Introduction to npm-run-all

npm-run-all is a CLI tool to run multiple npm scripts sequentially or in parallel.

Basic Usage

This command runs scripts sequentially:

npx npm-run-all clean build

Parallel Runs

To run scripts in parallel:

npx npm-run-all --parallel lint test

Continuation on Failure

Useful when certain scripts need to continue even after failure:

npx npm-run-all --continue-on-error build deploy

Running Tasks with Patterns

Runs all tasks that match a specified pattern:

npx npm-run-all \'@test:*\'

App Example

Below is an example app that uses several npm-run-all APIs:

  {
  "scripts": {
    "clean": "rimraf dist",
    "build:js": "babel src -d dist",
    "build:css": "sass src:dist",
    "build": "npm-run-all clean build:*",
    "test:unit": "jest",
    "test:integration": "mocha",
    "test": "npm-run-all --parallel test:*",
    "start:dev": "node server.js",
    "start": "npm-run-all build start:dev",
    "deploy": "firebase deploy"
  }
}  

With the above setup, you can automate clean, build, tests, start, and deploy tasks with ease using npm-run-all.

Advanced Usage with Configuration Files

Use a configuration file for more complex scenarios:

 {
  "scripts": {
    "task1": "echo 'Task 1'",
    "task2": "echo 'Task 2'",
    "task3": "echo 'Task 3'",
    "start": "npm-run-all --config myconfig.json"
  }
} 
 myconfig.json:
  {
  "configs": {
    "dev": {
      "script1": "npm-run-all task1 task2",
      "script2": "npm-run-all task2 task3"
    }
  }
}  

With this configuration, you can easily manage complex workflows using npm-run-all.

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