name: better-setup-deadcode
description: Install a pinned golang.org/x/tools deadcode binary via go install (requires Go on PATH) — no package manager needed, Forgejo/act runner safe.
inputs:
  version:
    description: Exact golang.org/x/tools version (vX.Y.Z) providing cmd/deadcode.
    required: true
runs:
  using: composite
  steps:
    - shell: bash
      run: |
        set -euo pipefail
        GOBIN=/usr/local/bin go install "golang.org/x/tools/cmd/deadcode@${{ inputs.version }}"
        deadcode -h >/dev/null 2>&1 || true   # help exits nonzero; the install is what we verify