ldcp (low dependency cp)

Why? Because a popular cp clone in node is 46k lines of JavaScript and 197 dependencies!

This one is 148 lines and has no dependencies.

It tries to do the same as cp though it only supports the -R option.

What's the point?

I needed to copy a file as part of my build. I can't use cp because that's not cross platform (doesn't work on Windows). I'm usually on MacOS but I also run Windows and have friends that do dev on Windows. I could have used grunt and grunt-contrib-copy or some other giant build framework but I just wanted to add an inline script in package.json like

"scripts": {
  "build": "rollup && ldcp somefile dist/somefile"
}

I went looking for an existing solution. I'm sure it exists but the first one I found was very popular and also 450k lines of dependencies. Ridiculous! I actually solved the issue, copying a single file, with a 4 line .js file but just for fun I thought I'd see how much work it would be to write a small cp clone. This is result.

Installation

npm install ldcp

Usage

ldcp [-R] src_file dst_file
lcdp [-R] src_file ... dst_directory

options

• -R recursive copy

• --dry-run show what it would do

• --verbose print what it's doing

Like cp

• with just 2 arguments, copies a single file from src to dst

• with -R if the source ends with / it copies the contents of source

  In other words assume you have

  +-abc
  | +-def.txt
  | +-ghi.txt
  +-xyz
  

  then

  ldcp -R abc xyz
  

  results in

  +-abc
  | +-def.txt
  | +-ghi.txt
  xyz
    +--abc
       +--def.txt
       +--ghi.txt
  

  where as

  ldcp -R abc/ xyz
  

  results in

  +-abc
  | +-def.txt
  | +-ghi.txt
  +-xyz
    +--def.txt
    +--ghi.txt
  

  if xyz does not exist

  then

  ldcp -R abc xyz
  

  results in

  +-abc
  | +-def.txt
  | +-ghi.txt
  xyz
    +--def.txt
    +--ghi.txt
  

  where as

  ldcp -R abc/ xyz
  

  results in

  +-abc
  | +-def.txt
  | +-ghi.txt
  +-xyz
    +--def.txt
    +--ghi.txt
  

API

const ldcp = require('ldcp');

ldcp(['src'], 'dst', {recurse: true});

or

const fs = require('fs');
const ldcp = require('ldcp');

const api = {
  copyFileSync(...args) { return fs.copyFileSync(...args) },
  mkdirSync(...args) { return fs.mkdirSync(...args); },
  statSync(...args) { return fs.statSync(...args); },
  readdirSync(...args) { return fs.readdirSync(...args); },
  log(..args) { console.log(...args); },
};
ldcp(['src'], 'dst', {recurse: true}, api);