How can I configure Travis CI for multiple programming languages?

How can I configure Travis CI for multiple programming languages?

To configure Travis CI for multiple languages, you can specify the languages in your .travis.yml file. For example, you can use the language key to define the primary language and then use matrix to include additional languages.

Can you show me an example of a .travis.yml file for Python and Node.js?

Sure! Here's an example:

language: python
python:
  - "3.8"
  - "3.9"

jobs:
  include:
    - language: node_js
      node_js:
        - "14"
        - "16"

What if I need to run different scripts for each language?

You can use the script key within each job to specify different commands. For example:

jobs:
  include:
    - language: python
      script: python -m unittest
    - language: node_js
      script: npm test

Is there a way to cache dependencies for faster builds?

Yes, you can use the cache key in your .travis.yml file to cache dependencies. For example:

cache:
  directories:
    - ~/.cache/pip
    - node_modules