add generator and repeatString

generator-exercise/generators/app/index.js

@@ -0,0 +1,41 @@
+'use strict';
+const Generator = require('yeoman-generator');
+const chalk = require('chalk');
+const yosay = require('yosay');
+
+module.exports = class extends Generator {
+  prompting() {
+    // Have Yeoman greet the user.
+    this.log(chalk.red('Let\'s do this'));
+
+    const prompts = [{
+      type: 'input',
+      name: 'title',
+      message: 'Enter the exercise title',
+      default: 'title'
+    }];
+
+    return this.prompt(prompts).then(props => {
+      // To access props later use this.props.someAnswer;
+      this.props = props;
+    });
+  }
+
+  writing() {
+    this.fs.copyTpl(
+      this.templatePath(`title.js`),
+      this.destinationPath(`${this.props.title}.js`),
+      {title: this.props.title}
+    );
+    this.fs.copyTpl(
+      this.templatePath(`title.spec.js`),
+      this.destinationPath(`${this.props.title}.spec.js`),
+      {title: this.props.title}
+    );
+    this.fs.copyTpl(
+      this.templatePath(`README.md`),
+      this.destinationPath(`README.md`),
+      {title: this.props.title}
+    );
+  }
+};

generator-exercise/generators/app/templates/README.md

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+# Exercise XX - <%= title %>
+

generator-exercise/generators/app/templates/dummyfile.txt

@@ -0,0 +1 @@
+<%= title %>

generator-exercise/generators/app/templates/title.js

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+var <%= title %> = function() {
+
+}
+
+module.exports = <%= title %>

generator-exercise/generators/app/templates/title.spec.js

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+var <%= title %> = require('./<%=title%>')
+
+describe('<%=title%>', function() {
+  it('EDITME', function() {
+    expect(<%=title%>()).toEqual(' ');
+  });
+
+});