name: CI

on:
  push:
    branches-ignore:
      - main

jobs:
  lint-test:
    name: Lint and test
    runs-on: ubuntu-latest
    container:
      image: golang:1.24-bookworm
    steps:
      - name: Checkout
        env:
          TOKEN: ${{ github.token }}
        run: |
          set -eu
          git init .
          if [ -n "${TOKEN:-}" ]; then
            server="${GITHUB_SERVER_URL#https://}"
            server="${server#http://}"
            git remote add origin "https://x-access-token:${TOKEN}@${server}/${GITHUB_REPOSITORY}.git"
          else
            git remote add origin "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git"
          fi
          git fetch --depth=1 origin "${GITHUB_SHA}"
          git checkout --detach FETCH_HEAD

      - name: Check formatting
        run: |
          files="$(gofmt -l .)"
          if [ -n "$files" ]; then
            echo "The following files need gofmt:"
            echo "$files"
            exit 1
          fi

      - name: Vet
        run: go vet ./...

      - name: Test
        run: go test ./...