fix-playwright-firefox

#!/usr/bin/env bash

# This requires that you have the firefox-bin package installed on NixOS.

set -eu -o pipefail

firefox_wrapper_1=$(which firefox)
firefox_wrapper_2=$(cat "$firefox_wrapper_1" | grep '^exec ' | grep -o -P '/nix/store/[^"]+' | head -n 1)
firefox_binary=$(cat "$firefox_wrapper_2" | grep '^exec ' | grep -o -P '/nix/store/[^"]+' | head -n 1)
firefox_rpath=$(patchelf --print-rpath "$firefox_binary")
firefox_interpreter=$(patchelf --print-interpreter "$firefox_binary")

for i in ~/.cache/ms-playwright/firefox-*/firefox/firefox; do
	# Replace the redundant `firefox` with a wrapper over `firefox-bin`
	cat "$firefox_wrapper_1" "$firefox_wrapper_2" | grep '^export ' > $(dirname "$i")/firefox
	echo "exec \"${i}-bin\" \"\$@\"" >> $(dirname "$i")/firefox
	chmod +x "$(dirname "$i")/firefox"
done

find ~/.cache/ms-playwright/firefox-*/firefox/ -executable -type f | while read i; do
	echo "$i"
	if ! [[ "$i" == *.so ]]; then
		patchelf --set-interpreter "$firefox_interpreter" "$i" || true
	fi
	patchelf --set-rpath "$firefox_rpath" "$i" || true
done