refactor: split node entry

package.json

@@ -12,6 +12,11 @@
       "import": "./dist/index.js",
       "require": "./dist/index.cjs"
     },
+    "./node": {
+      "types": "./dist/node.d.ts",
+      "import": "./dist/node.js",
+      "require": "./dist/node.cjs"
+    },
     "./esbuild": {
       "types": "./dist/plugins/esbuild.d.ts",
       "import": "./dist/plugins/esbuild.js",

src/core.ts

@@ -0,0 +1,25 @@
+/**
+ * Yarn Spinner Loader - Core API
+ *
+ * Pure functions and types for working with Yarn Spinner.
+ * This module does NOT depend on Node.js modules.
+ */
+
+// Re-export yarn-spinner parser
+export { parseYarn } from './yarn-spinner/parse/parser';
+export { compile } from './yarn-spinner/compile/compiler';
+export { YarnRunner } from './yarn-spinner/runtime/runner';
+
+// Re-export types
+export type {
+  LoadOptions,
+  LoadResult,
+  LoadedYarnFile,
+  YarnProject,
+  SchemaValidationError,
+  RunnerOptions,
+  TextResult,
+  OptionsResult,
+  CommandResult,
+  RuntimeResult,
+} from './types';

src/index.ts

@@ -1,31 +1,26 @@
 /**
  * Yarn Spinner Loader - Main Entry Point
- * 
- * Load and compile Yarn Spinner project files (.yarnproject)
- * and their associated .yarn dialogue files.
+ *
+ * Pure API for working with Yarn Spinner documents.
+ * This module does NOT depend on Node.js modules.
+ * For filesystem operations, use the 'yarn-spinner-loader/node' entry point.
  */
 
-export {
-  loadYarnProject,
-  loadYarnProjectSync,
-  type LoadOptions,
-  type LoadResult,
-  type LoadedYarnFile,
-  LoadError,
-  ValidationError as LoaderValidationError,
-} from './loader/index';
-
-export {
-  validateYarnProject,
-  isYarnProject,
-  type SchemaValidationError,
-} from './loader/validator';
-
-export type { YarnProject } from './loader/types';
-
-// Re-export yarn-spinner parser
+// Re-export yarn-spinner parser and runtime
 export { parseYarn } from './yarn-spinner/parse/parser';
 export { compile } from './yarn-spinner/compile/compiler';
 export { YarnRunner } from './yarn-spinner/runtime/runner';
-export type { RunnerOptions } from './yarn-spinner/runtime/runner';
-export type { TextResult, OptionsResult, CommandResult, RuntimeResult } from './yarn-spinner/runtime/results';
+
+// Re-export types
+export type {
+  LoadOptions,
+  LoadResult,
+  LoadedYarnFile,
+  YarnProject,
+  SchemaValidationError,
+  RunnerOptions,
+  TextResult,
+  OptionsResult,
+  CommandResult,
+  RuntimeResult,
+} from './types';

src/node.ts

@@ -0,0 +1,24 @@
+/**
+ * Yarn Spinner Loader - Node.js API
+ *
+ * Functions that depend on Node.js modules (fs, path, fast-glob).
+ * Use this entry point when you need to load .yarnproject files from the filesystem.
+ */
+
+export {
+  loadYarnProject,
+  loadYarnProjectSync,
+  type LoadOptions,
+  type LoadResult,
+  type LoadedYarnFile,
+  LoadError,
+  ValidationError as LoaderValidationError,
+} from './loader/index';
+
+export {
+  validateYarnProject,
+  isYarnProject,
+  type SchemaValidationError,
+} from './loader/validator';
+
+export type { YarnProject } from './loader/types';

src/types.ts

@@ -0,0 +1,59 @@
+/**
+ * Yarn Spinner Loader - Type Definitions
+ *
+ * Pure type definitions that don't depend on Node.js modules.
+ */
+
+import type { YarnProject } from './loader/types';
+import type { SchemaValidationError } from './loader/validator';
+import type { YarnDocument } from './yarn-spinner/model/ast';
+import type { RunnerOptions } from './yarn-spinner/runtime/runner';
+import type {
+  TextResult,
+  OptionsResult,
+  CommandResult,
+  RuntimeResult,
+} from './yarn-spinner/runtime/results';
+
+export type {
+  YarnProject,
+  SchemaValidationError,
+  YarnDocument,
+  RunnerOptions,
+  TextResult,
+  OptionsResult,
+  CommandResult,
+  RuntimeResult,
+};
+
+/**
+ * Options for loading a Yarn project
+ */
+export interface LoadOptions {
+  /** Base directory for resolving glob patterns (default: directory of .yarnproject file) */
+  baseDir?: string;
+}
+
+/**
+ * Loaded Yarn document with metadata
+ */
+export interface LoadedYarnFile {
+  /** File path relative to base directory */
+  relativePath: string;
+  /** Absolute file path */
+  absolutePath: string;
+  /** Parsed Yarn document */
+  document: YarnDocument;
+}
+
+/**
+ * Result of loading a Yarn project
+ */
+export interface LoadResult {
+  /** Parsed .yarnproject configuration */
+  project: YarnProject;
+  /** Directory containing the .yarnproject file */
+  baseDir: string;
+  /** All loaded and parsed .yarn files */
+  yarnFiles: LoadedYarnFile[];
+}

tsup.config.ts

@@ -9,6 +9,13 @@ export default defineConfig([
     clean: true,
     outDir: 'dist',
   },
+  {
+    entry: ['src/node.ts'],
+    format: ['esm', 'cjs'],
+    dts: true,
+    sourcemap: true,
+    outDir: 'dist',
+  },
   {
     entry: ['src/plugins/esbuild.ts'],
     format: ['esm', 'cjs'],