cartouche 0.2.0

Encoding and decoding for HDMI InfoFrames.
Documentation 
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name: Fuzz

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main, develop]
  schedule:
    - cron: '0 2 * * 6'  # weekly, Saturday 02:00 UTC
  workflow_dispatch:       # allow manual trigger

env:
  CARGO_TERM_COLOR: always
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  fuzz:
    name: Fuzz (${{ matrix.target }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        target: [avi, audio, hdr_static, hdmi_forum_vsi, dynamic_hdr]

    steps:
      - uses: actions/checkout@v4

      - name: Install nightly toolchain
        uses: dtolnay/rust-toolchain@nightly

      - name: Install cargo-fuzz
        run: cargo install cargo-fuzz --locked

      - name: Restore corpus cache
        uses: actions/cache@v4
        with:
          path: fuzz/corpus/${{ matrix.target }}
          key: fuzz-corpus-${{ matrix.target }}-${{ github.sha }}
          restore-keys: fuzz-corpus-${{ matrix.target }}-

      - name: Fuzz (smoke, 60 s) — PRs and pushes
        if: github.event_name == 'push' || github.event_name == 'pull_request'
        run: cargo +nightly fuzz run ${{ matrix.target }} -- -max_total_time=60

      - name: Fuzz (deep, 1 h) — scheduled and manual
        if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
        run: cargo +nightly fuzz run ${{ matrix.target }} -- -max_total_time=3600

      - name: Minimise corpus
        if: success() && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
        run: cargo +nightly fuzz cmin ${{ matrix.target }}

      - name: Upload corpus artifact
        if: success() && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
        uses: actions/upload-artifact@v4
        with:
          name: fuzz-corpus-${{ matrix.target }}
          path: fuzz/corpus/${{ matrix.target }}/

      - name: Upload crash artifacts
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: fuzz-crash-${{ matrix.target }}
          path: fuzz/artifacts/${{ matrix.target }}/

  update-corpus:
    name: Update corpus
    needs: [fuzz]
    if: success() && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v4

      - name: Download all corpus artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: fuzz-corpus-*
          path: fuzz/corpus/
          merge-multiple: false

      - name: Flatten artifact subdirectories
        run: |
          for target in avi audio hdr_static hdmi_forum_vsi dynamic_hdr; do
            src="fuzz/corpus/fuzz-corpus-${target}"
            dst="fuzz/corpus/${target}"
            if [ -d "$src" ]; then
              mkdir -p "$dst"
              cp -r "$src/." "$dst/"
              rm -rf "$src"
            fi
          done

      - name: Open PR if corpus changed
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          branch: ci/fuzz-corpus
          commit-message: "ci: update fuzz corpus after deep run"
          title: "ci: update fuzz corpus after deep run"
          body: |
            Minimised corpus from the latest deep fuzz run. Covers all five targets:
            `avi`, `audio`, `hdr_static`, `hdmi_forum_vsi`, `dynamic_hdr`.

            *Opened automatically by the fuzz CI job.*
          add-paths: fuzz/corpus/