ci.yml

name: CI Build and Test

on:
  push:
    branches:
      - main
      - cicd
  pull_request:
    branches:
      - main
  workflow_run:
    workflows: ["Build and Push CI Docker Image"]
    types:
      - completed

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}-ci

jobs:
  compile:
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/${{ github.repository }}-ci:latest
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    env:
      # The image already provides the venv, so dimwit must not try to `uv sync` on top of it.
      DIMWIT_SKIP_SYNC: "true"

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Cache SBT dependencies
        uses: actions/cache@v4
        with:
          path: |
            ~/.sbt
            ~/.ivy2/cache
            ~/.cache/coursier
          key: ${{ runner.os }}-sbt-${{ hashFiles('**/build.sbt', 'project/**') }}
          restore-keys: |
            ${{ runner.os }}-sbt-

      # TEMPORARY: dimwit 0.2-SNAPSHOT is not published to any remote yet, so CI builds it from
      - name: Check out dimwit
        uses: actions/checkout@v4
        with:
          repository: dimwit-dev/dimwit
          ref: main
          path: dimwit

      # The version is pinned here to what build.sbt depends on, so a version bump on dimwit's
      # main cannot silently leave this build resolving a stale snapshot.
      - name: Publish dimwit-core to the local ivy repo
        working-directory: dimwit
        run: sbt publishLocal

      - name: Check formatting
        run: sbt scalafmtCheckAll

      - name: Compile core module
        run: sbt "project core" compile

      # `examples` depends on plotwit, which is not published yet, so it cannot be built
      # on a runner. Re-enable this once plotwit is available from a remote resolver.
      # - name: Compile examples module
      #   run: sbt "project examples" compile

      - name: Check unused imports (scalafix)
        run: sbt "core/scalafixAll --check"

      - name: Check if docsRoot is up to date
        run: sbt "docsRoot/mdoc --check"

      - name: Run tests
        run: sbt core/test