lina-infratech-cli/src/generator/config-files.generator.ts

A CLI tool for Lina Infratech Developers

import axios from 'axios'
import { execSync } from 'child_process'
import { logSuccess, logWarning } from '../utils/chalk/colors'
import { MESSAGES } from '../ui/messages'
import { writeFile } from '../utils/writer'

function generatePrettierConfig() {
  const fileName = '.prettierrc'
  const content = `{
    'trailingComma': 'es5',
    'semi': false,
    'singleQuote': true,
    'bracketSpacing': true,
    'tabWidth': 2,
    'useTabs': true,
    'printWidth': 80,
    'endOfLine': 'lf',
  }`

  writeFile(fileName, content)
}

function generateTsConfig() {
  const fileName = 'tsconfig.json'
  const content = `{
  "compilerOptions": {
    "incremental": true,
    "target": "es2016",
    "experimentalDecorators": true,
    "module": "commonjs",
    "allowJs": true,
    "checkJs": true,
    "declaration": true,
    "outDir": "./dist",
    "removeComments": true,
    "importHelpers": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "skipLibCheck": true
  }
}`

  writeFile(fileName, content)
}

function generateNodemonJson() {
  const fileName = 'nodemon.json'
  const content = {
    'ignore': ['node_modules/**', 'dist/**'],
  }

  writeFile(fileName, JSON.stringify(content))
}

function generateLinterFile() {
  const fileName = '.eslintrc.js'
  const content = `module.exports = {
	env: {
		es6: true,
		node: true,
	},
	extends: ['airbnb-base', 'prettier'],
	plugins: ['prettier'],
	globals: {
		Atomics: 'readonly',
		SharedArrayBuffer: 'readonly',
	},
	parserOptions: {
		ecmaVersion: 2018,
		sourceType: 'module',
	},
	rules: {
		'no-new': 0,
		'no-template-curly-in-string': 0,
		'import/no-named-as-default': 0,
		'prettier/prettier': 'error',
		'class-methods-use-this': 'off',
		'no-param-reassign': 'off',
		camelcase: 'off',
		'no-unused-vars': ['error', { argsIgnorePattern: 'next' }],
		ident: ['error', 'tab'],
	},
	plugins: ['@typescript-eslint/eslint-plugin'],
	extends: [
		'plugin:@typescript-eslint/recommended',
		'plugin:prettier/recommended',
	],
	rules: {
		'prettier/prettier': 0,
	},
	root: true,
	env: {
		node: true,
		jest: true,
	},
}`
  writeFile(fileName, content)
}

async function generateGitFiles() {
  execSync('git init')

  const fileName = '.gitignore'

  let { data } = await axios(
    'https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore',
  )

  data += `*.swp\n.vscode\n.DS_Store`

  writeFile(fileName, data)
}

function generateDockerIgnore() {
  const fileName = '.dockerignore'
  const content = '.git\nnode_modules\ndist\n.env*\ndevops'

  writeFile(fileName, content)
}

function generateDockerFiles() {
  generateDockerIgnore()

  const fileName = 'Dockerfile'
  const content = `###################
# BUILD FOR LOCAL DEVELOPMENT
###################

FROM node:18-alpine As development

WORKDIR /usr/src/app

COPY --chown=node:node package*.json ./

RUN npm ci

COPY --chown=node:node . .

USER node

###################
# BUILD FOR PRODUCTION
###################

FROM node:18-alpine As build

WORKDIR /usr/src/app

COPY --chown=node:node package*.json ./

COPY --chown=node:node --from=development /usr/src/app/node_modules ./node_modules

COPY --chown=node:node . .

RUN npm run build

ENV NODE_ENV prod

RUN npm ci --only=production && npm cache clean --force

USER node

###################
# PRODUCTION
###################

FROM node:18-alpine As production

COPY --chown=node:node --from=build /usr/src/app/node_modules ./node_modules
COPY --chown=node:node --from=build /usr/src/app/dist ./dist

CMD [ "node", "dist/src/server.js" ]`

  writeFile(fileName, content)
  logWarning('You should change node:lts-alpine image to fixed NodeJS version.')
}

export async function generateConfigFiles() {
  console.log(
    MESSAGES.GENERATE_CONFIG_FILES(
      'prettier',
      'typescript',
      'docker',
      'eslint',
      'nodemon',
    ),
  )
  generatePrettierConfig()
  generateTsConfig()
  generateLinterFile()
  generateNodemonJson()
  generateDockerFiles()
  await generateGitFiles()
  logSuccess(MESSAGES.CONFIG_FILES_OK)
}