name: "Nix build"

on:
  workflow_call:
    inputs:
      flake-output:
        type: string
        default: "default"
      cachix-filter:
        type: string
        default: ""

jobs:
  nix-build:
    timeout-minutes: 60
    name: (${{ matrix.system.os }}) Nix Build
    continue-on-error: true # TODO: remove when we want this to start blocking CI
    strategy:
      fail-fast: false
      matrix:
        system:
          - os: x86 Linux
            runner: buildjet-16vcpu-ubuntu-2204
            install_nix: true
          - os: arm Mac
            runner: [macOS, ARM64, test]
            install_nix: false
    if: github.repository_owner == 'zed-industries'
    runs-on: ${{ matrix.system.runner }}
    env:
      ZED_CLIENT_CHECKSUM_SEED: ${{ secrets.ZED_CLIENT_CHECKSUM_SEED }}
      ZED_CLOUD_PROVIDER_ADDITIONAL_MODELS_JSON: ${{ secrets.ZED_CLOUD_PROVIDER_ADDITIONAL_MODELS_JSON }}
      GIT_LFS_SKIP_SMUDGE: 1 # breaks the livekit rust sdk examples which we don't actually depend on
    steps:
      - name: Checkout repo
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
        with:
          clean: false

      # on our macs we manually install nix. for some reason the cachix action is running
      # under a non-login /bin/bash shell which doesn't source the proper script to add the
      # nix profile to PATH, so we manually add them here
      - name: Set path
        if: ${{ ! matrix.system.install_nix }}
        run: |
          echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
          echo "/Users/administrator/.nix-profile/bin" >> "$GITHUB_PATH"

      - uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
        if: ${{ matrix.system.install_nix }}
        with:
          github_access_token: ${{ secrets.GITHUB_TOKEN }}

      - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
        with:
          name: zed
          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
          pushFilter: "${{ inputs.cachix-filter }}"
          cachixArgs: "-v"

      - run: nix build .#${{ inputs.flake-output }} -L --accept-flake-config

      - name: Limit /nix/store to 50GB on macs
        if: ${{ ! matrix.system.install_nix }}
        run: |
          if [ "$(du -sm /nix/store | cut -f1)" -gt 50000 ]; then
            nix-collect-garbage -d || true
          fi
