[Feature] Add possibility to not raise if base and head sha are the same

[ovsds]

Is this feature missing in the latest version?

• I'm using the latest release

Is your feature request related to a problem? Please describe.

We are using in pipeline when sometimes it's expected that inputs.base_sha==inputs.sha, and we expect the result to be emptry on the next step.

Describe the solution you'd like?

Would be nice to have opportynity to overload result, or just pass the flag that allows not to raise error in that case.

Describe alternatives you've considered?

Now we use this workaround:

    - uses: tj-actions/changed-files@24d32ffd492484c1d75e0c0b894501ddb9d30d62
      id: changed-files-base
      if: ${{ steps.extract_base_commit.outputs.result != steps.extract_head_commit.outputs.result }}
      with:
        base_sha: ${{ steps.extract_base_commit.outputs.result }}
        sha: ${{ steps.extract_head_commit.outputs.result }}
        write_output_files: true
        separator: "\n"

    - name: Get changed files
      id: changed-files
      run: |
        if [ "$base_sha" != "$sha" ]; then
          {
            echo "all_changed_files<<EOF"
            echo "${changed_files_base}"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
        fi
      env:
        sha: ${{ steps.extract_head_commit.outputs.result }}
        base_sha: ${{ steps.extract_base_commit.outputs.result }}
        changed_files_base: ${{ steps.changed-files-base.outputs.all_changed_files }}

Anything else?

Code of Conduct

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