build: add files of vant-cli 2

packages/vant-cli/src/common/index.ts

@@ -0,0 +1,67 @@
+import fs from 'fs-extra';
+import { join } from 'path';
+import { SRC_DIR } from './constant';
+
+export const EXT_REGEXP = /\.\w+$/;
+export const SFC_REGEXP = /\.(vue)$/;
+export const DEMO_REGEXP = /\/demo$/;
+export const TEST_REGEXP = /\/test$/;
+export const STYLE_REGEXP = /\.(css|less|scss)$/;
+export const SCRIPT_REGEXP = /\.(js|ts|jsx|tsx)$/;
+export const ENTRY_EXTS = ['js', 'ts', 'tsx', 'jsx', 'vue'];
+
+export function removeExt(path: string) {
+  return path.replace('.js', '');
+}
+
+export function replaceExt(path: string, ext: string) {
+  return path.replace(EXT_REGEXP, ext);
+}
+
+export function getComponents() {
+  const EXCLUDES = ['.DS_Store'];
+  const dirs = fs.readdirSync(SRC_DIR);
+  return dirs
+    .filter(dir => !EXCLUDES.includes(dir))
+    .filter(dir =>
+      ENTRY_EXTS.some(ext => fs.existsSync(join(SRC_DIR, dir, `index.${ext}`)))
+    );
+}
+
+export function isDir(dir: string) {
+  return fs.lstatSync(dir).isDirectory();
+}
+
+export function isDemoDir(dir: string) {
+  return DEMO_REGEXP.test(dir);
+}
+
+export function isTestDir(dir: string) {
+  return TEST_REGEXP.test(dir);
+}
+
+export function isSfc(path: string) {
+  return SFC_REGEXP.test(path);
+}
+
+export function isStyle(path: string) {
+  return STYLE_REGEXP.test(path);
+}
+
+export function isScript(path: string) {
+  return SCRIPT_REGEXP.test(path);
+}
+
+const camelizeRE = /-(\w)/g;
+const pascalizeRE = /(\w)(\w*)/g;
+
+export function camelize(str: string): string {
+  return str.replace(camelizeRE, (_, c) => c.toUpperCase());
+}
+
+export function pascalize(str: string): string {
+  return camelize(str).replace(
+    pascalizeRE,
+    (_, c1, c2) => c1.toUpperCase() + c2
+  );
+}