How can I use variables in my Travis CI scripts?

How can I use variables in my Travis CI scripts?

You can define variables in your .travis.yml file using the env key. For example, you can set environment variables like this:

env:
  global:
    - MY_VAR=value

Can I use these variables in my build steps?

Yes, you can reference these variables in your build steps using the syntax $MY_VAR. For example:

script:
  - echo $MY_VAR

What if I want to set different values for different branches?

You can set branch-specific environment variables using the branches key. Here's an example:

branches:
  only:
    - main
env:
  global:
    - MY_VAR=value_for_main
  matrix:
    - MY_VAR=value_for_other_branch

Is there a way to keep sensitive information secure?

Yes, you should use Travis CI's encrypted environment variables feature to keep sensitive data secure. You can encrypt your variables using the Travis CLI.