#!/usr/bin/env bash
# Run in an isolated build directory. No game executable runs on the host.
set -euo pipefail
revision=6bbf0925d221a7304ea8e0dda1e89b8dc01569b2
git clone https://github.com/caiiiycuk/emulators.git emulators
cd emulators
git checkout "$revision"
git config submodule.native/dosbox.url https://github.com/js-dos/dosbox.git
git config submodule.native/dosbox-x.url https://github.com/js-dos/dosbox-x.git
git config submodule.native/sokol-tools-bin.url https://github.com/floooh/sokol-tools-bin.git
git submodule update --init --recursive
# Upstream Dockerfile pins Emscripten 3.1.28. Use its isolated image/toolchain.
# The npm published binary is used unchanged; this recipe has not been rebuilt here.
command -v emcc >/dev/null || { echo 'Activate isolated Emscripten 3.1.28 first.' >&2; exit 1; }
emcc --version | head -1 | grep -q '3.1.28' || { echo 'Expected Emscripten 3.1.28.' >&2; exit 1; }
command -v yarn >/dev/null || { echo 'Provide Yarn in the isolated build environment.' >&2; exit 1; }
yarn --frozen-lockfile
yarn gulp wasm
yarn gulp
# Selected outputs: dist/emulators.js dist/wdosbox.js dist/wdosbox.wasm
# Compatibility engine: dist/wdosbox-x.js dist/wdosbox-x.wasm