[gentoo-commits] portage r15448 - in main/trunk/pym: _emerge portage portage/dbapi portage/package/ebuild portage/tests/ebuild

[Zac Medico (zmedico)]

Author: zmedico
Date: 2010-02-25 03:37:29 +0000 (Thu, 25 Feb 2010)
New Revision: 15448

Added:
   main/trunk/pym/portage/package/ebuild/_pty.py
   main/trunk/pym/portage/package/ebuild/doebuild.py
   main/trunk/pym/portage/package/ebuild/prepare_build_dirs.py
Modified:
   main/trunk/pym/_emerge/AbstractEbuildProcess.py
   main/trunk/pym/_emerge/EbuildFetcher.py
   main/trunk/pym/_emerge/EbuildPhase.py
   main/trunk/pym/_emerge/EbuildProcess.py
   main/trunk/pym/_emerge/MiscFunctionsProcess.py
   main/trunk/pym/portage/__init__.py
   main/trunk/pym/portage/dbapi/bintree.py
   main/trunk/pym/portage/dbapi/vartree.py
   main/trunk/pym/portage/package/ebuild/fetch.py
   main/trunk/pym/portage/tests/ebuild/test_pty_eof.py
Log:
Split doebuild and related code to the portage.package.ebuild module.


Modified: main/trunk/pym/_emerge/AbstractEbuildProcess.py
===================================================================
--- main/trunk/pym/_emerge/AbstractEbuildProcess.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/_emerge/AbstractEbuildProcess.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -5,6 +5,7 @@
 from _emerge.SpawnProcess import SpawnProcess
 import portage
 from portage import os
+from portage.package.ebuild._pty import _create_pty_or_pipe
 
 class AbstractEbuildProcess(SpawnProcess):
 
@@ -13,7 +14,7 @@
 	def _pipe(self, fd_pipes):
 		stdout_pipe = fd_pipes.get(1)
 		got_pty, master_fd, slave_fd = \
-			portage._create_pty_or_pipe(copy_term_size=stdout_pipe)
+			_create_pty_or_pipe(copy_term_size=stdout_pipe)
 		return (master_fd, slave_fd)
 
 	def _can_log(self, slave_fd):

Modified: main/trunk/pym/_emerge/EbuildFetcher.py
===================================================================
--- main/trunk/pym/_emerge/EbuildFetcher.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/_emerge/EbuildFetcher.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -11,6 +11,7 @@
 from portage import _unicode_encode
 import codecs
 from portage.elog.messages import eerror
+from portage.package.ebuild._pty import _create_pty_or_pipe
 
 class EbuildFetcher(SpawnProcess):
 
@@ -142,7 +143,7 @@
 			return os.pipe()
 		stdout_pipe = fd_pipes.get(1)
 		got_pty, master_fd, slave_fd = \
-			portage._create_pty_or_pipe(copy_term_size=stdout_pipe)
+			_create_pty_or_pipe(copy_term_size=stdout_pipe)
 		return (master_fd, slave_fd)
 
 	def _set_returncode(self, wait_retval):

Modified: main/trunk/pym/_emerge/EbuildPhase.py
===================================================================
--- main/trunk/pym/_emerge/EbuildPhase.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/_emerge/EbuildPhase.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -5,6 +5,9 @@
 from _emerge.MiscFunctionsProcess import MiscFunctionsProcess
 from _emerge.EbuildProcess import EbuildProcess
 from _emerge.CompositeTask import CompositeTask
+from portage.package.ebuild.doebuild import _check_build_log, \
+	_post_phase_cmds, _post_src_install_chost_fix, \
+	_post_src_install_uid_fix
 from portage.util import writemsg, writemsg_stdout
 import portage
 from portage import os
@@ -18,8 +21,6 @@
 	__slots__ = ("background", "pkg", "phase",
 		"scheduler", "settings", "tree")
 
-	_post_phase_cmds = portage._post_phase_cmds
-
 	def _start(self):
 
 		ebuild_process = EbuildProcess(background=self.background,
@@ -39,7 +40,7 @@
 					encoding=_encodings['fs'], errors='strict'),
 					mode='a', encoding=_encodings['content'], errors='replace')
 			try:
-				portage._check_build_log(self.settings, out=out)
+				_check_build_log(self.settings, out=out)
 				msg = _unicode_decode(out.getvalue(),
 					encoding=_encodings['content'], errors='replace')
 				if msg:
@@ -66,12 +67,12 @@
 					encoding=_encodings['fs'], errors='strict'),
 					mode='a', encoding=_encodings['content'], errors='replace')
 				out = log_file
-			portage._post_src_install_chost_fix(settings)
-			portage._post_src_install_uid_fix(settings, out=out)
+			_post_src_install_chost_fix(settings)
+			_post_src_install_uid_fix(settings, out=out)
 			if log_file is not None:
 				log_file.close()
 
-		post_phase_cmds = self._post_phase_cmds.get(self.phase)
+		post_phase_cmds = _post_phase_cmds.get(self.phase)
 		if post_phase_cmds is not None:
 			post_phase = MiscFunctionsProcess(background=self.background,
 				commands=post_phase_cmds, phase=self.phase, pkg=self.pkg,

Modified: main/trunk/pym/_emerge/EbuildProcess.py
===================================================================
--- main/trunk/pym/_emerge/EbuildProcess.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/_emerge/EbuildProcess.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -3,8 +3,9 @@
 # $Id$
 
 from _emerge.AbstractEbuildProcess import AbstractEbuildProcess
-import portage
 from portage import os
+from portage.package.ebuild.doebuild import doebuild, \
+	_doebuild_exit_status_check_and_log, _post_phase_userpriv_perms
 
 class EbuildProcess(AbstractEbuildProcess):
 
@@ -26,8 +27,9 @@
 		settings = self.settings
 		ebuild_path = settings["EBUILD"]
 		debug = settings.get("PORTAGE_DEBUG") == "1"
+		
 
-		rval = portage.doebuild(ebuild_path, self.phase,
+		rval = doebuild(ebuild_path, self.phase,
 			root_config.root, settings, debug,
 			mydbapi=mydbapi, tree=tree, **kwargs)
 
@@ -37,12 +39,12 @@
 		AbstractEbuildProcess._set_returncode(self, wait_retval)
 
 		if self.phase not in ("clean", "cleanrm"):
-			self.returncode = portage._doebuild_exit_status_check_and_log(
+			self.returncode = _doebuild_exit_status_check_and_log(
 				self.settings, self.phase, self.returncode)
 
 		if self.phase == "test" and self.returncode != os.EX_OK and \
 			"test-fail-continue" in self.settings.features:
 			self.returncode = os.EX_OK
 
-		portage._post_phase_userpriv_perms(self.settings)
+		_post_phase_userpriv_perms(self.settings)
 

Modified: main/trunk/pym/_emerge/MiscFunctionsProcess.py
===================================================================
--- main/trunk/pym/_emerge/MiscFunctionsProcess.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/_emerge/MiscFunctionsProcess.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -5,6 +5,8 @@
 from _emerge.AbstractEbuildProcess import AbstractEbuildProcess
 import portage
 from portage import os
+from portage.package.ebuild.doebuild import spawn, \
+	_doebuild_exit_status_check_and_log, _doebuild_exit_status_unlink
 
 class MiscFunctionsProcess(AbstractEbuildProcess):
 	"""
@@ -23,7 +25,7 @@
 		self.args = [portage._shell_quote(misc_sh_binary)] + self.commands
 		self.logfile = settings.get("PORTAGE_LOG_FILE")
 
-		portage._doebuild_exit_status_unlink(
+		_doebuild_exit_status_unlink(
 			settings.get("EBUILD_EXIT_STATUS_FILE"))
 
 		AbstractEbuildProcess._start(self)
@@ -31,11 +33,11 @@
 	def _spawn(self, args, **kwargs):
 		settings = self.settings
 		debug = settings.get("PORTAGE_DEBUG") == "1"
-		return portage.spawn(" ".join(args), settings,
+		return spawn(" ".join(args), settings,
 			debug=debug, **kwargs)
 
 	def _set_returncode(self, wait_retval):
 		AbstractEbuildProcess._set_returncode(self, wait_retval)
-		self.returncode = portage._doebuild_exit_status_check_and_log(
+		self.returncode = _doebuild_exit_status_check_and_log(
 			self.settings, self.phase, self.returncode)
 

Modified: main/trunk/pym/portage/__init__.py
===================================================================
--- main/trunk/pym/portage/__init__.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/portage/__init__.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -102,9 +102,12 @@
 		'portage.manifest:Manifest',
 		'portage.output',
 		'portage.output:bold,colorize',
+		'portage.package.ebuild.doebuild:doebuild,' + \
+			'doebuild_environment,spawn,spawnebuild',
 		'portage.package.ebuild.config:autouse,best_from_dict,' + \
 			'check_config_instance,config',
 		'portage.package.ebuild.fetch:fetch',
+		'portage.package.ebuild.prepare_build_dirs:prepare_build_dirs',
 		'portage.process',
 		'portage.process:atexit_register,run_exitfuncs',
 		'portage.update:dep_transform,fixdbentries,grab_updates,' + \
@@ -997,385 +1000,6 @@
 
 	return (version,None)
 
-def _can_test_pty_eof():
-	"""
-	The _test_pty_eof() function seems to hang on most
-	kernels other than Linux.
-	This was reported for the following kernels which used to work fine
-	without this EOF test: Darwin, AIX, FreeBSD.  They seem to hang on
-	the slave_file.close() call.  Note that Python's implementation of
-	openpty on Solaris already caused random hangs without this EOF test
-	and hence is globally disabled.
-	@rtype: bool
-	@returns: True if _test_pty_eof() won't hang, False otherwise.
-	"""
-	return platform.system() in ("Linux",)
-
-def _test_pty_eof():
-	"""
-	Returns True if this issues is fixed for the currently
-	running version of python: http://bugs.python.org/issue5380
-	Raises an EnvironmentError from openpty() if it fails.
-	"""
-
-	use_fork = False
-
-	import array, fcntl, pty, select, termios
-	test_string = 2 * "blah blah blah\n"
-	test_string = _unicode_decode(test_string,
-		encoding='utf_8', errors='strict')
-
-	# may raise EnvironmentError
-	master_fd, slave_fd = pty.openpty()
-
-	# Non-blocking mode is required for Darwin kernel.
-	fcntl.fcntl(master_fd, fcntl.F_SETFL,
-		fcntl.fcntl(master_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
-
-	# Disable post-processing of output since otherwise weird
-	# things like \n -> \r\n transformations may occur.
-	mode = termios.tcgetattr(slave_fd)
-	mode[1] &= ~termios.OPOST
-	termios.tcsetattr(slave_fd, termios.TCSANOW, mode)
-
-	# Simulate a subprocess writing some data to the
-	# slave end of the pipe, and then exiting.
-	pid = None
-	if use_fork:
-		pids = process.spawn_bash(_unicode_encode("echo -n '%s'" % test_string,
-			encoding='utf_8', errors='strict'), env=os.environ,
-			fd_pipes={0:sys.stdin.fileno(), 1:slave_fd, 2:slave_fd},
-			returnpid=True)
-		if isinstance(pids, int):
-			os.close(master_fd)
-			os.close(slave_fd)
-			raise EnvironmentError('spawn failed')
-		pid = pids[0]
-	else:
-		os.write(slave_fd, _unicode_encode(test_string,
-			encoding='utf_8', errors='strict'))
-	os.close(slave_fd)
-
-	# If using a fork, we must wait for the child here,
-	# in order to avoid a race condition that would
-	# lead to inconsistent results.
-	if pid is not None:
-		os.waitpid(pid, 0)
-
-	master_file = os.fdopen(master_fd, 'rb')
-	eof = False
-	data = []
-	iwtd = [master_file]
-	owtd = []
-	ewtd = []
-
-	while not eof:
-
-		events = select.select(iwtd, owtd, ewtd)
-		if not events[0]:
-			eof = True
-			break
-
-		buf = array.array('B')
-		try:
-			buf.fromfile(master_file, 1024)
-		except EOFError:
-			eof = True
-		except IOError:
-			# This is where data loss occurs.
-			eof = True
-
-		if not buf:
-			eof = True
-		else:
-			data.append(_unicode_decode(buf.tostring(),
-				encoding='utf_8', errors='strict'))
-
-	master_file.close()
-
-	return test_string == ''.join(data)
-
-# If _test_pty_eof() can't be used for runtime detection of
-# http://bugs.python.org/issue5380, openpty can't safely be used
-# unless we can guarantee that the current version of python has
-# been fixed (affects all current versions of python3). When
-# this issue is fixed in python3, we can add another sys.hexversion
-# conditional to enable openpty support in the fixed versions.
-if sys.hexversion >= 0x3000000 and not _can_test_pty_eof():
-	_disable_openpty = True
-else:
-	# Disable the use of openpty on Solaris as it seems Python's openpty
-	# implementation doesn't play nice on Solaris with Portage's
-	# behaviour causing hangs/deadlocks.
-	# Additional note for the future: on Interix, pipes do NOT work, so
-	# _disable_openpty on Interix must *never* be True
-	_disable_openpty = platform.system() in ("SunOS",)
-_tested_pty = False
-
-if not _can_test_pty_eof():
-	# Skip _test_pty_eof() on systems where it hangs.
-	_tested_pty = True
-
-def _create_pty_or_pipe(copy_term_size=None):
-	"""
-	Try to create a pty and if then fails then create a normal
-	pipe instead.
-
-	@param copy_term_size: If a tty file descriptor is given
-		then the term size will be copied to the pty.
-	@type copy_term_size: int
-	@rtype: tuple
-	@returns: A tuple of (is_pty, master_fd, slave_fd) where
-		is_pty is True if a pty was successfully allocated, and
-		False if a normal pipe was allocated.
-	"""
-
-	got_pty = False
-
-	global _disable_openpty, _tested_pty
-	if not (_tested_pty or _disable_openpty):
-		try:
-			if not _test_pty_eof():
-				_disable_openpty = True
-		except EnvironmentError as e:
-			_disable_openpty = True
-			writemsg("openpty failed: '%s'\n" % str(e),
-				noiselevel=-1)
-			del e
-		_tested_pty = True
-
-	if _disable_openpty:
-		master_fd, slave_fd = os.pipe()
-	else:
-		from pty import openpty
-		try:
-			master_fd, slave_fd = openpty()
-			got_pty = True
-		except EnvironmentError as e:
-			_disable_openpty = True
-			writemsg("openpty failed: '%s'\n" % str(e),
-				noiselevel=-1)
-			del e
-			master_fd, slave_fd = os.pipe()
-
-	if got_pty:
-		# Disable post-processing of output since otherwise weird
-		# things like \n -> \r\n transformations may occur.
-		import termios
-		mode = termios.tcgetattr(slave_fd)
-		mode[1] &= ~termios.OPOST
-		termios.tcsetattr(slave_fd, termios.TCSANOW, mode)
-
-	if got_pty and \
-		copy_term_size is not None and \
-		os.isatty(copy_term_size):
-		from portage.output import get_term_size, set_term_size
-		rows, columns = get_term_size()
-		set_term_size(rows, columns, slave_fd)
-
-	return (got_pty, master_fd, slave_fd)
-
-# XXX This would be to replace getstatusoutput completely.
-# XXX Issue: cannot block execution. Deadlock condition.
-def spawn(mystring, mysettings, debug=0, free=0, droppriv=0, sesandbox=0, fakeroot=0, **keywords):
-	"""
-	Spawn a subprocess with extra portage-specific options.
-	Optiosn include:
-
-	Sandbox: Sandbox means the spawned process will be limited in its ability t
-	read and write files (normally this means it is restricted to ${D}/)
-	SElinux Sandbox: Enables sandboxing on SElinux
-	Reduced Privileges: Drops privilages such that the process runs as portage:portage
-	instead of as root.
-
-	Notes: os.system cannot be used because it messes with signal handling.  Instead we
-	use the portage.process spawn* family of functions.
-
-	This function waits for the process to terminate.
-
-	@param mystring: Command to run
-	@type mystring: String
-	@param mysettings: Either a Dict of Key,Value pairs or an instance of portage.config
-	@type mysettings: Dictionary or config instance
-	@param debug: Ignored
-	@type debug: Boolean
-	@param free: Enable sandboxing for this process
-	@type free: Boolean
-	@param droppriv: Drop to portage:portage when running this command
-	@type droppriv: Boolean
-	@param sesandbox: Enable SELinux Sandboxing (toggles a context switch)
-	@type sesandbox: Boolean
-	@param fakeroot: Run this command with faked root privileges
-	@type fakeroot: Boolean
-	@param keywords: Extra options encoded as a dict, to be passed to spawn
-	@type keywords: Dictionary
-	@rtype: Integer
-	@returns:
-	1. The return code of the spawned process.
-	"""
-
-	if isinstance(mysettings, dict):
-		env=mysettings
-		keywords["opt_name"]="[ %s ]" % "portage"
-	else:
-		check_config_instance(mysettings)
-		env=mysettings.environ()
-		if mysettings.mycpv is not None:
-			keywords["opt_name"] = "[%s]" % mysettings.mycpv
-		else:
-			keywords["opt_name"] = "[%s/%s]" % \
-				(mysettings.get("CATEGORY",""), mysettings.get("PF",""))
-
-	fd_pipes = keywords.get("fd_pipes")
-	if fd_pipes is None:
-		fd_pipes = {
-			0:sys.stdin.fileno(),
-			1:sys.stdout.fileno(),
-			2:sys.stderr.fileno(),
-		}
-	# In some cases the above print statements don't flush stdout, so
-	# it needs to be flushed before allowing a child process to use it
-	# so that output always shows in the correct order.
-	stdout_filenos = (sys.stdout.fileno(), sys.stderr.fileno())
-	for fd in fd_pipes.values():
-		if fd in stdout_filenos:
-			sys.stdout.flush()
-			sys.stderr.flush()
-			break
-
-	# The default policy for the sesandbox domain only allows entry (via exec)
-	# from shells and from binaries that belong to portage (the number of entry
-	# points is minimized).  The "tee" binary is not among the allowed entry
-	# points, so it is spawned outside of the sesandbox domain and reads from a
-	# pseudo-terminal that connects two domains.
-	logfile = keywords.get("logfile")
-	mypids = []
-	master_fd = None
-	slave_fd = None
-	fd_pipes_orig = None
-	got_pty = False
-	if logfile:
-		del keywords["logfile"]
-		if 1 not in fd_pipes or 2 not in fd_pipes:
-			raise ValueError(fd_pipes)
-
-		got_pty, master_fd, slave_fd = \
-			_create_pty_or_pipe(copy_term_size=fd_pipes[1])
-
-		if not got_pty and 'sesandbox' in mysettings.features \
-			and mysettings.selinux_enabled():
-			# With sesandbox, logging works through a pty but not through a
-			# normal pipe. So, disable logging if ptys are broken.
-			# See Bug #162404.
-			logfile = None
-			os.close(master_fd)
-			master_fd = None
-			os.close(slave_fd)
-			slave_fd = None
-
-	if logfile:
-
-		fd_pipes.setdefault(0, sys.stdin.fileno())
-		fd_pipes_orig = fd_pipes.copy()
-
-		# We must set non-blocking mode before we close the slave_fd
-		# since otherwise the fcntl call can fail on FreeBSD (the child
-		# process might have already exited and closed slave_fd so we
-		# have to keep it open in order to avoid FreeBSD potentially
-		# generating an EAGAIN exception).
-		import fcntl
-		fcntl.fcntl(master_fd, fcntl.F_SETFL,
-			fcntl.fcntl(master_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
-
-		fd_pipes[0] = fd_pipes_orig[0]
-		fd_pipes[1] = slave_fd
-		fd_pipes[2] = slave_fd
-		keywords["fd_pipes"] = fd_pipes
-
-	features = mysettings.features
-	# TODO: Enable fakeroot to be used together with droppriv.  The
-	# fake ownership/permissions will have to be converted to real
-	# permissions in the merge phase.
-	fakeroot = fakeroot and uid != 0 and portage.process.fakeroot_capable
-	if droppriv and not uid and portage_gid and portage_uid:
-		keywords.update({"uid":portage_uid,"gid":portage_gid,
-			"groups":userpriv_groups,"umask":0o02})
-	if not free:
-		free=((droppriv and "usersandbox" not in features) or \
-			(not droppriv and "sandbox" not in features and \
-			"usersandbox" not in features and not fakeroot))
-
-	if not free and not (fakeroot or process.sandbox_capable):
-		free = True
-
-	if free or "SANDBOX_ACTIVE" in os.environ:
-		keywords["opt_name"] += " bash"
-		spawn_func = portage.process.spawn_bash
-	elif fakeroot:
-		keywords["opt_name"] += " fakeroot"
-		keywords["fakeroot_state"] = os.path.join(mysettings["T"], "fakeroot.state")
-		spawn_func = portage.process.spawn_fakeroot
-	else:
-		keywords["opt_name"] += " sandbox"
-		spawn_func = portage.process.spawn_sandbox
-
-	if sesandbox:
-		spawn_func = selinux.spawn_wrapper(spawn_func,
-			mysettings["PORTAGE_SANDBOX_T"])
-
-	returnpid = keywords.get("returnpid")
-	keywords["returnpid"] = True
-	try:
-		mypids.extend(spawn_func(mystring, env=env, **keywords))
-	finally:
-		if logfile:
-			os.close(slave_fd)
-
-	if returnpid:
-		return mypids
-
-	if logfile:
-		log_file = open(_unicode_encode(logfile), mode='ab')
-		apply_secpass_permissions(logfile,
-			uid=portage_uid, gid=portage_gid, mode=0o664)
-		stdout_file = os.fdopen(os.dup(fd_pipes_orig[1]), 'wb')
-		master_file = os.fdopen(master_fd, 'rb')
-		iwtd = [master_file]
-		owtd = []
-		ewtd = []
-		import array, select
-		buffsize = 65536
-		eof = False
-		while not eof:
-			events = select.select(iwtd, owtd, ewtd)
-			for f in events[0]:
-				# Use non-blocking mode to prevent read
-				# calls from blocking indefinitely.
-				buf = array.array('B')
-				try:
-					buf.fromfile(f, buffsize)
-				except EOFError:
-					pass
-				if not buf:
-					eof = True
-					break
-				if f is master_file:
-					buf.tofile(stdout_file)
-					stdout_file.flush()
-					buf.tofile(log_file)
-					log_file.flush()
-		log_file.close()
-		stdout_file.close()
-		master_file.close()
-	pid = mypids[-1]
-	retval = os.waitpid(pid, 0)[1]
-	portage.process.spawned_pids.remove(pid)
-	if retval != os.EX_OK:
-		if retval & 0xff:
-			return (retval & 0xff) << 8
-		return retval >> 8
-	return retval
-
 def digestgen(myarchives=None, mysettings=None,
 	overwrite=None, manifestonly=None, myportdb=None):
 	"""
@@ -1719,498 +1343,6 @@
 					return 0
 	return 1
 
-# parse actionmap to spawn ebuild with the appropriate args
-def spawnebuild(mydo, actionmap, mysettings, debug, alwaysdep=0,
-	logfile=None, fd_pipes=None, returnpid=False):
-	if not returnpid and \
-		(alwaysdep or "noauto" not in mysettings.features):
-		# process dependency first
-		if "dep" in actionmap[mydo]:
-			retval = spawnebuild(actionmap[mydo]["dep"], actionmap,
-				mysettings, debug, alwaysdep=alwaysdep, logfile=logfile,
-				fd_pipes=fd_pipes, returnpid=returnpid)
-			if retval:
-				return retval
-
-	eapi = mysettings["EAPI"]
-
-	if mydo == "configure" and eapi in ("0", "1"):
-		return os.EX_OK
-
-	if mydo == "prepare" and eapi in ("0", "1"):
-		return os.EX_OK
-
-	if mydo == "pretend" and eapi in ("0", "1", "2", "3", "3_pre2"):
-		return os.EX_OK
-
-	kwargs = actionmap[mydo]["args"]
-	mysettings["EBUILD_PHASE"] = mydo
-	_doebuild_exit_status_unlink(
-		mysettings.get("EBUILD_EXIT_STATUS_FILE"))
-
-	try:
-		phase_retval = spawn(actionmap[mydo]["cmd"] % mydo,
-			mysettings, debug=debug, logfile=logfile,
-			fd_pipes=fd_pipes, returnpid=returnpid, **kwargs)
-	finally:
-		mysettings["EBUILD_PHASE"] = ""
-
-	if returnpid:
-		return phase_retval
-
-	msg = _doebuild_exit_status_check(mydo, mysettings)
-	if msg:
-		if phase_retval == os.EX_OK:
-			phase_retval = 1
-		from textwrap import wrap
-		from portage.elog.messages import eerror
-		for l in wrap(msg, 72):
-			eerror(l, phase=mydo, key=mysettings.mycpv)
-
-	_post_phase_userpriv_perms(mysettings)
-	if mydo == "install":
-		out = StringIO()
-		_check_build_log(mysettings, out=out)
-		msg = _unicode_decode(out.getvalue(),
-			encoding=_encodings['content'], errors='replace')
-		if msg:
-			writemsg_stdout(msg, noiselevel=-1)
-			if logfile is not None:
-				try:
-					f = codecs.open(_unicode_encode(logfile,
-						encoding=_encodings['fs'], errors='strict'),
-						mode='a', encoding=_encodings['content'],
-						errors='replace')
-				except EnvironmentError:
-					pass
-				else:
-					f.write(msg)
-					f.close()
-		if phase_retval == os.EX_OK:
-			_post_src_install_chost_fix(mysettings)
-			phase_retval = _post_src_install_checks(mysettings)
-
-	if mydo == "test" and phase_retval != os.EX_OK and \
-		"test-fail-continue" in mysettings.features:
-		phase_retval = os.EX_OK
-
-	return phase_retval
-
-_post_phase_cmds = {
-
-	"install" : [
-		"install_qa_check",
-		"install_symlink_html_docs"],
-
-	"preinst" : [
-		"preinst_bsdflags",
-		"preinst_sfperms",
-		"preinst_selinux_labels",
-		"preinst_suid_scan",
-		"preinst_mask"],
-
-	"postinst" : [
-		"postinst_bsdflags"]
-}
-
-def _post_phase_userpriv_perms(mysettings):
-	if "userpriv" in mysettings.features and secpass >= 2:
-		""" Privileged phases may have left files that need to be made
-		writable to a less privileged user."""
-		apply_recursive_permissions(mysettings["T"],
-			uid=portage_uid, gid=portage_gid, dirmode=0o70, dirmask=0,
-			filemode=0o60, filemask=0)
-
-def _post_src_install_checks(mysettings):
-	_post_src_install_uid_fix(mysettings)
-	global _post_phase_cmds
-	retval = _spawn_misc_sh(mysettings, _post_phase_cmds["install"],
-		phase='internal_post_src_install')
-	if retval != os.EX_OK:
-		writemsg(_("!!! install_qa_check failed; exiting.\n"),
-			noiselevel=-1)
-	return retval
-
-def _check_build_log(mysettings, out=None):
-	"""
-	Search the content of $PORTAGE_LOG_FILE if it exists
-	and generate the following QA Notices when appropriate:
-
-	  * Automake "maintainer mode"
-	  * command not found
-	  * Unrecognized configure options
-	"""
-	logfile = mysettings.get("PORTAGE_LOG_FILE")
-	if logfile is None:
-		return
-	try:
-		f = codecs.open(_unicode_encode(logfile,
-			encoding=_encodings['fs'], errors='strict'),
-			mode='r', encoding=_encodings['content'], errors='replace')
-	except EnvironmentError:
-		return
-
-	am_maintainer_mode = []
-	bash_command_not_found = []
-	bash_command_not_found_re = re.compile(
-		r'(.*): line (\d*): (.*): command not found$')
-	command_not_found_exclude_re = re.compile(r'/configure: line ')
-	helper_missing_file = []
-	helper_missing_file_re = re.compile(
-		r'^!!! (do|new).*: .* does not exist$')
-
-	configure_opts_warn = []
-	configure_opts_warn_re = re.compile(
-		r'^configure: WARNING: [Uu]nrecognized options: ')
-
-	# Exclude output from dev-libs/yaz-3.0.47 which looks like this:
-	#
-	#Configuration:
-	#  Automake:                   ${SHELL} /var/tmp/portage/dev-libs/yaz-3.0.47/work/yaz-3.0.47/config/missing --run automake-1.10
-	am_maintainer_mode_re = re.compile(r'/missing --run ')
-	am_maintainer_mode_exclude_re = \
-		re.compile(r'(/missing --run (autoheader|makeinfo)|^\s*Automake:\s)')
-
-	make_jobserver_re = \
-		re.compile(r'g?make\[\d+\]: warning: jobserver unavailable:')
-	make_jobserver = []
-
-	try:
-		for line in f:
-			if am_maintainer_mode_re.search(line) is not None and \
-				am_maintainer_mode_exclude_re.search(line) is None:
-				am_maintainer_mode.append(line.rstrip("\n"))
-
-			if bash_command_not_found_re.match(line) is not None and \
-				command_not_found_exclude_re.search(line) is None:
-				bash_command_not_found.append(line.rstrip("\n"))
-
-			if helper_missing_file_re.match(line) is not None:
-				helper_missing_file.append(line.rstrip("\n"))
-
-			if configure_opts_warn_re.match(line) is not None:
-				configure_opts_warn.append(line.rstrip("\n"))
-
-			if make_jobserver_re.match(line) is not None:
-				make_jobserver.append(line.rstrip("\n"))
-
-	finally:
-		f.close()
-
-	from portage.elog.messages import eqawarn
-	def _eqawarn(lines):
-		for line in lines:
-			eqawarn(line, phase="install", key=mysettings.mycpv, out=out)
-	from textwrap import wrap
-	wrap_width = 70
-
-	if am_maintainer_mode:
-		msg = [_("QA Notice: Automake \"maintainer mode\" detected:")]
-		msg.append("")
-		msg.extend("\t" + line for line in am_maintainer_mode)
-		msg.append("")
-		msg.extend(wrap(_(
-			"If you patch Makefile.am, "
-			"configure.in,  or configure.ac then you "
-			"should use autotools.eclass and "
-			"eautomake or eautoreconf. Exceptions "
-			"are limited to system packages "
-			"for which it is impossible to run "
-			"autotools during stage building. "
-			"See http://www.gentoo.org/p"
-			"roj/en/qa/autofailure.xml for more information."),
-			wrap_width))
-		_eqawarn(msg)
-
-	if bash_command_not_found:
-		msg = [_("QA Notice: command not found:")]
-		msg.append("")
-		msg.extend("\t" + line for line in bash_command_not_found)
-		_eqawarn(msg)
-
-	if helper_missing_file:
-		msg = [_("QA Notice: file does not exist:")]
-		msg.append("")
-		msg.extend("\t" + line[4:] for line in helper_missing_file)
-		_eqawarn(msg)
-
-	if configure_opts_warn:
-		msg = [_("QA Notice: Unrecognized configure options:")]
-		msg.append("")
-		msg.extend("\t" + line for line in configure_opts_warn)
-		_eqawarn(msg)
-
-	if make_jobserver:
-		msg = [_("QA Notice: make jobserver unavailable:")]
-		msg.append("")
-		msg.extend("\t" + line for line in make_jobserver)
-		_eqawarn(msg)
-
-def _post_src_install_chost_fix(settings):
-	"""
-	It's possible that the ebuild has changed the
-	CHOST variable, so revert it to the initial
-	setting.
-	"""
-	if settings.get('CATEGORY') == 'virtual':
-		return
-
-	chost = settings.get('CHOST')
-	if chost:
-		write_atomic(os.path.join(settings['PORTAGE_BUILDDIR'],
-			'build-info', 'CHOST'), chost + '\n')
-
-_vdb_use_conditional_keys = ('DEPEND', 'LICENSE', 'PDEPEND',
-	'PROPERTIES', 'PROVIDE', 'RDEPEND', 'RESTRICT',)
-_vdb_use_conditional_atoms = frozenset(['DEPEND', 'PDEPEND', 'RDEPEND'])
-
-def _post_src_install_uid_fix(mysettings, out=None):
-	"""
-	Files in $D with user and group bits that match the "portage"
-	user or group are automatically mapped to PORTAGE_INST_UID and
-	PORTAGE_INST_GID if necessary. The chown system call may clear
-	S_ISUID and S_ISGID bits, so those bits are restored if
-	necessary.
-	"""
-
-	os = _os_merge
-
-	inst_uid = int(mysettings["PORTAGE_INST_UID"])
-	inst_gid = int(mysettings["PORTAGE_INST_GID"])
-
-	if bsd_chflags:
-		# Temporarily remove all of the flags in order to avoid EPERM errors.
-		os.system("mtree -c -p %s -k flags > %s" % \
-			(_shell_quote(mysettings["D"]),
-			_shell_quote(os.path.join(mysettings["T"], "bsdflags.mtree"))))
-		os.system("chflags -R noschg,nouchg,nosappnd,nouappnd %s" % \
-			(_shell_quote(mysettings["D"]),))
-		os.system("chflags -R nosunlnk,nouunlnk %s 2>/dev/null" % \
-			(_shell_quote(mysettings["D"]),))
-
-	destdir = mysettings["D"]
-	unicode_errors = []
-
-	while True:
-
-		unicode_error = False
-		size = 0
-		counted_inodes = set()
-
-		for parent, dirs, files in os.walk(destdir):
-			try:
-				parent = _unicode_decode(parent,
-					encoding=_encodings['merge'], errors='strict')
-			except UnicodeDecodeError:
-				new_parent = _unicode_decode(parent,
-					encoding=_encodings['merge'], errors='replace')
-				new_parent = _unicode_encode(new_parent,
-					encoding=_encodings['merge'], errors='backslashreplace')
-				new_parent = _unicode_decode(new_parent,
-					encoding=_encodings['merge'], errors='replace')
-				os.rename(parent, new_parent)
-				unicode_error = True
-				unicode_errors.append(new_parent[len(destdir):])
-				break
-
-			for fname in chain(dirs, files):
-				try:
-					fname = _unicode_decode(fname,
-						encoding=_encodings['merge'], errors='strict')
-				except UnicodeDecodeError:
-					fpath = _os.path.join(
-						parent.encode(_encodings['merge']), fname)
-					new_fname = _unicode_decode(fname,
-						encoding=_encodings['merge'], errors='replace')
-					new_fname = _unicode_encode(new_fname,
-						encoding=_encodings['merge'], errors='backslashreplace')
-					new_fname = _unicode_decode(new_fname,
-						encoding=_encodings['merge'], errors='replace')
-					new_fpath = os.path.join(parent, new_fname)
-					os.rename(fpath, new_fpath)
-					unicode_error = True
-					unicode_errors.append(new_fpath[len(destdir):])
-					fname = new_fname
-					fpath = new_fpath
-				else:
-					fpath = os.path.join(parent, fname)
-
-				mystat = os.lstat(fpath)
-				if stat.S_ISREG(mystat.st_mode) and \
-					mystat.st_ino not in counted_inodes:
-					counted_inodes.add(mystat.st_ino)
-					size += mystat.st_size
-				if mystat.st_uid != portage_uid and \
-					mystat.st_gid != portage_gid:
-					continue
-				myuid = -1
-				mygid = -1
-				if mystat.st_uid == portage_uid:
-					myuid = inst_uid
-				if mystat.st_gid == portage_gid:
-					mygid = inst_gid
-				apply_secpass_permissions(
-					_unicode_encode(fpath, encoding=_encodings['merge']),
-					uid=myuid, gid=mygid,
-					mode=mystat.st_mode, stat_cached=mystat,
-					follow_links=False)
-
-			if unicode_error:
-				break
-
-		if not unicode_error:
-			break
-
-	if unicode_errors:
-		from portage.elog.messages import eerror
-		for l in _merge_unicode_error(unicode_errors):
-			eerror(l, phase='install', key=mysettings.mycpv, out=out)
-
-	build_info_dir = os.path.join(mysettings['PORTAGE_BUILDDIR'],
-		'build-info')
-
-	codecs.open(_unicode_encode(os.path.join(build_info_dir,
-		'SIZE'), encoding=_encodings['fs'], errors='strict'),
-		'w', encoding=_encodings['repo.content'],
-		errors='strict').write(str(size) + '\n')
-
-	codecs.open(_unicode_encode(os.path.join(build_info_dir,
-		'BUILD_TIME'), encoding=_encodings['fs'], errors='strict'),
-		'w', encoding=_encodings['repo.content'],
-		errors='strict').write(str(int(time.time())) + '\n')
-
-	use = frozenset(mysettings['PORTAGE_USE'].split())
-	for k in _vdb_use_conditional_keys:
-		v = mysettings.configdict['pkg'].get(k)
-		if v is None:
-			continue
-		v = dep.paren_reduce(v)
-		v = dep.use_reduce(v, uselist=use)
-		v = dep.paren_normalize(v)
-		v = dep.paren_enclose(v)
-		if not v:
-			continue
-		if v in _vdb_use_conditional_atoms:
-			v_split = []
-			for x in v.split():
-				try:
-					x = dep.Atom(x)
-				except exception.InvalidAtom:
-					v_split.append(x)
-				else:
-					v_split.append(str(x.evaluate_conditionals(use)))
-			v = ' '.join(v_split)
-		codecs.open(_unicode_encode(os.path.join(build_info_dir,
-			k), encoding=_encodings['fs'], errors='strict'),
-			mode='w', encoding=_encodings['repo.content'],
-			errors='strict').write(v + '\n')
-
-	if bsd_chflags:
-		# Restore all of the flags saved above.
-		os.system("mtree -e -p %s -U -k flags < %s > /dev/null" % \
-			(_shell_quote(mysettings["D"]),
-			_shell_quote(os.path.join(mysettings["T"], "bsdflags.mtree"))))
-
-def _merge_unicode_error(errors):
-	from textwrap import wrap
-	lines = []
-
-	msg = _("This package installs one or more file names containing "
-		"characters that do not match your current locale "
-		"settings. The current setting for filesystem encoding is '%s'.") \
-		% _encodings['merge']
-	lines.extend(wrap(msg, 72))
-
-	lines.append("")
-	errors.sort()
-	lines.extend("\t" + x for x in errors)
-	lines.append("")
-
-	if _encodings['merge'].lower().replace('_', '').replace('-', '') != 'utf8':
-		msg = _("For best results, UTF-8 encoding is recommended. See "
-			"the Gentoo Linux Localization Guide for instructions "
-			"about how to configure your locale for UTF-8 encoding:")
-		lines.extend(wrap(msg, 72))
-		lines.append("")
-		lines.append("\t" + \
-			"http://www.gentoo.org/doc/en/guide-localization.xml")
-		lines.append("")
-
-	return lines
-
-def _post_pkg_preinst_cmd(mysettings):
-	"""
-	Post phase logic and tasks that have been factored out of
-	ebuild.sh. Call preinst_mask last so that INSTALL_MASK can
-	can be used to wipe out any gmon.out files created during
-	previous functions (in case any tools were built with -pg
-	in CFLAGS).
-	"""
-
-	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
-	misc_sh_binary = os.path.join(portage_bin_path,
-		os.path.basename(MISC_SH_BINARY))
-
-	mysettings["EBUILD_PHASE"] = ""
-	global _post_phase_cmds
-	myargs = [_shell_quote(misc_sh_binary)] + _post_phase_cmds["preinst"]
-
-	return myargs
-
-def _post_pkg_postinst_cmd(mysettings):
-	"""
-	Post phase logic and tasks that have been factored out of
-	build.sh.
-	"""
-
-	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
-	misc_sh_binary = os.path.join(portage_bin_path,
-		os.path.basename(MISC_SH_BINARY))
-
-	mysettings["EBUILD_PHASE"] = ""
-	global _post_phase_cmds
-	myargs = [_shell_quote(misc_sh_binary)] + _post_phase_cmds["postinst"]
-
-	return myargs
-
-def _spawn_misc_sh(mysettings, commands, phase=None, **kwargs):
-	"""
-	@param mysettings: the ebuild config
-	@type mysettings: config
-	@param commands: a list of function names to call in misc-functions.sh
-	@type commands: list
-	@rtype: int
-	@returns: the return value from the spawn() call
-	"""
-
-	# Note: PORTAGE_BIN_PATH may differ from the global
-	# constant when portage is reinstalling itself.
-	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
-	misc_sh_binary = os.path.join(portage_bin_path,
-		os.path.basename(MISC_SH_BINARY))
-	mycommand = " ".join([_shell_quote(misc_sh_binary)] + commands)
-	_doebuild_exit_status_unlink(
-		mysettings.get("EBUILD_EXIT_STATUS_FILE"))
-	debug = mysettings.get("PORTAGE_DEBUG") == "1"
-	logfile = mysettings.get("PORTAGE_LOG_FILE")
-	mysettings.pop("EBUILD_PHASE", None)
-	try:
-		rval = spawn(mycommand, mysettings, debug=debug,
-			logfile=logfile, **kwargs)
-	finally:
-		pass
-
-	msg = _doebuild_exit_status_check(phase, mysettings)
-	if msg:
-		if rval == os.EX_OK:
-			rval = 1
-		from textwrap import wrap
-		from portage.elog.messages import eerror
-		for l in wrap(msg, 72):
-			eerror(l, phase=mydo, key=mysettings.mycpv)
-
-	return rval
-
 _testing_eapis = frozenset()
 _deprecated_eapis = frozenset(["3_pre2", "3_pre1", "2_pre3", "2_pre2", "2_pre1"])
 
@@ -2276,1331 +1408,6 @@
 		return (None, None)
 	return (m.group(1), m.group(3))
 
-def doebuild_environment(myebuild, mydo, myroot, mysettings, debug, use_cache, mydbapi):
-
-	ebuild_path = os.path.abspath(myebuild)
-	pkg_dir     = os.path.dirname(ebuild_path)
-
-	if "CATEGORY" in mysettings.configdict["pkg"]:
-		cat = mysettings.configdict["pkg"]["CATEGORY"]
-	else:
-		cat = os.path.basename(normalize_path(os.path.join(pkg_dir, "..")))
-
-	eapi = None
-	if 'parse-eapi-glep-55' in mysettings.features:
-		mypv, eapi = portage._split_ebuild_name_glep55(
-			os.path.basename(myebuild))
-	else:
-		mypv = os.path.basename(ebuild_path)[:-7]
-
-	mycpv = cat+"/"+mypv
-	mysplit = versions._pkgsplit(mypv)
-	if mysplit is None:
-		raise portage.exception.IncorrectParameter(
-			_("Invalid ebuild path: '%s'") % myebuild)
-
-	# Make a backup of PORTAGE_TMPDIR prior to calling config.reset()
-	# so that the caller can override it.
-	tmpdir = mysettings["PORTAGE_TMPDIR"]
-
-	if mydo == 'depend':
-		if mycpv != mysettings.mycpv:
-			# Don't pass in mydbapi here since the resulting aux_get
-			# call would lead to infinite 'depend' phase recursion.
-			mysettings.setcpv(mycpv)
-	else:
-		# If IUSE isn't in configdict['pkg'], it means that setcpv()
-		# hasn't been called with the mydb argument, so we have to
-		# call it here (portage code always calls setcpv properly,
-		# but api consumers might not).
-		if mycpv != mysettings.mycpv or \
-			'IUSE' not in mysettings.configdict['pkg']:
-			# Reload env.d variables and reset any previous settings.
-			mysettings.reload()
-			mysettings.reset()
-			mysettings.setcpv(mycpv, mydb=mydbapi)
-
-	# config.reset() might have reverted a change made by the caller,
-	# so restore it to it's original value.
-	mysettings["PORTAGE_TMPDIR"] = tmpdir
-
-	mysettings.pop("EBUILD_PHASE", None) # remove from backupenv
-	mysettings["EBUILD_PHASE"] = mydo
-
-	mysettings["PORTAGE_MASTER_PID"] = str(os.getpid())
-
-	# We are disabling user-specific bashrc files.
-	mysettings["BASH_ENV"] = INVALID_ENV_FILE
-
-	if debug: # Otherwise it overrides emerge's settings.
-		# We have no other way to set debug... debug can't be passed in
-		# due to how it's coded... Don't overwrite this so we can use it.
-		mysettings["PORTAGE_DEBUG"] = "1"
-
-	mysettings["EBUILD"]   = ebuild_path
-	mysettings["O"]        = pkg_dir
-	mysettings.configdict["pkg"]["CATEGORY"] = cat
-	mysettings["FILESDIR"] = pkg_dir+"/files"
-	mysettings["PF"]       = mypv
-
-	if hasattr(mydbapi, '_repo_info'):
-		mytree = os.path.dirname(os.path.dirname(pkg_dir))
-		repo_info = mydbapi._repo_info[mytree]
-		mysettings['PORTDIR'] = repo_info.portdir
-		mysettings['PORTDIR_OVERLAY'] = repo_info.portdir_overlay
-
-	mysettings["PORTDIR"] = os.path.realpath(mysettings["PORTDIR"])
-	mysettings["DISTDIR"] = os.path.realpath(mysettings["DISTDIR"])
-	mysettings["RPMDIR"]  = os.path.realpath(mysettings["RPMDIR"])
-
-	mysettings["ECLASSDIR"]   = mysettings["PORTDIR"]+"/eclass"
-	mysettings["SANDBOX_LOG"] = mycpv.replace("/", "_-_")
-
-	mysettings["PROFILE_PATHS"] = "\n".join(mysettings.profiles)
-	mysettings["P"]  = mysplit[0]+"-"+mysplit[1]
-	mysettings["PN"] = mysplit[0]
-	mysettings["PV"] = mysplit[1]
-	mysettings["PR"] = mysplit[2]
-
-	if portage.util.noiselimit < 0:
-		mysettings["PORTAGE_QUIET"] = "1"
-
-	if mydo == 'depend' and \
-		'EAPI' not in mysettings.configdict['pkg']:
-
-		if eapi is not None:
-			# From parse-eapi-glep-55 above.
-			pass
-		elif 'parse-eapi-ebuild-head' in mysettings.features:
-			eapi = _parse_eapi_ebuild_head(
-				codecs.open(_unicode_encode(ebuild_path,
-				encoding=_encodings['fs'], errors='strict'),
-				mode='r', encoding=_encodings['content'], errors='replace'))
-
-		if eapi is not None:
-			if not eapi_is_supported(eapi):
-				raise portage.exception.UnsupportedAPIException(mycpv, eapi)
-			mysettings.configdict['pkg']['EAPI'] = eapi
-
-	if mydo != "depend":
-		# Metadata vars such as EAPI and RESTRICT are
-		# set by the above config.setcpv() call.
-		eapi = mysettings["EAPI"]
-		if not eapi_is_supported(eapi):
-			# can't do anything with this.
-			raise portage.exception.UnsupportedAPIException(mycpv, eapi)
-
-	if mysplit[2] == "r0":
-		mysettings["PVR"]=mysplit[1]
-	else:
-		mysettings["PVR"]=mysplit[1]+"-"+mysplit[2]
-
-	if "PATH" in mysettings:
-		mysplit=mysettings["PATH"].split(":")
-	else:
-		mysplit=[]
-	# Note: PORTAGE_BIN_PATH may differ from the global constant
-	# when portage is reinstalling itself.
-	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
-	if portage_bin_path not in mysplit:
-		mysettings["PATH"] = portage_bin_path + ":" + mysettings["PATH"]
-
-	# Sandbox needs cannonical paths.
-	mysettings["PORTAGE_TMPDIR"] = os.path.realpath(
-		mysettings["PORTAGE_TMPDIR"])
-	mysettings["BUILD_PREFIX"] = mysettings["PORTAGE_TMPDIR"]+"/portage"
-	mysettings["PKG_TMPDIR"]   = mysettings["PORTAGE_TMPDIR"]+"/binpkgs"
-	
-	# Package {pre,post}inst and {pre,post}rm may overlap, so they must have separate
-	# locations in order to prevent interference.
-	if mydo in ("unmerge", "prerm", "postrm", "cleanrm"):
-		mysettings["PORTAGE_BUILDDIR"] = os.path.join(
-			mysettings["PKG_TMPDIR"],
-			mysettings["CATEGORY"], mysettings["PF"])
-	else:
-		mysettings["PORTAGE_BUILDDIR"] = os.path.join(
-			mysettings["BUILD_PREFIX"],
-			mysettings["CATEGORY"], mysettings["PF"])
-
-	mysettings["HOME"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "homedir")
-	mysettings["WORKDIR"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "work")
-	mysettings["D"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "image") + os.sep
-	mysettings["T"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "temp")
-
-	# Prefix forward compatability
-	mysettings["ED"] = mysettings["D"]
-
-	mysettings["PORTAGE_BASHRC"] = os.path.join(
-		mysettings["PORTAGE_CONFIGROOT"], EBUILD_SH_ENV_FILE)
-	mysettings["EBUILD_EXIT_STATUS_FILE"] = os.path.join(
-		mysettings["PORTAGE_BUILDDIR"], ".exit_status")
-
-	#set up KV variable -- DEP SPEEDUP :: Don't waste time. Keep var persistent.
-	if eapi not in ('0', '1', '2', '3', '3_pre2'):
-		# Discard KV for EAPIs that don't support it. Cache KV is restored
-		# from the backupenv whenever config.reset() is called.
-		mysettings.pop('KV', None)
-	elif mydo != 'depend' and 'KV' not in mysettings and \
-		mydo in ('compile', 'config', 'configure', 'info',
-		'install', 'nofetch', 'postinst', 'postrm', 'preinst',
-		'prepare', 'prerm', 'setup', 'test', 'unpack'):
-		mykv,err1=ExtractKernelVersion(os.path.join(myroot, "usr/src/linux"))
-		if mykv:
-			# Regular source tree
-			mysettings["KV"]=mykv
-		else:
-			mysettings["KV"]=""
-		mysettings.backup_changes("KV")
-
-	# Allow color.map to control colors associated with einfo, ewarn, etc...
-	mycolors = []
-	for c in ("GOOD", "WARN", "BAD", "HILITE", "BRACKET"):
-		mycolors.append("%s=$'%s'" % \
-			(c, portage.output.style_to_ansi_code(c)))
-	mysettings["PORTAGE_COLORMAP"] = "\n".join(mycolors)
-
-def prepare_build_dirs(myroot, mysettings, cleanup):
-
-	clean_dirs = [mysettings["HOME"]]
-
-	# We enable cleanup when we want to make sure old cruft (such as the old
-	# environment) doesn't interfere with the current phase.
-	if cleanup:
-		clean_dirs.append(mysettings["T"])
-
-	for clean_dir in clean_dirs:
-		try:
-			shutil.rmtree(clean_dir)
-		except OSError as oe:
-			if errno.ENOENT == oe.errno:
-				pass
-			elif errno.EPERM == oe.errno:
-				writemsg("%s\n" % oe, noiselevel=-1)
-				writemsg(_("Operation Not Permitted: rmtree('%s')\n") % \
-					clean_dir, noiselevel=-1)
-				return 1
-			else:
-				raise
-
-	def makedirs(dir_path):
-		try:
-			os.makedirs(dir_path)
-		except OSError as oe:
-			if errno.EEXIST == oe.errno:
-				pass
-			elif errno.EPERM == oe.errno:
-				writemsg("%s\n" % oe, noiselevel=-1)
-				writemsg(_("Operation Not Permitted: makedirs('%s')\n") % \
-					dir_path, noiselevel=-1)
-				return False
-			else:
-				raise
-		return True
-
-	mysettings["PKG_LOGDIR"] = os.path.join(mysettings["T"], "logging")
-
-	mydirs = [os.path.dirname(mysettings["PORTAGE_BUILDDIR"])]
-	mydirs.append(os.path.dirname(mydirs[-1]))
-
-	try:
-		for mydir in mydirs:
-			portage.util.ensure_dirs(mydir)
-			portage.util.apply_secpass_permissions(mydir,
-				gid=portage_gid, uid=portage_uid, mode=0o70, mask=0)
-		for dir_key in ("PORTAGE_BUILDDIR", "HOME", "PKG_LOGDIR", "T"):
-			"""These directories don't necessarily need to be group writable.
-			However, the setup phase is commonly run as a privileged user prior
-			to the other phases being run by an unprivileged user.  Currently,
-			we use the portage group to ensure that the unprivleged user still
-			has write access to these directories in any case."""
-			portage.util.ensure_dirs(mysettings[dir_key], mode=0o775)
-			portage.util.apply_secpass_permissions(mysettings[dir_key],
-				uid=portage_uid, gid=portage_gid)
-	except portage.exception.PermissionDenied as e:
-		writemsg(_("Permission Denied: %s\n") % str(e), noiselevel=-1)
-		return 1
-	except portage.exception.OperationNotPermitted as e:
-		writemsg(_("Operation Not Permitted: %s\n") % str(e), noiselevel=-1)
-		return 1
-	except portage.exception.FileNotFound as e:
-		writemsg(_("File Not Found: '%s'\n") % str(e), noiselevel=-1)
-		return 1
-
-	# Reset state for things like noauto and keepwork in FEATURES.
-	for x in ('.die_hooks',):
-		try:
-			os.unlink(os.path.join(mysettings['PORTAGE_BUILDDIR'], x))
-		except OSError:
-			pass
-
-	_prepare_workdir(mysettings)
-	if mysettings.get('EBUILD_PHASE') != 'fetch':
-		# Avoid spurious permissions adjustments when fetching with
-		# a temporary PORTAGE_TMPDIR setting (for fetchonly).
-		_prepare_features_dirs(mysettings)
-
-def _adjust_perms_msg(settings, msg):
-
-	def write(msg):
-		writemsg(msg, noiselevel=-1)
-
-	background = settings.get("PORTAGE_BACKGROUND") == "1"
-	log_path = settings.get("PORTAGE_LOG_FILE")
-	log_file = None
-
-	if background and log_path is not None:
-		try:
-			log_file = codecs.open(_unicode_encode(log_path,
-				encoding=_encodings['fs'], errors='strict'),
-				mode='a', encoding=_encodings['content'], errors='replace')
-		except IOError:
-			def write(msg):
-				pass
-		else:
-			def write(msg):
-				log_file.write(_unicode_decode(msg))
-				log_file.flush()
-
-	try:
-		write(msg)
-	finally:
-		if log_file is not None:
-			log_file.close()
-
-def _prepare_features_dirs(mysettings):
-
-	features_dirs = {
-		"ccache":{
-			"path_dir": "/usr/lib/ccache/bin",
-			"basedir_var":"CCACHE_DIR",
-			"default_dir":os.path.join(mysettings["PORTAGE_TMPDIR"], "ccache"),
-			"always_recurse":False},
-		"distcc":{
-			"path_dir": "/usr/lib/distcc/bin",
-			"basedir_var":"DISTCC_DIR",
-			"default_dir":os.path.join(mysettings["BUILD_PREFIX"], ".distcc"),
-			"subdirs":("lock", "state"),
-			"always_recurse":True}
-	}
-	dirmode  = 0o2070
-	filemode =   0o60
-	modemask =    0o2
-	restrict = mysettings.get("PORTAGE_RESTRICT","").split()
-	from portage.data import secpass
-	droppriv = secpass >= 2 and \
-		"userpriv" in mysettings.features and \
-		"userpriv" not in restrict
-	for myfeature, kwargs in features_dirs.items():
-		if myfeature in mysettings.features:
-			failure = False
-			basedir = mysettings.get(kwargs["basedir_var"])
-			if basedir is None or not basedir.strip():
-				basedir = kwargs["default_dir"]
-				mysettings[kwargs["basedir_var"]] = basedir
-			try:
-				path_dir = kwargs["path_dir"]
-				if not os.path.isdir(path_dir):
-					raise portage.exception.DirectoryNotFound(path_dir)
-
-				mydirs = [mysettings[kwargs["basedir_var"]]]
-				if "subdirs" in kwargs:
-					for subdir in kwargs["subdirs"]:
-						mydirs.append(os.path.join(basedir, subdir))
-				for mydir in mydirs:
-					modified = portage.util.ensure_dirs(mydir)
-					# Generally, we only want to apply permissions for
-					# initial creation.  Otherwise, we don't know exactly what
-					# permissions the user wants, so should leave them as-is.
-					droppriv_fix = False
-					if droppriv:
-						st = os.stat(mydir)
-						if st.st_gid != portage_gid or \
-							not dirmode == (stat.S_IMODE(st.st_mode) & dirmode):
-							droppriv_fix = True
-						if not droppriv_fix:
-							# Check permissions of files in the directory.
-							for filename in os.listdir(mydir):
-								try:
-									subdir_st = os.lstat(
-										os.path.join(mydir, filename))
-								except OSError:
-									continue
-								if subdir_st.st_gid != portage_gid or \
-									((stat.S_ISDIR(subdir_st.st_mode) and \
-									not dirmode == (stat.S_IMODE(subdir_st.st_mode) & dirmode))):
-									droppriv_fix = True
-									break
-
-					if droppriv_fix:
-						_adjust_perms_msg(mysettings,
-							colorize("WARN", " * ") + \
-							_("Adjusting permissions "
-							"for FEATURES=userpriv: '%s'\n") % mydir)
-					elif modified:
-						_adjust_perms_msg(mysettings,
-							colorize("WARN", " * ") + \
-							_("Adjusting permissions "
-							"for FEATURES=%s: '%s'\n") % (myfeature, mydir))
-
-					if modified or kwargs["always_recurse"] or droppriv_fix:
-						def onerror(e):
-							raise	# The feature is disabled if a single error
-									# occurs during permissions adjustment.
-						if not apply_recursive_permissions(mydir,
-						gid=portage_gid, dirmode=dirmode, dirmask=modemask,
-						filemode=filemode, filemask=modemask, onerror=onerror):
-							raise portage.exception.OperationNotPermitted(
-								_("Failed to apply recursive permissions for the portage group."))
-
-			except portage.exception.DirectoryNotFound as e:
-				failure = True
-				writemsg(_("\n!!! Directory does not exist: '%s'\n") % \
-					(e,), noiselevel=-1)
-				writemsg(_("!!! Disabled FEATURES='%s'\n") % myfeature,
-					noiselevel=-1)
-
-			except portage.exception.PortageException as e:
-				failure = True
-				writemsg("\n!!! %s\n" % str(e), noiselevel=-1)
-				writemsg(_("!!! Failed resetting perms on %s='%s'\n") % \
-					(kwargs["basedir_var"], basedir), noiselevel=-1)
-				writemsg(_("!!! Disabled FEATURES='%s'\n") % myfeature,
-					noiselevel=-1)
-
-			if failure:
-				mysettings.features.remove(myfeature)
-				mysettings['FEATURES'] = ' '.join(sorted(mysettings.features))
-				time.sleep(5)
-
-def _prepare_workdir(mysettings):
-	workdir_mode = 0o700
-	try:
-		mode = mysettings["PORTAGE_WORKDIR_MODE"]
-		if mode.isdigit():
-			parsed_mode = int(mode, 8)
-		elif mode == "":
-			raise KeyError()
-		else:
-			raise ValueError()
-		if parsed_mode & 0o7777 != parsed_mode:
-			raise ValueError("Invalid file mode: %s" % mode)
-		else:
-			workdir_mode = parsed_mode
-	except KeyError as e:
-		writemsg(_("!!! PORTAGE_WORKDIR_MODE is unset, using %s.\n") % oct(workdir_mode))
-	except ValueError as e:
-		if len(str(e)) > 0:
-			writemsg("%s\n" % e)
-		writemsg(_("!!! Unable to parse PORTAGE_WORKDIR_MODE='%s', using %s.\n") % \
-		(mysettings["PORTAGE_WORKDIR_MODE"], oct(workdir_mode)))
-	mysettings["PORTAGE_WORKDIR_MODE"] = oct(workdir_mode).replace('o', '')
-	try:
-		apply_secpass_permissions(mysettings["WORKDIR"],
-		uid=portage_uid, gid=portage_gid, mode=workdir_mode)
-	except portage.exception.FileNotFound:
-		pass # ebuild.sh will create it
-
-	if mysettings.get("PORT_LOGDIR", "") == "":
-		while "PORT_LOGDIR" in mysettings:
-			del mysettings["PORT_LOGDIR"]
-	if "PORT_LOGDIR" in mysettings:
-		try:
-			modified = portage.util.ensure_dirs(mysettings["PORT_LOGDIR"])
-			if modified:
-				apply_secpass_permissions(mysettings["PORT_LOGDIR"],
-					uid=portage_uid, gid=portage_gid, mode=0o2770)
-		except portage.exception.PortageException as e:
-			writemsg("!!! %s\n" % str(e), noiselevel=-1)
-			writemsg(_("!!! Permission issues with PORT_LOGDIR='%s'\n") % \
-				mysettings["PORT_LOGDIR"], noiselevel=-1)
-			writemsg(_("!!! Disabling logging.\n"), noiselevel=-1)
-			while "PORT_LOGDIR" in mysettings:
-				del mysettings["PORT_LOGDIR"]
-	if "PORT_LOGDIR" in mysettings and \
-		os.access(mysettings["PORT_LOGDIR"], os.W_OK):
-		logid_path = os.path.join(mysettings["PORTAGE_BUILDDIR"], ".logid")
-		if not os.path.exists(logid_path):
-			open(_unicode_encode(logid_path), 'w')
-		logid_time = _unicode_decode(time.strftime("%Y%m%d-%H%M%S",
-			time.gmtime(os.stat(logid_path).st_mtime)),
-			encoding=_encodings['content'], errors='replace')
-
-		if "split-log" in mysettings.features:
-			mysettings["PORTAGE_LOG_FILE"] = os.path.join(
-				mysettings["PORT_LOGDIR"], "build", "%s/%s:%s.log" % \
-				(mysettings["CATEGORY"], mysettings["PF"], logid_time))
-		else:
-			mysettings["PORTAGE_LOG_FILE"] = os.path.join(
-				mysettings["PORT_LOGDIR"], "%s:%s:%s.log" % \
-				(mysettings["CATEGORY"], mysettings["PF"], logid_time))
-
-		util.ensure_dirs(os.path.dirname(mysettings["PORTAGE_LOG_FILE"]))
-
-	else:
-		# NOTE: When sesandbox is enabled, the local SELinux security policies
-		# may not allow output to be piped out of the sesandbox domain. The
-		# current policy will allow it to work when a pty is available, but
-		# not through a normal pipe. See bug #162404.
-		mysettings["PORTAGE_LOG_FILE"] = os.path.join(
-			mysettings["T"], "build.log")
-
-def _doebuild_exit_status_check(mydo, settings):
-	"""
-	Returns an error string if the shell appeared
-	to exit unsuccessfully, None otherwise.
-	"""
-	exit_status_file = settings.get("EBUILD_EXIT_STATUS_FILE")
-	if not exit_status_file or \
-		os.path.exists(exit_status_file):
-		return None
-	msg = _("The ebuild phase '%s' has exited "
-	"unexpectedly. This type of behavior "
-	"is known to be triggered "
-	"by things such as failed variable "
-	"assignments (bug #190128) or bad substitution "
-	"errors (bug #200313). Normally, before exiting, bash should "
-	"have displayed an error message above. If bash did not "
-	"produce an error message above, it's possible "
-	"that the ebuild has called `exit` when it "
-	"should have called `die` instead. This behavior may also "
-	"be triggered by a corrupt bash binary or a hardware "
-	"problem such as memory or cpu malfunction. If the problem is not "
-	"reproducible or it appears to occur randomly, then it is likely "
-	"to be triggered by a hardware problem. "
-	"If you suspect a hardware problem then you should "
-	"try some basic hardware diagnostics such as memtest. "
-	"Please do not report this as a bug unless it is consistently "
-	"reproducible and you are sure that your bash binary and hardware "
-	"are functioning properly.") % mydo
-	return msg
-
-def _doebuild_exit_status_check_and_log(settings, mydo, retval):
-	msg = _doebuild_exit_status_check(mydo, settings)
-	if msg:
-		if retval == os.EX_OK:
-			retval = 1
-		from textwrap import wrap
-		from portage.elog.messages import eerror
-		for l in wrap(msg, 72):
-			eerror(l, phase=mydo, key=settings.mycpv)
-	return retval
-
-def _doebuild_exit_status_unlink(exit_status_file):
-	"""
-	Double check to make sure it really doesn't exist
-	and raise an OSError if it still does (it shouldn't).
-	OSError if necessary.
-	"""
-	if not exit_status_file:
-		return
-	try:
-		os.unlink(exit_status_file)
-	except OSError:
-		pass
-	if os.path.exists(exit_status_file):
-		os.unlink(exit_status_file)
-
-_doebuild_manifest_exempt_depend = 0
-_doebuild_manifest_cache = None
-_doebuild_broken_ebuilds = set()
-_doebuild_broken_manifests = set()
-
-def doebuild(myebuild, mydo, myroot, mysettings, debug=0, listonly=0,
-	fetchonly=0, cleanup=0, dbkey=None, use_cache=1, fetchall=0, tree=None,
-	mydbapi=None, vartree=None, prev_mtimes=None,
-	fd_pipes=None, returnpid=False):
-
-	"""
-	Wrapper function that invokes specific ebuild phases through the spawning
-	of ebuild.sh
-	
-	@param myebuild: name of the ebuild to invoke the phase on (CPV)
-	@type myebuild: String
-	@param mydo: Phase to run
-	@type mydo: String
-	@param myroot: $ROOT (usually '/', see man make.conf)
-	@type myroot: String
-	@param mysettings: Portage Configuration
-	@type mysettings: instance of portage.config
-	@param debug: Turns on various debug information (eg, debug for spawn)
-	@type debug: Boolean
-	@param listonly: Used to wrap fetch(); passed such that fetch only lists files required.
-	@type listonly: Boolean
-	@param fetchonly: Used to wrap fetch(); passed such that files are only fetched (no other actions)
-	@type fetchonly: Boolean
-	@param cleanup: Passed to prepare_build_dirs (TODO: what does it do?)
-	@type cleanup: Boolean
-	@param dbkey: A dict (usually keys and values from the depend phase, such as KEYWORDS, USE, etc..)
-	@type dbkey: Dict or String
-	@param use_cache: Enables the cache
-	@type use_cache: Boolean
-	@param fetchall: Used to wrap fetch(), fetches all URIs (even ones invalid due to USE conditionals)
-	@type fetchall: Boolean
-	@param tree: Which tree to use ('vartree','porttree','bintree', etc..), defaults to 'porttree'
-	@type tree: String
-	@param mydbapi: a dbapi instance to pass to various functions; this should be a portdbapi instance.
-	@type mydbapi: portdbapi instance
-	@param vartree: A instance of vartree; used for aux_get calls, defaults to db[myroot]['vartree']
-	@type vartree: vartree instance
-	@param prev_mtimes: A dict of { filename:mtime } keys used by merge() to do config_protection
-	@type prev_mtimes: dictionary
-	@param fd_pipes: A dict of mapping for pipes, { '0': stdin, '1': stdout }
-		for example.
-	@type fd_pipes: Dictionary
-	@param returnpid: Return a list of process IDs for a successful spawn, or
-		an integer value if spawn is unsuccessful. NOTE: This requires the
-		caller clean up all returned PIDs.
-	@type returnpid: Boolean
-	@rtype: Boolean
-	@returns:
-	1. 0 for success
-	2. 1 for error
-	
-	Most errors have an accompanying error message.
-	
-	listonly and fetchonly are only really necessary for operations involving 'fetch'
-	prev_mtimes are only necessary for merge operations.
-	Other variables may not be strictly required, many have defaults that are set inside of doebuild.
-	
-	"""
-	
-	if not tree:
-		writemsg("Warning: tree not specified to doebuild\n")
-		tree = "porttree"
-	global db
-	
-	# chunked out deps for each phase, so that ebuild binary can use it 
-	# to collapse targets down.
-	actionmap_deps={
-	"setup":  [],
-	"unpack": ["setup"],
-	"prepare": ["unpack"],
-	"configure": ["prepare"],
-	"compile":["configure"],
-	"test":   ["compile"],
-	"install":["test"],
-	"rpm":    ["install"],
-	"package":["install"],
-	}
-	
-	if mydbapi is None:
-		mydbapi = db[myroot][tree].dbapi
-
-	if vartree is None and mydo in ("merge", "qmerge", "unmerge"):
-		vartree = db[myroot]["vartree"]
-
-	features = mysettings.features
-	noauto = "noauto" in features
-	from portage.data import secpass
-
-	clean_phases = ("clean", "cleanrm")
-	validcommands = ["help","clean","prerm","postrm","cleanrm","preinst","postinst",
-	                "config", "info", "setup", "depend", "pretend",
-	                "fetch", "fetchall", "digest",
-	                "unpack", "prepare", "configure", "compile", "test",
-	                "install", "rpm", "qmerge", "merge",
-	                "package","unmerge", "manifest"]
-
-	if mydo not in validcommands:
-		validcommands.sort()
-		writemsg("!!! doebuild: '%s' is not one of the following valid commands:" % mydo,
-			noiselevel=-1)
-		for vcount in range(len(validcommands)):
-			if vcount%6 == 0:
-				writemsg("\n!!! ", noiselevel=-1)
-			writemsg(validcommands[vcount].ljust(11), noiselevel=-1)
-		writemsg("\n", noiselevel=-1)
-		return 1
-
-	if mydo == "fetchall":
-		fetchall = 1
-		mydo = "fetch"
-
-	parallel_fetchonly = mydo in ("fetch", "fetchall") and \
-		"PORTAGE_PARALLEL_FETCHONLY" in mysettings
-
-	if mydo not in clean_phases and not os.path.exists(myebuild):
-		writemsg("!!! doebuild: %s not found for %s\n" % (myebuild, mydo),
-			noiselevel=-1)
-		return 1
-
-	global _doebuild_manifest_exempt_depend
-
-	if "strict" in features and \
-		"digest" not in features and \
-		tree == "porttree" and \
-		mydo not in ("digest", "manifest", "help") and \
-		not _doebuild_manifest_exempt_depend:
-		# Always verify the ebuild checksums before executing it.
-		global _doebuild_manifest_cache, _doebuild_broken_ebuilds, \
-			_doebuild_broken_ebuilds
-
-		if myebuild in _doebuild_broken_ebuilds:
-			return 1
-
-		pkgdir = os.path.dirname(myebuild)
-		manifest_path = os.path.join(pkgdir, "Manifest")
-
-		# Avoid checking the same Manifest several times in a row during a
-		# regen with an empty cache.
-		if _doebuild_manifest_cache is None or \
-			_doebuild_manifest_cache.getFullname() != manifest_path:
-			_doebuild_manifest_cache = None
-			if not os.path.exists(manifest_path):
-				out = portage.output.EOutput()
-				out.eerror(_("Manifest not found for '%s'") % (myebuild,))
-				_doebuild_broken_ebuilds.add(myebuild)
-				return 1
-			mf = Manifest(pkgdir, mysettings["DISTDIR"])
-
-		else:
-			mf = _doebuild_manifest_cache
-
-		try:
-			mf.checkFileHashes("EBUILD", os.path.basename(myebuild))
-		except KeyError:
-			out = portage.output.EOutput()
-			out.eerror(_("Missing digest for '%s'") % (myebuild,))
-			_doebuild_broken_ebuilds.add(myebuild)
-			return 1
-		except portage.exception.FileNotFound:
-			out = portage.output.EOutput()
-			out.eerror(_("A file listed in the Manifest "
-				"could not be found: '%s'") % (myebuild,))
-			_doebuild_broken_ebuilds.add(myebuild)
-			return 1
-		except portage.exception.DigestException as e:
-			out = portage.output.EOutput()
-			out.eerror(_("Digest verification failed:"))
-			out.eerror("%s" % e.value[0])
-			out.eerror(_("Reason: %s") % e.value[1])
-			out.eerror(_("Got: %s") % e.value[2])
-			out.eerror(_("Expected: %s") % e.value[3])
-			_doebuild_broken_ebuilds.add(myebuild)
-			return 1
-
-		if mf.getFullname() in _doebuild_broken_manifests:
-			return 1
-
-		if mf is not _doebuild_manifest_cache:
-
-			# Make sure that all of the ebuilds are
-			# actually listed in the Manifest.
-			glep55 = 'parse-eapi-glep-55' in mysettings.features
-			for f in os.listdir(pkgdir):
-				pf = None
-				if glep55:
-					pf, eapi = _split_ebuild_name_glep55(f)
-				elif f[-7:] == '.ebuild':
-					pf = f[:-7]
-				if pf is not None and not mf.hasFile("EBUILD", f):
-					f = os.path.join(pkgdir, f)
-					if f not in _doebuild_broken_ebuilds:
-						out = portage.output.EOutput()
-						out.eerror(_("A file is not listed in the "
-							"Manifest: '%s'") % (f,))
-					_doebuild_broken_manifests.add(manifest_path)
-					return 1
-
-			# Only cache it if the above stray files test succeeds.
-			_doebuild_manifest_cache = mf
-
-	def exit_status_check(retval):
-		msg = _doebuild_exit_status_check(mydo, mysettings)
-		if msg:
-			if retval == os.EX_OK:
-				retval = 1
-			from textwrap import wrap
-			from portage.elog.messages import eerror
-			for l in wrap(msg, 72):
-				eerror(l, phase=mydo, key=mysettings.mycpv)
-		return retval
-
-	# Note: PORTAGE_BIN_PATH may differ from the global
-	# constant when portage is reinstalling itself.
-	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
-	ebuild_sh_binary = os.path.join(portage_bin_path,
-		os.path.basename(EBUILD_SH_BINARY))
-	misc_sh_binary = os.path.join(portage_bin_path,
-		os.path.basename(MISC_SH_BINARY))
-
-	logfile=None
-	builddir_lock = None
-	tmpdir = None
-	tmpdir_orig = None
-
-	try:
-		if mydo in ("digest", "manifest", "help"):
-			# Temporarily exempt the depend phase from manifest checks, in case
-			# aux_get calls trigger cache generation.
-			_doebuild_manifest_exempt_depend += 1
-
-		# If we don't need much space and we don't need a constant location,
-		# we can temporarily override PORTAGE_TMPDIR with a random temp dir
-		# so that there's no need for locking and it can be used even if the
-		# user isn't in the portage group.
-		if mydo in ("info",):
-			from tempfile import mkdtemp
-			tmpdir = mkdtemp()
-			tmpdir_orig = mysettings["PORTAGE_TMPDIR"]
-			mysettings["PORTAGE_TMPDIR"] = tmpdir
-
-		doebuild_environment(myebuild, mydo, myroot, mysettings, debug,
-			use_cache, mydbapi)
-
-		if mydo in clean_phases:
-			retval = spawn(_shell_quote(ebuild_sh_binary) + " clean",
-				mysettings, debug=debug, fd_pipes=fd_pipes, free=1,
-				logfile=None, returnpid=returnpid)
-			return retval
-
-		restrict = set(mysettings.get('PORTAGE_RESTRICT', '').split())
-		# get possible slot information from the deps file
-		if mydo == "depend":
-			writemsg("!!! DEBUG: dbkey: %s\n" % str(dbkey), 2)
-			droppriv = "userpriv" in mysettings.features
-			if returnpid:
-				mypids = spawn(_shell_quote(ebuild_sh_binary) + " depend",
-					mysettings, fd_pipes=fd_pipes, returnpid=True,
-					droppriv=droppriv)
-				return mypids
-			elif isinstance(dbkey, dict):
-				mysettings["dbkey"] = ""
-				pr, pw = os.pipe()
-				fd_pipes = {
-					0:sys.stdin.fileno(),
-					1:sys.stdout.fileno(),
-					2:sys.stderr.fileno(),
-					9:pw}
-				mypids = spawn(_shell_quote(ebuild_sh_binary) + " depend",
-					mysettings,
-					fd_pipes=fd_pipes, returnpid=True, droppriv=droppriv)
-				os.close(pw) # belongs exclusively to the child process now
-				f = os.fdopen(pr, 'rb')
-				for k, v in zip(auxdbkeys,
-					(_unicode_decode(line).rstrip('\n') for line in f)):
-					dbkey[k] = v
-				f.close()
-				retval = os.waitpid(mypids[0], 0)[1]
-				portage.process.spawned_pids.remove(mypids[0])
-				# If it got a signal, return the signal that was sent, but
-				# shift in order to distinguish it from a return value. (just
-				# like portage.process.spawn() would do).
-				if retval & 0xff:
-					retval = (retval & 0xff) << 8
-				else:
-					# Otherwise, return its exit code.
-					retval = retval >> 8
-				if retval == os.EX_OK and len(dbkey) != len(auxdbkeys):
-					# Don't trust bash's returncode if the
-					# number of lines is incorrect.
-					retval = 1
-				return retval
-			elif dbkey:
-				mysettings["dbkey"] = dbkey
-			else:
-				mysettings["dbkey"] = \
-					os.path.join(mysettings.depcachedir, "aux_db_key_temp")
-
-			return spawn(_shell_quote(ebuild_sh_binary) + " depend",
-				mysettings,
-				droppriv=droppriv)
-
-		# Validate dependency metadata here to ensure that ebuilds with invalid
-		# data are never installed via the ebuild command. Don't bother when
-		# returnpid == True since there's no need to do this every time emerge
-		# executes a phase.
-		if not returnpid:
-			rval = _validate_deps(mysettings, myroot, mydo, mydbapi)
-			if rval != os.EX_OK:
-				return rval
-
-		if "PORTAGE_TMPDIR" not in mysettings or \
-			not os.path.isdir(mysettings["PORTAGE_TMPDIR"]):
-			writemsg(_("The directory specified in your "
-				"PORTAGE_TMPDIR variable, '%s',\n"
-				"does not exist.  Please create this directory or "
-				"correct your PORTAGE_TMPDIR setting.\n") % mysettings.get("PORTAGE_TMPDIR", ""), noiselevel=-1)
-			return 1
-		
-		# as some people use a separate PORTAGE_TMPDIR mount
-		# we prefer that as the checks below would otherwise be pointless
-		# for those people.
-		if os.path.exists(os.path.join(mysettings["PORTAGE_TMPDIR"], "portage")):
-			checkdir = os.path.join(mysettings["PORTAGE_TMPDIR"], "portage")
-		else:
-			checkdir = mysettings["PORTAGE_TMPDIR"]
-
-		if not os.access(checkdir, os.W_OK):
-			writemsg(_("%s is not writable.\n"
-				"Likely cause is that you've mounted it as readonly.\n") % checkdir,
-				noiselevel=-1)
-			return 1
-		else:
-			from tempfile import NamedTemporaryFile
-			fd = NamedTemporaryFile(prefix="exectest-", dir=checkdir)
-			os.chmod(fd.name, 0o755)
-			if not os.access(fd.name, os.X_OK):
-				writemsg(_("Can not execute files in %s\n"
-					"Likely cause is that you've mounted it with one of the\n"
-					"following mount options: 'noexec', 'user', 'users'\n\n"
-					"Please make sure that portage can execute files in this directory.\n") % checkdir,
-					noiselevel=-1)
-				fd.close()
-				return 1
-			fd.close()
-		del checkdir
-
-		if mydo == "unmerge":
-			return unmerge(mysettings["CATEGORY"],
-				mysettings["PF"], myroot, mysettings, vartree=vartree)
-
-		# Build directory creation isn't required for any of these.
-		# In the fetch phase, the directory is needed only for RESTRICT=fetch
-		# in order to satisfy the sane $PWD requirement (from bug #239560)
-		# when pkg_nofetch is spawned.
-		have_build_dirs = False
-		if not parallel_fetchonly and \
-			mydo not in ('digest', 'help', 'manifest') and \
-			not (mydo == 'fetch' and 'fetch' not in restrict):
-			mystatus = prepare_build_dirs(myroot, mysettings, cleanup)
-			if mystatus:
-				return mystatus
-			have_build_dirs = True
-
-			# emerge handles logging externally
-			if not returnpid:
-				# PORTAGE_LOG_FILE is set by the
-				# above prepare_build_dirs() call.
-				logfile = mysettings.get("PORTAGE_LOG_FILE")
-
-		if have_build_dirs:
-			env_file = os.path.join(mysettings["T"], "environment")
-			env_stat = None
-			saved_env = None
-			try:
-				env_stat = os.stat(env_file)
-			except OSError as e:
-				if e.errno != errno.ENOENT:
-					raise
-				del e
-			if not env_stat:
-				saved_env = os.path.join(
-					os.path.dirname(myebuild), "environment.bz2")
-				if not os.path.isfile(saved_env):
-					saved_env = None
-			if saved_env:
-				retval = os.system(
-					"bzip2 -dc %s > %s" % \
-					(_shell_quote(saved_env),
-					_shell_quote(env_file)))
-				try:
-					env_stat = os.stat(env_file)
-				except OSError as e:
-					if e.errno != errno.ENOENT:
-						raise
-					del e
-				if os.WIFEXITED(retval) and \
-					os.WEXITSTATUS(retval) == os.EX_OK and \
-					env_stat and env_stat.st_size > 0:
-					# This is a signal to ebuild.sh, so that it knows to filter
-					# out things like SANDBOX_{DENY,PREDICT,READ,WRITE} that
-					# would be preserved between normal phases.
-					open(_unicode_encode(env_file + '.raw'), 'w')
-				else:
-					writemsg(_("!!! Error extracting saved "
-						"environment: '%s'\n") % \
-						saved_env, noiselevel=-1)
-					try:
-						os.unlink(env_file)
-					except OSError as e:
-						if e.errno != errno.ENOENT:
-							raise
-						del e
-					env_stat = None
-			if env_stat:
-				pass
-			else:
-				for var in ("ARCH", ):
-					value = mysettings.get(var)
-					if value and value.strip():
-						continue
-					msg = _("%(var)s is not set... "
-						"Are you missing the '%(configroot)setc/make.profile' symlink? "
-						"Is the symlink correct? "
-						"Is your portage tree complete?") % \
-						{"var": var, "configroot": mysettings["PORTAGE_CONFIGROOT"]}
-					from portage.elog.messages import eerror
-					from textwrap import wrap
-					for line in wrap(msg, 70):
-						eerror(line, phase="setup", key=mysettings.mycpv)
-					from portage.elog import elog_process
-					elog_process(mysettings.mycpv, mysettings)
-					return 1
-			del env_file, env_stat, saved_env
-			_doebuild_exit_status_unlink(
-				mysettings.get("EBUILD_EXIT_STATUS_FILE"))
-		else:
-			mysettings.pop("EBUILD_EXIT_STATUS_FILE", None)
-
-		# if any of these are being called, handle them -- running them out of
-		# the sandbox -- and stop now.
-		if mydo == "help":
-			return spawn(_shell_quote(ebuild_sh_binary) + " " + mydo,
-				mysettings, debug=debug, free=1, logfile=logfile)
-		elif mydo == "setup":
-			retval = spawn(
-				_shell_quote(ebuild_sh_binary) + " " + mydo, mysettings,
-				debug=debug, free=1, logfile=logfile, fd_pipes=fd_pipes,
-				returnpid=returnpid)
-			if returnpid:
-				return retval
-			retval = exit_status_check(retval)
-			if secpass >= 2:
-				""" Privileged phases may have left files that need to be made
-				writable to a less privileged user."""
-				apply_recursive_permissions(mysettings["T"],
-					uid=portage_uid, gid=portage_gid, dirmode=0o70, dirmask=0,
-					filemode=0o60, filemask=0)
-			return retval
-		elif mydo == "preinst":
-			phase_retval = spawn(
-				_shell_quote(ebuild_sh_binary) + " " + mydo,
-				mysettings, debug=debug, free=1, logfile=logfile,
-				fd_pipes=fd_pipes, returnpid=returnpid)
-
-			if returnpid:
-				return phase_retval
-
-			phase_retval = exit_status_check(phase_retval)
-			if phase_retval == os.EX_OK:
-				_doebuild_exit_status_unlink(
-					mysettings.get("EBUILD_EXIT_STATUS_FILE"))
-				mysettings.pop("EBUILD_PHASE", None)
-				phase_retval = spawn(
-					" ".join(_post_pkg_preinst_cmd(mysettings)),
-					mysettings, debug=debug, free=1, logfile=logfile)
-				phase_retval = exit_status_check(phase_retval)
-				if phase_retval != os.EX_OK:
-					writemsg(_("!!! post preinst failed; exiting.\n"),
-						noiselevel=-1)
-			return phase_retval
-		elif mydo == "postinst":
-			phase_retval = spawn(
-				_shell_quote(ebuild_sh_binary) + " " + mydo,
-				mysettings, debug=debug, free=1, logfile=logfile,
-				fd_pipes=fd_pipes, returnpid=returnpid)
-
-			if returnpid:
-				return phase_retval
-
-			phase_retval = exit_status_check(phase_retval)
-			if phase_retval == os.EX_OK:
-				_doebuild_exit_status_unlink(
-					mysettings.get("EBUILD_EXIT_STATUS_FILE"))
-				mysettings.pop("EBUILD_PHASE", None)
-				phase_retval = spawn(" ".join(_post_pkg_postinst_cmd(mysettings)),
-					mysettings, debug=debug, free=1, logfile=logfile)
-				phase_retval = exit_status_check(phase_retval)
-				if phase_retval != os.EX_OK:
-					writemsg(_("!!! post postinst failed; exiting.\n"),
-						noiselevel=-1)
-			return phase_retval
-		elif mydo in ("prerm", "postrm", "config", "info"):
-			retval =  spawn(
-				_shell_quote(ebuild_sh_binary) + " " + mydo,
-				mysettings, debug=debug, free=1, logfile=logfile,
-				fd_pipes=fd_pipes, returnpid=returnpid)
-
-			if returnpid:
-				return retval
-
-			retval = exit_status_check(retval)
-			return retval
-
-		mycpv = "/".join((mysettings["CATEGORY"], mysettings["PF"]))
-
-		emerge_skip_distfiles = returnpid
-		emerge_skip_digest = returnpid
-		# Only try and fetch the files if we are going to need them ...
-		# otherwise, if user has FEATURES=noauto and they run `ebuild clean
-		# unpack compile install`, we will try and fetch 4 times :/
-		need_distfiles = not emerge_skip_distfiles and \
-			(mydo in ("fetch", "unpack") or \
-			mydo not in ("digest", "manifest") and "noauto" not in features)
-		alist = mysettings.configdict["pkg"].get("A")
-		aalist = mysettings.configdict["pkg"].get("AA")
-		if alist is None or aalist is None:
-			# Make sure we get the correct tree in case there are overlays.
-			mytree = os.path.realpath(
-				os.path.dirname(os.path.dirname(mysettings["O"])))
-			useflags = mysettings["PORTAGE_USE"].split()
-			try:
-				alist = mydbapi.getFetchMap(mycpv, useflags=useflags,
-					mytree=mytree)
-				aalist = mydbapi.getFetchMap(mycpv, mytree=mytree)
-			except portage.exception.InvalidDependString as e:
-				writemsg("!!! %s\n" % str(e), noiselevel=-1)
-				writemsg(_("!!! Invalid SRC_URI for '%s'.\n") % mycpv,
-					noiselevel=-1)
-				del e
-				return 1
-			mysettings.configdict["pkg"]["A"] = " ".join(alist)
-			mysettings.configdict["pkg"]["AA"] = " ".join(aalist)
-		else:
-			alist = set(alist.split())
-			aalist = set(aalist.split())
-		if ("mirror" in features) or fetchall:
-			fetchme = aalist
-			checkme = aalist
-		else:
-			fetchme = alist
-			checkme = alist
-
-		if mydo == "fetch":
-			# Files are already checked inside fetch(),
-			# so do not check them again.
-			checkme = []
-
-		if not emerge_skip_distfiles and \
-			need_distfiles and not fetch(
-			fetchme, mysettings, listonly=listonly, fetchonly=fetchonly):
-			return 1
-
-		if mydo == "fetch" and listonly:
-			return 0
-
-		try:
-			if mydo == "manifest":
-				return not digestgen(mysettings=mysettings, myportdb=mydbapi)
-			elif mydo == "digest":
-				return not digestgen(mysettings=mysettings, myportdb=mydbapi)
-			elif mydo != 'fetch' and not emerge_skip_digest and \
-				"digest" in mysettings.features:
-				# Don't do this when called by emerge or when called just
-				# for fetch (especially parallel-fetch) since it's not needed
-				# and it can interfere with parallel tasks.
-				digestgen(mysettings=mysettings, myportdb=mydbapi)
-		except portage.exception.PermissionDenied as e:
-			writemsg(_("!!! Permission Denied: %s\n") % (e,), noiselevel=-1)
-			if mydo in ("digest", "manifest"):
-				return 1
-
-		# See above comment about fetching only when needed
-		if not emerge_skip_distfiles and \
-			not digestcheck(checkme, mysettings, "strict" in features):
-			return 1
-
-		if mydo == "fetch":
-			return 0
-
-		# remove PORTAGE_ACTUAL_DISTDIR once cvs/svn is supported via SRC_URI
-		if (mydo != "setup" and "noauto" not in features) or mydo == "unpack":
-			orig_distdir = mysettings["DISTDIR"]
-			mysettings["PORTAGE_ACTUAL_DISTDIR"] = orig_distdir
-			edpath = mysettings["DISTDIR"] = \
-				os.path.join(mysettings["PORTAGE_BUILDDIR"], "distdir")
-			portage.util.ensure_dirs(edpath, gid=portage_gid, mode=0o755)
-
-			# Remove any unexpected files or directories.
-			for x in os.listdir(edpath):
-				symlink_path = os.path.join(edpath, x)
-				st = os.lstat(symlink_path)
-				if x in alist and stat.S_ISLNK(st.st_mode):
-					continue
-				if stat.S_ISDIR(st.st_mode):
-					shutil.rmtree(symlink_path)
-				else:
-					os.unlink(symlink_path)
-
-			# Check for existing symlinks and recreate if necessary.
-			for x in alist:
-				symlink_path = os.path.join(edpath, x)
-				target = os.path.join(orig_distdir, x)
-				try:
-					link_target = os.readlink(symlink_path)
-				except OSError:
-					os.symlink(target, symlink_path)
-				else:
-					if link_target != target:
-						os.unlink(symlink_path)
-						os.symlink(target, symlink_path)
-
-		#initial dep checks complete; time to process main commands
-
-		restrict = mysettings["PORTAGE_RESTRICT"].split()
-		nosandbox = (("userpriv" in features) and \
-			("usersandbox" not in features) and \
-			"userpriv" not in restrict and \
-			"nouserpriv" not in restrict)
-		if nosandbox and ("userpriv" not in features or \
-			"userpriv" in restrict or \
-			"nouserpriv" in restrict):
-			nosandbox = ("sandbox" not in features and \
-				"usersandbox" not in features)
-
-		if not process.sandbox_capable:
-			nosandbox = True
-
-		sesandbox = mysettings.selinux_enabled() and \
-			"sesandbox" in mysettings.features
-
-		droppriv = "userpriv" in mysettings.features and \
-			"userpriv" not in restrict and \
-			secpass >= 2
-
-		fakeroot = "fakeroot" in mysettings.features
-
-		ebuild_sh = _shell_quote(ebuild_sh_binary) + " %s"
-		misc_sh = _shell_quote(misc_sh_binary) + " dyn_%s"
-
-		# args are for the to spawn function
-		actionmap = {
-"pretend":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
-"setup":    {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
-"unpack":   {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
-"prepare":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
-"configure":{"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
-"compile":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
-"test":     {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
-"install":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":0,         "sesandbox":sesandbox, "fakeroot":fakeroot}},
-"rpm":      {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},
-"package":  {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},
-		}
-
-		# merge the deps in so we have again a 'full' actionmap
-		# be glad when this can die.
-		for x in actionmap:
-			if len(actionmap_deps.get(x, [])):
-				actionmap[x]["dep"] = ' '.join(actionmap_deps[x])
-
-		if mydo in actionmap:
-			if mydo == "package":
-				# Make sure the package directory exists before executing
-				# this phase. This can raise PermissionDenied if
-				# the current user doesn't have write access to $PKGDIR.
-				parent_dir = os.path.join(mysettings["PKGDIR"],
-					mysettings["CATEGORY"])
-				portage.util.ensure_dirs(parent_dir)
-				if not os.access(parent_dir, os.W_OK):
-					raise portage.exception.PermissionDenied(
-						"access('%s', os.W_OK)" % parent_dir)
-			retval = spawnebuild(mydo,
-				actionmap, mysettings, debug, logfile=logfile,
-				fd_pipes=fd_pipes, returnpid=returnpid)
-		elif mydo=="qmerge":
-			# check to ensure install was run.  this *only* pops up when users
-			# forget it and are using ebuild
-			if not os.path.exists(
-				os.path.join(mysettings["PORTAGE_BUILDDIR"], ".installed")):
-				writemsg(_("!!! mydo=qmerge, but the install phase has not been run\n"),
-					noiselevel=-1)
-				return 1
-			# qmerge is a special phase that implies noclean.
-			if "noclean" not in mysettings.features:
-				mysettings.features.add("noclean")
-			#qmerge is specifically not supposed to do a runtime dep check
-			retval = merge(
-				mysettings["CATEGORY"], mysettings["PF"], mysettings["D"],
-				os.path.join(mysettings["PORTAGE_BUILDDIR"], "build-info"),
-				myroot, mysettings, myebuild=mysettings["EBUILD"], mytree=tree,
-				mydbapi=mydbapi, vartree=vartree, prev_mtimes=prev_mtimes)
-		elif mydo=="merge":
-			retval = spawnebuild("install", actionmap, mysettings, debug,
-				alwaysdep=1, logfile=logfile, fd_pipes=fd_pipes,
-				returnpid=returnpid)
-			retval = exit_status_check(retval)
-			if retval != os.EX_OK:
-				# The merge phase handles this already.  Callers don't know how
-				# far this function got, so we have to call elog_process() here
-				# so that it's only called once.
-				from portage.elog import elog_process
-				elog_process(mysettings.mycpv, mysettings)
-			if retval == os.EX_OK:
-				retval = merge(mysettings["CATEGORY"], mysettings["PF"],
-					mysettings["D"], os.path.join(mysettings["PORTAGE_BUILDDIR"],
-					"build-info"), myroot, mysettings,
-					myebuild=mysettings["EBUILD"], mytree=tree, mydbapi=mydbapi,
-					vartree=vartree, prev_mtimes=prev_mtimes)
-		else:
-			print(_("!!! Unknown mydo: %s") % mydo)
-			return 1
-
-		return retval
-
-	finally:
-
-		if tmpdir:
-			mysettings["PORTAGE_TMPDIR"] = tmpdir_orig
-			shutil.rmtree(tmpdir)
-		if builddir_lock:
-			portage.locks.unlockdir(builddir_lock)
-
-		# Make sure that DISTDIR is restored to it's normal value before we return!
-		if "PORTAGE_ACTUAL_DISTDIR" in mysettings:
-			mysettings["DISTDIR"] = mysettings["PORTAGE_ACTUAL_DISTDIR"]
-			del mysettings["PORTAGE_ACTUAL_DISTDIR"]
-
-		if logfile:
-			try:
-				if os.stat(logfile).st_size == 0:
-					os.unlink(logfile)
-			except OSError:
-				pass
-
-		if mydo in ("digest", "manifest", "help"):
-			# If necessary, depend phase has been triggered by aux_get calls
-			# and the exemption is no longer needed.
-			_doebuild_manifest_exempt_depend -= 1
-
-def _validate_deps(mysettings, myroot, mydo, mydbapi):
-
-	invalid_dep_exempt_phases = \
-		set(["clean", "cleanrm", "help", "prerm", "postrm"])
-	dep_keys = ["DEPEND", "RDEPEND", "PDEPEND"]
-	misc_keys = ["LICENSE", "PROPERTIES", "PROVIDE", "RESTRICT", "SRC_URI"]
-	other_keys = ["SLOT"]
-	all_keys = dep_keys + misc_keys + other_keys
-	metadata = dict(zip(all_keys,
-		mydbapi.aux_get(mysettings.mycpv, all_keys)))
-
-	class FakeTree(object):
-		def __init__(self, mydb):
-			self.dbapi = mydb
-	dep_check_trees = {myroot:{}}
-	dep_check_trees[myroot]["porttree"] = \
-		FakeTree(fakedbapi(settings=mysettings))
-
-	msgs = []
-	for dep_type in dep_keys:
-		mycheck = dep_check(metadata[dep_type], None, mysettings,
-			myuse="all", myroot=myroot, trees=dep_check_trees)
-		if not mycheck[0]:
-			msgs.append("  %s: %s\n    %s\n" % (
-				dep_type, metadata[dep_type], mycheck[1]))
-
-	for k in misc_keys:
-		try:
-			portage.dep.use_reduce(
-				portage.dep.paren_reduce(metadata[k]), matchall=True)
-		except portage.exception.InvalidDependString as e:
-			msgs.append("  %s: %s\n    %s\n" % (
-				k, metadata[k], str(e)))
-
-	if not metadata["SLOT"]:
-		msgs.append(_("  SLOT is undefined\n"))
-
-	if msgs:
-		portage.util.writemsg_level(_("Error(s) in metadata for '%s':\n") % \
-			(mysettings.mycpv,), level=logging.ERROR, noiselevel=-1)
-		for x in msgs:
-			portage.util.writemsg_level(x,
-				level=logging.ERROR, noiselevel=-1)
-		if mydo not in invalid_dep_exempt_phases:
-			return 1
-
-	return os.EX_OK
-
 def _movefile(src, dest, **kwargs):
 	"""Calls movefile and raises a PortageException if an error occurs."""
 	if movefile(src, dest, **kwargs) is None:

Modified: main/trunk/pym/portage/dbapi/bintree.py
===================================================================
--- main/trunk/pym/portage/dbapi/bintree.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/portage/dbapi/bintree.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -10,6 +10,7 @@
 portage.proxy.lazyimport.lazyimport(globals(),
 	'portage.dep:dep_getkey,isjustname,match_from_list',
 	'portage.output:EOutput,colorize',
+	'portage.package.ebuild.doebuild:_vdb_use_conditional_atoms',
 	'portage.update:update_dbentries',
 	'portage.util:ensure_dirs,normalize_path,writemsg,writemsg_stdout',
 	'portage.versions:best,catpkgsplit,catsplit',
@@ -1065,7 +1066,7 @@
 				writemsg("%s: %s\n" % (k, str(e)),
 					noiselevel=-1)
 				raise
-			if k in portage._vdb_use_conditional_atoms:
+			if k in _vdb_use_conditional_atoms:
 				v_split = []
 				for x in deps.split():
 					try:

Modified: main/trunk/pym/portage/dbapi/vartree.py
===================================================================
--- main/trunk/pym/portage/dbapi/vartree.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/portage/dbapi/vartree.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -16,6 +16,9 @@
 	'portage.elog:elog_process',
 	'portage.locks:lockdir,unlockdir',
 	'portage.output:bold,colorize',
+	'portage.package.ebuild.doebuild:doebuild,doebuild_environment,' + \
+	 	'_spawn_misc_sh',
+	'portage.package.ebuild.prepare_build_dirs:prepare_build_dirs',
 	'portage.update:fixdbentries',
 	'portage.util:apply_secpass_permissions,ConfigProtect,ensure_dirs,' + \
 		'writemsg,writemsg_level,write_atomic,atomic_ofstream,writedict,' + \
@@ -33,7 +36,7 @@
 from portage.localization import _
 
 from portage import listdir, dep_expand, digraph, flatten, \
-	doebuild_environment, doebuild, env_update, prepare_build_dirs, \
+	env_update, \
 	abssymlink, movefile, _movefile, bsd_chflags, cpv_getkey
 
 # This is a special version of the os module, wrapped for unicode support.

Added: main/trunk/pym/portage/package/ebuild/_pty.py
===================================================================
--- main/trunk/pym/portage/package/ebuild/_pty.py	                        (rev 0)
+++ main/trunk/pym/portage/package/ebuild/_pty.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -0,0 +1,192 @@
+# Copyright 2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+import array
+import fcntl
+import platform
+import pty
+import select
+import sys
+import termios
+
+from portage import os, _unicode_decode, _unicode_encode
+from portage.process import spawn_bash
+from portage.util import writemsg
+
+def _can_test_pty_eof():
+	"""
+	The _test_pty_eof() function seems to hang on most
+	kernels other than Linux.
+	This was reported for the following kernels which used to work fine
+	without this EOF test: Darwin, AIX, FreeBSD.  They seem to hang on
+	the slave_file.close() call.  Note that Python's implementation of
+	openpty on Solaris already caused random hangs without this EOF test
+	and hence is globally disabled.
+	@rtype: bool
+	@returns: True if _test_pty_eof() won't hang, False otherwise.
+	"""
+	return platform.system() in ("Linux",)
+
+def _test_pty_eof():
+	"""
+	Returns True if this issues is fixed for the currently
+	running version of python: http://bugs.python.org/issue5380
+	Raises an EnvironmentError from openpty() if it fails.
+	"""
+
+	use_fork = False
+
+	test_string = 2 * "blah blah blah\n"
+	test_string = _unicode_decode(test_string,
+		encoding='utf_8', errors='strict')
+
+	# may raise EnvironmentError
+	master_fd, slave_fd = pty.openpty()
+
+	# Non-blocking mode is required for Darwin kernel.
+	fcntl.fcntl(master_fd, fcntl.F_SETFL,
+		fcntl.fcntl(master_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
+
+	# Disable post-processing of output since otherwise weird
+	# things like \n -> \r\n transformations may occur.
+	mode = termios.tcgetattr(slave_fd)
+	mode[1] &= ~termios.OPOST
+	termios.tcsetattr(slave_fd, termios.TCSANOW, mode)
+
+	# Simulate a subprocess writing some data to the
+	# slave end of the pipe, and then exiting.
+	pid = None
+	if use_fork:
+		pids = spawn_bash(_unicode_encode("echo -n '%s'" % test_string,
+			encoding='utf_8', errors='strict'), env=os.environ,
+			fd_pipes={0:sys.stdin.fileno(), 1:slave_fd, 2:slave_fd},
+			returnpid=True)
+		if isinstance(pids, int):
+			os.close(master_fd)
+			os.close(slave_fd)
+			raise EnvironmentError('spawn failed')
+		pid = pids[0]
+	else:
+		os.write(slave_fd, _unicode_encode(test_string,
+			encoding='utf_8', errors='strict'))
+	os.close(slave_fd)
+
+	# If using a fork, we must wait for the child here,
+	# in order to avoid a race condition that would
+	# lead to inconsistent results.
+	if pid is not None:
+		os.waitpid(pid, 0)
+
+	master_file = os.fdopen(master_fd, 'rb')
+	eof = False
+	data = []
+	iwtd = [master_file]
+	owtd = []
+	ewtd = []
+
+	while not eof:
+
+		events = select.select(iwtd, owtd, ewtd)
+		if not events[0]:
+			eof = True
+			break
+
+		buf = array.array('B')
+		try:
+			buf.fromfile(master_file, 1024)
+		except EOFError:
+			eof = True
+		except IOError:
+			# This is where data loss occurs.
+			eof = True
+
+		if not buf:
+			eof = True
+		else:
+			data.append(_unicode_decode(buf.tostring(),
+				encoding='utf_8', errors='strict'))
+
+	master_file.close()
+
+	return test_string == ''.join(data)
+
+# If _test_pty_eof() can't be used for runtime detection of
+# http://bugs.python.org/issue5380, openpty can't safely be used
+# unless we can guarantee that the current version of python has
+# been fixed (affects all current versions of python3). When
+# this issue is fixed in python3, we can add another sys.hexversion
+# conditional to enable openpty support in the fixed versions.
+if sys.hexversion >= 0x3000000 and not _can_test_pty_eof():
+	_disable_openpty = True
+else:
+	# Disable the use of openpty on Solaris as it seems Python's openpty
+	# implementation doesn't play nice on Solaris with Portage's
+	# behaviour causing hangs/deadlocks.
+	# Additional note for the future: on Interix, pipes do NOT work, so
+	# _disable_openpty on Interix must *never* be True
+	_disable_openpty = platform.system() in ("SunOS",)
+_tested_pty = False
+
+if not _can_test_pty_eof():
+	# Skip _test_pty_eof() on systems where it hangs.
+	_tested_pty = True
+
+def _create_pty_or_pipe(copy_term_size=None):
+	"""
+	Try to create a pty and if then fails then create a normal
+	pipe instead.
+
+	@param copy_term_size: If a tty file descriptor is given
+		then the term size will be copied to the pty.
+	@type copy_term_size: int
+	@rtype: tuple
+	@returns: A tuple of (is_pty, master_fd, slave_fd) where
+		is_pty is True if a pty was successfully allocated, and
+		False if a normal pipe was allocated.
+	"""
+
+	got_pty = False
+
+	global _disable_openpty, _tested_pty
+	if not (_tested_pty or _disable_openpty):
+		try:
+			if not _test_pty_eof():
+				_disable_openpty = True
+		except EnvironmentError as e:
+			_disable_openpty = True
+			writemsg("openpty failed: '%s'\n" % str(e),
+				noiselevel=-1)
+			del e
+		_tested_pty = True
+
+	if _disable_openpty:
+		master_fd, slave_fd = os.pipe()
+	else:
+		from pty import openpty
+		try:
+			master_fd, slave_fd = openpty()
+			got_pty = True
+		except EnvironmentError as e:
+			_disable_openpty = True
+			writemsg("openpty failed: '%s'\n" % str(e),
+				noiselevel=-1)
+			del e
+			master_fd, slave_fd = os.pipe()
+
+	if got_pty:
+		# Disable post-processing of output since otherwise weird
+		# things like \n -> \r\n transformations may occur.
+		import termios
+		mode = termios.tcgetattr(slave_fd)
+		mode[1] &= ~termios.OPOST
+		termios.tcsetattr(slave_fd, termios.TCSANOW, mode)
+
+	if got_pty and \
+		copy_term_size is not None and \
+		os.isatty(copy_term_size):
+		from portage.output import get_term_size, set_term_size
+		rows, columns = get_term_size()
+		set_term_size(rows, columns, slave_fd)
+
+	return (got_pty, master_fd, slave_fd)


Property changes on: main/trunk/pym/portage/package/ebuild/_pty.py
___________________________________________________________________
Added: svn:keywords
   + Id

Added: main/trunk/pym/portage/package/ebuild/doebuild.py
===================================================================
--- main/trunk/pym/portage/package/ebuild/doebuild.py	                        (rev 0)
+++ main/trunk/pym/portage/package/ebuild/doebuild.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -0,0 +1,1759 @@
+# Copyright 2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+from __future__ import print_function
+
+__all__ = ['doebuild', 'doebuild_environment', 'spawn', 'spawnebuild']
+
+import codecs
+import errno
+from itertools import chain
+import logging
+import os as _os
+import re
+import shutil
+import stat
+import sys
+from textwrap import wrap
+import time
+
+import portage
+portage.proxy.lazyimport.lazyimport(globals(),
+	'portage.package.ebuild.config:check_config_instance',
+)
+
+from portage import auxdbkeys, bsd_chflags, dep_check, digestcheck, digestgen, eapi_is_supported, ExtractKernelVersion, merge, os, selinux, StringIO, unmerge, _encodings, _parse_eapi_ebuild_head, _os_merge, _shell_quote, _split_ebuild_name_glep55, _unicode_decode, _unicode_encode
+from portage.const import EBUILD_SH_ENV_FILE, EBUILD_SH_BINARY, INVALID_ENV_FILE, MISC_SH_BINARY
+from portage.data import portage_gid, portage_uid, secpass, uid, userpriv_groups
+from portage.dbapi.virtual import fakedbapi
+from portage.dep import Atom, paren_enclose, paren_normalize, paren_reduce, use_reduce
+from portage.elog import elog_process
+from portage.elog.messages import eerror, eqawarn
+from portage.exception import DigestException, FileNotFound, IncorrectParameter, InvalidAtom, InvalidDependString, PermissionDenied, UnsupportedAPIException
+from portage.localization import _
+from portage.manifest import Manifest
+from portage.output import style_to_ansi_code
+from portage.package.ebuild.fetch import fetch
+from portage.package.ebuild.prepare_build_dirs import prepare_build_dirs
+from portage.package.ebuild._pty import _create_pty_or_pipe
+from portage.util import apply_recursive_permissions, apply_secpass_permissions, noiselimit, normalize_path, writemsg, writemsg_stdout, write_atomic
+from portage.versions import _pkgsplit
+
+def doebuild_environment(myebuild, mydo, myroot, mysettings,
+	debug, use_cache, mydbapi):
+
+	ebuild_path = os.path.abspath(myebuild)
+	pkg_dir     = os.path.dirname(ebuild_path)
+
+	if "CATEGORY" in mysettings.configdict["pkg"]:
+		cat = mysettings.configdict["pkg"]["CATEGORY"]
+	else:
+		cat = os.path.basename(normalize_path(os.path.join(pkg_dir, "..")))
+
+	eapi = None
+	if 'parse-eapi-glep-55' in mysettings.features:
+		mypv, eapi = _split_ebuild_name_glep55(
+			os.path.basename(myebuild))
+	else:
+		mypv = os.path.basename(ebuild_path)[:-7]
+
+	mycpv = cat+"/"+mypv
+	mysplit = _pkgsplit(mypv)
+	if mysplit is None:
+		raise IncorrectParameter(
+			_("Invalid ebuild path: '%s'") % myebuild)
+
+	# Make a backup of PORTAGE_TMPDIR prior to calling config.reset()
+	# so that the caller can override it.
+	tmpdir = mysettings["PORTAGE_TMPDIR"]
+
+	if mydo == 'depend':
+		if mycpv != mysettings.mycpv:
+			# Don't pass in mydbapi here since the resulting aux_get
+			# call would lead to infinite 'depend' phase recursion.
+			mysettings.setcpv(mycpv)
+	else:
+		# If IUSE isn't in configdict['pkg'], it means that setcpv()
+		# hasn't been called with the mydb argument, so we have to
+		# call it here (portage code always calls setcpv properly,
+		# but api consumers might not).
+		if mycpv != mysettings.mycpv or \
+			'IUSE' not in mysettings.configdict['pkg']:
+			# Reload env.d variables and reset any previous settings.
+			mysettings.reload()
+			mysettings.reset()
+			mysettings.setcpv(mycpv, mydb=mydbapi)
+
+	# config.reset() might have reverted a change made by the caller,
+	# so restore it to it's original value.
+	mysettings["PORTAGE_TMPDIR"] = tmpdir
+
+	mysettings.pop("EBUILD_PHASE", None) # remove from backupenv
+	mysettings["EBUILD_PHASE"] = mydo
+
+	mysettings["PORTAGE_MASTER_PID"] = str(os.getpid())
+
+	# We are disabling user-specific bashrc files.
+	mysettings["BASH_ENV"] = INVALID_ENV_FILE
+
+	if debug: # Otherwise it overrides emerge's settings.
+		# We have no other way to set debug... debug can't be passed in
+		# due to how it's coded... Don't overwrite this so we can use it.
+		mysettings["PORTAGE_DEBUG"] = "1"
+
+	mysettings["EBUILD"]   = ebuild_path
+	mysettings["O"]        = pkg_dir
+	mysettings.configdict["pkg"]["CATEGORY"] = cat
+	mysettings["FILESDIR"] = pkg_dir+"/files"
+	mysettings["PF"]       = mypv
+
+	if hasattr(mydbapi, '_repo_info'):
+		mytree = os.path.dirname(os.path.dirname(pkg_dir))
+		repo_info = mydbapi._repo_info[mytree]
+		mysettings['PORTDIR'] = repo_info.portdir
+		mysettings['PORTDIR_OVERLAY'] = repo_info.portdir_overlay
+
+	mysettings["PORTDIR"] = os.path.realpath(mysettings["PORTDIR"])
+	mysettings["DISTDIR"] = os.path.realpath(mysettings["DISTDIR"])
+	mysettings["RPMDIR"]  = os.path.realpath(mysettings["RPMDIR"])
+
+	mysettings["ECLASSDIR"]   = mysettings["PORTDIR"]+"/eclass"
+	mysettings["SANDBOX_LOG"] = mycpv.replace("/", "_-_")
+
+	mysettings["PROFILE_PATHS"] = "\n".join(mysettings.profiles)
+	mysettings["P"]  = mysplit[0]+"-"+mysplit[1]
+	mysettings["PN"] = mysplit[0]
+	mysettings["PV"] = mysplit[1]
+	mysettings["PR"] = mysplit[2]
+
+	if noiselimit < 0:
+		mysettings["PORTAGE_QUIET"] = "1"
+
+	if mydo == 'depend' and \
+		'EAPI' not in mysettings.configdict['pkg']:
+
+		if eapi is not None:
+			# From parse-eapi-glep-55 above.
+			pass
+		elif 'parse-eapi-ebuild-head' in mysettings.features:
+			eapi = _parse_eapi_ebuild_head(
+				codecs.open(_unicode_encode(ebuild_path,
+				encoding=_encodings['fs'], errors='strict'),
+				mode='r', encoding=_encodings['content'], errors='replace'))
+
+		if eapi is not None:
+			if not eapi_is_supported(eapi):
+				raise UnsupportedAPIException(mycpv, eapi)
+			mysettings.configdict['pkg']['EAPI'] = eapi
+
+	if mydo != "depend":
+		# Metadata vars such as EAPI and RESTRICT are
+		# set by the above config.setcpv() call.
+		eapi = mysettings["EAPI"]
+		if not eapi_is_supported(eapi):
+			# can't do anything with this.
+			raise UnsupportedAPIException(mycpv, eapi)
+
+	if mysplit[2] == "r0":
+		mysettings["PVR"]=mysplit[1]
+	else:
+		mysettings["PVR"]=mysplit[1]+"-"+mysplit[2]
+
+	if "PATH" in mysettings:
+		mysplit=mysettings["PATH"].split(":")
+	else:
+		mysplit=[]
+	# Note: PORTAGE_BIN_PATH may differ from the global constant
+	# when portage is reinstalling itself.
+	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
+	if portage_bin_path not in mysplit:
+		mysettings["PATH"] = portage_bin_path + ":" + mysettings["PATH"]
+
+	# Sandbox needs cannonical paths.
+	mysettings["PORTAGE_TMPDIR"] = os.path.realpath(
+		mysettings["PORTAGE_TMPDIR"])
+	mysettings["BUILD_PREFIX"] = mysettings["PORTAGE_TMPDIR"]+"/portage"
+	mysettings["PKG_TMPDIR"]   = mysettings["PORTAGE_TMPDIR"]+"/binpkgs"
+	
+	# Package {pre,post}inst and {pre,post}rm may overlap, so they must have separate
+	# locations in order to prevent interference.
+	if mydo in ("unmerge", "prerm", "postrm", "cleanrm"):
+		mysettings["PORTAGE_BUILDDIR"] = os.path.join(
+			mysettings["PKG_TMPDIR"],
+			mysettings["CATEGORY"], mysettings["PF"])
+	else:
+		mysettings["PORTAGE_BUILDDIR"] = os.path.join(
+			mysettings["BUILD_PREFIX"],
+			mysettings["CATEGORY"], mysettings["PF"])
+
+	mysettings["HOME"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "homedir")
+	mysettings["WORKDIR"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "work")
+	mysettings["D"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "image") + os.sep
+	mysettings["T"] = os.path.join(mysettings["PORTAGE_BUILDDIR"], "temp")
+
+	# Prefix forward compatability
+	mysettings["ED"] = mysettings["D"]
+
+	mysettings["PORTAGE_BASHRC"] = os.path.join(
+		mysettings["PORTAGE_CONFIGROOT"], EBUILD_SH_ENV_FILE)
+	mysettings["EBUILD_EXIT_STATUS_FILE"] = os.path.join(
+		mysettings["PORTAGE_BUILDDIR"], ".exit_status")
+
+	#set up KV variable -- DEP SPEEDUP :: Don't waste time. Keep var persistent.
+	if eapi not in ('0', '1', '2', '3', '3_pre2'):
+		# Discard KV for EAPIs that don't support it. Cache KV is restored
+		# from the backupenv whenever config.reset() is called.
+		mysettings.pop('KV', None)
+	elif mydo != 'depend' and 'KV' not in mysettings and \
+		mydo in ('compile', 'config', 'configure', 'info',
+		'install', 'nofetch', 'postinst', 'postrm', 'preinst',
+		'prepare', 'prerm', 'setup', 'test', 'unpack'):
+		mykv,err1=ExtractKernelVersion(os.path.join(myroot, "usr/src/linux"))
+		if mykv:
+			# Regular source tree
+			mysettings["KV"]=mykv
+		else:
+			mysettings["KV"]=""
+		mysettings.backup_changes("KV")
+
+	# Allow color.map to control colors associated with einfo, ewarn, etc...
+	mycolors = []
+	for c in ("GOOD", "WARN", "BAD", "HILITE", "BRACKET"):
+		mycolors.append("%s=$'%s'" % \
+			(c, style_to_ansi_code(c)))
+	mysettings["PORTAGE_COLORMAP"] = "\n".join(mycolors)
+
+def _doebuild_exit_status_check(mydo, settings):
+	"""
+	Returns an error string if the shell appeared
+	to exit unsuccessfully, None otherwise.
+	"""
+	exit_status_file = settings.get("EBUILD_EXIT_STATUS_FILE")
+	if not exit_status_file or \
+		os.path.exists(exit_status_file):
+		return None
+	msg = _("The ebuild phase '%s' has exited "
+	"unexpectedly. This type of behavior "
+	"is known to be triggered "
+	"by things such as failed variable "
+	"assignments (bug #190128) or bad substitution "
+	"errors (bug #200313). Normally, before exiting, bash should "
+	"have displayed an error message above. If bash did not "
+	"produce an error message above, it's possible "
+	"that the ebuild has called `exit` when it "
+	"should have called `die` instead. This behavior may also "
+	"be triggered by a corrupt bash binary or a hardware "
+	"problem such as memory or cpu malfunction. If the problem is not "
+	"reproducible or it appears to occur randomly, then it is likely "
+	"to be triggered by a hardware problem. "
+	"If you suspect a hardware problem then you should "
+	"try some basic hardware diagnostics such as memtest. "
+	"Please do not report this as a bug unless it is consistently "
+	"reproducible and you are sure that your bash binary and hardware "
+	"are functioning properly.") % mydo
+	return msg
+
+def _doebuild_exit_status_check_and_log(settings, mydo, retval):
+	msg = _doebuild_exit_status_check(mydo, settings)
+	if msg:
+		if retval == os.EX_OK:
+			retval = 1
+		for l in wrap(msg, 72):
+			eerror(l, phase=mydo, key=settings.mycpv)
+	return retval
+
+def _doebuild_exit_status_unlink(exit_status_file):
+	"""
+	Double check to make sure it really doesn't exist
+	and raise an OSError if it still does (it shouldn't).
+	OSError if necessary.
+	"""
+	if not exit_status_file:
+		return
+	try:
+		os.unlink(exit_status_file)
+	except OSError:
+		pass
+	if os.path.exists(exit_status_file):
+		os.unlink(exit_status_file)
+
+_doebuild_manifest_exempt_depend = 0
+_doebuild_manifest_cache = None
+_doebuild_broken_ebuilds = set()
+_doebuild_broken_manifests = set()
+
+def doebuild(myebuild, mydo, myroot, mysettings, debug=0, listonly=0,
+	fetchonly=0, cleanup=0, dbkey=None, use_cache=1, fetchall=0, tree=None,
+	mydbapi=None, vartree=None, prev_mtimes=None,
+	fd_pipes=None, returnpid=False):
+
+	"""
+	Wrapper function that invokes specific ebuild phases through the spawning
+	of ebuild.sh
+	
+	@param myebuild: name of the ebuild to invoke the phase on (CPV)
+	@type myebuild: String
+	@param mydo: Phase to run
+	@type mydo: String
+	@param myroot: $ROOT (usually '/', see man make.conf)
+	@type myroot: String
+	@param mysettings: Portage Configuration
+	@type mysettings: instance of portage.config
+	@param debug: Turns on various debug information (eg, debug for spawn)
+	@type debug: Boolean
+	@param listonly: Used to wrap fetch(); passed such that fetch only lists files required.
+	@type listonly: Boolean
+	@param fetchonly: Used to wrap fetch(); passed such that files are only fetched (no other actions)
+	@type fetchonly: Boolean
+	@param cleanup: Passed to prepare_build_dirs (TODO: what does it do?)
+	@type cleanup: Boolean
+	@param dbkey: A dict (usually keys and values from the depend phase, such as KEYWORDS, USE, etc..)
+	@type dbkey: Dict or String
+	@param use_cache: Enables the cache
+	@type use_cache: Boolean
+	@param fetchall: Used to wrap fetch(), fetches all URIs (even ones invalid due to USE conditionals)
+	@type fetchall: Boolean
+	@param tree: Which tree to use ('vartree','porttree','bintree', etc..), defaults to 'porttree'
+	@type tree: String
+	@param mydbapi: a dbapi instance to pass to various functions; this should be a portdbapi instance.
+	@type mydbapi: portdbapi instance
+	@param vartree: A instance of vartree; used for aux_get calls, defaults to db[myroot]['vartree']
+	@type vartree: vartree instance
+	@param prev_mtimes: A dict of { filename:mtime } keys used by merge() to do config_protection
+	@type prev_mtimes: dictionary
+	@param fd_pipes: A dict of mapping for pipes, { '0': stdin, '1': stdout }
+		for example.
+	@type fd_pipes: Dictionary
+	@param returnpid: Return a list of process IDs for a successful spawn, or
+		an integer value if spawn is unsuccessful. NOTE: This requires the
+		caller clean up all returned PIDs.
+	@type returnpid: Boolean
+	@rtype: Boolean
+	@returns:
+	1. 0 for success
+	2. 1 for error
+	
+	Most errors have an accompanying error message.
+	
+	listonly and fetchonly are only really necessary for operations involving 'fetch'
+	prev_mtimes are only necessary for merge operations.
+	Other variables may not be strictly required, many have defaults that are set inside of doebuild.
+	
+	"""
+	
+	if not tree:
+		writemsg("Warning: tree not specified to doebuild\n")
+		tree = "porttree"
+	
+	# chunked out deps for each phase, so that ebuild binary can use it 
+	# to collapse targets down.
+	actionmap_deps={
+	"setup":  [],
+	"unpack": ["setup"],
+	"prepare": ["unpack"],
+	"configure": ["prepare"],
+	"compile":["configure"],
+	"test":   ["compile"],
+	"install":["test"],
+	"rpm":    ["install"],
+	"package":["install"],
+	}
+	
+	if mydbapi is None:
+		mydbapi = portage.db[myroot][tree].dbapi
+
+	if vartree is None and mydo in ("merge", "qmerge", "unmerge"):
+		vartree = portage.db[myroot]["vartree"]
+
+	features = mysettings.features
+
+	clean_phases = ("clean", "cleanrm")
+	validcommands = ["help","clean","prerm","postrm","cleanrm","preinst","postinst",
+	                "config", "info", "setup", "depend", "pretend",
+	                "fetch", "fetchall", "digest",
+	                "unpack", "prepare", "configure", "compile", "test",
+	                "install", "rpm", "qmerge", "merge",
+	                "package","unmerge", "manifest"]
+
+	if mydo not in validcommands:
+		validcommands.sort()
+		writemsg("!!! doebuild: '%s' is not one of the following valid commands:" % mydo,
+			noiselevel=-1)
+		for vcount in range(len(validcommands)):
+			if vcount%6 == 0:
+				writemsg("\n!!! ", noiselevel=-1)
+			writemsg(validcommands[vcount].ljust(11), noiselevel=-1)
+		writemsg("\n", noiselevel=-1)
+		return 1
+
+	if mydo == "fetchall":
+		fetchall = 1
+		mydo = "fetch"
+
+	parallel_fetchonly = mydo in ("fetch", "fetchall") and \
+		"PORTAGE_PARALLEL_FETCHONLY" in mysettings
+
+	if mydo not in clean_phases and not os.path.exists(myebuild):
+		writemsg("!!! doebuild: %s not found for %s\n" % (myebuild, mydo),
+			noiselevel=-1)
+		return 1
+
+	global _doebuild_manifest_exempt_depend
+
+	if "strict" in features and \
+		"digest" not in features and \
+		tree == "porttree" and \
+		mydo not in ("digest", "manifest", "help") and \
+		not _doebuild_manifest_exempt_depend:
+		# Always verify the ebuild checksums before executing it.
+		global _doebuild_manifest_cache, _doebuild_broken_ebuilds, \
+			_doebuild_broken_ebuilds
+
+		if myebuild in _doebuild_broken_ebuilds:
+			return 1
+
+		pkgdir = os.path.dirname(myebuild)
+		manifest_path = os.path.join(pkgdir, "Manifest")
+
+		# Avoid checking the same Manifest several times in a row during a
+		# regen with an empty cache.
+		if _doebuild_manifest_cache is None or \
+			_doebuild_manifest_cache.getFullname() != manifest_path:
+			_doebuild_manifest_cache = None
+			if not os.path.exists(manifest_path):
+				out = portage.output.EOutput()
+				out.eerror(_("Manifest not found for '%s'") % (myebuild,))
+				_doebuild_broken_ebuilds.add(myebuild)
+				return 1
+			mf = Manifest(pkgdir, mysettings["DISTDIR"])
+
+		else:
+			mf = _doebuild_manifest_cache
+
+		try:
+			mf.checkFileHashes("EBUILD", os.path.basename(myebuild))
+		except KeyError:
+			out = portage.output.EOutput()
+			out.eerror(_("Missing digest for '%s'") % (myebuild,))
+			_doebuild_broken_ebuilds.add(myebuild)
+			return 1
+		except FileNotFound:
+			out = portage.output.EOutput()
+			out.eerror(_("A file listed in the Manifest "
+				"could not be found: '%s'") % (myebuild,))
+			_doebuild_broken_ebuilds.add(myebuild)
+			return 1
+		except DigestException as e:
+			out = portage.output.EOutput()
+			out.eerror(_("Digest verification failed:"))
+			out.eerror("%s" % e.value[0])
+			out.eerror(_("Reason: %s") % e.value[1])
+			out.eerror(_("Got: %s") % e.value[2])
+			out.eerror(_("Expected: %s") % e.value[3])
+			_doebuild_broken_ebuilds.add(myebuild)
+			return 1
+
+		if mf.getFullname() in _doebuild_broken_manifests:
+			return 1
+
+		if mf is not _doebuild_manifest_cache:
+
+			# Make sure that all of the ebuilds are
+			# actually listed in the Manifest.
+			glep55 = 'parse-eapi-glep-55' in mysettings.features
+			for f in os.listdir(pkgdir):
+				pf = None
+				if glep55:
+					pf, eapi = _split_ebuild_name_glep55(f)
+				elif f[-7:] == '.ebuild':
+					pf = f[:-7]
+				if pf is not None and not mf.hasFile("EBUILD", f):
+					f = os.path.join(pkgdir, f)
+					if f not in _doebuild_broken_ebuilds:
+						out = portage.output.EOutput()
+						out.eerror(_("A file is not listed in the "
+							"Manifest: '%s'") % (f,))
+					_doebuild_broken_manifests.add(manifest_path)
+					return 1
+
+			# Only cache it if the above stray files test succeeds.
+			_doebuild_manifest_cache = mf
+
+	def exit_status_check(retval):
+		msg = _doebuild_exit_status_check(mydo, mysettings)
+		if msg:
+			if retval == os.EX_OK:
+				retval = 1
+			for l in wrap(msg, 72):
+				eerror(l, phase=mydo, key=mysettings.mycpv)
+		return retval
+
+	# Note: PORTAGE_BIN_PATH may differ from the global
+	# constant when portage is reinstalling itself.
+	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
+	ebuild_sh_binary = os.path.join(portage_bin_path,
+		os.path.basename(EBUILD_SH_BINARY))
+	misc_sh_binary = os.path.join(portage_bin_path,
+		os.path.basename(MISC_SH_BINARY))
+
+	logfile=None
+	builddir_lock = None
+	tmpdir = None
+	tmpdir_orig = None
+
+	try:
+		if mydo in ("digest", "manifest", "help"):
+			# Temporarily exempt the depend phase from manifest checks, in case
+			# aux_get calls trigger cache generation.
+			_doebuild_manifest_exempt_depend += 1
+
+		# If we don't need much space and we don't need a constant location,
+		# we can temporarily override PORTAGE_TMPDIR with a random temp dir
+		# so that there's no need for locking and it can be used even if the
+		# user isn't in the portage group.
+		if mydo in ("info",):
+			from tempfile import mkdtemp
+			tmpdir = mkdtemp()
+			tmpdir_orig = mysettings["PORTAGE_TMPDIR"]
+			mysettings["PORTAGE_TMPDIR"] = tmpdir
+
+		doebuild_environment(myebuild, mydo, myroot, mysettings, debug,
+			use_cache, mydbapi)
+
+		if mydo in clean_phases:
+			retval = spawn(_shell_quote(ebuild_sh_binary) + " clean",
+				mysettings, debug=debug, fd_pipes=fd_pipes, free=1,
+				logfile=None, returnpid=returnpid)
+			return retval
+
+		restrict = set(mysettings.get('PORTAGE_RESTRICT', '').split())
+		# get possible slot information from the deps file
+		if mydo == "depend":
+			writemsg("!!! DEBUG: dbkey: %s\n" % str(dbkey), 2)
+			droppriv = "userpriv" in mysettings.features
+			if returnpid:
+				mypids = spawn(_shell_quote(ebuild_sh_binary) + " depend",
+					mysettings, fd_pipes=fd_pipes, returnpid=True,
+					droppriv=droppriv)
+				return mypids
+			elif isinstance(dbkey, dict):
+				mysettings["dbkey"] = ""
+				pr, pw = os.pipe()
+				fd_pipes = {
+					0:sys.stdin.fileno(),
+					1:sys.stdout.fileno(),
+					2:sys.stderr.fileno(),
+					9:pw}
+				mypids = spawn(_shell_quote(ebuild_sh_binary) + " depend",
+					mysettings,
+					fd_pipes=fd_pipes, returnpid=True, droppriv=droppriv)
+				os.close(pw) # belongs exclusively to the child process now
+				f = os.fdopen(pr, 'rb')
+				for k, v in zip(auxdbkeys,
+					(_unicode_decode(line).rstrip('\n') for line in f)):
+					dbkey[k] = v
+				f.close()
+				retval = os.waitpid(mypids[0], 0)[1]
+				portage.process.spawned_pids.remove(mypids[0])
+				# If it got a signal, return the signal that was sent, but
+				# shift in order to distinguish it from a return value. (just
+				# like portage.process.spawn() would do).
+				if retval & 0xff:
+					retval = (retval & 0xff) << 8
+				else:
+					# Otherwise, return its exit code.
+					retval = retval >> 8
+				if retval == os.EX_OK and len(dbkey) != len(auxdbkeys):
+					# Don't trust bash's returncode if the
+					# number of lines is incorrect.
+					retval = 1
+				return retval
+			elif dbkey:
+				mysettings["dbkey"] = dbkey
+			else:
+				mysettings["dbkey"] = \
+					os.path.join(mysettings.depcachedir, "aux_db_key_temp")
+
+			return spawn(_shell_quote(ebuild_sh_binary) + " depend",
+				mysettings,
+				droppriv=droppriv)
+
+		# Validate dependency metadata here to ensure that ebuilds with invalid
+		# data are never installed via the ebuild command. Don't bother when
+		# returnpid == True since there's no need to do this every time emerge
+		# executes a phase.
+		if not returnpid:
+			rval = _validate_deps(mysettings, myroot, mydo, mydbapi)
+			if rval != os.EX_OK:
+				return rval
+
+		if "PORTAGE_TMPDIR" not in mysettings or \
+			not os.path.isdir(mysettings["PORTAGE_TMPDIR"]):
+			writemsg(_("The directory specified in your "
+				"PORTAGE_TMPDIR variable, '%s',\n"
+				"does not exist.  Please create this directory or "
+				"correct your PORTAGE_TMPDIR setting.\n") % mysettings.get("PORTAGE_TMPDIR", ""), noiselevel=-1)
+			return 1
+		
+		# as some people use a separate PORTAGE_TMPDIR mount
+		# we prefer that as the checks below would otherwise be pointless
+		# for those people.
+		if os.path.exists(os.path.join(mysettings["PORTAGE_TMPDIR"], "portage")):
+			checkdir = os.path.join(mysettings["PORTAGE_TMPDIR"], "portage")
+		else:
+			checkdir = mysettings["PORTAGE_TMPDIR"]
+
+		if not os.access(checkdir, os.W_OK):
+			writemsg(_("%s is not writable.\n"
+				"Likely cause is that you've mounted it as readonly.\n") % checkdir,
+				noiselevel=-1)
+			return 1
+		else:
+			from tempfile import NamedTemporaryFile
+			fd = NamedTemporaryFile(prefix="exectest-", dir=checkdir)
+			os.chmod(fd.name, 0o755)
+			if not os.access(fd.name, os.X_OK):
+				writemsg(_("Can not execute files in %s\n"
+					"Likely cause is that you've mounted it with one of the\n"
+					"following mount options: 'noexec', 'user', 'users'\n\n"
+					"Please make sure that portage can execute files in this directory.\n") % checkdir,
+					noiselevel=-1)
+				fd.close()
+				return 1
+			fd.close()
+		del checkdir
+
+		if mydo == "unmerge":
+			return unmerge(mysettings["CATEGORY"],
+				mysettings["PF"], myroot, mysettings, vartree=vartree)
+
+		# Build directory creation isn't required for any of these.
+		# In the fetch phase, the directory is needed only for RESTRICT=fetch
+		# in order to satisfy the sane $PWD requirement (from bug #239560)
+		# when pkg_nofetch is spawned.
+		have_build_dirs = False
+		if not parallel_fetchonly and \
+			mydo not in ('digest', 'help', 'manifest') and \
+			not (mydo == 'fetch' and 'fetch' not in restrict):
+			mystatus = prepare_build_dirs(myroot, mysettings, cleanup)
+			if mystatus:
+				return mystatus
+			have_build_dirs = True
+
+			# emerge handles logging externally
+			if not returnpid:
+				# PORTAGE_LOG_FILE is set by the
+				# above prepare_build_dirs() call.
+				logfile = mysettings.get("PORTAGE_LOG_FILE")
+
+		if have_build_dirs:
+			env_file = os.path.join(mysettings["T"], "environment")
+			env_stat = None
+			saved_env = None
+			try:
+				env_stat = os.stat(env_file)
+			except OSError as e:
+				if e.errno != errno.ENOENT:
+					raise
+				del e
+			if not env_stat:
+				saved_env = os.path.join(
+					os.path.dirname(myebuild), "environment.bz2")
+				if not os.path.isfile(saved_env):
+					saved_env = None
+			if saved_env:
+				retval = os.system(
+					"bzip2 -dc %s > %s" % \
+					(_shell_quote(saved_env),
+					_shell_quote(env_file)))
+				try:
+					env_stat = os.stat(env_file)
+				except OSError as e:
+					if e.errno != errno.ENOENT:
+						raise
+					del e
+				if os.WIFEXITED(retval) and \
+					os.WEXITSTATUS(retval) == os.EX_OK and \
+					env_stat and env_stat.st_size > 0:
+					# This is a signal to ebuild.sh, so that it knows to filter
+					# out things like SANDBOX_{DENY,PREDICT,READ,WRITE} that
+					# would be preserved between normal phases.
+					open(_unicode_encode(env_file + '.raw'), 'w')
+				else:
+					writemsg(_("!!! Error extracting saved "
+						"environment: '%s'\n") % \
+						saved_env, noiselevel=-1)
+					try:
+						os.unlink(env_file)
+					except OSError as e:
+						if e.errno != errno.ENOENT:
+							raise
+						del e
+					env_stat = None
+			if env_stat:
+				pass
+			else:
+				for var in ("ARCH", ):
+					value = mysettings.get(var)
+					if value and value.strip():
+						continue
+					msg = _("%(var)s is not set... "
+						"Are you missing the '%(configroot)setc/make.profile' symlink? "
+						"Is the symlink correct? "
+						"Is your portage tree complete?") % \
+						{"var": var, "configroot": mysettings["PORTAGE_CONFIGROOT"]}
+					for line in wrap(msg, 70):
+						eerror(line, phase="setup", key=mysettings.mycpv)
+					elog_process(mysettings.mycpv, mysettings)
+					return 1
+			del env_file, env_stat, saved_env
+			_doebuild_exit_status_unlink(
+				mysettings.get("EBUILD_EXIT_STATUS_FILE"))
+		else:
+			mysettings.pop("EBUILD_EXIT_STATUS_FILE", None)
+
+		# if any of these are being called, handle them -- running them out of
+		# the sandbox -- and stop now.
+		if mydo == "help":
+			return spawn(_shell_quote(ebuild_sh_binary) + " " + mydo,
+				mysettings, debug=debug, free=1, logfile=logfile)
+		elif mydo == "setup":
+			retval = spawn(
+				_shell_quote(ebuild_sh_binary) + " " + mydo, mysettings,
+				debug=debug, free=1, logfile=logfile, fd_pipes=fd_pipes,
+				returnpid=returnpid)
+			if returnpid:
+				return retval
+			retval = exit_status_check(retval)
+			if secpass >= 2:
+				""" Privileged phases may have left files that need to be made
+				writable to a less privileged user."""
+				apply_recursive_permissions(mysettings["T"],
+					uid=portage_uid, gid=portage_gid, dirmode=0o70, dirmask=0,
+					filemode=0o60, filemask=0)
+			return retval
+		elif mydo == "preinst":
+			phase_retval = spawn(
+				_shell_quote(ebuild_sh_binary) + " " + mydo,
+				mysettings, debug=debug, free=1, logfile=logfile,
+				fd_pipes=fd_pipes, returnpid=returnpid)
+
+			if returnpid:
+				return phase_retval
+
+			phase_retval = exit_status_check(phase_retval)
+			if phase_retval == os.EX_OK:
+				_doebuild_exit_status_unlink(
+					mysettings.get("EBUILD_EXIT_STATUS_FILE"))
+				mysettings.pop("EBUILD_PHASE", None)
+				phase_retval = spawn(
+					" ".join(_post_pkg_preinst_cmd(mysettings)),
+					mysettings, debug=debug, free=1, logfile=logfile)
+				phase_retval = exit_status_check(phase_retval)
+				if phase_retval != os.EX_OK:
+					writemsg(_("!!! post preinst failed; exiting.\n"),
+						noiselevel=-1)
+			return phase_retval
+		elif mydo == "postinst":
+			phase_retval = spawn(
+				_shell_quote(ebuild_sh_binary) + " " + mydo,
+				mysettings, debug=debug, free=1, logfile=logfile,
+				fd_pipes=fd_pipes, returnpid=returnpid)
+
+			if returnpid:
+				return phase_retval
+
+			phase_retval = exit_status_check(phase_retval)
+			if phase_retval == os.EX_OK:
+				_doebuild_exit_status_unlink(
+					mysettings.get("EBUILD_EXIT_STATUS_FILE"))
+				mysettings.pop("EBUILD_PHASE", None)
+				phase_retval = spawn(" ".join(_post_pkg_postinst_cmd(mysettings)),
+					mysettings, debug=debug, free=1, logfile=logfile)
+				phase_retval = exit_status_check(phase_retval)
+				if phase_retval != os.EX_OK:
+					writemsg(_("!!! post postinst failed; exiting.\n"),
+						noiselevel=-1)
+			return phase_retval
+		elif mydo in ("prerm", "postrm", "config", "info"):
+			retval =  spawn(
+				_shell_quote(ebuild_sh_binary) + " " + mydo,
+				mysettings, debug=debug, free=1, logfile=logfile,
+				fd_pipes=fd_pipes, returnpid=returnpid)
+
+			if returnpid:
+				return retval
+
+			retval = exit_status_check(retval)
+			return retval
+
+		mycpv = "/".join((mysettings["CATEGORY"], mysettings["PF"]))
+
+		emerge_skip_distfiles = returnpid
+		emerge_skip_digest = returnpid
+		# Only try and fetch the files if we are going to need them ...
+		# otherwise, if user has FEATURES=noauto and they run `ebuild clean
+		# unpack compile install`, we will try and fetch 4 times :/
+		need_distfiles = not emerge_skip_distfiles and \
+			(mydo in ("fetch", "unpack") or \
+			mydo not in ("digest", "manifest") and "noauto" not in features)
+		alist = mysettings.configdict["pkg"].get("A")
+		aalist = mysettings.configdict["pkg"].get("AA")
+		if alist is None or aalist is None:
+			# Make sure we get the correct tree in case there are overlays.
+			mytree = os.path.realpath(
+				os.path.dirname(os.path.dirname(mysettings["O"])))
+			useflags = mysettings["PORTAGE_USE"].split()
+			try:
+				alist = mydbapi.getFetchMap(mycpv, useflags=useflags,
+					mytree=mytree)
+				aalist = mydbapi.getFetchMap(mycpv, mytree=mytree)
+			except InvalidDependString as e:
+				writemsg("!!! %s\n" % str(e), noiselevel=-1)
+				writemsg(_("!!! Invalid SRC_URI for '%s'.\n") % mycpv,
+					noiselevel=-1)
+				del e
+				return 1
+			mysettings.configdict["pkg"]["A"] = " ".join(alist)
+			mysettings.configdict["pkg"]["AA"] = " ".join(aalist)
+		else:
+			alist = set(alist.split())
+			aalist = set(aalist.split())
+		if ("mirror" in features) or fetchall:
+			fetchme = aalist
+			checkme = aalist
+		else:
+			fetchme = alist
+			checkme = alist
+
+		if mydo == "fetch":
+			# Files are already checked inside fetch(),
+			# so do not check them again.
+			checkme = []
+
+		if not emerge_skip_distfiles and \
+			need_distfiles and not fetch(
+			fetchme, mysettings, listonly=listonly, fetchonly=fetchonly):
+			return 1
+
+		if mydo == "fetch" and listonly:
+			return 0
+
+		try:
+			if mydo == "manifest":
+				return not digestgen(mysettings=mysettings, myportdb=mydbapi)
+			elif mydo == "digest":
+				return not digestgen(mysettings=mysettings, myportdb=mydbapi)
+			elif mydo != 'fetch' and not emerge_skip_digest and \
+				"digest" in mysettings.features:
+				# Don't do this when called by emerge or when called just
+				# for fetch (especially parallel-fetch) since it's not needed
+				# and it can interfere with parallel tasks.
+				digestgen(mysettings=mysettings, myportdb=mydbapi)
+		except PermissionDenied as e:
+			writemsg(_("!!! Permission Denied: %s\n") % (e,), noiselevel=-1)
+			if mydo in ("digest", "manifest"):
+				return 1
+
+		# See above comment about fetching only when needed
+		if not emerge_skip_distfiles and \
+			not digestcheck(checkme, mysettings, "strict" in features):
+			return 1
+
+		if mydo == "fetch":
+			return 0
+
+		# remove PORTAGE_ACTUAL_DISTDIR once cvs/svn is supported via SRC_URI
+		if (mydo != "setup" and "noauto" not in features) or mydo == "unpack":
+			orig_distdir = mysettings["DISTDIR"]
+			mysettings["PORTAGE_ACTUAL_DISTDIR"] = orig_distdir
+			edpath = mysettings["DISTDIR"] = \
+				os.path.join(mysettings["PORTAGE_BUILDDIR"], "distdir")
+			portage.util.ensure_dirs(edpath, gid=portage_gid, mode=0o755)
+
+			# Remove any unexpected files or directories.
+			for x in os.listdir(edpath):
+				symlink_path = os.path.join(edpath, x)
+				st = os.lstat(symlink_path)
+				if x in alist and stat.S_ISLNK(st.st_mode):
+					continue
+				if stat.S_ISDIR(st.st_mode):
+					shutil.rmtree(symlink_path)
+				else:
+					os.unlink(symlink_path)
+
+			# Check for existing symlinks and recreate if necessary.
+			for x in alist:
+				symlink_path = os.path.join(edpath, x)
+				target = os.path.join(orig_distdir, x)
+				try:
+					link_target = os.readlink(symlink_path)
+				except OSError:
+					os.symlink(target, symlink_path)
+				else:
+					if link_target != target:
+						os.unlink(symlink_path)
+						os.symlink(target, symlink_path)
+
+		#initial dep checks complete; time to process main commands
+
+		restrict = mysettings["PORTAGE_RESTRICT"].split()
+		nosandbox = (("userpriv" in features) and \
+			("usersandbox" not in features) and \
+			"userpriv" not in restrict and \
+			"nouserpriv" not in restrict)
+		if nosandbox and ("userpriv" not in features or \
+			"userpriv" in restrict or \
+			"nouserpriv" in restrict):
+			nosandbox = ("sandbox" not in features and \
+				"usersandbox" not in features)
+
+		if not portage.process.sandbox_capable:
+			nosandbox = True
+
+		sesandbox = mysettings.selinux_enabled() and \
+			"sesandbox" in mysettings.features
+
+		droppriv = "userpriv" in mysettings.features and \
+			"userpriv" not in restrict and \
+			secpass >= 2
+
+		fakeroot = "fakeroot" in mysettings.features
+
+		ebuild_sh = _shell_quote(ebuild_sh_binary) + " %s"
+		misc_sh = _shell_quote(misc_sh_binary) + " dyn_%s"
+
+		# args are for the to spawn function
+		actionmap = {
+"pretend":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
+"setup":    {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
+"unpack":   {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
+"prepare":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
+"configure":{"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
+"compile":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
+"test":     {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
+"install":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":0,         "sesandbox":sesandbox, "fakeroot":fakeroot}},
+"rpm":      {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},
+"package":  {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},
+		}
+
+		# merge the deps in so we have again a 'full' actionmap
+		# be glad when this can die.
+		for x in actionmap:
+			if len(actionmap_deps.get(x, [])):
+				actionmap[x]["dep"] = ' '.join(actionmap_deps[x])
+
+		if mydo in actionmap:
+			if mydo == "package":
+				# Make sure the package directory exists before executing
+				# this phase. This can raise PermissionDenied if
+				# the current user doesn't have write access to $PKGDIR.
+				parent_dir = os.path.join(mysettings["PKGDIR"],
+					mysettings["CATEGORY"])
+				portage.util.ensure_dirs(parent_dir)
+				if not os.access(parent_dir, os.W_OK):
+					raise PermissionDenied(
+						"access('%s', os.W_OK)" % parent_dir)
+			retval = spawnebuild(mydo,
+				actionmap, mysettings, debug, logfile=logfile,
+				fd_pipes=fd_pipes, returnpid=returnpid)
+		elif mydo=="qmerge":
+			# check to ensure install was run.  this *only* pops up when users
+			# forget it and are using ebuild
+			if not os.path.exists(
+				os.path.join(mysettings["PORTAGE_BUILDDIR"], ".installed")):
+				writemsg(_("!!! mydo=qmerge, but the install phase has not been run\n"),
+					noiselevel=-1)
+				return 1
+			# qmerge is a special phase that implies noclean.
+			if "noclean" not in mysettings.features:
+				mysettings.features.add("noclean")
+			#qmerge is specifically not supposed to do a runtime dep check
+			retval = merge(
+				mysettings["CATEGORY"], mysettings["PF"], mysettings["D"],
+				os.path.join(mysettings["PORTAGE_BUILDDIR"], "build-info"),
+				myroot, mysettings, myebuild=mysettings["EBUILD"], mytree=tree,
+				mydbapi=mydbapi, vartree=vartree, prev_mtimes=prev_mtimes)
+		elif mydo=="merge":
+			retval = spawnebuild("install", actionmap, mysettings, debug,
+				alwaysdep=1, logfile=logfile, fd_pipes=fd_pipes,
+				returnpid=returnpid)
+			retval = exit_status_check(retval)
+			if retval != os.EX_OK:
+				# The merge phase handles this already.  Callers don't know how
+				# far this function got, so we have to call elog_process() here
+				# so that it's only called once.
+				from portage.elog import elog_process
+				elog_process(mysettings.mycpv, mysettings)
+			if retval == os.EX_OK:
+				retval = merge(mysettings["CATEGORY"], mysettings["PF"],
+					mysettings["D"], os.path.join(mysettings["PORTAGE_BUILDDIR"],
+					"build-info"), myroot, mysettings,
+					myebuild=mysettings["EBUILD"], mytree=tree, mydbapi=mydbapi,
+					vartree=vartree, prev_mtimes=prev_mtimes)
+		else:
+			print(_("!!! Unknown mydo: %s") % mydo)
+			return 1
+
+		return retval
+
+	finally:
+
+		if tmpdir:
+			mysettings["PORTAGE_TMPDIR"] = tmpdir_orig
+			shutil.rmtree(tmpdir)
+		if builddir_lock:
+			portage.locks.unlockdir(builddir_lock)
+
+		# Make sure that DISTDIR is restored to it's normal value before we return!
+		if "PORTAGE_ACTUAL_DISTDIR" in mysettings:
+			mysettings["DISTDIR"] = mysettings["PORTAGE_ACTUAL_DISTDIR"]
+			del mysettings["PORTAGE_ACTUAL_DISTDIR"]
+
+		if logfile:
+			try:
+				if os.stat(logfile).st_size == 0:
+					os.unlink(logfile)
+			except OSError:
+				pass
+
+		if mydo in ("digest", "manifest", "help"):
+			# If necessary, depend phase has been triggered by aux_get calls
+			# and the exemption is no longer needed.
+			_doebuild_manifest_exempt_depend -= 1
+
+def _validate_deps(mysettings, myroot, mydo, mydbapi):
+
+	invalid_dep_exempt_phases = \
+		set(["clean", "cleanrm", "help", "prerm", "postrm"])
+	dep_keys = ["DEPEND", "RDEPEND", "PDEPEND"]
+	misc_keys = ["LICENSE", "PROPERTIES", "PROVIDE", "RESTRICT", "SRC_URI"]
+	other_keys = ["SLOT"]
+	all_keys = dep_keys + misc_keys + other_keys
+	metadata = dict(zip(all_keys,
+		mydbapi.aux_get(mysettings.mycpv, all_keys)))
+
+	class FakeTree(object):
+		def __init__(self, mydb):
+			self.dbapi = mydb
+	dep_check_trees = {myroot:{}}
+	dep_check_trees[myroot]["porttree"] = \
+		FakeTree(fakedbapi(settings=mysettings))
+
+	msgs = []
+	for dep_type in dep_keys:
+		mycheck = dep_check(metadata[dep_type], None, mysettings,
+			myuse="all", myroot=myroot, trees=dep_check_trees)
+		if not mycheck[0]:
+			msgs.append("  %s: %s\n    %s\n" % (
+				dep_type, metadata[dep_type], mycheck[1]))
+
+	for k in misc_keys:
+		try:
+			use_reduce(
+				paren_reduce(metadata[k]), matchall=True)
+		except InvalidDependString as e:
+			msgs.append("  %s: %s\n    %s\n" % (
+				k, metadata[k], str(e)))
+
+	if not metadata["SLOT"]:
+		msgs.append(_("  SLOT is undefined\n"))
+
+	if msgs:
+		portage.util.writemsg_level(_("Error(s) in metadata for '%s':\n") % \
+			(mysettings.mycpv,), level=logging.ERROR, noiselevel=-1)
+		for x in msgs:
+			portage.util.writemsg_level(x,
+				level=logging.ERROR, noiselevel=-1)
+		if mydo not in invalid_dep_exempt_phases:
+			return 1
+
+	return os.EX_OK
+
+# XXX This would be to replace getstatusoutput completely.
+# XXX Issue: cannot block execution. Deadlock condition.
+def spawn(mystring, mysettings, debug=0, free=0, droppriv=0, sesandbox=0, fakeroot=0, **keywords):
+	"""
+	Spawn a subprocess with extra portage-specific options.
+	Optiosn include:
+
+	Sandbox: Sandbox means the spawned process will be limited in its ability t
+	read and write files (normally this means it is restricted to ${D}/)
+	SElinux Sandbox: Enables sandboxing on SElinux
+	Reduced Privileges: Drops privilages such that the process runs as portage:portage
+	instead of as root.
+
+	Notes: os.system cannot be used because it messes with signal handling.  Instead we
+	use the portage.process spawn* family of functions.
+
+	This function waits for the process to terminate.
+
+	@param mystring: Command to run
+	@type mystring: String
+	@param mysettings: Either a Dict of Key,Value pairs or an instance of portage.config
+	@type mysettings: Dictionary or config instance
+	@param debug: Ignored
+	@type debug: Boolean
+	@param free: Enable sandboxing for this process
+	@type free: Boolean
+	@param droppriv: Drop to portage:portage when running this command
+	@type droppriv: Boolean
+	@param sesandbox: Enable SELinux Sandboxing (toggles a context switch)
+	@type sesandbox: Boolean
+	@param fakeroot: Run this command with faked root privileges
+	@type fakeroot: Boolean
+	@param keywords: Extra options encoded as a dict, to be passed to spawn
+	@type keywords: Dictionary
+	@rtype: Integer
+	@returns:
+	1. The return code of the spawned process.
+	"""
+
+	if isinstance(mysettings, dict):
+		env=mysettings
+		keywords["opt_name"]="[ %s ]" % "portage"
+	else:
+		check_config_instance(mysettings)
+		env=mysettings.environ()
+		if mysettings.mycpv is not None:
+			keywords["opt_name"] = "[%s]" % mysettings.mycpv
+		else:
+			keywords["opt_name"] = "[%s/%s]" % \
+				(mysettings.get("CATEGORY",""), mysettings.get("PF",""))
+
+	fd_pipes = keywords.get("fd_pipes")
+	if fd_pipes is None:
+		fd_pipes = {
+			0:sys.stdin.fileno(),
+			1:sys.stdout.fileno(),
+			2:sys.stderr.fileno(),
+		}
+	# In some cases the above print statements don't flush stdout, so
+	# it needs to be flushed before allowing a child process to use it
+	# so that output always shows in the correct order.
+	stdout_filenos = (sys.stdout.fileno(), sys.stderr.fileno())
+	for fd in fd_pipes.values():
+		if fd in stdout_filenos:
+			sys.stdout.flush()
+			sys.stderr.flush()
+			break
+
+	# The default policy for the sesandbox domain only allows entry (via exec)
+	# from shells and from binaries that belong to portage (the number of entry
+	# points is minimized).  The "tee" binary is not among the allowed entry
+	# points, so it is spawned outside of the sesandbox domain and reads from a
+	# pseudo-terminal that connects two domains.
+	logfile = keywords.get("logfile")
+	mypids = []
+	master_fd = None
+	slave_fd = None
+	fd_pipes_orig = None
+	got_pty = False
+	if logfile:
+		del keywords["logfile"]
+		if 1 not in fd_pipes or 2 not in fd_pipes:
+			raise ValueError(fd_pipes)
+
+		got_pty, master_fd, slave_fd = \
+			_create_pty_or_pipe(copy_term_size=fd_pipes[1])
+
+		if not got_pty and 'sesandbox' in mysettings.features \
+			and mysettings.selinux_enabled():
+			# With sesandbox, logging works through a pty but not through a
+			# normal pipe. So, disable logging if ptys are broken.
+			# See Bug #162404.
+			logfile = None
+			os.close(master_fd)
+			master_fd = None
+			os.close(slave_fd)
+			slave_fd = None
+
+	if logfile:
+
+		fd_pipes.setdefault(0, sys.stdin.fileno())
+		fd_pipes_orig = fd_pipes.copy()
+
+		# We must set non-blocking mode before we close the slave_fd
+		# since otherwise the fcntl call can fail on FreeBSD (the child
+		# process might have already exited and closed slave_fd so we
+		# have to keep it open in order to avoid FreeBSD potentially
+		# generating an EAGAIN exception).
+		import fcntl
+		fcntl.fcntl(master_fd, fcntl.F_SETFL,
+			fcntl.fcntl(master_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
+
+		fd_pipes[0] = fd_pipes_orig[0]
+		fd_pipes[1] = slave_fd
+		fd_pipes[2] = slave_fd
+		keywords["fd_pipes"] = fd_pipes
+
+	features = mysettings.features
+	# TODO: Enable fakeroot to be used together with droppriv.  The
+	# fake ownership/permissions will have to be converted to real
+	# permissions in the merge phase.
+	fakeroot = fakeroot and uid != 0 and portage.process.fakeroot_capable
+	if droppriv and not uid and portage_gid and portage_uid:
+		keywords.update({"uid":portage_uid,"gid":portage_gid,
+			"groups":userpriv_groups,"umask":0o02})
+	if not free:
+		free=((droppriv and "usersandbox" not in features) or \
+			(not droppriv and "sandbox" not in features and \
+			"usersandbox" not in features and not fakeroot))
+
+	if not free and not (fakeroot or portage.process.sandbox_capable):
+		free = True
+
+	if free or "SANDBOX_ACTIVE" in os.environ:
+		keywords["opt_name"] += " bash"
+		spawn_func = portage.process.spawn_bash
+	elif fakeroot:
+		keywords["opt_name"] += " fakeroot"
+		keywords["fakeroot_state"] = os.path.join(mysettings["T"], "fakeroot.state")
+		spawn_func = portage.process.spawn_fakeroot
+	else:
+		keywords["opt_name"] += " sandbox"
+		spawn_func = portage.process.spawn_sandbox
+
+	if sesandbox:
+		spawn_func = selinux.spawn_wrapper(spawn_func,
+			mysettings["PORTAGE_SANDBOX_T"])
+
+	returnpid = keywords.get("returnpid")
+	keywords["returnpid"] = True
+	try:
+		mypids.extend(spawn_func(mystring, env=env, **keywords))
+	finally:
+		if logfile:
+			os.close(slave_fd)
+
+	if returnpid:
+		return mypids
+
+	if logfile:
+		log_file = open(_unicode_encode(logfile), mode='ab')
+		apply_secpass_permissions(logfile,
+			uid=portage_uid, gid=portage_gid, mode=0o664)
+		stdout_file = os.fdopen(os.dup(fd_pipes_orig[1]), 'wb')
+		master_file = os.fdopen(master_fd, 'rb')
+		iwtd = [master_file]
+		owtd = []
+		ewtd = []
+		import array, select
+		buffsize = 65536
+		eof = False
+		while not eof:
+			events = select.select(iwtd, owtd, ewtd)
+			for f in events[0]:
+				# Use non-blocking mode to prevent read
+				# calls from blocking indefinitely.
+				buf = array.array('B')
+				try:
+					buf.fromfile(f, buffsize)
+				except EOFError:
+					pass
+				if not buf:
+					eof = True
+					break
+				if f is master_file:
+					buf.tofile(stdout_file)
+					stdout_file.flush()
+					buf.tofile(log_file)
+					log_file.flush()
+		log_file.close()
+		stdout_file.close()
+		master_file.close()
+	pid = mypids[-1]
+	retval = os.waitpid(pid, 0)[1]
+	portage.process.spawned_pids.remove(pid)
+	if retval != os.EX_OK:
+		if retval & 0xff:
+			return (retval & 0xff) << 8
+		return retval >> 8
+	return retval
+
+
+# parse actionmap to spawn ebuild with the appropriate args
+def spawnebuild(mydo, actionmap, mysettings, debug, alwaysdep=0,
+	logfile=None, fd_pipes=None, returnpid=False):
+	if not returnpid and \
+		(alwaysdep or "noauto" not in mysettings.features):
+		# process dependency first
+		if "dep" in actionmap[mydo]:
+			retval = spawnebuild(actionmap[mydo]["dep"], actionmap,
+				mysettings, debug, alwaysdep=alwaysdep, logfile=logfile,
+				fd_pipes=fd_pipes, returnpid=returnpid)
+			if retval:
+				return retval
+
+	eapi = mysettings["EAPI"]
+
+	if mydo == "configure" and eapi in ("0", "1"):
+		return os.EX_OK
+
+	if mydo == "prepare" and eapi in ("0", "1"):
+		return os.EX_OK
+
+	if mydo == "pretend" and eapi in ("0", "1", "2", "3", "3_pre2"):
+		return os.EX_OK
+
+	kwargs = actionmap[mydo]["args"]
+	mysettings["EBUILD_PHASE"] = mydo
+	_doebuild_exit_status_unlink(
+		mysettings.get("EBUILD_EXIT_STATUS_FILE"))
+
+	try:
+		phase_retval = spawn(actionmap[mydo]["cmd"] % mydo,
+			mysettings, debug=debug, logfile=logfile,
+			fd_pipes=fd_pipes, returnpid=returnpid, **kwargs)
+	finally:
+		mysettings["EBUILD_PHASE"] = ""
+
+	if returnpid:
+		return phase_retval
+
+	msg = _doebuild_exit_status_check(mydo, mysettings)
+	if msg:
+		if phase_retval == os.EX_OK:
+			phase_retval = 1
+		for l in wrap(msg, 72):
+			eerror(l, phase=mydo, key=mysettings.mycpv)
+
+	_post_phase_userpriv_perms(mysettings)
+	if mydo == "install":
+		out = StringIO()
+		_check_build_log(mysettings, out=out)
+		msg = _unicode_decode(out.getvalue(),
+			encoding=_encodings['content'], errors='replace')
+		if msg:
+			writemsg_stdout(msg, noiselevel=-1)
+			if logfile is not None:
+				try:
+					f = codecs.open(_unicode_encode(logfile,
+						encoding=_encodings['fs'], errors='strict'),
+						mode='a', encoding=_encodings['content'],
+						errors='replace')
+				except EnvironmentError:
+					pass
+				else:
+					f.write(msg)
+					f.close()
+		if phase_retval == os.EX_OK:
+			_post_src_install_chost_fix(mysettings)
+			phase_retval = _post_src_install_checks(mysettings)
+
+	if mydo == "test" and phase_retval != os.EX_OK and \
+		"test-fail-continue" in mysettings.features:
+		phase_retval = os.EX_OK
+
+	return phase_retval
+
+_post_phase_cmds = {
+
+	"install" : [
+		"install_qa_check",
+		"install_symlink_html_docs"],
+
+	"preinst" : [
+		"preinst_bsdflags",
+		"preinst_sfperms",
+		"preinst_selinux_labels",
+		"preinst_suid_scan",
+		"preinst_mask"],
+
+	"postinst" : [
+		"postinst_bsdflags"]
+}
+
+def _post_phase_userpriv_perms(mysettings):
+	if "userpriv" in mysettings.features and secpass >= 2:
+		""" Privileged phases may have left files that need to be made
+		writable to a less privileged user."""
+		apply_recursive_permissions(mysettings["T"],
+			uid=portage_uid, gid=portage_gid, dirmode=0o70, dirmask=0,
+			filemode=0o60, filemask=0)
+
+def _post_src_install_checks(mysettings):
+	_post_src_install_uid_fix(mysettings)
+	global _post_phase_cmds
+	retval = _spawn_misc_sh(mysettings, _post_phase_cmds["install"],
+		phase='internal_post_src_install')
+	if retval != os.EX_OK:
+		writemsg(_("!!! install_qa_check failed; exiting.\n"),
+			noiselevel=-1)
+	return retval
+
+def _check_build_log(mysettings, out=None):
+	"""
+	Search the content of $PORTAGE_LOG_FILE if it exists
+	and generate the following QA Notices when appropriate:
+
+	  * Automake "maintainer mode"
+	  * command not found
+	  * Unrecognized configure options
+	"""
+	logfile = mysettings.get("PORTAGE_LOG_FILE")
+	if logfile is None:
+		return
+	try:
+		f = codecs.open(_unicode_encode(logfile,
+			encoding=_encodings['fs'], errors='strict'),
+			mode='r', encoding=_encodings['content'], errors='replace')
+	except EnvironmentError:
+		return
+
+	am_maintainer_mode = []
+	bash_command_not_found = []
+	bash_command_not_found_re = re.compile(
+		r'(.*): line (\d*): (.*): command not found$')
+	command_not_found_exclude_re = re.compile(r'/configure: line ')
+	helper_missing_file = []
+	helper_missing_file_re = re.compile(
+		r'^!!! (do|new).*: .* does not exist$')
+
+	configure_opts_warn = []
+	configure_opts_warn_re = re.compile(
+		r'^configure: WARNING: [Uu]nrecognized options: ')
+
+	# Exclude output from dev-libs/yaz-3.0.47 which looks like this:
+	#
+	#Configuration:
+	#  Automake:                   ${SHELL} /var/tmp/portage/dev-libs/yaz-3.0.47/work/yaz-3.0.47/config/missing --run automake-1.10
+	am_maintainer_mode_re = re.compile(r'/missing --run ')
+	am_maintainer_mode_exclude_re = \
+		re.compile(r'(/missing --run (autoheader|makeinfo)|^\s*Automake:\s)')
+
+	make_jobserver_re = \
+		re.compile(r'g?make\[\d+\]: warning: jobserver unavailable:')
+	make_jobserver = []
+
+	try:
+		for line in f:
+			if am_maintainer_mode_re.search(line) is not None and \
+				am_maintainer_mode_exclude_re.search(line) is None:
+				am_maintainer_mode.append(line.rstrip("\n"))
+
+			if bash_command_not_found_re.match(line) is not None and \
+				command_not_found_exclude_re.search(line) is None:
+				bash_command_not_found.append(line.rstrip("\n"))
+
+			if helper_missing_file_re.match(line) is not None:
+				helper_missing_file.append(line.rstrip("\n"))
+
+			if configure_opts_warn_re.match(line) is not None:
+				configure_opts_warn.append(line.rstrip("\n"))
+
+			if make_jobserver_re.match(line) is not None:
+				make_jobserver.append(line.rstrip("\n"))
+
+	finally:
+		f.close()
+
+	def _eqawarn(lines):
+		for line in lines:
+			eqawarn(line, phase="install", key=mysettings.mycpv, out=out)
+	wrap_width = 70
+
+	if am_maintainer_mode:
+		msg = [_("QA Notice: Automake \"maintainer mode\" detected:")]
+		msg.append("")
+		msg.extend("\t" + line for line in am_maintainer_mode)
+		msg.append("")
+		msg.extend(wrap(_(
+			"If you patch Makefile.am, "
+			"configure.in,  or configure.ac then you "
+			"should use autotools.eclass and "
+			"eautomake or eautoreconf. Exceptions "
+			"are limited to system packages "
+			"for which it is impossible to run "
+			"autotools during stage building. "
+			"See http://www.gentoo.org/p"
+			"roj/en/qa/autofailure.xml for more information."),
+			wrap_width))
+		_eqawarn(msg)
+
+	if bash_command_not_found:
+		msg = [_("QA Notice: command not found:")]
+		msg.append("")
+		msg.extend("\t" + line for line in bash_command_not_found)
+		_eqawarn(msg)
+
+	if helper_missing_file:
+		msg = [_("QA Notice: file does not exist:")]
+		msg.append("")
+		msg.extend("\t" + line[4:] for line in helper_missing_file)
+		_eqawarn(msg)
+
+	if configure_opts_warn:
+		msg = [_("QA Notice: Unrecognized configure options:")]
+		msg.append("")
+		msg.extend("\t" + line for line in configure_opts_warn)
+		_eqawarn(msg)
+
+	if make_jobserver:
+		msg = [_("QA Notice: make jobserver unavailable:")]
+		msg.append("")
+		msg.extend("\t" + line for line in make_jobserver)
+		_eqawarn(msg)
+
+def _post_src_install_chost_fix(settings):
+	"""
+	It's possible that the ebuild has changed the
+	CHOST variable, so revert it to the initial
+	setting.
+	"""
+	if settings.get('CATEGORY') == 'virtual':
+		return
+
+	chost = settings.get('CHOST')
+	if chost:
+		write_atomic(os.path.join(settings['PORTAGE_BUILDDIR'],
+			'build-info', 'CHOST'), chost + '\n')
+
+_vdb_use_conditional_keys = ('DEPEND', 'LICENSE', 'PDEPEND',
+	'PROPERTIES', 'PROVIDE', 'RDEPEND', 'RESTRICT',)
+_vdb_use_conditional_atoms = frozenset(['DEPEND', 'PDEPEND', 'RDEPEND'])
+
+def _post_src_install_uid_fix(mysettings, out=None):
+	"""
+	Files in $D with user and group bits that match the "portage"
+	user or group are automatically mapped to PORTAGE_INST_UID and
+	PORTAGE_INST_GID if necessary. The chown system call may clear
+	S_ISUID and S_ISGID bits, so those bits are restored if
+	necessary.
+	"""
+
+	os = _os_merge
+
+	inst_uid = int(mysettings["PORTAGE_INST_UID"])
+	inst_gid = int(mysettings["PORTAGE_INST_GID"])
+
+	if bsd_chflags:
+		# Temporarily remove all of the flags in order to avoid EPERM errors.
+		os.system("mtree -c -p %s -k flags > %s" % \
+			(_shell_quote(mysettings["D"]),
+			_shell_quote(os.path.join(mysettings["T"], "bsdflags.mtree"))))
+		os.system("chflags -R noschg,nouchg,nosappnd,nouappnd %s" % \
+			(_shell_quote(mysettings["D"]),))
+		os.system("chflags -R nosunlnk,nouunlnk %s 2>/dev/null" % \
+			(_shell_quote(mysettings["D"]),))
+
+	destdir = mysettings["D"]
+	unicode_errors = []
+
+	while True:
+
+		unicode_error = False
+		size = 0
+		counted_inodes = set()
+
+		for parent, dirs, files in os.walk(destdir):
+			try:
+				parent = _unicode_decode(parent,
+					encoding=_encodings['merge'], errors='strict')
+			except UnicodeDecodeError:
+				new_parent = _unicode_decode(parent,
+					encoding=_encodings['merge'], errors='replace')
+				new_parent = _unicode_encode(new_parent,
+					encoding=_encodings['merge'], errors='backslashreplace')
+				new_parent = _unicode_decode(new_parent,
+					encoding=_encodings['merge'], errors='replace')
+				os.rename(parent, new_parent)
+				unicode_error = True
+				unicode_errors.append(new_parent[len(destdir):])
+				break
+
+			for fname in chain(dirs, files):
+				try:
+					fname = _unicode_decode(fname,
+						encoding=_encodings['merge'], errors='strict')
+				except UnicodeDecodeError:
+					fpath = _os.path.join(
+						parent.encode(_encodings['merge']), fname)
+					new_fname = _unicode_decode(fname,
+						encoding=_encodings['merge'], errors='replace')
+					new_fname = _unicode_encode(new_fname,
+						encoding=_encodings['merge'], errors='backslashreplace')
+					new_fname = _unicode_decode(new_fname,
+						encoding=_encodings['merge'], errors='replace')
+					new_fpath = os.path.join(parent, new_fname)
+					os.rename(fpath, new_fpath)
+					unicode_error = True
+					unicode_errors.append(new_fpath[len(destdir):])
+					fname = new_fname
+					fpath = new_fpath
+				else:
+					fpath = os.path.join(parent, fname)
+
+				mystat = os.lstat(fpath)
+				if stat.S_ISREG(mystat.st_mode) and \
+					mystat.st_ino not in counted_inodes:
+					counted_inodes.add(mystat.st_ino)
+					size += mystat.st_size
+				if mystat.st_uid != portage_uid and \
+					mystat.st_gid != portage_gid:
+					continue
+				myuid = -1
+				mygid = -1
+				if mystat.st_uid == portage_uid:
+					myuid = inst_uid
+				if mystat.st_gid == portage_gid:
+					mygid = inst_gid
+				apply_secpass_permissions(
+					_unicode_encode(fpath, encoding=_encodings['merge']),
+					uid=myuid, gid=mygid,
+					mode=mystat.st_mode, stat_cached=mystat,
+					follow_links=False)
+
+			if unicode_error:
+				break
+
+		if not unicode_error:
+			break
+
+	if unicode_errors:
+		from portage.elog.messages import eerror
+		for l in _merge_unicode_error(unicode_errors):
+			eerror(l, phase='install', key=mysettings.mycpv, out=out)
+
+	build_info_dir = os.path.join(mysettings['PORTAGE_BUILDDIR'],
+		'build-info')
+
+	codecs.open(_unicode_encode(os.path.join(build_info_dir,
+		'SIZE'), encoding=_encodings['fs'], errors='strict'),
+		'w', encoding=_encodings['repo.content'],
+		errors='strict').write(str(size) + '\n')
+
+	codecs.open(_unicode_encode(os.path.join(build_info_dir,
+		'BUILD_TIME'), encoding=_encodings['fs'], errors='strict'),
+		'w', encoding=_encodings['repo.content'],
+		errors='strict').write(str(int(time.time())) + '\n')
+
+	use = frozenset(mysettings['PORTAGE_USE'].split())
+	for k in _vdb_use_conditional_keys:
+		v = mysettings.configdict['pkg'].get(k)
+		if v is None:
+			continue
+		v = paren_reduce(v)
+		v = use_reduce(v, uselist=use)
+		v = paren_normalize(v)
+		v = paren_enclose(v)
+		if not v:
+			continue
+		if v in _vdb_use_conditional_atoms:
+			v_split = []
+			for x in v.split():
+				try:
+					x = Atom(x)
+				except InvalidAtom:
+					v_split.append(x)
+				else:
+					v_split.append(str(x.evaluate_conditionals(use)))
+			v = ' '.join(v_split)
+		codecs.open(_unicode_encode(os.path.join(build_info_dir,
+			k), encoding=_encodings['fs'], errors='strict'),
+			mode='w', encoding=_encodings['repo.content'],
+			errors='strict').write(v + '\n')
+
+	if bsd_chflags:
+		# Restore all of the flags saved above.
+		os.system("mtree -e -p %s -U -k flags < %s > /dev/null" % \
+			(_shell_quote(mysettings["D"]),
+			_shell_quote(os.path.join(mysettings["T"], "bsdflags.mtree"))))
+
+def _merge_unicode_error(errors):
+	lines = []
+
+	msg = _("This package installs one or more file names containing "
+		"characters that do not match your current locale "
+		"settings. The current setting for filesystem encoding is '%s'.") \
+		% _encodings['merge']
+	lines.extend(wrap(msg, 72))
+
+	lines.append("")
+	errors.sort()
+	lines.extend("\t" + x for x in errors)
+	lines.append("")
+
+	if _encodings['merge'].lower().replace('_', '').replace('-', '') != 'utf8':
+		msg = _("For best results, UTF-8 encoding is recommended. See "
+			"the Gentoo Linux Localization Guide for instructions "
+			"about how to configure your locale for UTF-8 encoding:")
+		lines.extend(wrap(msg, 72))
+		lines.append("")
+		lines.append("\t" + \
+			"http://www.gentoo.org/doc/en/guide-localization.xml")
+		lines.append("")
+
+	return lines
+
+def _post_pkg_preinst_cmd(mysettings):
+	"""
+	Post phase logic and tasks that have been factored out of
+	ebuild.sh. Call preinst_mask last so that INSTALL_MASK can
+	can be used to wipe out any gmon.out files created during
+	previous functions (in case any tools were built with -pg
+	in CFLAGS).
+	"""
+
+	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
+	misc_sh_binary = os.path.join(portage_bin_path,
+		os.path.basename(MISC_SH_BINARY))
+
+	mysettings["EBUILD_PHASE"] = ""
+	global _post_phase_cmds
+	myargs = [_shell_quote(misc_sh_binary)] + _post_phase_cmds["preinst"]
+
+	return myargs
+
+def _post_pkg_postinst_cmd(mysettings):
+	"""
+	Post phase logic and tasks that have been factored out of
+	build.sh.
+	"""
+
+	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
+	misc_sh_binary = os.path.join(portage_bin_path,
+		os.path.basename(MISC_SH_BINARY))
+
+	mysettings["EBUILD_PHASE"] = ""
+	global _post_phase_cmds
+	myargs = [_shell_quote(misc_sh_binary)] + _post_phase_cmds["postinst"]
+
+	return myargs
+
+def _spawn_misc_sh(mysettings, commands, phase=None, **kwargs):
+	"""
+	@param mysettings: the ebuild config
+	@type mysettings: config
+	@param commands: a list of function names to call in misc-functions.sh
+	@type commands: list
+	@rtype: int
+	@returns: the return value from the spawn() call
+	"""
+
+	# Note: PORTAGE_BIN_PATH may differ from the global
+	# constant when portage is reinstalling itself.
+	portage_bin_path = mysettings["PORTAGE_BIN_PATH"]
+	misc_sh_binary = os.path.join(portage_bin_path,
+		os.path.basename(MISC_SH_BINARY))
+	mycommand = " ".join([_shell_quote(misc_sh_binary)] + commands)
+	_doebuild_exit_status_unlink(
+		mysettings.get("EBUILD_EXIT_STATUS_FILE"))
+	debug = mysettings.get("PORTAGE_DEBUG") == "1"
+	logfile = mysettings.get("PORTAGE_LOG_FILE")
+	mysettings.pop("EBUILD_PHASE", None)
+	try:
+		rval = spawn(mycommand, mysettings, debug=debug,
+			logfile=logfile, **kwargs)
+	finally:
+		pass
+
+	msg = _doebuild_exit_status_check(phase, mysettings)
+	if msg:
+		if rval == os.EX_OK:
+			rval = 1
+		for l in wrap(msg, 72):
+			eerror(l, phase=phase, key=mysettings.mycpv)
+
+	return rval


Property changes on: main/trunk/pym/portage/package/ebuild/doebuild.py
___________________________________________________________________
Added: svn:keywords
   + Id

Modified: main/trunk/pym/portage/package/ebuild/fetch.py
===================================================================
--- main/trunk/pym/portage/package/ebuild/fetch.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/portage/package/ebuild/fetch.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -15,7 +15,13 @@
 import stat
 import sys
 
-from portage import check_config_instance, doebuild_environment, OrderedDict, os, prepare_build_dirs, selinux, _encodings, _shell_quote, _unicode_encode
+
+import portage
+portage.proxy.lazyimport.lazyimport(globals(),
+	'portage.package.ebuild.config:check_config_instance,config',
+)
+
+from portage import doebuild_environment, OrderedDict, os, prepare_build_dirs, selinux, _encodings, _shell_quote, _unicode_encode
 from portage.checksum import perform_md5, verify_all
 from portage.const import BASH_BINARY, CUSTOM_MIRRORS_FILE, EBUILD_SH_BINARY, GLOBAL_CONFIG_PATH
 from portage.data import portage_gid, portage_uid, secpass, userpriv_groups
@@ -24,7 +30,6 @@
 from portage.locks import lockfile, unlockfile
 from portage.manifest import Manifest
 from portage.output import colorize, EOutput
-from portage.package.ebuild.config import config
 from portage.util import apply_recursive_permissions, apply_secpass_permissions, ensure_dirs, grabdict, shlex_split, varexpand, writemsg, writemsg_level, writemsg_stdout
 from portage.process import spawn
 

Added: main/trunk/pym/portage/package/ebuild/prepare_build_dirs.py
===================================================================
--- main/trunk/pym/portage/package/ebuild/prepare_build_dirs.py	                        (rev 0)
+++ main/trunk/pym/portage/package/ebuild/prepare_build_dirs.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -0,0 +1,304 @@
+# Copyright 2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+__all__ = ['prepare_build_dirs']
+
+import codecs
+import errno
+import shutil
+import stat
+import time
+
+from portage import os, _encodings, _unicode_encode, _unicode_decode
+from portage.data import portage_gid, portage_uid, secpass
+from portage.exception import DirectoryNotFound, FileNotFound, \
+	OperationNotPermitted, PermissionDenied, PortageException
+from portage.localization import _
+from portage.output import colorize
+from portage.util import apply_recursive_permissions, \
+	apply_secpass_permissions, ensure_dirs, writemsg
+
+def prepare_build_dirs(myroot, mysettings, cleanup):
+
+	clean_dirs = [mysettings["HOME"]]
+
+	# We enable cleanup when we want to make sure old cruft (such as the old
+	# environment) doesn't interfere with the current phase.
+	if cleanup:
+		clean_dirs.append(mysettings["T"])
+
+	for clean_dir in clean_dirs:
+		try:
+			shutil.rmtree(clean_dir)
+		except OSError as oe:
+			if errno.ENOENT == oe.errno:
+				pass
+			elif errno.EPERM == oe.errno:
+				writemsg("%s\n" % oe, noiselevel=-1)
+				writemsg(_("Operation Not Permitted: rmtree('%s')\n") % \
+					clean_dir, noiselevel=-1)
+				return 1
+			else:
+				raise
+
+	def makedirs(dir_path):
+		try:
+			os.makedirs(dir_path)
+		except OSError as oe:
+			if errno.EEXIST == oe.errno:
+				pass
+			elif errno.EPERM == oe.errno:
+				writemsg("%s\n" % oe, noiselevel=-1)
+				writemsg(_("Operation Not Permitted: makedirs('%s')\n") % \
+					dir_path, noiselevel=-1)
+				return False
+			else:
+				raise
+		return True
+
+	mysettings["PKG_LOGDIR"] = os.path.join(mysettings["T"], "logging")
+
+	mydirs = [os.path.dirname(mysettings["PORTAGE_BUILDDIR"])]
+	mydirs.append(os.path.dirname(mydirs[-1]))
+
+	try:
+		for mydir in mydirs:
+			ensure_dirs(mydir)
+			apply_secpass_permissions(mydir,
+				gid=portage_gid, uid=portage_uid, mode=0o70, mask=0)
+		for dir_key in ("PORTAGE_BUILDDIR", "HOME", "PKG_LOGDIR", "T"):
+			"""These directories don't necessarily need to be group writable.
+			However, the setup phase is commonly run as a privileged user prior
+			to the other phases being run by an unprivileged user.  Currently,
+			we use the portage group to ensure that the unprivleged user still
+			has write access to these directories in any case."""
+			ensure_dirs(mysettings[dir_key], mode=0o775)
+			apply_secpass_permissions(mysettings[dir_key],
+				uid=portage_uid, gid=portage_gid)
+	except PermissionDenied as e:
+		writemsg(_("Permission Denied: %s\n") % str(e), noiselevel=-1)
+		return 1
+	except OperationNotPermitted as e:
+		writemsg(_("Operation Not Permitted: %s\n") % str(e), noiselevel=-1)
+		return 1
+	except FileNotFound as e:
+		writemsg(_("File Not Found: '%s'\n") % str(e), noiselevel=-1)
+		return 1
+
+	# Reset state for things like noauto and keepwork in FEATURES.
+	for x in ('.die_hooks',):
+		try:
+			os.unlink(os.path.join(mysettings['PORTAGE_BUILDDIR'], x))
+		except OSError:
+			pass
+
+	_prepare_workdir(mysettings)
+	if mysettings.get('EBUILD_PHASE') != 'fetch':
+		# Avoid spurious permissions adjustments when fetching with
+		# a temporary PORTAGE_TMPDIR setting (for fetchonly).
+		_prepare_features_dirs(mysettings)
+
+def _adjust_perms_msg(settings, msg):
+
+	def write(msg):
+		writemsg(msg, noiselevel=-1)
+
+	background = settings.get("PORTAGE_BACKGROUND") == "1"
+	log_path = settings.get("PORTAGE_LOG_FILE")
+	log_file = None
+
+	if background and log_path is not None:
+		try:
+			log_file = codecs.open(_unicode_encode(log_path,
+				encoding=_encodings['fs'], errors='strict'),
+				mode='a', encoding=_encodings['content'], errors='replace')
+		except IOError:
+			def write(msg):
+				pass
+		else:
+			def write(msg):
+				log_file.write(_unicode_decode(msg))
+				log_file.flush()
+
+	try:
+		write(msg)
+	finally:
+		if log_file is not None:
+			log_file.close()
+
+def _prepare_features_dirs(mysettings):
+
+	features_dirs = {
+		"ccache":{
+			"path_dir": "/usr/lib/ccache/bin",
+			"basedir_var":"CCACHE_DIR",
+			"default_dir":os.path.join(mysettings["PORTAGE_TMPDIR"], "ccache"),
+			"always_recurse":False},
+		"distcc":{
+			"path_dir": "/usr/lib/distcc/bin",
+			"basedir_var":"DISTCC_DIR",
+			"default_dir":os.path.join(mysettings["BUILD_PREFIX"], ".distcc"),
+			"subdirs":("lock", "state"),
+			"always_recurse":True}
+	}
+	dirmode  = 0o2070
+	filemode =   0o60
+	modemask =    0o2
+	restrict = mysettings.get("PORTAGE_RESTRICT","").split()
+	droppriv = secpass >= 2 and \
+		"userpriv" in mysettings.features and \
+		"userpriv" not in restrict
+	for myfeature, kwargs in features_dirs.items():
+		if myfeature in mysettings.features:
+			failure = False
+			basedir = mysettings.get(kwargs["basedir_var"])
+			if basedir is None or not basedir.strip():
+				basedir = kwargs["default_dir"]
+				mysettings[kwargs["basedir_var"]] = basedir
+			try:
+				path_dir = kwargs["path_dir"]
+				if not os.path.isdir(path_dir):
+					raise DirectoryNotFound(path_dir)
+
+				mydirs = [mysettings[kwargs["basedir_var"]]]
+				if "subdirs" in kwargs:
+					for subdir in kwargs["subdirs"]:
+						mydirs.append(os.path.join(basedir, subdir))
+				for mydir in mydirs:
+					modified = ensure_dirs(mydir)
+					# Generally, we only want to apply permissions for
+					# initial creation.  Otherwise, we don't know exactly what
+					# permissions the user wants, so should leave them as-is.
+					droppriv_fix = False
+					if droppriv:
+						st = os.stat(mydir)
+						if st.st_gid != portage_gid or \
+							not dirmode == (stat.S_IMODE(st.st_mode) & dirmode):
+							droppriv_fix = True
+						if not droppriv_fix:
+							# Check permissions of files in the directory.
+							for filename in os.listdir(mydir):
+								try:
+									subdir_st = os.lstat(
+										os.path.join(mydir, filename))
+								except OSError:
+									continue
+								if subdir_st.st_gid != portage_gid or \
+									((stat.S_ISDIR(subdir_st.st_mode) and \
+									not dirmode == (stat.S_IMODE(subdir_st.st_mode) & dirmode))):
+									droppriv_fix = True
+									break
+
+					if droppriv_fix:
+						_adjust_perms_msg(mysettings,
+							colorize("WARN", " * ") + \
+							_("Adjusting permissions "
+							"for FEATURES=userpriv: '%s'\n") % mydir)
+					elif modified:
+						_adjust_perms_msg(mysettings,
+							colorize("WARN", " * ") + \
+							_("Adjusting permissions "
+							"for FEATURES=%s: '%s'\n") % (myfeature, mydir))
+
+					if modified or kwargs["always_recurse"] or droppriv_fix:
+						def onerror(e):
+							raise	# The feature is disabled if a single error
+									# occurs during permissions adjustment.
+						if not apply_recursive_permissions(mydir,
+						gid=portage_gid, dirmode=dirmode, dirmask=modemask,
+						filemode=filemode, filemask=modemask, onerror=onerror):
+							raise OperationNotPermitted(
+								_("Failed to apply recursive permissions for the portage group."))
+
+			except DirectoryNotFound as e:
+				failure = True
+				writemsg(_("\n!!! Directory does not exist: '%s'\n") % \
+					(e,), noiselevel=-1)
+				writemsg(_("!!! Disabled FEATURES='%s'\n") % myfeature,
+					noiselevel=-1)
+
+			except PortageException as e:
+				failure = True
+				writemsg("\n!!! %s\n" % str(e), noiselevel=-1)
+				writemsg(_("!!! Failed resetting perms on %s='%s'\n") % \
+					(kwargs["basedir_var"], basedir), noiselevel=-1)
+				writemsg(_("!!! Disabled FEATURES='%s'\n") % myfeature,
+					noiselevel=-1)
+
+			if failure:
+				mysettings.features.remove(myfeature)
+				mysettings['FEATURES'] = ' '.join(sorted(mysettings.features))
+				time.sleep(5)
+
+def _prepare_workdir(mysettings):
+	workdir_mode = 0o700
+	try:
+		mode = mysettings["PORTAGE_WORKDIR_MODE"]
+		if mode.isdigit():
+			parsed_mode = int(mode, 8)
+		elif mode == "":
+			raise KeyError()
+		else:
+			raise ValueError()
+		if parsed_mode & 0o7777 != parsed_mode:
+			raise ValueError("Invalid file mode: %s" % mode)
+		else:
+			workdir_mode = parsed_mode
+	except KeyError as e:
+		writemsg(_("!!! PORTAGE_WORKDIR_MODE is unset, using %s.\n") % oct(workdir_mode))
+	except ValueError as e:
+		if len(str(e)) > 0:
+			writemsg("%s\n" % e)
+		writemsg(_("!!! Unable to parse PORTAGE_WORKDIR_MODE='%s', using %s.\n") % \
+		(mysettings["PORTAGE_WORKDIR_MODE"], oct(workdir_mode)))
+	mysettings["PORTAGE_WORKDIR_MODE"] = oct(workdir_mode).replace('o', '')
+	try:
+		apply_secpass_permissions(mysettings["WORKDIR"],
+		uid=portage_uid, gid=portage_gid, mode=workdir_mode)
+	except FileNotFound:
+		pass # ebuild.sh will create it
+
+	if mysettings.get("PORT_LOGDIR", "") == "":
+		while "PORT_LOGDIR" in mysettings:
+			del mysettings["PORT_LOGDIR"]
+	if "PORT_LOGDIR" in mysettings:
+		try:
+			modified = ensure_dirs(mysettings["PORT_LOGDIR"])
+			if modified:
+				apply_secpass_permissions(mysettings["PORT_LOGDIR"],
+					uid=portage_uid, gid=portage_gid, mode=0o2770)
+		except PortageException as e:
+			writemsg("!!! %s\n" % str(e), noiselevel=-1)
+			writemsg(_("!!! Permission issues with PORT_LOGDIR='%s'\n") % \
+				mysettings["PORT_LOGDIR"], noiselevel=-1)
+			writemsg(_("!!! Disabling logging.\n"), noiselevel=-1)
+			while "PORT_LOGDIR" in mysettings:
+				del mysettings["PORT_LOGDIR"]
+	if "PORT_LOGDIR" in mysettings and \
+		os.access(mysettings["PORT_LOGDIR"], os.W_OK):
+		logid_path = os.path.join(mysettings["PORTAGE_BUILDDIR"], ".logid")
+		if not os.path.exists(logid_path):
+			open(_unicode_encode(logid_path), 'w')
+		logid_time = _unicode_decode(time.strftime("%Y%m%d-%H%M%S",
+			time.gmtime(os.stat(logid_path).st_mtime)),
+			encoding=_encodings['content'], errors='replace')
+
+		if "split-log" in mysettings.features:
+			mysettings["PORTAGE_LOG_FILE"] = os.path.join(
+				mysettings["PORT_LOGDIR"], "build", "%s/%s:%s.log" % \
+				(mysettings["CATEGORY"], mysettings["PF"], logid_time))
+		else:
+			mysettings["PORTAGE_LOG_FILE"] = os.path.join(
+				mysettings["PORT_LOGDIR"], "%s:%s:%s.log" % \
+				(mysettings["CATEGORY"], mysettings["PF"], logid_time))
+
+		ensure_dirs(os.path.dirname(mysettings["PORTAGE_LOG_FILE"]))
+
+	else:
+		# NOTE: When sesandbox is enabled, the local SELinux security policies
+		# may not allow output to be piped out of the sesandbox domain. The
+		# current policy will allow it to work when a pty is available, but
+		# not through a normal pipe. See bug #162404.
+		mysettings["PORTAGE_LOG_FILE"] = os.path.join(
+			mysettings["T"], "build.log")


Property changes on: main/trunk/pym/portage/package/ebuild/prepare_build_dirs.py
___________________________________________________________________
Added: svn:keywords
   + Id

Modified: main/trunk/pym/portage/tests/ebuild/test_pty_eof.py
===================================================================
--- main/trunk/pym/portage/tests/ebuild/test_pty_eof.py	2010-02-24 21:27:43 UTC (rev 15447)
+++ main/trunk/pym/portage/tests/ebuild/test_pty_eof.py	2010-02-25 03:37:29 UTC (rev 15448)
@@ -4,6 +4,7 @@
 
 import portage
 from portage.tests import TestCase
+from portage.package.ebuild._pty import _can_test_pty_eof, _test_pty_eof
 
 class PtyEofTestCase(TestCase):
 
@@ -13,8 +14,8 @@
 		# Since it might not be fixed, mark as todo.
 		self.todo = True
 		# The result is only valid if openpty does not raise EnvironmentError.
-		if portage._can_test_pty_eof():
+		if _can_test_pty_eof():
 			try:
-				self.assertEqual(portage._test_pty_eof(), True)
+				self.assertEqual(_test_pty_eof(), True)
 			except EnvironmentError:
 				pass