chore: add monorepo tools (#9196)

tools/utils/src/package.ts

@@ -0,0 +1,81 @@
+import { readFileSync } from 'node:fs';
+import { parse } from 'node:path';
+
+import { type Path, ProjectRoot } from './path';
+import type { CommonPackageJsonContent, YarnWorkspaceItem } from './types';
+import type { Workspace } from './workspace';
+import { PackageList, type PackageName } from './workspace.gen';
+
+export function readPackageJson(path: Path): CommonPackageJsonContent {
+  const content = readFileSync(path.join('package.json').toString(), 'utf-8');
+
+  return JSON.parse(content);
+}
+
+export class Package {
+  readonly name: PackageName;
+  readonly packageJson: CommonPackageJsonContent;
+  readonly dirname: string;
+  readonly path: Path;
+  readonly srcPath: Path;
+  readonly nodeModulesPath: Path;
+  readonly libPath: Path;
+  readonly distPath: Path;
+  readonly version: string;
+  readonly isTsProject: boolean;
+  readonly workspaceDependencies: string[];
+  readonly deps: Package[] = [];
+  private _workspace: Workspace | null = null;
+
+  get entry() {
+    return this.packageJson.main || this.packageJson.exports?.['.'];
+  }
+
+  get dependencies() {
+    return this.packageJson.dependencies || {};
+  }
+
+  get devDependencies() {
+    return this.packageJson.devDependencies || {};
+  }
+
+  get workspace() {
+    if (!this._workspace) {
+      throw new Error('Workspace is not initialized');
+    }
+
+    return this._workspace;
+  }
+
+  private set workspace(workspace: Workspace) {
+    this._workspace = workspace;
+  }
+
+  constructor(name: PackageName, meta?: YarnWorkspaceItem) {
+    this.name = name as PackageName;
+    meta ??= PackageList.find(item => item.name === name)!;
+
+    // parse paths
+    this.path = ProjectRoot.join(meta.location);
+    this.dirname = parse(meta.location).name;
+    this.srcPath = this.path.join('src');
+    this.libPath = this.path.join('lib');
+    this.distPath = this.path.join('dist');
+    this.nodeModulesPath = this.path.join('node_modules');
+
+    // parse workspace
+    const packageJson = readPackageJson(this.path);
+    this.packageJson = packageJson;
+    this.version = packageJson.version;
+    this.workspaceDependencies = meta.workspaceDependencies;
+    this.isTsProject = this.path.join('tsconfig.json').isFile();
+  }
+
+  get scripts() {
+    return this.packageJson.scripts || {};
+  }
+
+  join(...paths: string[]) {
+    return this.path.join(...paths);
+  }
+}