✨ First-time installation prompt

bin/builders/BaseBuilder.ts

@@ -22,7 +22,11 @@ export default abstract class BaseBuilder {
   }
 
   async prepare() {
-    if (!IS_MAC) {
+    const tauriSrcPath = path.join(npmDirectory, 'src-tauri');
+    const tauriTargetPath = path.join(tauriSrcPath, 'target');
+    const tauriTargetPathExists = await fsExtra.pathExists(tauriTargetPath);
+
+    if (!IS_MAC && !tauriTargetPathExists) {
       logger.info('✺ The first use requires installing system dependencies.');
       logger.info('✺ See more in https://tauri.app/v1/guides/getting-started/prerequisites.');
     }
@@ -44,20 +48,25 @@ export default abstract class BaseBuilder {
 
     const isChina = await isChinaDomain('www.npmjs.com');
     const spinner = getSpinner('Installing package...');
+    const rustProjectDir = path.join(tauriSrcPath, '.cargo');
+    const projectConf = path.join(rustProjectDir, 'config');
+    await fsExtra.ensureDir(rustProjectDir);
+
     if (isChina) {
       logger.info('✺ Located in China, using npm/rsProxy CN mirror.');
-      const rustProjectDir = path.join(npmDirectory, 'src-tauri', '.cargo');
-      await fsExtra.ensureDir(rustProjectDir);
-      const projectCnConf = path.join(npmDirectory, 'src-tauri', 'rust_proxy.toml');
-      const projectConf = path.join(rustProjectDir, 'config');
+      const projectCnConf = path.join(tauriSrcPath, 'rust_proxy.toml');
       await fsExtra.copy(projectCnConf, projectConf);
       await shellExec(`cd "${npmDirectory}" && npm install --registry=https://registry.npmmirror.com`);
     } else {
       await shellExec(`cd "${npmDirectory}" && npm install`);
     }
     spinner.succeed(chalk.green('Package installed!'));
+    if (!tauriTargetPathExists) {
+      logger.warn('✼ The first packaging may be slow, please be patient and wait, it will be faster afterwards.');
+    }
   }
 
+
   async build(url: string) {
     await this.buildAndCopy(url, this.options.targets);
   }