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postinstall.js
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postinstall.js
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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
/**
* A postinstall script runs after `@swc/core` is installed.
*
* It checks if corresponding optional dependencies for native binary is installed and can be loaded properly.
* If it fails, it'll internally try to install `@swc/wasm` as fallback.
*/
const fs_1 = require("fs");
const assert = __importStar(require("assert"));
const path = __importStar(require("path"));
const child_process = __importStar(require("child_process"));
const fs = __importStar(require("fs"));
function removeRecursive(dir) {
for (const entry of fs.readdirSync(dir)) {
const entryPath = path.join(dir, entry);
let stats;
try {
stats = fs.lstatSync(entryPath);
}
catch (_a) {
continue; // Guard against https://github.com/nodejs/node/issues/4760
}
if (stats.isDirectory())
removeRecursive(entryPath);
else
fs.unlinkSync(entryPath);
}
fs.rmdirSync(dir);
}
/**
* Trying to validate @swc/core's native binary installation, then installs if it is not supported.
*/
const validateBinary = () => __awaiter(void 0, void 0, void 0, function* () {
var _a;
try {
const { name } = require(path.resolve(process.env.INIT_CWD, 'package.json'));
if (name === '@swc/core') {
return;
}
}
catch (_) {
return;
}
// TODO: We do not take care of the case if user try to install with `--no-optional`.
// For now, it is considered as deliberate decision.
let binding;
try {
binding = require('./binding');
// Check if binding binary actually works.
// For the latest version, checks target triple. If it's old version doesn't have target triple, use parseSync instead.
const triple = binding.getTargetTriple ? binding.getTargetTriple() : binding.parseSync('console.log()', Buffer.from(JSON.stringify({ syntax: "ecmascript" })));
assert.ok(triple, 'Failed to read target triple from native binary.');
}
catch (error) {
// if error is unsupported architecture, ignore to display.
if (!((_a = error.message) === null || _a === void 0 ? void 0 : _a.includes('Unsupported architecture'))) {
console.warn(error);
}
console.warn(`@swc/core was not able to resolve native bindings installation. It'll try to use @swc/wasm as fallback instead.`);
}
if (!!binding) {
return;
}
// User choose to override the binary installation. Skip remanining validation.
if (!!process.env["SWC_BINARY_PATH"]) {
console.warn(`@swc/core could not resolve native bindings installation, but found manual override config SWC_BINARY_PATH specified. Skipping remaning validation.`);
return;
}
// Check if top-level package.json installs @swc/wasm separately already
let wasmBinding;
try {
wasmBinding = require.resolve(`@swc/wasm`);
}
catch (_) {
}
if (!!wasmBinding && (0, fs_1.existsSync)(wasmBinding)) {
return;
}
const env = Object.assign(Object.assign({}, process.env), { npm_config_global: undefined });
const { version } = require(path.join(path.dirname(require.resolve('@swc/core')), 'package.json'));
// We want to place @swc/wasm next to the @swc/core as if normal installation was done,
// but can't directly set cwd to INIT_CWD as npm seems to acquire lock to the working dir.
// Instead, create a temporary inner and move it out.
const coreDir = path.dirname(require.resolve('@swc/core'));
const installDir = path.join(coreDir, 'npm-install');
try {
fs.mkdirSync(installDir);
fs.writeFileSync(path.join(installDir, 'package.json'), '{}');
// Instead of carrying over own dependencies to download & resolve package which increases installation sizes of `@swc/core`,
// assume & relies on system's npm installation.
child_process.execSync(`npm install --no-save --loglevel=error --prefer-offline --no-audit --progress=false @swc/wasm@${version}`, { cwd: installDir, stdio: 'pipe', env });
const installedBinPath = path.join(installDir, 'node_modules', `@swc/wasm`);
// INIT_CWD is injected via npm. If it doesn't exists, can't proceed.
fs.renameSync(installedBinPath, path.resolve(process.env.INIT_CWD, 'node_modules', `@swc/wasm`));
}
catch (error) {
console.error(error);
console.error(`Failed to install fallback @swc/wasm@${version}. @swc/core will not properly.
Please install @swc/wasm manually, or retry whole installation.
If there are unexpected errors, please report at https://github.com/swc-project/swc/issues`);
}
finally {
try {
removeRecursive(installDir);
}
catch (_) {
// Gracefully ignore any failures. This'll make few leftover files but it shouldn't block installation.
}
}
});
validateBinary().catch((error) => {
// for now just throw the error as-is.
throw error;
});