esbuild.js

const esbuild = require("esbuild");

// Common plugin for module replacements
const browserifyPlugin = {
  name: "alias",
  setup(build) {
    // Handle os module replacement
    build.onResolve({ filter: /^os$/ }, (args) => {
      return { path: require.resolve("os-browserify/browser") };
    });

    // Handle path module replacement
    build.onResolve({ filter: /^path$/ }, (args) => {
      return { path: require.resolve("path-browserify") };
    });
  },
};

// Build both CJS and ESM versions
Promise.all([
  // Browser builds:
  // CommonJS build
  esbuild.build({
    entryPoints: ["src/browser.ts"],
    bundle: true,
    format: "cjs",
    outdir: "dist/cjs",
    platform: "browser",
    plugins: [browserifyPlugin],
  }),

  // ESM build
  esbuild.build({
    entryPoints: ["src/browser.ts"],
    bundle: true,
    format: "esm",
    outdir: "dist/esm",
    platform: "browser",
    plugins: [browserifyPlugin],
  }),

  // Index builds:
  // Node:
  // CommonJS build
  esbuild.build({
    entryPoints: ["src/index.ts"],
    bundle: true,
    format: "cjs",
    platform: "node",
    outdir: "dist/cjs",
    plugins: [browserifyPlugin],
  }),

  // ESM build
  esbuild.build({
    entryPoints: ["src/index.ts"],
    bundle: true,
    format: "esm",
    platform: "node",
    outdir: "dist/esm",
    plugins: [browserifyPlugin],
  }),

  // Edge:
  // CommonJS build
  esbuild.build({
    entryPoints: ["src/index.ts"],
    outfile: "dist/cjs/index.edge.js",
    bundle: true,
    format: "cjs",
    platform: "browser",
    plugins: [browserifyPlugin],
  }),

  // ESM build
  esbuild.build({
    entryPoints: ["src/index.ts"],
    outfile: "dist/esm/index.edge.js",
    bundle: true,
    format: "esm",
    platform: "browser",
    plugins: [browserifyPlugin],
  }),

  // Bin builds:
  esbuild.build({
    entryPoints: ["src/bin/main.ts"],
    outfile: "dist/bin/codesandbox.js",
    bundle: true,
    format: "cjs",
    platform: "node",
    banner: {
      js: `#!/usr/bin/env node\n\n`,
    },
  }),
]).catch(() => {
  process.exit(1);
});