I wanted to ensure that when this template repository was used to create a new repo that repo would have a specific set of labels.
\nHere's the workflow I came up with, saved as .github/workflows/ensure_labels.yml:
name: Ensure labels\non: [push]\n\njobs:\n ensure_labels:\n runs-on: ubuntu-latest\n steps:\n - name: Create labels\n uses: actions/github-script@v6\n with:\n script: |\n try {\n await github.rest.issues.createLabel({\n ...context.repo,\n name: 'captions'\n });\n await github.rest.issues.createLabel({\n ...context.repo,\n name: 'whisper'\n });\n } catch(e) {\n // Ignore if labels exist already\n }This creates captions and whisper labels, if they do not yet exist.
It's wrapped in a try/catch so that if the labels exist already (as they will on subsequent runs) the error can be ignored.
Note that you need to use await ... inside that try/catch block or exceptions thrown by those methods will still cause the action run to fail.
The ...context.repo trick saves on having to pass owner and repo explicitly.