Does travis install npm packages globally or locally by running the tests?

Question

By default does travis install npm packages using package.json globally or locally? By some packages there can be differences, that's why I am asking.

Answer 1

The npm install command will install them locally. (If you read the log expanding the git clone ... part, you'll see that it cd username/repo then it will launch the npm install command).

If you need some packages installed globally, add this to your .travis.yml file:

before_install:
- npm install -g your-package-name