pkg_path, log_path=self.logfile,
				background=self.background, level=logging.ERROR)
			self.returncode = 1
			self._async_wait()
			return

		try:
			decompression_binary = shlex_split(varexpand(decomp_cmd, mydict=self.env))[0]
		except IndexError:
			decompression_binary = ""

		if find_binary(decompression_binary) is None:
			# Try alternative command if it exists
			if _compressors.get(compression_probe(self.pkg_path)).get("decompress_alt"):
				decomp_cmd = _compressors.get(
					compression_probe(self.pkg_path)).get("decompress_alt")
			try:
				decompression_binary = shlex_split(varexpand(decomp_cmd, mydict=self.env))[0]
			except IndexError:
				decompression_binary = ""

			if find_binary(decompression_binary) is None:
				missing_package = _compressors.get(compression_probe(self.pkg_path)).get("package")
				self.scheduler.output("!!! %s\n" %
					_("File compression unsupported %s.\n Command was: %s.\n Maybe missing package: %s") %
					(self.pkg_path, varexpand(decomp_cmd, mydict=self.env), missing_package), log_path=self.logfile,
					background=self.background, level=logging.ERROR)
				self.returncode = 1
				self._async_wait()
				return

		pkg_xpak = portage.xpak.tbz2(self.pkg_path)
		pkg_xpak.scan()

		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
		self.args = [self._shell_binary, "-c",
			("cmd0=(head -c %d -- %s) cmd1=(%s) cmd2=(tar -xp %s -C %s -f -); " + \
			'"${cmd0[@]}" | "${cmd1[@]}" | "${cmd2[@]}"; ' + \
			"p=(${PIPESTATUS[@]}) ; for i in {0..2}; do " + \
			"if [[ ${p[$i]} != 0 && ${p[$i]} != %d ]] ; then " + \
			"echo command $(eval \"echo \\\"'\\${cmd$i[*]}'\\\"\") " + \
			"failed with status ${p[$i]} ; exit ${p[$i]} ; fi ; done; " + \
			"if [ ${p[$i]} != 0 ] ; then " + \
			"echo command $(eval \"echo \\\"'\\${cmd$i[*]}'\\\"\") " + \
			"failed with status ${p[$i]} ; exit ${p[$i]} ; fi ; " + \
			"exit 0 ;") % \
			(pkg_xpak.filestat.st_size - pkg_xpak.xpaksize,
			portage._shell_quote(self.pkg_path),
			decomp_cmd,
			tar_options,
			portage._shell_quote(self.image_dir),
			128 + signal.SIGPIPE)]

		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		root_config = self.pkg.root_config
		portdb = root_config.trees["porttree"].dbapi
		ebuild_path = portdb.findname(self.pkg.cpv)
		if ebuild_path is None:
			raise AssertionError("ebuild not found for '%s'" % self.pkg.cpv)

		try:
			uri_map = self._get_uri_map(portdb, ebuild_path)
		except portage.exception.InvalidDependString as e:
			msg_lines = []
			msg = "Fetch failed for '%s' due to invalid SRC_URI: %s" % \
				(self.pkg.cpv, e)
			msg_lines.append(msg)
			self._eerror(msg_lines)
			self._set_returncode((self.pid, 1))
			self.wait()
			return

		if not uri_map:
			# Nothing to fetch.
			self._set_returncode((self.pid, os.EX_OK))
			self.wait()
			return

		settings = self.config_pool.allocate()
		settings.setcpv(self.pkg)

		if self.prefetch and \
			self._prefetch_size_ok(uri_map, settings, ebuild_path):
			self.config_pool.deallocate(settings)
			self._set_returncode((self.pid, os.EX_OK))
			self.wait()
			return

		phase = "fetch"
		if self.fetchall:
			phase = "fetchall"

		# If any incremental variables have been overridden
		# via the environment, those values need to be passed
		# along here so that they are correctly considered by
		# the config instance in the subproccess.
		fetch_env = os.environ.copy()
		fetch_env['PORTAGE_CONFIGROOT'] = settings['PORTAGE_CONFIGROOT']

		nocolor = settings.get("NOCOLOR")
		if nocolor is not None:
			fetch_env["NOCOLOR"] = nocolor

		fetch_env["PORTAGE_NICENESS"] = "0"
		if self.prefetch:
			fetch_env["PORTAGE_PARALLEL_FETCHONLY"] = "1"

		ebuild_binary = os.path.join(
			settings["PORTAGE_BIN_PATH"], "ebuild")

		fetch_args = [ebuild_binary, ebuild_path, phase]
		debug = settings.get("PORTAGE_DEBUG") == "1"
		if debug:
			fetch_args.append("--debug")

		# Free settings now since we only have a local reference.
		self.config_pool.deallocate(settings)
		settings = None

		if not self.background and nocolor not in ('yes', 'true'):
			# Force consistent color output, in case we are capturing fetch
			# output through a normal pipe due to unavailability of ptys.
			fetch_args.append('--color=y')

		self.args = fetch_args
		self.env = fetch_env
		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):

		root_config = self.pkg.root_config
		portdb = root_config.trees["porttree"].dbapi
		ebuild_path = portdb.findname(self.pkg.cpv)
		if ebuild_path is None:
			raise AssertionError("ebuild not found for '%s'" % self.pkg.cpv)
		settings = self.config_pool.allocate()
		settings.setcpv(self.pkg)
		if self.prefetch and \
			self._prefetch_size_ok(portdb, settings, ebuild_path):
			self.config_pool.deallocate(settings)
			self.returncode = os.EX_OK
			self.wait()
			return

		# In prefetch mode, logging goes to emerge-fetch.log and the builddir
		# should not be touched since otherwise it could interfere with
		# another instance of the same cpv concurrently being built for a
		# different $ROOT (currently, builds only cooperate with prefetchers
		# that are spawned for the same $ROOT).
		if not self.prefetch:
			self._build_dir = EbuildBuildDir(pkg=self.pkg, settings=settings)
			self._build_dir.lock()
			self._build_dir.clean_log()
			cleanup=1
			# This initializes PORTAGE_LOG_FILE.
			portage.prepare_build_dirs(self.pkg.root, self._build_dir.settings, cleanup)
			if self.logfile is None:
				self.logfile = settings.get("PORTAGE_LOG_FILE")

		phase = "fetch"
		if self.fetchall:
			phase = "fetchall"

		# If any incremental variables have been overridden
		# via the environment, those values need to be passed
		# along here so that they are correctly considered by
		# the config instance in the subproccess.
		fetch_env = os.environ.copy()
		fetch_env['PORTAGE_CONFIGROOT'] = settings['PORTAGE_CONFIGROOT']

		nocolor = settings.get("NOCOLOR")
		if nocolor is not None:
			fetch_env["NOCOLOR"] = nocolor

		fetch_env["PORTAGE_NICENESS"] = "0"
		if self.prefetch:
			fetch_env["PORTAGE_PARALLEL_FETCHONLY"] = "1"

		ebuild_binary = os.path.join(
			settings["PORTAGE_BIN_PATH"], "ebuild")

		fetch_args = [ebuild_binary, ebuild_path, phase]
		debug = settings.get("PORTAGE_DEBUG") == "1"
		if debug:
			fetch_args.append("--debug")

		if not self.background and nocolor not in ('yes', 'true'):
			# Force consistent color output, in case we are capturing fetch
			# output through a normal pipe due to unavailability of ptys.
			fetch_args.append('--color=y')

		self.args = fetch_args
		self.env = fetch_env
		if self._build_dir is None:
			# Free settings now since we only have a local reference.
			self.config_pool.deallocate(settings)
		SpawnProcess._start(self)

# 需要导入模块: from _emerge.SpawnProcess import SpawnProcess [as 别名]
# 或者: from _emerge.SpawnProcess.SpawnProcess import _start [as 别名]
	def _start(self):
		pkg = self.pkg
		pretend = self.pretend
		bintree = pkg.root_config.trees["bintree"]
		settings = bintree.settings
		pkg_path = self.pkg_path

		exists = os.path.exists(pkg_path)
		resume = exists and os.path.basename(pkg_path) in bintree.invalids
		if not (pretend or resume):
			# Remove existing file or broken symlink.
			try:
				os.unlink(pkg_path)
			except OSError:
				pass

		# urljoin doesn't work correctly with
		# unrecognized protocols like sftp
		if bintree._remote_has_index:
			instance_key = bintree.dbapi._instance_key(pkg.cpv)
			rel_uri = bintree._remotepkgs[instance_key].get("PATH")
			if not rel_uri:
				rel_uri = pkg.cpv + ".tbz2"
			remote_base_uri = bintree._remotepkgs[
				instance_key]["BASE_URI"]
			uri = remote_base_uri.rstrip("/") + "/" + rel_uri.lstrip("/")
		else:
			uri = settings["PORTAGE_BINHOST"].rstrip("/") + \
				"/" + pkg.pf + ".tbz2"

		if pretend:
			portage.writemsg_stdout("\n%s\n" % uri, noiselevel=-1)
			self.returncode = os.EX_OK
			self._async_wait()
			return

		protocol = urllib_parse_urlparse(uri)[0]
		fcmd_prefix = "FETCHCOMMAND"
		if resume:
			fcmd_prefix = "RESUMECOMMAND"
		fcmd = settings.get(fcmd_prefix + "_" + protocol.upper())
		if not fcmd:
			fcmd = settings.get(fcmd_prefix)

		fcmd_vars = {
			"DISTDIR" : os.path.dirname(pkg_path),
			"URI"     : uri,
			"FILE"    : os.path.basename(pkg_path)
		}

		for k in ("PORTAGE_SSH_OPTS",):
			v = settings.get(k)
			if v is not None:
				fcmd_vars[k] = v

		fetch_env = dict(settings.items())
		fetch_args = [portage.util.varexpand(x, mydict=fcmd_vars) \
			for x in portage.util.shlex_split(fcmd)]

		if self.fd_pipes is None:
			self.fd_pipes = {}
		fd_pipes = self.fd_pipes

		# Redirect all output to stdout since some fetchers like
		# wget pollute stderr (if portage detects a problem then it
		# can send it's own message to stderr).
		fd_pipes.setdefault(0, portage._get_stdin().fileno())
		fd_pipes.setdefault(1, sys.__stdout__.fileno())
		fd_pipes.setdefault(2, sys.__stdout__.fileno())

		self.args = fetch_args
		self.env = fetch_env
		if settings.selinux_enabled():
			self._selinux_type = settings["PORTAGE_FETCH_T"]
		SpawnProcess._start(self)