chore(cli): split compilers

packages/vant-cli/src/compiler/gen-package-style.ts

@@ -0,0 +1,32 @@
+import { get } from 'lodash';
+import { join } from 'path';
+import { writeFileSync } from 'fs-extra';
+import { replaceExt } from '../common';
+import {
+  CONFIG,
+  SRC_DIR,
+  PACKAGE_STYLE_FILE,
+  STYPE_DEPS_JSON_FILE
+} from '../common/constant';
+
+// eslint-disable-next-line
+const styleDepsJson = require(STYPE_DEPS_JSON_FILE);
+
+function getStyleExt(): string {
+  const preprocessor = get(CONFIG, 'build.css.preprocessor', 'less');
+
+  if (preprocessor === 'sass') {
+    return '.scss';
+  }
+
+  return `.${preprocessor}`;
+}
+
+export function genPacakgeStyle() {
+  const ext = getStyleExt();
+  const content = styleDepsJson.sequence
+    .map((name: string) => `@import "${join(SRC_DIR, `${name}/index${ext}`)}";`)
+    .join('\n');
+
+  writeFileSync(replaceExt(PACKAGE_STYLE_FILE, ext), content);
+}