npm-run-posix-or-windows

This is a very lightweight and straightforward module that proposes a simple,
yet limited, solution to write portable NPM scripts when those have to work on
Windows too (the hell with Windows, hopefully someday all developers will be
working on Unix).

Use npm-run-posix-or-windows in NPM scripts to run an alternative script
when the script is run under Windows. When under Windows the script name is then
suffixed with :windows.

Usage:

 {
  "name": "some-package-name",
  "version": "1.0.0",
  "author": "SomeOne",
  "scripts": {
    "postinstall": "npm prune && npm-run-posix-or-windows postinstall:leveldown",
    "postinstall:leveldown": "cd node_modules/pouchdb/node_modules/leveldown && node-gyp rebuild --target=$npm_package_dependencies_electron_prebuilt --dist-url=https://atom.io/download/atom-shell",
    "postinstall:leveldown:windows": "cd node_modules/pouchdb/node_modules/leveldown && node-gyp rebuild --target=%npm_package_dependencies_electron_prebuilt% --dist-url=https://atom.io/download/atom-shell",
    "start": "electron ."
  },
  "dependencies": {
    "bluebird": "3.3.3",
    "electron-prebuilt": "0.36.7",
    "npm-run-posix-or-windows": "2.0.0",
    "pouchdb": "5.2.1"
  }
}