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build.js
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build.js
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const esbuild = require("esbuild");
const path = require("node:path");
const fs = require("node:fs");
const { apply } = require("./patch");
const outDir = path.resolve(__dirname, "../dist");
const srcDir = path.resolve(__dirname, "../src");
/**
* @param args {{ watch: boolean }}
*/
async function build({ watch }) {
const pkgJson = await fs.promises.readFile(path.resolve(__dirname, "../package.json"), "utf8");
const { dependencies = [] } = JSON.parse(pkgJson);
const esmOpts = {
entryPoints: [srcDir],
tsconfig: path.resolve(__dirname, "../tsconfig.build.json"),
outfile: path.resolve(outDir, "index.mjs"),
bundle: true,
format: "esm",
target: "node14",
platform: "node",
external: Object.keys(dependencies).flatMap((d) => [d, `${d}/*`]),
};
const cjsOpts = {
...esmOpts,
outfile: path.resolve(outDir, "index.js"),
format: "cjs",
define: { "import.meta.url": "importMetaUrl" },
inject: [path.resolve(__dirname, "cjs_shims.js")],
};
if (!watch) {
await esbuild.build(esmOpts);
await esbuild.build(cjsOpts);
} else {
const contexts = [await esbuild.context(esmOpts), await esbuild.context(cjsOpts)];
contexts.map((ctx) => ctx.watch());
}
}
if (require.main === module) {
const args = process.argv.slice(2);
// TODO: check overwrite
const extPath = path.resolve(__dirname, "../src/typescript-language-features");
fs.stat(extPath, async (err, stat) => {
await new Promise((resolve) => {
if (err || !stat.isDirectory()) {
apply().then(resolve);
} else {
resolve();
}
});
build({ watch: args[0] === "watch" }).catch(console.error);
});
}