name: Determine pseudo version
description: "Determine go-like pseudo version to use as container image tag."
outputs:
  pseudo-version:
    description: "Pseudo version based on the current HEAD"
    value: ${{ steps.pseudo-version.outputs.pseudo-version }}
runs:
  using: 'composite'
  steps:
  - name: Install Go
    uses: actions/setup-go@84cbf8094393cdc5fe1fe1671ff2647332956b1a
    with:
      go-version: "1.18"
  - name: get pseudo version
    id: pseudo-version
    run: |
      set -e
      set -o pipefail
      if $(git rev-parse --is-shallow-repository); then
        git fetch --prune --unshallow --tags -v
      else
        git fetch --tags -v
      fi
      echo "::set-output name=pseudo-version::$(go run .)"
    working-directory: hack/pseudo-version
    shell: bash