sqlite-diff-rs 0.2.0

Build SQLite changeset and patchset binary formats programmatically, without SQLite
Documentation 
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name: AddressSanitizer

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  CARGO_TERM_COLOR: always

jobs:
  asan:
    name: AddressSanitizer (memory + leaks)
    runs-on: ubuntu-latest
    env:
      # Instrument the Rust code, and (via -Zbuild-std below) a freshly rebuilt
      # standard library, with AddressSanitizer. AddressSanitizer bundles
      # LeakSanitizer, which reports allocations still live at process exit.
      RUSTFLAGS: -Zsanitizer=address
      # The crate itself contains no `unsafe`; the memory-safety surface is the
      # FFI path where tests apply changesets through rusqlite's bundled SQLite
      # C library. Instrument that C code too so any leak or corruption inside
      # SQLite gets an accurate stack trace instead of an anonymous frame.
      CFLAGS: -fsanitize=address -fno-omit-frame-pointer
      CXXFLAGS: -fsanitize=address -fno-omit-frame-pointer
      # Turn on leak detection and stack-use-after-return checking. A detected
      # leak makes the test binary exit non-zero, which fails the job.
      ASAN_OPTIONS: detect_leaks=1:detect_stack_use_after_return=1

    steps:
      - uses: actions/checkout@v6

      # ubuntu-24.04 runners ship vm.mmap_rnd_bits=32, which collides with
      # AddressSanitizer's shadow memory layout ("Shadow memory range
      # interleaves with an existing memory mapping"). Lowering ASLR entropy
      # restores a layout ASan can use.
      - name: Relax ASLR entropy for AddressSanitizer
        run: sudo sysctl -w vm.mmap_rnd_bits=28

      # rust-src is required so -Zbuild-std can recompile the standard library
      # with the sanitizer enabled.
      - name: Install Rust nightly with rust-src
        uses: dtolnay/rust-toolchain@nightly
        with:
          components: rust-src

      - name: Cache cargo registry and build
        uses: Swatinem/rust-cache@v2
        with:
          key: asan

      # Passing --target (even though it matches the host) keeps RUSTFLAGS off
      # build scripts and proc-macros, which must stay uninstrumented. --lib and
      # --tests cover the library and integration tests; doctests are skipped as
      # they link unreliably under -Zbuild-std with the sanitizer.
      - name: Run tests under AddressSanitizer
        run: |
          cargo test -p sqlite-diff-rs --all-features --lib --tests \
            -Zbuild-std --target x86_64-unknown-linux-gnu