#!/bin/sh
# Raspberry Pi OS : refresh + simulations + held + reboot-check + espace disque (carte SD).
# Non destructif. rpi-update volontairement NON utilisé (risqué).
export LC_ALL=C
export DEBIAN_FRONTEND=noninteractive
{{#aptProxy}}export http_proxy="{{aptProxy}}"; export https_proxy="{{aptProxy}}"
{{/aptProxy}}

echo "===SU:DISK==="
# Espace libre sur / en Ko (carte SD souvent petite) → le backend peut avertir avant upgrade.
df -Pk / 2>/dev/null | awk 'NR==2{print "ROOT_AVAIL_KB="$4"\nROOT_USE_PCT="$5}'

echo "===SU:APT_UPDATE==="
apt-get update -qq 2>&1
UPD=$?

echo "===SU:APT_SIM_UPGRADE==="
apt-get -s -y upgrade 2>&1

echo "===SU:APT_SIM_DISTUPGRADE==="
apt-get -s -y dist-upgrade 2>&1

echo "===SU:APT_HELD==="
apt-mark showhold 2>/dev/null

echo "===SU:REBOOT==="
if [ -f /run/reboot-required ] || [ -f /var/run/reboot-required ]; then
  echo "REBOOT_REQUIRED=1"
  [ -f /var/run/reboot-required.pkgs ] && sed 's/^/PKG=/' /var/run/reboot-required.pkgs
else
  echo "REBOOT_REQUIRED=0"
fi

echo "===SU:EXIT=${UPD}==="