From 60faa5f05c807514eb03be00fa3850670608e142 Mon Sep 17 00:00:00 2001
From: gaspar-ilom <gasparilom@riseup.net>
Date: Sun, 23 Feb 2025 00:04:41 +0100
Subject: [PATCH] fix show system info battery display in case there is more
 than 1 battery

show health and charge state for each battery

Signed-off-by: gaspar-ilom <gasparilom@riseup.net>
---
 initrd/etc/functions     | 20 ++++++++++++--------
 initrd/etc/gui_functions |  6 +-----
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/initrd/etc/functions b/initrd/etc/functions
index f4703116..2b0eeb45 100644
--- a/initrd/etc/functions
+++ b/initrd/etc/functions
@@ -1221,17 +1221,21 @@ fromhex_plain() {
 }
 
 print_battery_health() {
-	if [ -d /sys/class/power_supply/BAT* ]; then
-		battery_health=$(awk "BEGIN {printf \"%d\", ($(cat /sys/class/power_supply/BAT*/charge_full)/$(cat /sys/class/power_supply/BAT*/charge_full_design)*100)}")
-		echo "$battery_health"
-	fi
+	for battery in /sys/class/power_supply/BAT*; do
+		if [[ -d "${battery}" ]]; then
+			battery_health=$(awk "BEGIN {printf \"%d\", ($(cat "${battery}/charge_full")/$(cat "${battery}/charge_full_design")*100)}")
+			echo "$(basename "${battery}") ${battery_health}"
+		fi
+	done
 }
 
 print_battery_charge() {
-	if [ -d /sys/class/power_supply/BAT* ]; then
-		battery_charge=$(awk "BEGIN {printf \"%d\", ($(cat /sys/class/power_supply/BAT*/charge_now)/$(cat /sys/class/power_supply/BAT*/charge_full)*100)}")
-		echo "$battery_charge"
-	fi
+	for battery in /sys/class/power_supply/BAT*; do
+		if [[ -d "${battery}" ]]; then
+			battery_charge=$(awk "BEGIN {printf \"%d\", ($(cat "${battery}/charge_now")/$(cat "${battery}/charge_full")*100)}")
+			echo "$(basename "${battery}") ${battery_charge}"
+		fi
+	done	
 }
 
 generate_random_mac_address() {
diff --git a/initrd/etc/gui_functions b/initrd/etc/gui_functions
index 8c6a6519..5b6fc520 100755
--- a/initrd/etc/gui_functions
+++ b/initrd/etc/gui_functions
@@ -165,11 +165,7 @@ file_selector() {
 
 show_system_info() {
 	TRACE_FUNC
-	battery_charge="$(print_battery_charge)"
-	battery_health="$(print_battery_health)"
-	if [ -n "$battery_charge" ] && [ -n "$battery_health" ]; then
-		battery_status="\nBattery charge: $battery_charge%\nBattery health: $battery_health%\n"
-	fi
+	battery_status=$(paste <(print_battery_charge) <(print_battery_health) | awk '{printf "\\nBattery %s charge: %s%\\nBattery %s health: %s%", substr($1,4), $2, substr($3,4), $4}; END { if (NR!=0) printf "\\n"}')
 
 	memtotal=$(cat /proc/meminfo | grep 'MemTotal' | tr -s ' ' | cut -f2 -d ' ')
 	memtotal=$((${memtotal} / 1024 / 1024 + 1))