tessl/npm-nestjs--cli

Command-line interface tool for initializing, developing, and maintaining NestJS applications

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Overview

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Project Creation

Name: tessl/npm-nestjs--cli
Author: tessl

Create new NestJS applications with comprehensive customization options including language selection, package manager choice, and project structure configuration.

Capabilities

New Command

Creates a new NestJS application with the specified name and configuration options.

# Create new application
nest new [name] [options]
nest n [name] [options]

# Options:
--directory [directory]              # Specify the destination directory
-d, --dry-run                       # Report actions without writing results (default: false)
-g, --skip-git                      # Skip git repository initialization (default: false)  
-s, --skip-install                  # Skip package installation (default: false)
-p, --package-manager [manager]     # Specify package manager (npm, yarn, pnpm)
-l, --language [language]           # Programming language (TypeScript, JavaScript, ts, js)
-c, --collection [collectionName]   # Schematics collection to use (default: @nestjs/schematics)
--strict                           # Enable strict mode in TypeScript (default: false)

Usage Examples:

# Create a new app with default settings
nest new my-app

# Create app with custom directory
nest new my-app --directory ./projects

# Create JavaScript project with yarn
nest new my-app --language javascript --package-manager yarn

# Create project without git initialization
nest new my-app --skip-git

# Create project and skip package installation
nest new my-app --skip-install

# Create project with strict TypeScript mode
nest new my-app --strict

# Dry run to see what would be created
nest new my-app --dry-run

Language Options

Specify the programming language for your new project.

# TypeScript (default)
-l typescript
-l ts

# JavaScript  
-l javascript
-l js

Package Manager Options

Choose your preferred package manager for dependency management.

# NPM (default)
-p npm

# Yarn
-p yarn  

# PNPM
-p pnpm

Directory Structure

When creating a new project, the CLI generates the following structure:

my-app/
├── src/
│   ├── app.controller.spec.ts
│   ├── app.controller.ts
│   ├── app.module.ts
│   ├── app.service.ts
│   └── main.ts
├── test/
│   ├── app.e2e-spec.ts
│   └── jest-e2e.json
├── nest-cli.json
├── package.json
├── README.md
├── tsconfig.build.json
└── tsconfig.json

Schematics Collection

Specify which schematics collection to use for project generation.

# Default NestJS schematics
-c @nestjs/schematics

# Custom schematics collection
-c my-custom-schematics

Configuration Files Generated

nest-cli.json

Project configuration file defining build settings and project structure:

{
  "collection": "@nestjs/schematics",
  "sourceRoot": "src"
}

package.json Scripts

The generated package.json includes common development scripts:

{
  "scripts": {
    "build": "nest build",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json"
  }
}

Error Handling

The command validates language options and will throw an error for invalid languages:

# This will fail
nest new my-app --language python
# Error: Invalid language "python" selected. Available languages are "typescript" or "javascript"

docs

application-building.md

code-generation.md

development-server.md

index.md

library-integration.md

project-creation.md

project-information.md

tile.json

tessl/npm-nestjs--cli