From 02bc22df9ab2f5b40547d3aa4362247deeb98d80 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 5 Oct 2006 05:24:42 +0000
Subject: [PATCH] Add support for slot based dep matching in all dbapi derived
 classes.  The supported syntax is ${CATEGORY}/${PN}:${SLOT} (identical to
 that used by paludis and pkgcore).

svn path=/main/trunk/; revision=4594
---
 pym/portage.py     | 28 +++++++++++++++++++++++++---
 pym/portage_dep.py | 21 ++++++++++++++++++++-
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/pym/portage.py b/pym/portage.py
index 7aa0e558b..403caa7ef 100644
--- a/pym/portage.py
+++ b/pym/portage.py
@@ -3517,6 +3517,10 @@ def dep_expand(mydep, mydb=None, use_cache=1, settings=None):
 	elif mydep[:1] in "=<>~!":
 		prefix=mydep[:1]
 		mydep=mydep[1:]
+	colon = mydep.rfind(":")
+	if colon != -1:
+		postfix = mydep[colon:]
+		mydep = mydep[:colon]
 	return prefix + cpv_expand(
 		mydep, mydb=mydb, use_cache=use_cache, settings=settings) + postfix
 
@@ -3981,8 +3985,12 @@ class dbapi:
 	def match(self,origdep,use_cache=1):
 		mydep = dep_expand(origdep, mydb=self, settings=self.settings)
 		mykey=dep_getkey(mydep)
-		mycat=mykey.split("/")[0]
-		return match_from_list(mydep,self.cp_list(mykey,use_cache=use_cache))
+		mylist = match_from_list(mydep,self.cp_list(mykey,use_cache=use_cache))
+		myslot = portage_dep.dep_getslot(mydep)
+		if myslot is not None:
+			mylist = [cpv for cpv in mylist \
+				if self.aux_get(cpv, ["SLOT"])[0] == myslot]
+		return mylist
 
 	def match2(self,mydep,mykey,mylist):
 		writemsg("DEPRECATED: dbapi.match2\n")
@@ -4379,7 +4387,13 @@ class vardbapi(dbapi):
 			if self.matchcache.has_key(mycat):
 				del self.mtdircache[mycat]
 				del self.matchcache[mycat]
-			return match_from_list(mydep,self.cp_list(mykey,use_cache=use_cache))
+			mymatch = match_from_list(mydep,
+				self.cp_list(mykey, use_cache=use_cache))
+			myslot = portage_dep.dep_getslot(mydep)
+			if myslot is not None:
+				mymatch = [cpv for cpv in mymatch \
+					if self.aux_get(cpv, ["SLOT"])[0] == myslot]
+			return mymatch
 		try:
 			curmtime=os.stat(self.root+VDB_PATH+"/"+mycat)[stat.ST_MTIME]
 		except SystemExit, e:
@@ -4393,6 +4407,10 @@ class vardbapi(dbapi):
 			self.matchcache[mycat]={}
 		if not self.matchcache[mycat].has_key(mydep):
 			mymatch=match_from_list(mydep,self.cp_list(mykey,use_cache=use_cache))
+			myslot = portage_dep.dep_getslot(mydep)
+			if myslot is not None:
+				mymatch = [cpv for cpv in mymatch \
+					if self.aux_get(cpv, ["SLOT"])[0] == myslot]
 			self.matchcache[mycat][mydep]=mymatch
 		return self.matchcache[mycat][mydep][:]
 
@@ -5200,6 +5218,10 @@ class portdbapi(dbapi):
 		else:
 			print "ERROR: xmatch doesn't handle",level,"query!"
 			raise KeyError
+		myslot = portage_dep.dep_getslot(mydep)
+		if myslot is not None:
+			myval = [cpv for cpv in myval \
+				if self.aux_get(cpv, ["SLOT"])[0] == myslot]
 		if self.frozen and (level not in ["match-list","bestmatch-list"]):
 			self.xcache[level][mydep]=myval
 		return myval
diff --git a/pym/portage_dep.py b/pym/portage_dep.py
index 1f20b8ac3..af4a72501 100644
--- a/pym/portage_dep.py
+++ b/pym/portage_dep.py
@@ -195,8 +195,17 @@ def dep_getcpv(mydep):
 		mydep = mydep[2:]
 	elif mydep[:1] in "=<>~":
 		mydep = mydep[1:]
+	colon = mydep.rfind(":")
+	if colon != -1:
+		return mydep[:colon]
 	return mydep
 
+def dep_getslot(mydep):
+	colon = mydep.rfind(":")
+	if colon != -1:
+		return mydep[colon+1:]
+	return None
+
 def isvalidatom(atom):
 	mycpv_cps = catpkgsplit(dep_getcpv(atom))
 	operator = get_operator(atom)
@@ -283,11 +292,13 @@ def match_from_list(mydep, candidate_list):
 
 	mycpv     = dep_getcpv(mydep)
 	mycpv_cps = catpkgsplit(mycpv) # Can be None if not specific
+	slot      = None
 
 	if not mycpv_cps:
 		cat, pkg = catsplit(mycpv)
 		ver      = None
 		rev      = None
+		slot = dep_getslot(mydep)
 	else:
 		cat, pkg, ver, rev = mycpv_cps
 		if mydep == mycpv:
@@ -308,7 +319,15 @@ def match_from_list(mydep, candidate_list):
 		for x in candidate_list:
 			xs = pkgsplit(x)
 			if xs is None:
-				if x != mycpv:
+				xcpv = dep_getcpv(x)
+				if slot is not None:
+					xslot = dep_getslot(x)
+					if xslot is not None and xslot != slot:
+						"""  This function isn't given enough information to
+						reject atoms based on slot unless *both* compared atoms
+						specify slots."""
+						continue
+				if xcpv != mycpv:
 					continue
 			elif xs[0] != mycpv:
 				continue
-- 
2.26.2