upgrade opkg all packages

upgrade_opkg.sh

# Thanks https://www.pcoic.com/system/linux/3261.html
#!/bin/bash
set -e
export PATH=/sbin:/bin:/usr/sbin:/usr/bin

echo "==> Updating package lists ..."
opkg update

TMP=$(mktemp)
opkg list-upgradable | grep -v '^Multiple' > "$TMP" || true

TOTAL=$(wc -l < "$TMP")

if [ "$TOTAL" -eq 0 ]; then
    echo
    echo "------------------------------------------------"
    echo "🎉 All packages are up to date, nothing to do."
    echo "------------------------------------------------"
    rm -f "$TMP"
    exit 0
fi

echo
echo "There are $TOTAL packages can be upgraded."
echo
echo "  1) Upgrade ONLY LuCI packages  (safe, recommended)"
echo "  2) Upgrade ALL packages        (may cause file clash, do it carefully)"
echo
printf "Select [1/2] (default 1): "
read -r CH
case "$CH" in
    2|all|ALL) GREP="" ;;
    *)         GREP="luci-" ;;
esac

PKGS=$(grep "$GREP" "$TMP" | cut -d' ' -f1 | xargs)
rm -f "$TMP"
if [ -z "$PKGS" ]; then
    echo "No matched packages, exit."
    exit 0
fi

echo "==> Upgrading selected packages ..."
set +e
for P in $PKGS; do
    echo "    upgrading $P ..."
    opkg upgrade "$P"
    RET=$?
    if [ $RET -ne 0 ]; then
        echo "        [!] $P upgrade failed (code $RET), continue anyway ..."
    fi
done

echo "==> Done."