Added auto generated env-example file with generate command

Author: erdemkosk

Diff for: .env-example

@@ -0,0 +1,2 @@
+TEST=
+TEST1=

Diff for: bin/index.ts

@@ -77,10 +77,19 @@ program
 
 program
   .command('restore-env')
-  .description(`${chalk.yellow('RESTORE')} the .env file based on the latest changes in the version.json file.`)
+  .description(`${chalk.yellow('RESTORE')} env file if u remove your env`)
   .action(async () => {
     const command: Command | null = factory.createCommand(CommandTypes.RESTORE_ENV)
     command !== null && CommandInvoker.executeCommands(command)
   })
 
+program
+  .command('generate')
+  .description(`${chalk.yellow('GENERATE')} the .env-example file based on ypur env file.`)
+  .alias('g')
+  .action(async () => {
+    const command: Command | null = factory.createCommand(CommandTypes.GENERATE_EXAMPLE_ENV)
+    command !== null && CommandInvoker.executeCommands(command)
+  })
+
 program.parse(process.argv)

Diff for: lib/command/commandFactory.ts

@@ -7,6 +7,7 @@ import RevertCommand from './commandTypes/revertCommand'
 import SyncCommand from './commandTypes/syncCommand'
 import UpdateAllCommand from './commandTypes/updateAllCommand'
 import UpdateCommand from './commandTypes/updateCommand'
+import GenerateCommand from './commandTypes/generateCommand'
 
 export default class CommandFactory {
   createCommand (commandType: number, ...params: any []): Command | null {
@@ -25,6 +26,8 @@ export default class CommandFactory {
         return new RevertCommand(params)
       case CommandTypes.RESTORE_ENV:
         return new RestoreCommand(params)
+      case CommandTypes.GENERATE_EXAMPLE_ENV:
+        return new GenerateCommand(params)
 
       default:
         return null

Diff for: lib/command/commandTypes/generateCommand.ts

@@ -0,0 +1,22 @@
+import Command from '../command'
+import { generateEnvExampleFile } from '../../handler/envHandler'
+import chalk from 'chalk'
+import { consola } from 'consola'
+
+export default class RestoreCommand extends Command {
+  protected async beforeExecute (): Promise<any> {
+    const isConfirmed = await this.askForConfirmation()
+
+    if (!isConfirmed) {
+      console.log(`Operation is ${chalk.red('cancelled!')}`)
+    }
+  }
+
+  protected async onExecute (beforeExecuteReturnValue: any): Promise<void> {
+    const isSuccess = await generateEnvExampleFile()
+
+    isSuccess
+      ? consola.success('Env example was creating successfully. You are ready to go!')
+      : consola.error('There was a problem generate .env-example file.')
+  }
+}

Diff for: lib/const.ts

@@ -5,5 +5,6 @@ export enum CommandTypes {
   COMPARE = 4,
   UPDATE = 5,
   REVERT = 6,
-  RESTORE_ENV = 7
+  RESTORE_ENV = 7,
+  GENERATE_EXAMPLE_ENV = 8,
 }

Diff for: lib/handler/envHandler.ts

@@ -336,3 +336,21 @@ export async function restoreEnvFile (): Promise<boolean> {
 
   return true
 }
+
+export async function generateEnvExampleFile (): Promise<boolean> {
+  const currentDirectory = process.cwd()
+
+  const currentPathDoesContainEnvFile = await doesFileExist(path.join(currentDirectory, '.env'))
+
+  if (!currentPathDoesContainEnvFile) {
+    return false
+  }
+
+  const envValues = await getValuesInEnv({ targetPath: path.join(currentDirectory, '.env') })
+
+  const result = envValues.data.map(innerArr => innerArr[0] + '=').join('\n')
+
+  await writeFile(path.join(currentDirectory, '.env-example'), result)
+
+  return true
+}