Lazy-loading some heavy parsers, shaving some overhead from startup w…

…hen they are not needed

src/config_prettier.ts

@@ -1,6 +1,3 @@
-import TOML from "@iarna/toml";
-import yaml from "js-yaml";
-import JSON5 from "json5";
 import fs from "node:fs";
 import path from "node:path";
 import JSONC from "tiny-jsonc";
@@ -33,6 +30,7 @@ const Loaders = {
  },
  json5: async (filePath: string): Promise<unknown> => {
  const fileContent = fs.readFileSync(filePath, "utf8");
+ const JSON5 = (await import("json5")).default;
  const config = JSON5.parse(fileContent);
  return config;
  },
@@ -53,9 +51,11 @@ const Loaders = {
  },
  toml: async (filePath: string): Promise<unknown> => {
  const fileContent = fs.readFileSync(filePath, "utf8");
+ const TOML = (await import("@iarna/toml")).default;
  return TOML.parse(fileContent);
  },
  yaml: async (filePath: string): Promise<unknown> => {
+ const yaml = (await import("js-yaml")).default;
  const fileContent = fs.readFileSync(filePath, "utf8");
  return yaml.load(fileContent, {
  schema: yaml.JSON_SCHEMA,