name: Install test

# Builds the ISO a pull request produces, installs it unattended in a KVM
# guest, boots the installed system again, and reports how long the install
# and both boots took. Every later change to the installer is measured
# against these numbers in its own PR.

on:
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: install-test-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  install:
    runs-on: ubuntu-24.04
    timeout-minutes: 75
    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5

      # The hosted runner has far more disk than the build needs (145 GB,
      # ~86 GB free); fail early and loudly if that ever changes.
      - name: Check disk space
        run: |
          df -h /
          avail_gb=$(df -BG --output=avail / | tail -1 | tr -dc 0-9)
          [ "$avail_gb" -ge 40 ] || { echo "::error::only ${avail_gb} GB free, the ISO build and install test need ~40 GB"; exit 1; }

      - name: Prepare the runner for KVM guests
        run: |
          sudo apt-get update -qq
          sudo apt-get install -y -qq --no-install-recommends \
            qemu-system-x86 qemu-utils ovmf socat imagemagick \
            tesseract-ocr tesseract-ocr-eng mtools dosfstools jq openssh-client
          # test/integration installs its tools through Omarchy's Arch helper;
          # they are installed above.
          printf '#!/bin/sh\nexit 0\n' | sudo tee /usr/local/bin/omarchy-pkg-add >/dev/null
          sudo chmod 0755 /usr/local/bin/omarchy-pkg-add
          # Keep the harness's Arch paths: map Ubuntu's OVMF files onto them.
          sudo install -d /usr/share/edk2/x64
          sudo ln -sf "$(find /usr/share -name 'OVMF_CODE_4M.fd' -print -quit)" /usr/share/edk2/x64/OVMF_CODE.4m.fd
          sudo ln -sf "$(find /usr/share -name 'OVMF_VARS_4M.fd' -print -quit)" /usr/share/edk2/x64/OVMF_VARS.4m.fd
          # Ubuntu's ImageMagick 6 is `convert`; the harness calls `magick`.
          command -v magick >/dev/null || sudo ln -sf "$(command -v convert)" /usr/local/bin/magick
          sudo chmod 0666 /dev/kvm
          nproc; free -h; qemu-system-x86_64 --version | head -1

      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4

      - name: Build the ISO
        run: NO_BOOT_OFFER=1 ./bin/omarchy-iso-make

      - name: Install unattended, then boot the installed system
        env:
          OMARCHY_INTEGRATION_DISK_CACHE: none
        run: ./test/integration release/*.iso boot --no-preview --memory 8192 --timeout 1800

      - name: Report times
        if: always()
        run: |
          base=$(ls -d test-runs/*-integration 2>/dev/null | head -1)
          [ -n "$base" ] || { echo "No test run to report" >> "$GITHUB_STEP_SUMMARY"; exit 0; }
          {
            echo "## Install test"
            echo
            if [ -f "$base/omarchy-install-timing.json" ]; then
              jq -r '"**Install:** \((.finished_at - .started_at) * 10 | round / 10) s across \(.phases | length) phases"' "$base/omarchy-install-timing.json"
              echo
              echo "| Phase | Seconds |"
              echo "| --- | ---: |"
              jq -r '.phases[] | "| \(.name) | \(.elapsed * 10 | round / 10) |"' "$base/omarchy-install-timing.json"
              echo
            fi
            if [ -f "$base/first-boot-systemd-analyze.txt" ]; then
              echo "**First boot:** $(head -1 "$base/first-boot-systemd-analyze.txt")"
              echo
            fi
            boot_dir=$(ls -d "$base"/runs/*-boot 2>/dev/null | tail -1)
            if [ -n "$boot_dir" ] && [ -f "$boot_dir/systemd-analyze.txt" ]; then
              echo "**Everyday boot:** $(head -1 "$boot_dir/systemd-analyze.txt")"
              echo
              echo "System state: $(jq -r .system_state "$boot_dir/boot-timing.json" 2>/dev/null)"
            fi
          } >> "$GITHUB_STEP_SUMMARY"

      - name: Upload test artifacts
        if: always()
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
        with:
          name: install-test-${{ github.run_id }}-${{ github.run_attempt }}
          path: |
            test-runs/*/omarchy-install-timing.json
            test-runs/*/omarchy-install.log
            test-runs/*/first-boot-systemd-analyze.txt
            test-runs/*/runs/**/*.png
            test-runs/*/runs/**/*.txt
            test-runs/*/runs/**/*.json
            test-runs/*/runs/**/*.log
          if-no-files-found: ignore
          retention-days: 14