Scalar generator in the cli

Author: andrelmlins

src/generators/ControllerGenerator.ts

@@ -38,6 +38,6 @@ if (controllerName) {
   }
 } else {
   console.error('\x1b[31mSpecify the name controller.', '\x1b[0m');
-  console.log(`  For example: recife-cli controller UserController`);
-  console.log(`  Run recife-cli --help for more information\n`);
+  console.log(`  For example: recife-cli controller User`);
+  console.log(`  Run --help for more information\n`);
 }

src/generators/ProjectGenerator.ts

@@ -38,5 +38,5 @@ if (projectName) {
 } else {
   console.error('\x1b[31mSpecify the name project.', '\x1b[0m');
   console.log(`  For example: recife-cli project my-project-name`);
-  console.log(`  Run recife-cli --help for more information\n`);
+  console.log(`  Run --help for more information\n`);
 }

src/generators/ScalarGenerator.ts

@@ -0,0 +1,40 @@
+import fs from 'fs';
+import path from 'path';
+import commander from 'commander';
+import capitalize from '../utils/capitalize';
+import replaceMask from '../utils/replaceMask';
+
+let scalarName: string = '';
+
+commander
+  .name(`recife-cli scalar`)
+  .arguments('<scalar-name>')
+  .action(name => (scalarName = name))
+  .allowUnknownOption(false)
+  .parse(process.argv);
+
+if (scalarName) {
+  scalarName = capitalize(scalarName.replace(/Scalar|\.ts|\.js/g, ''));
+
+  scalarName += 'Scalar';
+
+  const source = path.join(__dirname, '/../../templates/scalar/template');
+  const target = path.join(process.cwd(), 'src/scalars', `${scalarName}.ts`);
+
+  try {
+    const contentFile = fs.readFileSync(source).toString();
+    fs.writeFileSync(
+      target,
+      replaceMask(contentFile, {
+        scalarName,
+        name: scalarName.replace('Scalar', '')
+      })
+    );
+  } catch (err) {
+    console.log(`\x1b[31m${err}\x1b[0m`);
+  }
+} else {
+  console.error('\x1b[31mSpecify the name scalar.', '\x1b[0m');
+  console.log(`  For example: recife-cli scalar Email`);
+  console.log(`  Run -help for more information\n`);
+}

src/index.ts

@@ -24,6 +24,12 @@ commander
       '../dist/generators/ControllerGenerator.js'
     )
   })
+  .command('scalar', 'Create a scalar', {
+    executableFile: path.join(
+      __dirname,
+      '../dist/generators/ScalarGenerator.js'
+    )
+  })
   .allowUnknownOption(false);
 
 commander.parse(process.argv);

templates/scalar/template

@@ -0,0 +1,22 @@
+import { Kind, GraphQLError } from 'graphql';
+import ScalarType from 'recife';
+
+const [[scalarName]]: ScalarType = {
+  name: '[[name]]',
+  description: 'A [[name]] scalar',
+  parseValue: value => {
+    return value;
+  },
+  serialize: value => {
+    return value;
+  },
+  parseLiteral: ast => {
+    if (ast.kind !== Kind.STRING) {
+      throw new GraphQLError(`This "${ast}" is not a string`);
+    }
+
+    return ast.value;
+  }
+};
+
+export default [[scalarName]];