codec/.github/workflows/fuzz.yml at main · reallyme/codec · GitHub

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# SPDX-FileCopyrightText: Copyright © 2026 ReallyMe LLC. All rights reserved
#
# SPDX-License-Identifier: Apache-2.0

name: Fuzz

on:
  pull_request:
    paths:
      - ".github/workflows/fuzz.yml"
      - "Cargo.toml"
      - "crates/codec/**"
      - "crates/proto/**"
      - "fuzz/**"
  push:
    branches:
      - main
    paths:
      - ".github/workflows/fuzz.yml"
      - "Cargo.toml"
      - "crates/codec/**"
      - "crates/proto/**"
      - "fuzz/**"
  schedule:
    - cron: "37 3 * * 1"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build:
    name: fuzz target build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

      - name: Install Rust nightly
        uses: dtolnay/rust-toolchain@fa04a1451ff1842e2626ccb99004d0195b455a88 # master
        with:
          toolchain: nightly-2026-07-01

      - name: Install cargo-fuzz
        run: cargo install --git https://github.com/rust-fuzz/cargo-fuzz.git --rev 984c861c8dfea28055254c5f1d2659ab2cd63f76 --locked cargo-fuzz

      - name: Build fuzz targets
        run: cargo +nightly-2026-07-01 fuzz build

  scheduled:
    name: scheduled fuzz (${{ matrix.target }})
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
    strategy:
      fail-fast: false
      matrix:
        target:
          - base64url
          - dag_cbor
          - deterministic_cbor
          - multibase
          - multicodec
          - multikey
          - operation_contract
          - jcs_text
    steps:
      - name: Checkout
        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

      - name: Install Rust nightly
        uses: dtolnay/rust-toolchain@fa04a1451ff1842e2626ccb99004d0195b455a88 # master
        with:
          toolchain: nightly-2026-07-01

      - name: Install cargo-fuzz
        run: cargo install --git https://github.com/rust-fuzz/cargo-fuzz.git --rev 984c861c8dfea28055254c5f1d2659ab2cd63f76 --locked cargo-fuzz

      - name: Run time-boxed fuzz target
        run: cargo +nightly-2026-07-01 fuzz run ${{ matrix.target }} -- -max_total_time=300 -rss_limit_mb=4096

      - name: Upload crash artifacts
        if: failure()
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: fuzz-artifacts-${{ matrix.target }}
          path: fuzz/artifacts/${{ matrix.target }}
          if-no-files-found: ignore