name: better-setup-golangci-lint
description: Install a pinned golangci-lint binary statically from its GitHub release asset — musl-safe, no GitHub API probe, Forgejo/act runner safe.
inputs:
  version:
    description: Exact golangci-lint version to install (x.y.z).
    required: true
runs:
  using: composite
  steps:
    - shell: bash
      run: |
        set -euo pipefail
        v="${{ inputs.version }}"
        case "$(uname -m)" in
          x86_64|amd64) arch=amd64 ;;
          aarch64|arm64) arch=arm64 ;;
          *) echo "better-setup-golangci-lint: unsupported arch $(uname -m)" >&2; exit 1 ;;
        esac
        curl --retry 3 --retry-delay 2 -fsSL -o /tmp/gcl.tgz \
          "https://github.com/golangci/golangci-lint/releases/download/v${v}/golangci-lint-${v}-linux-${arch}.tar.gz"
        tar -xzf /tmp/gcl.tgz -C /tmp "golangci-lint-${v}-linux-${arch}/golangci-lint"
        mv "/tmp/golangci-lint-${v}-linux-${arch}/golangci-lint" /usr/local/bin/golangci-lint
        rm -rf /tmp/gcl.tgz "/tmp/golangci-lint-${v}-linux-${arch}"
        golangci-lint version