From 3914c583172c82ca50668acce58edf278fbef56d Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 6 Mar 2008 00:23:32 +0000
Subject: [PATCH] Move the variable name validation regexes (for bug 211949)
 into filter-bash-environment.py instead of passing them in from bash.

svn path=/main/trunk/; revision=9445
---
 bin/ebuild.sh                  |  9 +++------
 bin/filter-bash-environment.py | 10 ++++++++--
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index 061e1961c..542fca9e2 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -1424,12 +1424,7 @@ filter_readonly_variables() {
 		SANDBOX_DEBUG_LOG SANDBOX_DISABLED SANDBOX_LIB
 		SANDBOX_LOG SANDBOX_ON"
 	filtered_vars="${readonly_bash_vars} ${READONLY_PORTAGE_VARS}
-		BASH_[_[:alnum:]]* PATH
-		[[:digit:]][_[:alnum:]]*
-		.*[^_[:alnum:]].*"
-	# TODO: Take the above variable name validation and the below sed-based
-	#       declare -r filter and integrate them both directly into
-	#       filter-bash-environment.py.
+		BASH_[_[:alnum:]]* PATH"
 	if hasq --filter-sandbox $* ; then
 		filtered_vars="${filtered_vars} SANDBOX_[_[:alnum:]]*"
 	else
@@ -1446,6 +1441,8 @@ filter_readonly_variables() {
 		"
 	fi
 
+	# TODO: Take the the below sed-based declare -r filter and integrate it
+	#       directly into filter-bash-environment.py.
 	# The sed is to remove the readonly attribute from variables such as those
 	# listed in READONLY_EBUILD_METADATA, since having any readonly attributes
 	# persisting in the saved environment can be inconvenient when it
diff --git a/bin/filter-bash-environment.py b/bin/filter-bash-environment.py
index 8f4b6d0cb..ab348d992 100755
--- a/bin/filter-bash-environment.py
+++ b/bin/filter-bash-environment.py
@@ -69,7 +69,7 @@ def filter_bash_environment(pattern, file_in, file_out):
 			here_doc_delim = re.compile("^%s$" % here_doc.group(1))
 			file_out.write(line)
 			continue
-		# Note: here-documents are handled before fuctions since otherwise
+		# Note: here-documents are handled before functions since otherwise
 		# it would be possible for the content of a here-document to be
 		# mistaken as the end of a function.
 		if in_func:
@@ -103,7 +103,13 @@ if __name__ == "__main__":
 		parser.error("Missing required PATTERN argument.")
 	file_in = sys.stdin
 	file_out = sys.stdout
-	var_pattern = "^(%s)$" % "|".join(args[0].split())
+	var_pattern = args[0].split()
+
+	# Filter invalid variable names that are not supported by bash.
+	var_pattern.append(r'\d.*')
+	var_pattern.append(r'.*\W.*')
+
+	var_pattern = "^(%s)$" % "|".join(var_pattern)
 	filter_bash_environment(
 		compile_egrep_pattern(var_pattern), file_in, file_out)
 	file_out.flush()
-- 
2.26.2