From 1732c6978e3576fb9d690f45f428ead3eeea0740 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 20 Dec 2007 05:16:44 +0000
Subject: Make some adjustments so that it's possible to install binary
 packages without having a portage tree:

* Make portdbapi.aux_get() return early by raising a KeyError
  if it detects that there is no portage tree.

* Move the ARCH and USERLAND sanity check to the last moment
  in doebuild() and only require these variables if an
  existing environment (such as environment.bz2) is
  unavailable.

* Make the NewsManager constructor cope with a broken
  make.profile symlink.


svn path=/main/trunk/; revision=8973
---
 pym/_emerge/__init__.py       | 13 +------------
 pym/portage/__init__.py       | 16 ++++++++++++++++
 pym/portage/dbapi/porttree.py |  9 +++++++++
 pym/portage/news.py           | 10 ++++++----
 4 files changed, 32 insertions(+), 16 deletions(-)

diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index 85b0566b6..36c3234a9 100644
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -6671,18 +6671,7 @@ def parse_opts(tmpcmdline, silent=False):
 	return myaction, myopts, myfiles
 
 def validate_ebuild_environment(trees):
-	for myroot in trees:
-		mysettings = trees[myroot]["vartree"].settings
-		for var in "ARCH", "USERLAND":
-			if mysettings.get(var):
-				continue
-			print >> sys.stderr, bad(("\a!!! %s is not set... " % var) + \
-				"Are you missing the '%setc/make.profile' symlink?" % \
-				mysettings["PORTAGE_CONFIGROOT"])
-			print >> sys.stderr, bad("\a!!! Is the symlink correct? " + \
-				"Is your portage tree complete?\n")
-			sys.exit(9)
-		del myroot, mysettings
+	pass
 
 def load_emerge_config(trees=None):
 	kwargs = {}
diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py
index 1c9956336..3bcba4d6f 100644
--- a/pym/portage/__init__.py
+++ b/pym/portage/__init__.py
@@ -4512,6 +4512,22 @@ def doebuild(myebuild, mydo, myroot, mysettings, debug=0, listonly=0,
 					env_stat = None
 			if env_stat:
 				mysettings._filter_calling_env = True
+			else:
+				for var in "ARCH", "USERLAND":
+					if mysettings.get(var):
+						continue
+					msg = ("%s is not set... " % var) + \
+						("Are you missing the '%setc/make.profile' symlink? " % \
+						mysettings["PORTAGE_CONFIGROOT"]) + \
+						"Is the symlink correct? " + \
+						"Is your portage tree complete?"
+					from portage.elog.messages import eerror
+					from textwrap import wrap
+					for line in wrap(msg, 70):
+						eerror(line, phase=mydo, key=mysettings.mycpv)
+					from portage.elog import elog_process
+					elog_process(mysettings.mycpv, mysettings)
+					return 1
 			del env_file, env_stat, saved_env
 			_doebuild_exit_status_unlink(
 				mysettings.get("EBUILD_EXIT_STATUS_FILE"))
diff --git a/pym/portage/dbapi/porttree.py b/pym/portage/dbapi/porttree.py
index 0ed55fba8..be2015628 100644
--- a/pym/portage/dbapi/porttree.py
+++ b/pym/portage/dbapi/porttree.py
@@ -68,6 +68,13 @@ class portdbapi(dbapi):
 		self.eclassdb = eclass_cache.cache(self.porttree_root,
 			overlays=self.mysettings["PORTDIR_OVERLAY"].split())
 
+		# This is used as sanity check for aux_get(). If there is no
+		# root eclass dir, we assume that PORTDIR is invalid or
+		# missing. This check allows aux_get() to detect a missing
+		# portage tree and return early by raising a KeyError.
+		self._have_root_eclass_dir = os.path.isdir(
+			os.path.join(self.porttree_root, "eclasses"))
+
 		self.metadbmodule = self.mysettings.load_best_module("portdbapi.metadbmodule")
 
 		#if the portdbapi is "frozen", then we assume that we can cache everything (that no updates to it are happening)
@@ -303,6 +310,8 @@ class portdbapi(dbapi):
 		if doregen:
 			if myebuild in self._broken_ebuilds:
 				raise KeyError(mycpv)
+			if not self._have_root_eclass_dir:
+				raise KeyError(mycpv)
 			writemsg("doregen: %s %s\n" % (doregen, mycpv), 2)
 			writemsg("Generating cache entry(0) for: "+str(myebuild)+"\n", 1)
 
diff --git a/pym/portage/news.py b/pym/portage/news.py
index 540372e10..da7e159af 100644
--- a/pym/portage/news.py
+++ b/pym/portage/news.py
@@ -36,10 +36,12 @@ class NewsManager(object):
 
 		portdir = portdb.porttree_root
 		profiles_base = os.path.join(portdir, 'profiles') + os.path.sep
-		profile_path = normalize_path(
-			os.path.realpath(portdb.mysettings.profile_path))
-		if profile_path.startswith(profiles_base):
-			profile_path = profile_path[len(profiles_base):]
+		profile_path = None
+		if portdb.mysettings.profile_path:
+			profile_path = normalize_path(
+				os.path.realpath(portdb.mysettings.profile_path))
+			if profile_path.startswith(profiles_base):
+				profile_path = profile_path[len(profiles_base):]
 		self._profile_path = profile_path
 
 		# Ensure that the unread path exists and is writable.
-- 
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