first commit

vant/packages/vant-cli/src/compiler/compile-style.ts

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+import { parse } from 'path';
+import { readFileSync, writeFileSync } from 'fs';
+import { replaceExt } from '../common';
+import { compileCss } from './compile-css';
+import { compileLess } from './compile-less';
+import { compileSass } from './compile-sass';
+import { consola } from '../common/logger';
+
+async function compileFile(filePath: string) {
+  const parsedPath = parse(filePath);
+
+  try {
+    if (parsedPath.ext === '.less') {
+      const source = await compileLess(filePath);
+      return await compileCss(source);
+    }
+
+    if (parsedPath.ext === '.scss') {
+      const source = await compileSass(filePath);
+      return await compileCss(source);
+    }
+
+    const source = readFileSync(filePath, 'utf-8');
+    return await compileCss(source);
+  } catch (err) {
+    consola.error('Compile style failed: ' + filePath);
+    throw err;
+  }
+}
+
+export async function compileStyle(filePath: string) {
+  const css = await compileFile(filePath);
+
+  writeFileSync(replaceExt(filePath, '.css'), css);
+}