From: Clayton Craft <clayton@craftyguy.net>
To: ~mil/sxmo-devel@lists.sr.ht
Subject: [PATCH sxmo-utils 1/4] sxmo_xinit: add support for overriding vars with device-specific profiles
Date: Fri, 23 Apr 2021 10:45:12 -0700
Message-Id: <20210423174515.3697034-2-clayton@craftyguy.net>
In-Reply-To: <20210423174515.3697034-1-clayton@craftyguy.net>
References: <20210423174515.3697034-1-clayton@craftyguy.net>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

This reads base/compatible from the devicetree to get the device name,
and sources a script in /bin with a filename in the format
'sxmo_deviceprofile_NAME.sh'. The purpose of this is to allow
setting/overriding variables in other sxmo scripts with device-specific
values. For example, some audio devices on one phone may have different
names on another.
---
 scripts/core/sxmo_xinit.sh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/scripts/core/sxmo_xinit.sh b/scripts/core/sxmo_xinit.sh
index 148905a..22b3ab8 100755
--- a/scripts/core/sxmo_xinit.sh
+++ b/scripts/core/sxmo_xinit.sh
@@ -20,6 +20,13 @@ envvars() {
 	[ -z "$XDG_PICTURES_DIR" ] && export XDG_PICTURES_DIR=~/Pictures
 }
 
+device_envvars() {
+	device="$(cut -d ',' -f 2 < /sys/firmware/devicetree/base/compatible)"
+	deviceprofile="$(which "sxmo_deviceprofile_$device.sh")"
+	# shellcheck disable=SC1090
+	[ -f "$deviceprofile" ] && . "$deviceprofile"
+}
+
 setupxdgdir() {
 	mkdir -p $XDG_RUNTIME_DIR
 	chmod 700 $XDG_RUNTIME_DIR
@@ -117,6 +124,8 @@ xinit() {
 	. "$(dirname "$0")/sxmo_common.sh"
 
 	envvars
+	# set device env vars here to allow potentially overriding envvars
+	device_envvars
 	setupxdgdir
 	xdefaults
 	daemons
-- 
2.31.1