84 lines
3.8 KiB
JavaScript
84 lines
3.8 KiB
JavaScript
import { copyFile, mkdir, rm } from "node:fs/promises";
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import path from "node:path";
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import { fileURLToPath } from "node:url";
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import esbuild from "esbuild";
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/**
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* Builds the Ekklesia shell into a static browser application.
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*
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* This is **not** the module UI build pipeline, and the two must not be conflated. ADR 0023's
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* `@ekklesia/module-ui-build` compiles a *module's* `src/ui/index.tsx` into the artifact its
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* manifest declares, is owned by the platform so module authors write no bundler configuration, and
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* runs when a module is packaged. This script builds *this application*, is owned by this package
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* alone, and knows nothing about manifests. They happen to share a bundler; they share no
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* configuration, no contract, and no output.
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*
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* Installed module UIs are deliberately **not** bundled in. The shell has no import of any module,
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* so there is nothing for esbuild to reach: every module artifact is fetched at run time from the
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* URL the inventory returned. That is the property that makes modules independently installable, and
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* bundling one would silently destroy it.
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*/
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const packageDirectory = path.dirname(path.dirname(fileURLToPath(import.meta.url)));
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const outputDirectory = path.join(packageDirectory, "dist", "browser");
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const serve = process.argv.includes("--serve");
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/**
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* Empty means "the API is on this page's own origin" — the expected production shape. Set it to an
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* absolute origin for split-origin development (`EKKLESIA_API_BASE_URL=http://127.0.0.1:3000`), and
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* add this page's own origin to `EKKLESIA_IDENTITY_TRUSTED_ORIGINS` so the API reflects it for CORS
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* and the session cookie travels.
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*/
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const apiBaseUrl = process.env.EKKLESIA_API_BASE_URL ?? "";
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/** @type {import("esbuild").BuildOptions} */
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const buildOptions = {
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absWorkingDir: packageDirectory,
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// Everything the shell needs is bundled; a browser resolves nothing at run time except the module
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// artifacts it is told about, which are real URLs rather than bare specifiers.
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bundle: true,
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define: {
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__EKKLESIA_API_BASE_URL__: JSON.stringify(apiBaseUrl),
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// React reads this at module scope and a browser has no `process`.
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"process.env.NODE_ENV": JSON.stringify(serve ? "development" : "production"),
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},
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entryPoints: {
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app: path.join(packageDirectory, "src", "browser", "main.tsx"),
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"display/app": path.join(packageDirectory, "src", "display", "main.tsx"),
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},
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format: "esm",
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jsx: "automatic",
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logLevel: "info",
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// Unminified, matching the module UI build: an operator is expected to be able to read what their
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// installation actually serves, and nothing else in this repository minifies.
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minify: false,
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outdir: outputDirectory,
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platform: "browser",
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sourcemap: true,
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// Matches `browser.json`'s `target`, so what TypeScript typechecks and what esbuild emits agree.
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target: "es2022",
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};
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await rm(outputDirectory, { force: true, recursive: true });
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await mkdir(outputDirectory, { recursive: true });
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await mkdir(path.join(outputDirectory, "display"), { recursive: true });
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await copyFile(path.join(packageDirectory, "index.html"), path.join(outputDirectory, "index.html"));
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await copyFile(
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path.join(packageDirectory, "display.html"),
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path.join(outputDirectory, "display", "index.html"),
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);
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if (serve) {
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const context = await esbuild.context(buildOptions);
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await context.watch();
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const { host, port } = await context.serve({ servedir: outputDirectory });
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console.log(`Ekklesia shell (development) on http://${host}:${port}`);
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console.log(
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apiBaseUrl === ""
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? "API origin: this page's own origin. Set EKKLESIA_API_BASE_URL for a split-origin API."
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: `API origin: ${apiBaseUrl}`,
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);
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} else {
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await esbuild.build(buildOptions);
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console.log(`Built the Ekklesia shell into ${path.relative(packageDirectory, outputDirectory)}`);
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}
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