From 2ffe758ed848086439e5bc6c5723a4e77511c989 Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Tue, 1 Sep 2020 09:32:00 +0200
Subject: [PATCH] Add gentoo-env-to-systemd

This script transforms Gentoo's /etc/profile.env to a systemd user
unit environment configuration file placed in /usr/lib/environment.d
named gentoo-env.conf.

The script is meant to be invoked by a, not yet existing, env-update
hook that is invoked after /etc/profile.env was (re-)generated.

Bug: https://bugs.gentoo.org/704416
Signed-off-by: Florian Schmaus <flo@geekplace.eu>
---
 gentoo-env-to-systemd | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100755 gentoo-env-to-systemd

diff --git a/gentoo-env-to-systemd b/gentoo-env-to-systemd
new file mode 100755
index 0000000..74d53d0
--- /dev/null
+++ b/gentoo-env-to-systemd
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v3 (or any later version)
+set -euo pipefail
+
+while getopts :d OPT; do
+	case $OPT in
+		d)
+			set -x
+			;;
+		*)
+			echo "usage: ${0##*/} [-d]"
+			exit 2
+	esac
+done
+
+readonly GENTOO_PROFILE_ENV_PATH="/etc/profile.env"
+readonly GENTOO_SYSTEMD_ENV_CONF="/usr/lib/environment.d/gentoo-env.conf"
+
+# Strip "export " to transform gentoo's profile.env syntax, which is
+# shell, to systemd's environment.d syntax (which is shell-like
+# without explicit "export" keyword).
+readonly STRIP_EXPORT_REGEX="s;^export ;;"
+# Strip comments.
+readonly STRIP_COMMENTS_REGEX="/^[ \t]*#/d"
+# Strip emtpy lines.
+readonly STRIP_EMPTY_LINES_REGEX="/^[ \t]*$/d"
+
+sed -e "${STRIP_EXPORT_REGEX}" \
+	-e "${STRIP_COMMENTS_REGEX}" \
+	-e "${STRIP_EMPTY_LINES_REGEX}" \
+	"${GENTOO_PROFILE_ENV_PATH}" \
+	> "${GENTOO_SYSTEMD_ENV_CONF}"
-- 
2.26.2