Rework environment filtering, removing the need to try to parse bash code with sed.

1 files changed, 41 insertions, 0 deletions

diff --git a/paludis/repositories/e/ebuild/source_functions.bash b/paludis/repositories/e/ebuild/source_functions.bash
new file mode 100644
index 000000000..4a5f588d2
--- /dev/null
+++ b/paludis/repositories/e/ebuild/source_functions.bash
@@ -0,0 +1,41 @@
+#!/bin/bash
+# vim: set sw=4 sts=4 et :
+
+# Copyright (c) 2007 David Leverton
+#
+# Based in part upon ebuild.sh from Portage, which is Copyright 1995-2005
+# Gentoo Foundation and distributed under the terms of the GNU General
+# Public License v2.
+#
+# This file is part of the Paludis package manager. Paludis is free software;
+# you can redistribute it and/or modify it under the terms of the GNU General
+# Public License, version 2, as published by the Free Software Foundation.
+#
+# Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+# Place, Suite 330, Boston, MA  02111-1307  USA
+
+ebuild_safe_source()
+{
+    set -- "${@}" \
+        EUID PPID UID FUNCNAME GROUPS SHELLOPTS \
+        'BASH_@(ARGC|ARGV|LINENO|SOURCE|VERSINFO|REMATCH)' \
+        'BASH_COMPLETEION?(_DIR)' 'bash+([0-9])?([a-z])' \
+        EBUILD_KILL_PID PALUDIS_LOADSAVEENV_DIR PALUDIS_DO_NOTHING_SANDBOXY SANDBOX_ACTIVE
+
+    trap DEBUG
+    set -T
+    shopt -s extdebug
+    trap "[[ \${BASH_COMMAND%% *} == @(eval|trap) ||
+              ( \${BASH_COMMAND} != *([^\$'\n'])=* && \${BASH_COMMAND} != export\ * ) ||
+              \${BASH_COMMAND} != ?(export\ )@($(IFS='|'; shift; echo "${*}"))?(=*) ]]" DEBUG
+
+    source "${1}"
+    eval "trap DEBUG; shopt -u extdebug; set +T; return ${?}"
+}
+