fuzz.yml

name: Fuzz

on:
  push:
  pull_request:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read

jobs:
  fuzz:
    name: Fuzz scanner
    runs-on: ubuntu-latest
    if: >-
      !github.event.repository.is_template &&
      github.event.head_commit.message != 'Initial commit'
    strategy:
      fail-fast: false
      matrix:
        language: [objectscript, udl, core]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
      - name: Check for scanner changes
        id: scanner-check
        shell: sh
        run: |-
          {
            ! git rev-parse HEAD^ >/dev/null 2>&1 && printf 'changed=true\n' ||
            ! git diff --quiet HEAD^ -- common/scanner.h &&
            printf 'changed=true\n' || printf 'changed=false\n'
          } >> "$GITHUB_OUTPUT"
      - name: Run fuzzer
        uses: tree-sitter/fuzz-action@v4
        if: steps.scanner-check.outputs.changed == 'true'
        with:
          directory: ${{matrix.language}}