build: use Bun Shell and system APIs (#186)

src/index.ts

@@ -1,7 +1,7 @@
 import type { BuildIcons, IconOutput, ModuleName } from "@carbon/icons";
 import metadata_11_31 from "@carbon/icons-11.31/metadata.json";
 import metadata_latest from "@carbon/icons/metadata.json";
-import fsp from "fs/promises";
+import { $ } from "bun";
 import { devDependencies, name } from "../package.json";
 import { template, templateSvg } from "./template";
 
@@ -55,8 +55,8 @@ export const buildIcons = async () => {
  .filter(Boolean)
  .sort() as string[];
 
- await fsp.rm("lib", { recursive: true, force: true });
- await fsp.mkdir("lib");
+ await $`rm -rf lib`;
+ await $`mkdir lib`;
 
  let libExport = "";
  let definitions = `import type { SvelteComponentTyped } from "svelte";
@@ -126,28 +126,25 @@ export declare class CarbonIcon extends SvelteComponentTyped<
 
  const fileName = `lib/${name}.svelte`;
 
- fsp.writeFile(fileName, template(icon));
- fsp.writeFile(
- fileName + ".d.ts",
- `export { ${name} as default } from "./";\n`
- );
+ Bun.write(fileName, template(icon));
+ Bun.write(fileName + ".d.ts", `export { ${name} as default } from "./";\n`);
  });
 
- await fsp.writeFile("lib/index.js", libExport);
+ await Bun.write("lib/index.js", libExport);
 
  const version = `[@carbon/icons@${VERSION}](https://unpkg.com/browse/@carbon/icons@${VERSION}/)`;
  const total = iconModuleNames.length;
  const packageMetadata = `${total} icons from @carbon/icons@${devDependencies["@carbon/icons"]}`;
 
- await fsp.writeFile(
+ await Bun.write(
  "lib/index.d.ts",
  `// Type definitions for ${name}
 // ${packageMetadata}
 
 ${definitions}`
  );
 
- await fsp.writeFile(
+ await Bun.write(
  "ICON_INDEX.md",
  `# Icon Index\n
 > ${total} icons from ${version}\n
@@ -156,7 +153,7 @@ ${iconModuleNames
  .join("\n")}\n`
  );
 
- await fsp.writeFile(
+ await Bun.write(
  "docs/src/build-info.json",
  JSON.stringify({
  total,