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| const { build } = require("esbuild"); | |
| const chokidar = require("chokidar"); | |
| const liveServer = require("live-server"); | |
| (async () => { | |
| const builder = await build({ | |
| bundle: true, | |
| // Defines env variables for bundled JavaScript; here `process.env.NODE_ENV` | |
| // is propagated with a fallback. | |
| define: { | |
| "process.env.NODE_ENV": JSON.stringify( | |
| process.env.NODE_ENV || "development" | |
| ), | |
| }, | |
| entryPoints: ["src/dev.tsx"], | |
| // Uses incremental compilation (see `chokidar.on`). | |
| incremental: true, | |
| // Removes whitespace, etc. depending on `NODE_ENV=...`. | |
| minify: process.env.NODE_ENV === "production", | |
| outfile: "public/script.js", | |
| sourcemap: true, | |
| }); | |
| // `chokidar` watcher source changes. | |
| chokidar | |
| // Watches TypeScript and React TypeScript. | |
| .watch("src/**/*.{ts,tsx}", { | |
| interval: 0, // No delay | |
| }) | |
| // Rebuilds esbuild (incrementally -- see `build.incremental`). | |
| .on("all", () => { | |
| builder.rebuild(); | |
| }); | |
| // `liveServer` local server for hot reload. | |
| liveServer.start({ | |
| // Opens the local server on start. | |
| open: true, | |
| // Uses `PORT=...` or 8080 as a fallback. | |
| port: +process.env.PORT || 8080, | |
| // Uses `public` as the local server folder. | |
| root: "public", | |
| }); | |
| })(); |
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