From d26cfcec8ecf33f86b2d1952bdf897be125b1666 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 27 Sep 2007 06:52:05 +0000
Subject: Display a short notification when an existing ${T}/environment
 sourced since it is easy to ignore and ignorance of it often leads to
 mysterious problems and general confusion. This message should not show in
 cases where it is obviously irrelevant, FEATURES=noauto, or PORTAGE_QUIET=1.
 (trunk r7844)

svn path=/main/branches/2.1.2/; revision=7845
---
 bin/ebuild | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/bin/ebuild b/bin/ebuild
index 8afba3afe..5761a0d19 100755
--- a/bin/ebuild
+++ b/bin/ebuild
@@ -139,6 +139,25 @@ if "test" in pargs and "test" not in tmpsettings.features:
 	tmpsettings["FEATURES"] = " ".join(tmpsettings.features)
 	tmpsettings.backup_changes("FEATURES")
 
+build_dir_phases = set(["setup", "unpack", "compile",
+	"test", "install", "package", "rpm"])
+
+if "clean" not in pargs and \
+	"noauto" not in tmpsettings.features and \
+	tmpsettings.get("PORTAGE_QUIET") != "1" and \
+	build_dir_phases.intersection(pargs):
+	portage.doebuild_environment(ebuild, "setup", portage.root,
+		tmpsettings, debug, 1, portage.portdb)
+	env_filename = os.path.join(tmpsettings["T"], "environment")
+	if os.path.exists(env_filename):
+		msg = ("Existing ${T}/environment for '%s' will be sourced. " + \
+			"Run 'clean' to start with a fresh environment.") % \
+			(tmpsettings["PF"], )
+		from textwrap import wrap
+		msg = wrap(msg, 70)
+		for x in msg:
+			portage.writemsg(">>> %s\n" % x)
+
 for arg in pargs:
 	try:
 		if arg == "digest" and force:
-- 
cgit v1.2.3-1-g7c22