From 7e8f827222d3cc7a8614d49ec4590b4a620e7cd8 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 22 Feb 2008 22:20:50 +0000
Subject: Add support for file paths as arguments to emerge. If an argument
 starts with / and it's not recognized as a tbz2 or ebuild then we try to find
 and owner in the vdb and generate a slot atom from it. Thanks to solar for
 the suggestion.

svn path=/main/trunk/; revision=9367
---
 pym/_emerge/__init__.py | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index a1728cb58..78da2f329 100644
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -1429,6 +1429,7 @@ class depgraph(object):
 		self._reinstall_nodes = {}
 		self.mydbapi = {}
 		self.trees = {}
+		self._trees_orig = trees
 		self.roots = {}
 		# Contains a filtered view of preferred packages that are selected
 		# from available repositories.
@@ -2123,6 +2124,35 @@ class depgraph(object):
 					cpv=mykey, metadata=metadata, onlydeps=onlydeps)
 				args.append(PackageArg(arg=x, package=pkg,
 					root_config=root_config))
+			elif x.startswith(os.path.sep):
+				if not x.startswith(myroot):
+					portage.writemsg(("\n\n!!! '%s' does not start with" + \
+						" $ROOT.\n") % x, noiselevel=-1)
+					return 0, []
+				relative_path = x[len(myroot):]
+				vartree = self._trees_orig[myroot]["vartree"]
+				owner_cpv = None
+				for cpv in vardb.cpv_all():
+					self.spinner.update()
+					cat, pf = portage.catsplit(cpv)
+					if portage.dblink(cat, pf, myroot,
+						pkgsettings, vartree=vartree).isowner(
+						relative_path, myroot):
+						owner_cpv = cpv
+						break
+				if owner_cpv is None:
+					portage.writemsg(("\n\n!!! '%s' is not claimed " + \
+						"by any package.\n") % x, noiselevel=-1)
+					return 0, []
+				slot = vardb.aux_get(owner_cpv, ["SLOT"])[0]
+				if not slot:
+					# portage now masks packages with missing slot, but it's
+					# possible that one was installed by an older version
+					atom = portage.cpv_getkey(owner_cpv)
+				else:
+					atom = "%s:%s" % (portage.cpv_getkey(owner_cpv), slot)
+				args.append(AtomArg(arg=atom, atom=atom,
+					root_config=root_config))
 			else:
 				if x in ("system", "world"):
 					x = SETPREFIX + x
-- 
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