#!/bin/bash

# Flathub retired org.mozilla.Thunderbird in favor of org.mozilla.thunderbird_esr,
# and flatpak update moves existing installs over itself. A skip-packages entry
# for the old ID would no longer keep Thunderbird from being installed, so
# carry it over to the new one.
SKIP_PACKAGES="$HOME/.config/coredesktop/skip-packages"
[ -f "$SKIP_PACKAGES" ] || exit 0
grep -qE '^org\.mozilla\.Thunderbird([[:space:]]|$)' "$SKIP_PACKAGES" || exit 0
grep -qE '^org\.mozilla\.thunderbird_esr([[:space:]]|$)' "$SKIP_PACKAGES" && exit 0
# Start a new line if the file doesn't end with one
[ -n "$(tail -c 1 "$SKIP_PACKAGES")" ] && echo >> "$SKIP_PACKAGES"
echo "org.mozilla.thunderbird_esr" >> "$SKIP_PACKAGES"