checks/regex

The regex action checks whether a specific regular expression appears in its input. It is typically used to validate log or text output (e.g., looking for convergence messages, warnings, or specific patterns).

Example Usage

steps:
  - name: Produce output
    id: sim
    run: |
      echo This is some text
      echo Simulation completed successfully

  - uses: checks/regex
    with:
      input: ${{ steps.sim.output }}
      pattern: "Simulation completed successfully"

Arguments

input (string, required): Input that will be checked
pattern (string, required): The regular expression to match (interpreted using Python’s re module).

Notes

This action uses exact string matching (not float-aware); use checks/regex-float for numerical comparisons.
Useful for checking message logs, printed summaries, or warnings.