From e9dc2b6753aa29eb776f15532fdda18f10af5d44 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Tue, 15 Jan 2013 12:36:02 -0800
Subject: EbuildMetadataPhase: use dynamic pipe fd

Also, remove deprecated code from doebuild (with hardcoded pipe fd).
---
 bin/ebuild.sh                          |  4 ++--
 pym/_emerge/EbuildMetadataPhase.py     |  5 ++--
 pym/portage/package/ebuild/doebuild.py | 44 ++++++----------------------------
 3 files changed, 12 insertions(+), 41 deletions(-)

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index a4be7c067..2293938bc 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -696,9 +696,9 @@ if [[ $EBUILD_PHASE = depend ]] ; then
 		done
 	else
 		for f in ${auxdbkeys} ; do
-			echo $(echo ${!f}) 1>&9 || exit $?
+			eval "echo \$(echo \${!f}) 1>&${PORTAGE_PIPE_FD}" || exit $?
 		done
-		exec 9>&-
+		eval "exec ${PORTAGE_PIPE_FD}>&-"
 	fi
 	set +f
 else
diff --git a/pym/_emerge/EbuildMetadataPhase.py b/pym/_emerge/EbuildMetadataPhase.py
index 4806f5c2d..4c7d772d4 100644
--- a/pym/_emerge/EbuildMetadataPhase.py
+++ b/pym/_emerge/EbuildMetadataPhase.py
@@ -32,7 +32,6 @@ class EbuildMetadataPhase(SubProcess):
 
 	_file_names = ("ebuild",)
 	_files_dict = slot_dict_class(_file_names, prefix="")
-	_metadata_fd = 9
 
 	def _start(self):
 		ebuild_path = self.ebuild_hash.location
@@ -103,7 +102,8 @@ class EbuildMetadataPhase(SubProcess):
 		fcntl.fcntl(master_fd, fcntl.F_SETFL,
 			fcntl.fcntl(master_fd, fcntl.F_GETFL) | fcntl_flags)
 
-		fd_pipes[self._metadata_fd] = slave_fd
+		fd_pipes[slave_fd] = slave_fd
+		settings["PORTAGE_PIPE_FD"] = str(slave_fd)
 
 		self._raw_metadata = []
 		files.ebuild = master_fd
@@ -115,6 +115,7 @@ class EbuildMetadataPhase(SubProcess):
 			settings=settings, debug=debug,
 			mydbapi=self.portdb, tree="porttree",
 			fd_pipes=fd_pipes, returnpid=True)
+		settings.pop("PORTAGE_PIPE_FD", None)
 
 		os.close(slave_fd)
 		null_input.close()
diff --git a/pym/portage/package/ebuild/doebuild.py b/pym/portage/package/ebuild/doebuild.py
index e4d3ae451..a214c39a8 100644
--- a/pym/portage/package/ebuild/doebuild.py
+++ b/pym/portage/package/ebuild/doebuild.py
@@ -455,7 +455,7 @@ _doebuild_commands_without_builddir = (
 )
 
 def doebuild(myebuild, mydo, _unused=None, settings=None, debug=0, listonly=0,
-	fetchonly=0, cleanup=0, dbkey=None, use_cache=1, fetchall=0, tree=None,
+	fetchonly=0, cleanup=0, dbkey=DeprecationWarning, use_cache=1, fetchall=0, tree=None,
 	mydbapi=None, vartree=None, prev_mtimes=None,
 	fd_pipes=None, returnpid=False):
 	"""
@@ -524,6 +524,11 @@ def doebuild(myebuild, mydo, _unused=None, settings=None, debug=0, listonly=0,
 			"settings['ROOT'] instead.",
 			DeprecationWarning, stacklevel=2)
 
+	if dbkey is not DeprecationWarning:
+		warnings.warn("portage.doebuild() called "
+			"with deprecated dbkey argument.",
+			DeprecationWarning, stacklevel=2)
+
 	if not tree:
 		writemsg("Warning: tree not specified to doebuild\n")
 		tree = "porttree"
@@ -720,42 +725,7 @@ def doebuild(myebuild, mydo, _unused=None, settings=None, debug=0, listonly=0,
 			if returnpid:
 				return _spawn_phase(mydo, mysettings,
 					fd_pipes=fd_pipes, returnpid=returnpid)
-			elif isinstance(dbkey, dict):
-				warnings.warn("portage.doebuild() called " + \
-					"with dict dbkey argument. This usage will " + \
-					"not be supported in the future.",
-					DeprecationWarning, stacklevel=2)
-				mysettings["dbkey"] = ""
-				pr, pw = os.pipe()
-				fd_pipes = {
-					0:portage._get_stdin().fileno(),
-					1:sys.__stdout__.fileno(),
-					2:sys.__stderr__.fileno(),
-					9:pw}
-				mypids = _spawn_phase(mydo, mysettings, returnpid=True,
-					fd_pipes=fd_pipes)
-				os.close(pw) # belongs exclusively to the child process now
-				f = os.fdopen(pr, 'rb', 0)
-				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:
+			elif dbkey and dbkey is not DeprecationWarning:
 				mysettings["dbkey"] = dbkey
 			else:
 				mysettings["dbkey"] = \
-- 
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