feat: use bun-types

To check only valid Bun modules, this commit uses `bun-types`.

`bun-types` should be installed by the consumer because it's peerDependency.

Author: riywo

.projen/deps.json

@@ -4,6 +4,7 @@ const project = new OpsBRTypeScriptProject({
   defaultReleaseBranch: "main",
   deps: ["debug", "eslint-import-resolver-typescript"],
   devDeps: ["@opsbr/projen-typescript", "@types/debug"],
+  peerDeps: ["bun-types"],
   workflowPackageCache: true,
   releaseToNpm: true,
 });

.projenrc.ts

@@ -1 +1,3 @@
-# replace this
+# eslint-import-resolver-typescript-bun
+
+This plugin simply adds workarounds to [eslint-import-resolver-typescript](https://www.npmjs.com/package/eslint-import-resolver-typescript) when resolving [Bun](https://bun.sh/)'s modules.

README.md

@@ -1,14 +1,36 @@
+import { readFileSync } from "node:fs";
 import debug from "debug";
 import { resolve as resolveTs } from "eslint-import-resolver-typescript";
 
 const IMPORTER_NAME = "eslint-import-resolver-typescript-bun";
 
 const log = debug(IMPORTER_NAME);
 
+const findBunModules = () => {
+  const { found, path } = resolveTs("bun-types", "bun-types");
+  if (!found || !path) {
+    log("bun-types not found.");
+    return undefined;
+  }
+  // TODO: Better way to inspect .d.ts file.
+  const bunTypesDefinition = readFileSync(path, "utf-8");
+  const bunModules = new Set(
+    bunTypesDefinition
+      .split("\n")
+      // Find `declare module "bun..." {`
+      .filter((line) => line.includes('declare module "bun'))
+      // Extract `bun...` parts only
+      .map((line) => line.split('"')[1])
+  );
+  log("found bun modules:", bunModules);
+  return bunModules;
+};
+const bunModules = findBunModules();
+
 export const interfaceVersion = 2;
 
 export const resolve: typeof resolveTs = function (source, file, config) {
-  if (source.startsWith("bun:")) {
+  if (bunModules?.has(source)) {
     log("matched bun modules:", source);
     return { found: true, path: null };
   }

package.json

@@ -8,7 +8,9 @@ test.each([
   { source: "fs", found: true, path: null },
   { source: "node:fs", found: true, path: null },
   { source: "not_found", found: false, path: undefined },
+  { source: "bun", found: true, path: null },
   { source: "bun:test", found: true, path: null },
+  { source: "bun:not_found", found: false, path: undefined },
 ])(
   "resolve $source => found: $found, path: $path",
   ({ source, found, path }) => {