feat: add CLI

compiler/cli.ts

@@ -0,0 +1,40 @@
+import inquirer from 'inquirer'
+import Logger, { Level } from './log'
+import fs from 'fs'
+import { getBoilerplateSpecContent, SOURCE_FOLDER_NAME } from './constants'
+import path from 'path'
+
+async function createNewSpecCLI() {
+  try {
+    const { cliName } = await inquirer.prompt<{ cliName: string }>([
+      {
+        type: 'input',
+        message: "What's the name of the CLI you want to create the Spec for?",
+        name: 'cliName',
+      },
+    ])
+
+    const specFileName = `${cliName.toLowerCase()}.ts`
+    const specPath = path.join(process.cwd(), SOURCE_FOLDER_NAME, specFileName)
+    const hasSpec = fs.existsSync(specPath)
+
+    // We don't want to overwrite the spec if it already exists
+    if (hasSpec) {
+      Logger.log(`The spec "${specFileName}" already exists.`, Level.ERROR)
+      return
+    }
+
+    fs.writeFileSync(specPath, getBoilerplateSpecContent(cliName), {
+      encoding: 'utf-8',
+    })
+
+    Logger.log(
+      `Successfully created the new Spec "${specFileName}"!`,
+      Level.SUCCESS
+    )
+  } catch (e) {
+    Logger.log("Couldn't create Spec! Please try again.", Level.ERROR)
+  }
+}
+
+createNewSpecCLI()

compiler/compiler.ts

@@ -4,6 +4,7 @@ import path from 'path'
 import { specTransformer } from './transformer'
 import SpecLogger, { Level } from './log'
 import ProgressBar from 'progress'
+import { DESTINATION_FOLDER_NAME, SOURCE_FOLDER_NAME } from './constants'
 
 // The options for the TypeScript compiler
 const options: ts.TranspileOptions = {
@@ -15,10 +16,6 @@ const options: ts.TranspileOptions = {
   },
 }
 
-// Folder names
-const SOURCE_FOLDER_NAME = 'dev'
-const DESTINATION_FOLDER_NAME = 'specs'
-
 /**
  * Process a spec by transpiling it with the TypeScript
  * compiler.

compiler/constants.ts

@@ -0,0 +1,9 @@
+// Folder names
+export const SOURCE_FOLDER_NAME = 'dev'
+export const DESTINATION_FOLDER_NAME = 'specs'
+
+
+export const getBoilerplateSpecContent = (specName: string) => `
+export const completion: Fig.Spec =  {
+   name: "${specName}"
+}`