map-tile-toolkit 0.3.0

Clip integer polylines and polygons into per-tile pieces on a simple tile grid
Documentation 
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name: Fuzz

on:
  schedule:
    - cron: '0 3 * * *'  # nightly at 03:00 UTC
  workflow_dispatch:
    inputs:
      max_total_time:
        description: 'Max fuzzing time per target, in seconds'
        default: '600'

defaults:
  run: { shell: bash }

# A newer nightly run supersedes an in-flight one on the same ref.
concurrency:
  group: fuzz-${{ github.ref }}
  cancel-in-progress: true

jobs:
  fuzz:
    name: Fuzz ${{ matrix.target }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        target: [slice_equivalence, polygon_equivalence, point_equivalence]
    timeout-minutes: 30
    # Fuzzing should fail only on a crash/assertion, not on nightly-only lint drift (the justfile
    # otherwise treats warnings as errors under CI).
    env:
      CARGO_BUILD_WARNINGS: warn
    steps:
      - uses: actions/checkout@v7
      - name: Install nightly Rust (cargo-fuzz needs it)
        uses: dtolnay/rust-toolchain@stable
        with: { toolchain: nightly }
      - uses: taiki-e/install-action@v2.87.23
        with: { tool: 'just,cargo-binstall' }
      # Persist the corpus across runs so each night builds on prior coverage.
      - name: Cache fuzz corpus
        uses: actions/cache@v6
        with:
          path: fuzz/corpus
          key: fuzz-corpus-${{ matrix.target }}-${{ github.run_id }}
          restore-keys: fuzz-corpus-${{ matrix.target }}-
      - name: Fuzz for the configured time (fails on any crash/assertion)
        run: just fuzz ${{ matrix.target }} -- -max_total_time=${{ github.event.inputs.max_total_time || '600' }}
      # On a finding, cargo-fuzz drops a reproducer in fuzz/artifacts — keep it.
      - name: Upload crash reproducers
        if: failure()
        uses: actions/upload-artifact@v7
        with:
          name: fuzz-artifacts-${{ matrix.target }}
          path: fuzz/artifacts
          if-no-files-found: ignore