Git & GitHub Interview Question #90

What does actions/checkout do in a GitHub Actions workflow?

GitHub Collaboration, Repository Rules, Issues, Releases & Actions CI/CD Mid-Level Intermediate

Quick Interview Answer

actions/checkout is an official GitHub action commonly used to place repository content into the runner's workspace so subsequent workflow steps can build, test, or inspect it.

Detailed Explanation

actions/checkout is an official GitHub action commonly used to place repository content into the runner's workspace so subsequent workflow steps can build, test, or inspect it.

Without checking out the repository, a job that expects local source files will not automatically have the normal working tree available. Checkout behavior can also be configured for history depth, branches, submodules, and other needs.

Code Example

steps:
  - name: Checkout repository
    uses: actions/checkout@v4

  - name: Build
    run: dotnet build