ci-backend.yml

name: CI Backend

on:
  workflow_dispatch:
  pull_request:
    paths-ignore:
      - "ui/**"
  push:
    branches:
      - main

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

permissions:
  contents: read

jobs:
  backend:
    runs-on: ubuntu-latest
    timeout-minutes: 20
    env:
      RUST_LOG: "off"
      # This workspace links ~24 separate integration-test binaries against a
      # heavy dependency tree (tokio, hyper, rustls, opentelemetry,
      # aws-lc-sys, ...) -- lld is meaningfully faster than the default bfd
      # linker for that many large links, with no behavior change. Scoped to
      # CI only; local dev toolchains are untouched.
      RUSTFLAGS: "-C link-arg=-fuse-ld=lld"
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Update Rust toolchain
        run: rustup update stable

      - name: Install lld linker
        run: sudo apt-get update && sudo apt-get install -y lld

      - name: Cache Rust dependencies
        uses: Swatinem/rust-cache@v2
        with:
          shared-key: "ci"

      - name: Install Rust components
        run: rustup component add rustfmt clippy

      - name: Cargo fmt check
        run: cargo fmt --all -- --check

      - name: Install cntryl-tools
        run: cargo install --locked --git https://github.com/cntryl/tools --rev 0cb0d0c8be5951753580a6f8a527f3e47d293466 cntryl-tools

      - name: Validate repository policy
        run: |
          cntryl-tools validate-docs --config .cntryl/repository.toml
          cntryl-tools validate-benchmarks --config .cntryl/repository.toml
          cntryl-tools check-module-sizes --config .cntryl/repository.toml

      - name: Cargo check
        run: cargo check --locked

      - name: Cargo clippy pedantic
        run: cargo clippy --locked --workspace --all-targets --all-features -- -D warnings -D clippy::pedantic

      - name: Build tests
        run: cargo test --no-run --locked --workspace

      - name: Run tests
        env:
          FITZ_TEST_TIMEOUT_MULTIPLIER: "10"
        run: cargo test --locked --workspace

      - name: Stateful model tests (seed variation 1)
        env:
          PROPTEST_CASES: "256"
        run: cargo test --locked --lib state_model

      - name: Stateful model tests (seed variation 2)
        env:
          PROPTEST_CASES: "256"
        run: cargo test --locked --lib state_model

      - name: Parallel library tests
        env:
          FITZ_TEST_TIMEOUT_MULTIPLIER: "10"
        run: cargo test --locked --lib -- --test-threads=16