action.yml

name: 'Repeat Action'
description: 'Repeat given command n times or until succeeds'
inputs:
  command:
    description: 'Command to execute'
    required: true
  count:
    description: 'Count of repetitions'
    required: false
    default: 1
outputs:
  status:
    description: "Exit value of the command (error if no execution was successful)"
    value: ${{ steps.repeat.outputs.status }}
runs:
  using: "composite"
  steps:
    - name: Run action
      id: repeat
      shell: bash
      run: |
        for i in $(seq 1 ${{ inputs.count }});
        do
            echo "$i: ${{ inputs.command }}"
            { ${{ inputs.command }} ; status=$?; } || true
            echo "$i: status=$status"
            if [[ "$status" -eq 0 ]]
            then
                break
            fi
        done
        echo "statusr=$status" >> $GITHUB_OUTPUT