---
# yamllint disable rule:line-length
name: check Nix download buffer

on: # yamllint disable-line rule:truthy
  workflow_dispatch:

concurrency:
  group: check-nix-download-buffer
  cancel-in-progress: true

jobs:
  check:
    name: check Nix download buffer
    runs-on: gross-nix-x86-perf
    timeout-minutes: 20
    env:
      NIX_CONFIG: |
        fallback = false
        http2 = false
        extra-substituters = https://cache.nixos.org https://cache.hectic-lab.com/hectic
        trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hectic:KMQsKow4SoA9K2vOJlOljmx7/Zpf91Yy+5qEtxDDCzA=
    steps:
      - name: Inspect Nix client
        run: |
          set -eu
          nix --version
          nix config show download-buffer-size
          nix config show http2
          nix config show fallback
          nix config show substituters

      - name: Ping Attic cache
        run: |
          set -eu
          nix store ping --store https://cache.hectic-lab.com/hectic

      - name: Download small cache path
        run: |
          set -eu
          nix build --no-link --print-out-paths nixpkgs#hello