@olegjs/on-change

on-change

CLI tool to run a command if file has changed since the last time that command was run.

Forgetting to run npm i every time after git pull and getting Error: Cannot find module...? Add the following to package.json to automate this chore.

{
  "scripts": {
    "prestart": "on-change --file package-lock.json npm ci"
  }
}

This CLI tool stores a file checksum in a hidden sha file every time it run a given command. Made to automate running npm ci after pulling modified package-lock.json.

Install

npm install --save-dev @olegjs/on-change

Usage

npx on-change --help
# Usage: on-file-change --file [file] [command]
#
# Options:
#   --help      Show help                                                [boolean]
#   --version   Show version number                                      [boolean]
#   --file, -f  Path to file to check for changes              [string] [required]
#
# Examples:
#   on-file-change --file package-lock.json   Reinstall dependencies on changed
#   npm ci                                    package-lock.json