refactor(esbuild): wrap all the logic inside a plugin

scripts/build.mjs

@@ -1,87 +1,7 @@
 import esbuild from "esbuild";
-import { copyFile, readFile, writeFile, rm } from "fs/promises";
-import { glob } from "glob";
+import octokitBundlesPlugin from "./esbuild-octokit-plugin.js";
 
-const sharedOptions = {
-  sourcemap: "external",
-  sourcesContent: true,
-  minify: false,
-  allowOverwrite: true,
-  packages: "external",
-};
-
-async function main() {
-  // Start with a clean slate
-  await rm("pkg", { recursive: true, force: true });
-  // Build the source code for a neutral platform as ESM
-  await esbuild.build({
-    entryPoints: await glob(["./src/*.ts", "./src/**/*.ts"]),
-    outdir: "pkg/dist-src",
-    bundle: false,
-    platform: "neutral",
-    format: "esm",
-    ...sharedOptions,
-    sourcemap: false,
-  });
-
-  // Remove the types file from the dist-src folder
-  const typeFiles = await glob([
-    "./pkg/dist-src/**/types.js.map",
-    "./pkg/dist-src/**/types.js",
-  ]);
-  for (const typeFile of typeFiles) {
-    await rm(typeFile);
-  }
-
-  const entryPoints = ["./pkg/dist-src/index.js"];
-
-  await Promise.all([
-    // Build the a CJS Node.js bundle
-    esbuild.build({
-      entryPoints,
-      outdir: "pkg/dist-node",
-      bundle: true,
-      platform: "node",
-      target: "node14",
-      format: "cjs",
-      ...sharedOptions,
-    }),
-    // Build an ESM browser bundle
-    esbuild.build({
-      entryPoints,
-      outdir: "pkg/dist-web",
-      bundle: true,
-      platform: "browser",
-      format: "esm",
-      ...sharedOptions,
-    }),
-  ]);
-
-  // Copy the README, LICENSE to the pkg folder
-  await copyFile("LICENSE.md", "pkg/LICENSE.md");
-  await copyFile("README.md", "pkg/README.md");
-
-  // Handle the package.json
-  let pkg = JSON.parse((await readFile("package.json", "utf8")).toString());
-  // Remove unnecessary fields from the package.json
-  delete pkg.scripts;
-  delete pkg.prettier;
-  delete pkg.release;
-  await writeFile(
-    "pkg/package.json",
-    JSON.stringify(
-      {
-        ...pkg,
-        files: ["dist-*/**", "bin/**"],
-        main: "dist-node/index.js",
-        browser: "dist-web/index.js",
-        types: "dist-types/index.d.ts",
-        module: "dist-src/index.js",
-        sideEffects: false,
-      },
-      null,
-      2
-    )
-  );
-}
-main();
+esbuild.build({
+  // Your build configuration
+  plugins: [octokitBundlesPlugin()],
+});

scripts/esbuild-octokit-plugin.js

@@ -0,0 +1,100 @@
+const fs = require("fs/promises");
+const glob = require("glob");
+const esbuild = require("esbuild");
+
+const octokitBundlesPlugin = (options = {}) => {
+  const sharedOptions = {
+    sourcemap: "external",
+    sourcesContent: true,
+    minify: false,
+    allowOverwrite: true,
+    packages: "external",
+    ...options,
+  };
+
+  return {
+    name: "octokit-bundles",
+    async setup(build) {
+      // Run the build steps after the main build
+      build.onEnd(async (result) => {
+        if (result.errors.length) return;
+
+        // Start with a clean slate
+        await fs.rm("pkg", { recursive: true, force: true });
+
+        // Build the source code for a neutral platform as ESM
+        await esbuild.build({
+          entryPoints: await glob(["./src/*.ts", "./src/**/*.ts"]),
+          outdir: "pkg/dist-src",
+          bundle: false,
+          platform: "neutral",
+          format: "esm",
+          ...sharedOptions,
+          sourcemap: false,
+        });
+
+        // Remove the types file from the dist-src folder
+        const typeFiles = await glob([
+          "./pkg/dist-src/**/types.js.map",
+          "./pkg/dist-src/**/types.js",
+        ]);
+        for (const typeFile of typeFiles) {
+          await fs.rm(typeFile);
+        }
+
+        const entryPoints = ["./pkg/dist-src/index.js"];
+
+        await Promise.all([
+          // Build the CJS Node.js bundle
+          esbuild.build({
+            entryPoints,
+            outdir: "pkg/dist-node",
+            bundle: true,
+            platform: "node",
+            target: "node14",
+            format: "cjs",
+            ...sharedOptions,
+          }),
+          // Build the ESM browser bundle
+          esbuild.build({
+            entryPoints,
+            outdir: "pkg/dist-web",
+            bundle: true,
+            platform: "browser",
+            format: "esm",
+            ...sharedOptions,
+          }),
+        ]);
+
+        // Copy the README, LICENSE to the pkg folder
+        await fs.copyFile("LICENSE.md", "pkg/LICENSE.md");
+        await fs.copyFile("README.md", "pkg/README.md");
+
+        // Handle the package.json
+        let pkg = JSON.parse(await fs.readFile("package.json", "utf8"));
+        // Remove unnecessary fields from the package.json
+        delete pkg.scripts;
+        delete pkg.prettier;
+        delete pkg.release;
+        await fs.writeFile(
+          "pkg/package.json",
+          JSON.stringify(
+            {
+              ...pkg,
+              files: ["dist-*/**", "bin/**"],
+              main: "dist-node/index.js",
+              browser: "dist-web/index.js",
+              types: "dist-types/index.d.ts",
+              module: "dist-src/index.js",
+              sideEffects: false,
+            },
+            null,
+            2
+          )
+        );
+      });
+    },
+  };
+};
+
+module.exports = octokitBundlesPlugin;