ci-python-zensical.yml

# ============================================================
# .github/workflows/ci-python-zensical.yml (Continuous Integration)
# ============================================================
# SOURCE: https://github.com/denisecase/templates
#
# WHY-FILE: Validate repository hygiene, python, and documentation builds.
# REQ: CI MUST NOT introduce arbitrary rules that are not reproducible locally.
# OBS: CI validates only; it should not edit files or deploy docs.

name: CI (Python + Zensical)

# WHY: Validate code, docs, and repo metadata on PRs and pushes.
# OBS: This workflow validates only; it never deploys.

on:
  push:
    branches: [main] # WHY: Run when pushing to main branch.
  pull_request:
    branches: [main] # WHY: Run on pull requests targeting main branch.
  workflow_dispatch: # WHY: Allow manual triggering from Actions tab.

permissions: # WHY: Use least privileges required.
  contents: read

env:
  PYTHONUNBUFFERED: "1" # WHY: Real-time logging.
  PYTHONIOENCODING: "utf-8" # WHY: Ensure UTF-8 encoding for international characters.

jobs:
  ci:
    name: Repository / Python checks and Zensical build
    runs-on: ubuntu-latest # WHY: Linux environment matches most production deployments
    timeout-minutes: 30 # WHY: Prevent hanging jobs. If over time, it is likely stuck.
    env:
      UV_PYTHON: "3.14" # WHY: Set Python version for all steps.

    steps:
      # ============================================================
      # ASSEMBLE: Get code and set up environment
      # ============================================================

      - name: A1) Checkout repository code
        # WHY: Needed to access files for checks.
        uses: actions/checkout@v6

      - name: A2) Install uv (with caching and uv.lock awareness)
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true # WHY: Speed up installs on subsequent runs
          cache-dependency-glob: "uv.lock" # WHY: Only re-cache when dependencies change

      - name: A3) Install Python 3.14 (no repo changes needed)
        run: uv python install 3.14

      - name: A4) Sync to install all dependencies
        run: uv sync --extra dev --extra docs --upgrade

      - name: A5) Show tool versions
        run: |
          uv --version
          uv run python --version
          if [ -f "zensical.toml" ]; then
            uv run zensical --version
          fi

      - name: A6) Run pre-commit (all files)
        run: uv tool run pre-commit run --all-files

      # ============================================================
      # === BASELINE CHECKS ===
      # ============================================================

      - name: B1) validate-pyproject (must be in pyproject.toml dependencies)
        run: uv run validate-pyproject pyproject.toml

      # ============================================================
      # === DEPLOY: Build only, don't deploy yet ===
      # ============================================================

      - name: D1) Build docs with Zensical
        run: |
          if [ -f "zensical.toml" ]; then
            uv run zensical build
          else
            echo "No zensical.toml config found; skipping docs build."
          fi