A utility to copy client-side dependencies into a folder. It looks for a vendorCopy field in your package.json, which contains an array of objects, each with a to and from field, which are paths relative to the package.json file.

The CLI looks for configuration in a package.json file. It assumes that it's being run from the same directory as the package file. This makes it ideal to use as an npm script in the package file. For example (note in particular the postinstall script):

{
  "scripts": {
    "preinstall": "rimraf public/vendor"
    "postinstall": "vendor-copy"
  },
  "dependencies": {
    "someDependency": "1.0.0",
    "someOtherDependency": "0.1.2",
    "vendorCopy": "1",
    "rimraf": "2"
  },
  "devDependencies": {
    "someDevelopmentDependency": "4.3.2"
  },
  "vendorCopy": [
    {
      "from": "node_modules/someDependency/someDependency.js",
      "to": "public/vendor/someDependency.js"
    },
    {
      "from": "node_modules/someOtherDependency/someOtherDependency.js",
      "to": "public/vendor/someOtherDependency.js"
    }
  ],
  "devVendorCopy": [
    {
      "from": "node_modules/someDevelopmentDependency/someDevelopmentDependency.js",
      "to": "public/vendor/someDevelopmentDependency.js"
    }
  ]
}

When npm install is used and has completed the installation of both dependencies and development dependencies, it will copy items listed in "vendorCopy" and "devVendorCopy". When run in production mode, i.e. when the NODE_ENV environment variable is production or when npm in invoked with the --production flag, only items in vendorCopy are copied. In both cases rimraf has been used to delete the public/vendor to ensure a clean copy.

const vendorCopy = require('vendor-copy');

• root is an absolute base path.
• copyItems is an array of objects with from and to file paths.

root is prepended to all from and to paths. Each from resolves to a file or directory, and will be copied to the to location. Intermediate directories will be created as required.

The returned promise resolves when copying is complete. The resolution value is an array like copyItems, but each from and to field is an absolute path.