steps:
- uses: actions/checkout@v1

- run: mkdir -p path/to/artifact

- run: echo hello > path/to/artifact/world.txt

- uses: actions/upload-artifact@v1
  with:
    name: my-artifact
    path: path/to/artifact

To upload artifacts only when the previous step of a job failed, use if: failure():

- uses: actions/upload-artifact@v1
  if: failure()
  with:
    name: my-artifact
    path: path/to/artifact

Where does the upload go?

In the top right corner of a workflow run, once the run is over, if you used this action, there will be a Artifacts dropdown which you can download items from. Here's a screenshot of what it looks like

There is a trash can icon that can be used to delete the artifact. This icon will only appear for users who have write permissions to the repository.

License

The scripts and documentation in this project are released under the MIT License