I'm using npm as a build tool and ran into the following issue with npm run and quoted parameters.

This is the interesting part of the "scripts" section in my package.json:

"scripts": {
  "test": "mochify",
  "cover": "npm run test -- --plugin [ mochify-istanbul --report cobertura --exclude '**/*.mustache' ]"
}

Running npm run cover prints this:

> npm run test -- --plugin [ mochify-istanbul --report cobertura --exclude '**/*.mustache' ]
...
> mochify --plugin [ mochify-istanbul --report cobertura --exclude **/*.mustache ]

You can see that **/*.mustache is quoted on the first line, but the quotes are removed on the second line. This causes the script to fail because I have to pass the glob expression as a plain string.

If I change the cover script to this:

"cover": "mochify --plugin [ mochify-istanbul --report cobertura --exclude '**/*.mustache' ]"

... calling npm run cover works fine and npm prints the quotes as expected:

> mochify --plugin [ mochify-istanbul --report cobertura --exclude '**/*.mustache' ]

Thanks for looking into it!