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Disclaimer: This is nowhere near done, mostly looking to start a
conversation with people about stuff it's missing, and ways to improve,
mostly it was a proof of concept. However please try it out and play
with it a bit, find issues, etc..
included is a patch against 2.1_pre3-r1.
Also included is the ebuild I used to test fun things with. The ebuild
doesn't pass QA, I know :P
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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
DESCRIPTION=This is a sample skeleton ebuild file
# Homepage, not used by Portage directly but handy for developer reference
HOMEPAGE=http://foo.bar.com/;
# Point to any required sources; these will be automatically downloaded by
# Portage.
SRC_URI=
# License of the package. This must match the name of file(s) in
# /usr/portage/licenses/. For complex license combination see the developer
# docs on gentoo.org for details.
LICENSE=
SLOT=0
KEYWORDS=x86
IUSE=+python -debug +doc +bar foo -nocxx
DEPEND=python? dev-python/twisted
doc? sys-apps/portage
RDEPEND=
--- emerge.orig 2006-01-02 14:43:57.624036128 -0500
+++ emerge 2006-01-02 15:57:50.190183648 -0500
@@ -964,8 +964,26 @@
if myuse == None:
self.pkgsettings.setcpv(mykey)
myuse = self.pkgsettings[USE].split()
- self.applied_useflags[mykey] = myuse
+ self.applied_useflags[mykey] = myuse
+ # Add the code here.
+ if mytype == binary:
+ iuses = portage.db[/][bintree].dbapi.aux_get(mykey,
[IUSE])[0].split()
+ else:
+ iuses =
portage.db[/][porttree].dbapi.aux_get(mykey, [IUSE])[0].split()
+
+ conf_use = self.pkgsettings.configdict[conf][USE]
+
+ for flag in iuses:
+ if flag.startswith(+):
+ if '-' + flag[1:] not in conf_use:
+ if flag[1:] not in
self.applied_useflags[mykey]:
+
self.applied_useflags[mykey].append(flag[1:])
+ elif flag.startswith(-):
+ if flag[1:] not in conf_use:
+ if flag[1:] in
self.applied_useflags[mykey]:
+
self.applied_useflags[mykey].remove(flag[1:])
+
merging=1
if addme:
# this is where we add the node to the list of packages to merge
@@ -1625,10 +1643,18 @@
cur_iuse =
portage.unique_array(cur_iuse)
cur_iuse = [flag for flag in cur_iuse
if flag not in portage.settings.usemask]
+ result = []
+ # Strip the +- default USE flag in IUSE
stuff out of IUSE
+ for flag in cur_iuse:
+ if flag.startswith(+) or
flag.startswith(-):
+ result.append(flag[1:])
+ else:
+ result.append(flag)
+ cur_iuse = result
cur_iuse.sort()
+
cur_use = self.applied_useflags[x[2]]
cur_use = [flag for flag in cur_use if
flag in cur_iuse]
-
if myoldbest:
pkg = myoldbest
else:
@@ -1636,6 +1662,14 @@
if
portage.db[/][vartree].dbapi.cpv_exists(pkg):
