feat(cli): add create command

packages/vant-cli/src/compiler/vant-cli-generator.ts

@@ -0,0 +1,72 @@
+import chalk from 'chalk';
+import { join } from 'path';
+import { consola, slimPath } from '../common/logger';
+import { CWD, GENERATOR_DIR } from '../common/constant';
+import Generator from 'yeoman-generator';
+
+const TEMPLATES = join(GENERATOR_DIR, 'templates');
+const PROMPTS = [
+  {
+    type: 'input',
+    name: 'name',
+    message: 'Your package name'
+  }
+];
+
+export class VantCliGenerator extends Generator {
+  inputs = {
+    name: ''
+  };
+
+  async prompting() {
+    return this.prompt(PROMPTS).then(inputs => {
+      this.inputs = inputs as any;
+    });
+  }
+
+  writing() {
+    consola.info(`Creating project in ${slimPath(CWD)}\n`);
+
+    const copy = (from: string, to?: string) => {
+      this.fs.copy(join(TEMPLATES, from), this.destinationPath(to || from));
+    };
+
+    const copyTpl = (name: string) => {
+      this.fs.copyTpl(
+        join(TEMPLATES, name),
+        this.destinationPath(name),
+        this.inputs
+      );
+    };
+
+    copy('.gitignore');
+    copy('.eslintignore');
+    copy('babel.config.js');
+    copy('src/**/*', 'src');
+    copy('docs/**/*', 'docs');
+    copyTpl('package.json');
+    copyTpl('vant.config.js');
+  }
+
+  install() {
+    console.log();
+    consola.info('Install dependencies...\n');
+
+    this.installDependencies({
+      npm: false,
+      bower: false,
+      yarn: true,
+      skipMessage: true
+    });
+  }
+
+  end() {
+    console.log();
+    consola.success(
+      `Successfully created project ${chalk.yellow(this.inputs.name)}.`
+    );
+    consola.success(
+      `Now you can run ${chalk.yellow('yarn dev')} to start development!`
+    );
+  }
+}