fix(cli): resolve npm mobules when compile less

packages/vant-cli/package.json

@@ -30,7 +30,6 @@
     "@types/eslint": "^6.1.3",
     "@types/fs-extra": "^8.0.1",
     "@types/html-webpack-plugin": "^3.2.1",
-    "@types/less": "^3.0.1",
     "@types/lodash": "^4.14.149",
     "@types/postcss-load-config": "^2.0.1",
     "@types/sass": "^1.16.0",

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

@@ -1,10 +1,26 @@
+// @ts-ignore
+import { render, FileManager } from 'less';
 import { readFileSync } from 'fs-extra';
-import { render as renderLess } from 'less';
+
+// less plugin to resolve tilde
+class TildeResolver extends FileManager {
+  loadFile(filename: string, ...args: any[]) {
+    filename = filename.replace('~', '');
+    return FileManager.prototype.loadFile.apply(this, [filename, ...args]);
+  }
+}
+
+const TildeResolverPlugin = {
+  install(lessInstance: unknown, pluginManager: any) {
+    pluginManager.addFileManager(new TildeResolver());
+  }
+};
 
 export async function compileLess(filePath: string) {
   const source = readFileSync(filePath, 'utf-8');
-  const { css } = await renderLess(source, {
+  const { css } = await render(source, {
-    filename: filePath
+    filename: filePath,
+    plugins: [TildeResolverPlugin]
   });
 
   return css;

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

@@ -1,6 +1,6 @@
-import { renderSync as renderSass } from 'sass';
+import { renderSync } from 'sass';
 
 export async function compileSass(filePath: string) {
-  const { css } = renderSass({ file: filePath });
+  const { css } = renderSync({ file: filePath });
   return css;
 }

packages/vant-cli/src/config/webpack.base.ts

@@ -1,10 +1,8 @@
 // @ts-ignore
 import FriendlyErrorsPlugin from '@nuxt/friendly-errors-webpack-plugin';
 import sass from 'sass';
-import { resolve } from 'path';
 import { VueLoaderPlugin } from 'vue-loader';
 import {
-  ROOT,
   STYLE_EXTS,
   SCRIPT_EXTS,
   POSTCSS_CONFIG_FILE
@@ -61,10 +59,7 @@ export const baseConfig = {
         use: [
           ...CSS_LOADERS,
           {
-            loader: 'less-loader',
+            loader: 'less-loader'
-            options: {
-              paths: [resolve(ROOT, 'node_modules')]
-            }
           }
         ]
       },

packages/vant-cli/yarn.lock

@@ -1386,11 +1386,6 @@
   resolved "https://registry.npm.taobao.org/@types/json-schema/download/@types/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"
   integrity sha1-vf1p1h5GTcyBslFZwnDXWnPBpjY=
 
-"@types/less@^3.0.1":
-  version "3.0.1"
-  resolved "https://registry.npm.taobao.org/@types/less/download/@types/less-3.0.1.tgz#625694093c72f8356c4042754e222407e50d6b08"
-  integrity sha1-YlaUCTxy+DVsQEJ1TiIkB+UNawg=
-
 "@types/lodash@^4.14.149":
   version "4.14.149"
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.149.tgz#1342d63d948c6062838fbf961012f74d4e638440"

src/icon/index.less

@@ -1,5 +1,5 @@
 @import '../style/var';
-@import '@vant/icons/src/index.less';
+@import '~@vant/icons/src/index.less';
 
 .van-icon {
   &__image {

src/icon/local.less

@@ -1 +1 @@
-@import '@vant/icons/src/encode.less';
+@import '~@vant/icons/src/encode.less';