Timothy J. Aveni
35 lines
2.4 KiB
JavaScript
35 lines
2.4 KiB
JavaScript
import {createRequire} from "node:module";
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import path from "node:path";
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// Resolve build dependencies from the package's locked node_modules, not from
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// the helper's own Nix-store location. This program runs only during the build.
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const require = createRequire(path.join(process.cwd(), "package.json"));
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const {build} = require("esbuild");
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const options = JSON.parse(process.argv[2]);
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const platform = new Map([
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["react", "/__quixos/platform/react/v18.mjs"],
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["react/jsx-runtime", "/__quixos/platform/react-jsx-runtime/v18.mjs"],
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["react/jsx-dev-runtime", "/__quixos/platform/react-jsx-dev-runtime/v18.mjs"],
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["@quixos/web-studio-react-runtime", "/__quixos/platform/web-studio-react-runtime/v1.mjs"],
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]);
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await build({...options, plugins: [{name: "quixos-browser-source", setup(api) {
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api.onResolve({filter: /\?browser-source$/}, ({path: specifier, resolveDir}) => {
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if (!specifier.startsWith("./") && !specifier.startsWith("../")) throw new Error("Browser source imports must name a relative compiled module");
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return {path: path.resolve(resolveDir, specifier.slice(0, -"?browser-source".length)), namespace: "browser-source"};
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});
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api.onLoad({filter: /.*/, namespace: "browser-source"}, async ({path: entry}) => {
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const browser = await build({entryPoints: [entry], bundle: true, write: false, outfile: "component.mjs",
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format: "esm", platform: "browser", target: "es2022", metafile: true,
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plugins: [{name: "quixos-platform", setup(browserApi) {
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browserApi.onResolve({filter: /.*/}, ({path: name}) => platform.has(name) ? {path: platform.get(name), external: true} : undefined);
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}}]});
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const js = browser.outputFiles.find(file => file.path.endsWith(".mjs"));
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if (!js) throw new Error("Browser source build produced no JavaScript");
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const css = browser.outputFiles.find(file => file.path.endsWith(".css"));
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if (css && Object.values(browser.metafile.outputs).some(output => output.exports.includes("styles"))) throw new Error("Use either imported CSS or an explicit styles export, not both");
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if (browser.outputFiles.some(file => !file.path.endsWith(".mjs") && !file.path.endsWith(".css"))) throw new Error("Browser assets must be embedded, not emitted as unserved files");
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const source = js.text + (css ? `\nexport const styles = ${JSON.stringify(css.text)};\n` : "");
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return {contents: `export default ${JSON.stringify(source)};`, loader: "js", watchFiles: Object.keys(browser.metafile.inputs)};
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});
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}}]});
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