feat(cli): add build-site command

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

@@ -0,0 +1,63 @@
+import webpack from 'webpack';
+import WebpackDevServer from 'webpack-dev-server';
+import { getPort } from 'portfinder';
+import { buildESModuleOutputs } from '../commands/build';
+import { genPackageEntry } from './gen-package-entry';
+import { genPacakgeStyle } from './gen-package-style';
+import { genSiteMobileShared } from './gen-site-mobile-shared';
+import { genSiteDesktopShared } from './gen-site-desktop-shared';
+import { genStyleDepsMap } from './gen-style-deps-map';
+import { siteDevConfig } from '../config/webpack.site.dev';
+import { sitePrdConfig } from '../config/webpack.site.prd';
+
+function watch() {
+  const server = new WebpackDevServer(
+    webpack(siteDevConfig),
+    (siteDevConfig as any).devServer
+  );
+
+  getPort(
+    {
+      port: 8080
+    },
+    (err, port) => {
+      if (err) {
+        console.log(err);
+        return;
+      }
+
+      server.listen(port, 'localhost', (err?: Error) => {
+        if (err) {
+          console.log(err);
+        }
+      });
+    }
+  );
+}
+
+function build() {
+  return new Promise((resolve, reject) => {
+    webpack(sitePrdConfig, (err, stats) => {
+      if (err || stats.hasErrors()) {
+        reject();
+      } else {
+        resolve();
+      }
+    });
+  });
+}
+
+export async function compileSite(production = false) {
+  await buildESModuleOutputs();
+  genStyleDepsMap();
+  genPackageEntry();
+  genPacakgeStyle();
+  genSiteMobileShared();
+  genSiteDesktopShared();
+
+  if (production) {
+    await build();
+  } else {
+    watch();
+  }
+}