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import { execSync } from 'child_process';
import { copyFileSync, mkdirSync } from 'fs';
import { join, resolve } from 'path';
let platform = process.env.WASM_PLATFORM ?? '';
const WASM_OUT = resolve(__dirname, '../build/wasm');
const WASM_SRC = resolve(__dirname, '../');
if (!platform && process.argv[2]) {
platform = execSync('docker info -f "{{.OSType}}/{{.Architecture}}"').toString().trim();
}
if (process.argv[2] === '--prebuild') {
const cmd = `docker build --platform=${platform.toString().trim()} -t llhttp_wasm_builder .`;
/* tslint:disable-next-line no-console */
console.log(`> ${cmd}\n\n`);
execSync(cmd, { stdio: 'inherit' });
process.exit(0);
}
if (process.argv[2] === '--setup') {
try {
mkdirSync(join(WASM_SRC, 'build'));
process.exit(0);
} catch (error) {
if (error.code !== 'EEXIST') {
throw error;
}
process.exit(0);
}
}
if (process.argv[2] === '--docker') {
let cmd = `docker run --rm -it --platform=${platform.toString().trim()}`;
// Try to avoid root permission problems on compiled assets
// when running on linux.
// It will work flawessly if uid === gid === 1000
// there will be some warnings otherwise.
if (process.platform === 'linux') {
cmd += ` --user ${process.getuid()}:${process.getegid()}`;
}
cmd += ` --mount type=bind,source=${WASM_SRC}/build,target=/home/node/llhttp/build llhttp_wasm_builder npm run wasm`;
/* tslint:disable-next-line no-console */
console.log(`> ${cmd}\n\n`);
execSync(cmd, { cwd: WASM_SRC, stdio: 'inherit' });
process.exit(0);
}
try {
mkdirSync(WASM_OUT);
} catch (error) {
if (error.code !== 'EEXIST') {
throw error;
}
}
// Build ts
execSync('npm run build', { cwd: WASM_SRC, stdio: 'inherit' });
// Build wasm binary
execSync(
`clang \
--sysroot=/usr/share/wasi-sysroot \
-target wasm32-unknown-wasi \
-Ofast \
-fno-exceptions \
-fvisibility=hidden \
-mexec-model=reactor \
-Wl,-error-limit=0 \
-Wl,-O3 \
-Wl,--lto-O3 \
-Wl,--strip-all \
-Wl,--allow-undefined \
-Wl,--export-dynamic \
-Wl,--export-table \
-Wl,--export=malloc \
-Wl,--export=free \
-Wl,--no-entry \
${join(WASM_SRC, 'build', 'c')}/*.c \
${join(WASM_SRC, 'src', 'native')}/*.c \
-I${join(WASM_SRC, 'build')} \
-o ${join(WASM_OUT, 'llhttp.wasm')}`,
{ stdio: 'inherit' },
);
// Copy constants for `.js` and `.ts` users.
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.js'), join(WASM_OUT, 'constants.js'));
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.js.map'), join(WASM_OUT, 'constants.js.map'));
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.d.ts'), join(WASM_OUT, 'constants.d.ts'));
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.js'), join(WASM_OUT, 'utils.js'));
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.js.map'), join(WASM_OUT, 'utils.js.map'));
copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.d.ts'), join(WASM_OUT, 'utils.d.ts'));
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