From 8d697f662cf2e59930f6b79726502cc016cec325 Mon Sep 17 00:00:00 2001
From: "Anna (navi) Figueiredo Gomes" <navi@vlhl.dev>
Date: Thu, 15 Jun 2023 16:14:00 -0300
Subject: openrc-run.sh: save and load variables on default start

temporary system for testing, it's gonna store any environment variables
defined in export_vars="", and subsequent services will load them.
ideally we only want to load the variables saved by services we depend
on, so that would change later.

Signed-off-by: Anna (navi) Figueiredo Gomes <navi@vlhl.dev>
---
 sh/openrc-run.sh.in |  5 +++++
 sh/rc-functions.sh  | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/sh/openrc-run.sh.in b/sh/openrc-run.sh.in
index ed565a46..12a4c6eb 100644
--- a/sh/openrc-run.sh.in
+++ b/sh/openrc-run.sh.in
@@ -149,6 +149,11 @@ _status()
 # supervisor modules
 default_start()
 {
+	if yesno "${RC_USER_SERVICES}"; then
+		load_variables
+		save_variables
+	fi
+
 	local func=ssd_start
 	case "$supervisor" in
 		runit) func=runit_start ;;
diff --git a/sh/rc-functions.sh b/sh/rc-functions.sh
index 81d065b8..922bb870 100644
--- a/sh/rc-functions.sh
+++ b/sh/rc-functions.sh
@@ -134,6 +134,23 @@ _depend() {
 	done
 }
 
+save_variables() {
+	mkdir -p "${RC_SVCDIR}"/env/
+
+	local _envname
+
+	if [ -n "${export_vars}" ]; then
+		rm "${RC_SVCDIR}/env/${RC_SVCNAME}"
+		for _envname in ${export_vars}; do
+			eval echo "${_envname}=\$${_envname}" >> "${RC_SVCDIR}/env/${RC_SVCNAME}"
+		done
+	fi
+}
+
+load_variables() {
+	sourcex -e "${RC_SVCDIR}/env/*"
+}
+
 # Add our sbin to $PATH
 case "$PATH" in
 	"$RC_LIBEXECDIR"/sbin|"$RC_LIBEXECDIR"/sbin:*);;
-- 
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