feat: Add rootDir option to PkgToJsrConfig

This commit introduces a new option 'rootDir' to the PkgToJsrConfig. This
allows users to specify the root directory for the package.json resolution.
If not provided, it defaults to the workspace directory. The changes also
include updates to the 'bin.ts' file to accommodate this new option.

src/bin.ts

@@ -1,17 +1,19 @@
 import fs from 'node:fs/promises';
-import { dirname, resolve } from 'pathe';
-import { readPackageJSON, resolvePackageJSON } from 'pkg-types';
+import { resolve } from 'pathe';
+import { findWorkspaceDir, readPackageJSON, resolvePackageJSON } from 'pkg-types';
 import { consola } from 'consola';
 import { genJsrFromPkg } from './utils';
 import { loadConfig } from './config';
 
-const pkgJSONPath = await resolvePackageJSON();
+const options = await loadConfig();
+
+const { rootDir: _rootDir } = options;
+const rootDir = _rootDir ?? await findWorkspaceDir();
+
+const pkgJSONPath = await resolvePackageJSON(rootDir);
 const pkgJSON = await readPackageJSON(pkgJSONPath);
-const rootDir = dirname(pkgJSONPath);
 const jsrPath = resolve(rootDir, 'jsr.json');
 
-const options = await loadConfig();
-
 const jsr = genJsrFromPkg({ pkgJSON, options });
 
 await fs.writeFile(jsrPath, JSON.stringify(jsr, null, '\t'));

src/type.ts

@@ -10,6 +10,26 @@ export type JSR = {
 	exports: Exports;
 };
 
+/**
+ * The configuration object
+ */
 export type PkgToJsrConfig = {
+	/**
+	 * The exports object
+	 *
+	 * @example
+	 * ```typescript
+	 * {
+	 *   ".": "./src/index.ts",
+	 *   "./lib": "./src/lib.ts",
+	 * }
+	 * ```
+	 */
 	exports: Exports;
+
+	/**
+	 * The root directory
+	 * @default "."
+	 */
+	rootDir?: string;
 };