From c10d60d57fc5c3f0eff217f216ce4f0a0897cb55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20=27Necoro=27=20Neumann?= <necoro@necoro.net>
Date: Thu, 26 Jun 2008 22:37:56 +0200
Subject: Removed '__find_resolved_unresolved' as it is quite useless. Also
 removed the "find_packages::ws" and moved the content into "world" and
 "system" to prepare for exchangebility.

---
 portato/backend/portage/system.py   | 78 +++++++++++++------------------------
 portato/backend/system_interface.py |  2 +-
 portato/helper.py                   |  2 +-
 3 files changed, 29 insertions(+), 53 deletions(-)

diff --git a/portato/backend/portage/system.py b/portato/backend/portage/system.py
index 58f687e..229bcc9 100644
--- a/portato/backend/portage/system.py
+++ b/portato/backend/portage/system.py
@@ -14,6 +14,11 @@ from __future__ import absolute_import, with_statement
 
 import re, os, os.path
 import portage
+try:
+	import portage.dep as portage_dep
+except ImportError:
+	import portage_dep
+
 from collections import defaultdict
 
 from . import VERSION
@@ -226,24 +231,30 @@ class PortageSystem (SystemInterface):
 			inst = set(installed(key))
 			return list(alist - inst)
 
-		def _ws (key, crit, pkglist):
-			pkgs = self.__find_resolved_unresolved(pkglist, crit, only_cpv = with_version)[0]
-			if not with_version:
-				pkgs = [x.get_cp(x) for x in list]
-
-			if is_regexp:
-				return filter(lambda x: re.match(key, x, re.I), pkgs)
-			
-			return pkgs
-
 		def world (key):
 			with open(portage.WORLD_FILE) as f:
-				pkglist = f.readlines()
+				for cp in f:
+					cp = cp.strip()
+					if cp and cp[0] != "#":
+						if is_regexp:
+							if not re.match(key, cp, re.I): continue
 
-			return _ws(key, lambda cpv: cpv[0] != "#", pkglist)
+						if not with_version:
+							yield portage_dep.dep_getkey(cp)
+						
+						yield self.find_best_match(cp, only_cpv = True)
 
 		def system (key):
-			return _ws(key, lambda cpv: cpv[0] == "*", self.settings.settings.packages)
+			for cp in self.settings.settings.packages:
+				if cp[0] != "*": continue
+				
+				if is_regexp:
+					if not re.match(key, cp, re.I): continue
+
+				if not with_version:
+					yield portage_dep.dep_getkey(cp)
+
+				yield self.find_best_match(cp, only_cpv = True)
 
 		funcmap = {
 				"all" : all,
@@ -272,34 +283,9 @@ class PortageSystem (SystemInterface):
 
 		# Make the list of packages unique
 		t = unique_array(t)
-		t.sort()
 
 		return self.geneticize_list(t, only_cpv or not with_version)
 
-	def __find_resolved_unresolved (self, list, check, only_cpv = False):
-		"""Checks a given list and divides it into a "resolved" and an "unresolved" part.
-
-		@param list: list of cpv's
-		@type list: string[]
-		@param check: function called to check whether an entry is ok
-		@type check: function(cpv)
-		@param only_cpv: do not return packages but cpv-strings
-		@type only_cpv: boolean
-
-		@returns: the divided list: (resolved, unresolved)
-		@rtype: (Package[], Package[]) or (string[], string[])"""
-		resolved = []
-		unresolved = []
-		for x in list:
-			cpv = x.strip()
-			if cpv and check(cpv):
-				pkg = self.find_best_match(cpv, only_cpv = only_cpv)
-				if pkg:
-					resolved.append(pkg)
-				else:
-					unresolved.append(self.find_best_match(cpv, True, only_cpv = only_cpv))
-		return (resolved, unresolved)
-
 	def list_categories (self, name = None):
 		categories = self.settings.settings.categories
 		return filter(self.find_lambda(name), categories)
@@ -357,19 +343,9 @@ class PortageSystem (SystemInterface):
 		return packages
 
 	def update_world (self, newuse = False, deep = False):
-		# read world file
-		world = open(portage.WORLD_FILE)
-		packages = []
-		for line in world:
-			line = line.strip()
-			if len(line) == 0: continue # empty line
-			if line[0] == "#": continue # comment
-			packages.append(line)
-		world.close()
-
-		# append system packages
-		packages.extend(unique_array([p.get_cp() for p in self.find_packages(pkgSet = "system")]))
-		
+		packages = self.find_packages(pkgSet="world", with_version = False)
+		packages.extend(self.find_packages(pkgSet = "system", with_version = False))
+
 		states = [(["RDEPEND", "PDEPEND"], True)]
 		if self.with_bdeps():
 			states.append((["DEPEND"], True))
diff --git a/portato/backend/system_interface.py b/portato/backend/system_interface.py
index 16f0a9c..c118f6d 100644
--- a/portato/backend/system_interface.py
+++ b/portato/backend/system_interface.py
@@ -23,7 +23,7 @@ class SystemInterface (object):
 		"""Returns all supported sets in tuples consisting of name and description.
 		If sets aren't supported, at least "world" and "system" have to be returned.
 
-		@rtype: (string, string)[]
+		@rtype: iter(string, string)
 		"""
 		raise NotImplementedError
 
diff --git a/portato/helper.py b/portato/helper.py
index 31e25d9..145716e 100644
--- a/portato/helper.py
+++ b/portato/helper.py
@@ -110,7 +110,6 @@ def unique_array(s):
 	"""Stolen from portage_utils:
 	lifted from python cookbook, credit: Tim Peters
 	Return a list of the elements in s in arbitrary order, sans duplicates"""
-	n = len(s)
 	# assume all elements are hashable, if so, it's linear
 	try:
 		return list(set(s))
@@ -124,6 +123,7 @@ def unique_array(s):
 	except TypeError:
 		pass
 	else:
+		n = len(s)
 		assert n > 0
 		last = t[0]
 		lasti = i = 1
-- 
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