initial import

This is the portage-prefix-2.2.14 release set up like:
./configure \
	--prefix=/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr \
	--with-portage-user=vapier \
	--with-portage-group=eng \
	--with-offset-prefix=/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir

It does not work as-is; follow up commits will make it more usable.

BUG=b:20895978

Change-Id: I03d3de254bf9f7c3204bd6ac7254c15476b08ba7

1 files changed, 66 insertions, 0 deletions

diff --git a/usr/lib/portage/pym/_emerge/BinpkgEnvExtractor.py b/usr/lib/portage/pym/_emerge/BinpkgEnvExtractor.py
new file mode 100644
index 0000000..5ba1495
--- /dev/null
+++ b/usr/lib/portage/pym/_emerge/BinpkgEnvExtractor.py
@@ -0,0 +1,66 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+import errno
+
+from _emerge.CompositeTask import CompositeTask
+from _emerge.SpawnProcess import SpawnProcess
+from portage import os, _shell_quote, _unicode_encode
+from portage.const import BASH_BINARY
+
+class BinpkgEnvExtractor(CompositeTask):
+	"""
+	Extract environment.bz2 for a binary or installed package.
+	"""
+	__slots__ = ('settings',)
+
+	def saved_env_exists(self):
+		return os.path.exists(self._get_saved_env_path())
+
+	def dest_env_exists(self):
+		return os.path.exists(self._get_dest_env_path())
+
+	def _get_saved_env_path(self):
+		return os.path.join(os.path.dirname(self.settings['EBUILD']),
+			"environment.bz2")
+
+	def _get_dest_env_path(self):
+		return os.path.join(self.settings["T"], "environment")
+
+	def _start(self):
+		saved_env_path = self._get_saved_env_path()
+		dest_env_path = self._get_dest_env_path()
+		shell_cmd = "${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -c -- %s > %s" % \
+			(_shell_quote(saved_env_path),
+			_shell_quote(dest_env_path))
+		extractor_proc = SpawnProcess(
+			args=[BASH_BINARY, "-c", shell_cmd],
+			background=self.background,
+			env=self.settings.environ(), 
+			scheduler=self.scheduler,
+			logfile=self.settings.get('PORTAGE_LOG_FILE'))
+
+		self._start_task(extractor_proc, self._extractor_exit)
+
+	def _remove_dest_env(self):
+		try:
+			os.unlink(self._get_dest_env_path())
+		except OSError as e:
+			if e.errno != errno.ENOENT:
+				raise
+
+	def _extractor_exit(self, extractor_proc):
+
+		if self._default_exit(extractor_proc) != os.EX_OK:
+			self._remove_dest_env()
+			self.wait()
+			return
+
+		# 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(self._get_dest_env_path() + '.raw'), 'wb').close()
+
+		self._current_task = None
+		self.returncode = os.EX_OK
+		self.wait()