From dcc31fb3482a4ae24b0ce58238e4444d01a6ad16 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 4 Jun 2010 14:40:11 -0700
Subject: Split out a _pkgindex_cpv_map_latest_build() function.

---
 pym/portage/dbapi/bintree.py | 62 +++++++++++++++++++++++++-------------------
 1 file changed, 36 insertions(+), 26 deletions(-)

(limited to 'pym')

diff --git a/pym/portage/dbapi/bintree.py b/pym/portage/dbapi/bintree.py
index 680a6395a..080f9e5ff 100644
--- a/pym/portage/dbapi/bintree.py
+++ b/pym/portage/dbapi/bintree.py
@@ -159,6 +159,41 @@ class bindbapi(fakedbapi):
 			self.bintree.populate()
 		return fakedbapi.cpv_all(self)
 
+def _pkgindex_cpv_map_latest_build(pkgindex):
+	"""
+	Given a PackageIndex instance, create a dict of cpv -> metadata map.
+	If multiple packages have identical CPV values, prefer the package
+	with latest BUILD_TIME value.
+	@param pkgindex: A PackageIndex instance.
+	@type pkgindex: PackageIndex
+	@rtype: dict
+	@returns: a dict containing entry for the give cpv.
+	"""
+	cpv_map = {}
+
+	for d in pkgindex.packages:
+		cpv = d["CPV"]
+
+		btime = d.get('BUILD_TIME', '')
+		try:
+			btime = int(btime)
+		except ValueError:
+			btime = None
+
+		other_d = cpv_map.get(cpv)
+		if other_d is not None:
+			other_btime = other_d.get('BUILD_TIME', '')
+			try:
+				other_btime = int(other_btime)
+			except ValueError:
+				other_btime = None
+			if other_btime and (not btime or other_btime > btime):
+				continue
+
+		cpv_map[cpv] = d
+
+	return cpv_map
+
 class binarytree(object):
 	"this tree scans for a list of all packages available in PKGDIR"
 	def __init__(self, root, pkgdir, virtual=None, settings=None):
@@ -777,33 +812,8 @@ class binarytree(object):
 					# The current user doesn't have permission to cache the
 					# file, but that's alright.
 			if pkgindex:
-				self._remotepkgs = {}
-
 				# Organize remote package list as a cpv -> metadata map.
-				# If multiple packages have identical CPV values, prefer
-				# the package with latest BUILD_TIME value.
-				remotepkgs = self._remotepkgs
-				for d in pkgindex.packages:
-					cpv = d["CPV"]
-
-					btime = d.get('BUILD_TIME', '')
-					try:
-						btime = int(btime)
-					except ValueError:
-						btime = None
-
-					other_d = remotepkgs.get(cpv)
-					if other_d is not None:
-						other_btime = other_d.get('BUILD_TIME', '')
-						try:
-							other_btime = int(other_btime)
-						except ValueError:
-							other_btime = None
-						if other_btime and (not btime or other_btime > btime):
-							continue
-
-					remotepkgs[cpv] = d
-
+				self._remotepkgs = _pkgindex_cpv_map_latest_build(pkgindex)
 				self._remote_has_index = True
 				self._remote_base_uri = pkgindex.header.get("URI", base_url)
 				self.__remotepkgs = {}
-- 
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