From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 18 Nov 2011 21:11:05 +0000 (-0800)
Subject: _prepare_self_update: detect if already called
X-Git-Tag: v2.2.0_alpha76
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=c170578a89c2354a595f34b68ab55622dd942252;p=portage.git

_prepare_self_update: detect if already called

This is should never be triggered by portage, but it's possible that
an API consumer might trigger it somehow.
---

diff --git a/pym/portage/package/ebuild/doebuild.py b/pym/portage/package/ebuild/doebuild.py
index 9e71cfc68..4ba523cc4 100644
--- a/pym/portage/package/ebuild/doebuild.py
+++ b/pym/portage/package/ebuild/doebuild.py
@@ -2024,6 +2024,10 @@ def _prepare_self_update(settings):
 	automatically clean up the temporary copies.
 	"""
 
+	# sanity check: ensure that that this routine only runs once
+	if portage._bin_path != portage.const.PORTAGE_BIN_PATH:
+		return
+
 	# Load lazily referenced portage submodules into memory,
 	# so imports won't fail during portage upgrade/downgrade.
 	_preload_elog_modules(settings)