ci.yml

name: CI

on:
  pull_request:
  push:
    branches:
      - main
  schedule:
    - cron: '17 7 * * 1-5'  # run once per day Monday-Friday at 7:17am

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  RUST_BACKTRACE: 1
  CARGO_TERM_COLOR: always
  CARGO_TERM_VERBOSE: 'true'

jobs:
  ci-everything:
    name: All CI stages
    runs-on: ubuntu-latest
    needs:
      - lint
      - rust-tests
      - cross-version-caching
      - cross-feature-caching
      - run-on-rust-libp2p
      - run-on-libp2p-dcutr-relay
      - run-on-libp2p-gossipsub-request-response
      - run-on-libp2p-uds
      - run-on-libp2p-whose-dependency-has-warnings
      - run-on-core-graphics
      - run-on-bevy-core
      - run-on-bevy-gltf
      - run-on-clap
      - run-on-sqllogictest
      - run-on-ref-slice-fork
      - run-on-ref-slice-fork-windows
      - run-on-tokio-explicit
      - run-on-tokio-implicit
      - run-on-perf-event-open-sys2
      - fails-on-too-old-rustc
    if: ${{ success() || failure() }}  # Run this job even if a dependency has failed.
    steps:
      - name: Job outcomes
        run: |
          echo "lint: ${{ needs.lint.result }}"
          echo "rust-tests: ${{ needs.rust-tests.result }}"
          echo "cross-version-caching: ${{ needs.cross-version-caching.result }}"
          echo "cross-feature-caching: ${{ needs.cross-feature-caching.result }}"
          echo "run-on-rust-libp2p: ${{ needs.run-on-rust-libp2p.result }}"
          echo "run-on-libp2p-dcutr-relay: ${{ needs.run-on-libp2p-dcutr-relay.result }}"
          echo "run-on-libp2p-gossipsub-request-response: ${{ needs.run-on-libp2p-gossipsub-request-response.result }}"
          echo "run-on-libp2p-uds: ${{ needs.run-on-libp2p-uds.result }}"
          echo "run-on-libp2p-whose-dependency-has-warnings: ${{ needs.run-on-libp2p-whose-dependency-has-warnings.result }}"
          echo "run-on-core-graphics: ${{ needs.run-on-core-graphics.result }}"
          echo "run-on-bevy-core: ${{ needs.run-on-bevy-core.result }}"
          echo "run-on-bevy-gltf: ${{ needs.run-on-bevy-gltf.result }}"
          echo "run-on-clap: ${{ needs.run-on-clap.result }}"
          echo "run-on-sqllogictest: ${{ needs.run-on-sqllogictest.result }}"
          echo "run-on-ref-slice-fork: ${{ needs.run-on-ref-slice-fork.result }}"
          echo "run-on-ref-slice-fork-windows: ${{ needs.run-on-ref-slice-fork-windows.result }}"
          echo "run-on-tokio-explicit: ${{ needs.run-on-tokio-explicit.result }}"
          echo "run-on-tokio-implicit: ${{ needs.run-on-tokio-implicit.result }}"
          echo "run-on-perf-event-open-sys2: ${{ needs.run-on-perf-event-open-sys2.result }}"
          echo "fails-on-too-old-rustc: ${{ needs.fails-on-too-old-rustc.result }}"

      # Fail this required job if any of its dependent jobs have failed.
      #
      # Do not attempt to consolidate these steps into one step, it won't work.
      # Multi-line `if` clauses are not evaluated properly: see the intermediate commits in
      # https://github.com/obi1kenobi/cargo-semver-checks/pull/405
      - if: ${{ needs.lint.result != 'success' }}
        run: exit 1
      - if: ${{ needs.rust-tests.result != 'success' }}
        run: exit 1
      - if: ${{ needs.cross-version-caching.result != 'success' }}
        run: exit 1
      - if: ${{ needs.cross-feature-caching.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-rust-libp2p.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-libp2p-dcutr-relay.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-libp2p-gossipsub-request-response.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-libp2p-uds.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-libp2p-whose-dependency-has-warnings.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-core-graphics.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-bevy-core.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-bevy-gltf.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-clap.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-sqllogictest.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-ref-slice-fork.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-ref-slice-fork-windows.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-tokio-explicit.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-tokio-implicit.result != 'success' }}
        run: exit 1
      - if: ${{ needs.run-on-perf-event-open-sys2.result != 'success' }}
        run: exit 1
      - if: ${{ needs.fails-on-too-old-rustc.result != 'success' }}
        run: exit 1

  lint:
    name: Check lint and rustfmt
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Install rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          components: rustfmt, clippy
          cache: false
          rustflags: ""

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: 'semver'

      # Ensure we include all new non-default features here explicitly, except for
      # pass-through mutually-exclusive features from our dependencies such as:
      # https://github.com/obi1kenobi/cargo-semver-checks/pull/824
      #
      # Ideally, one day we'd be able to do something like "`--all-features` except feature X":
      # https://github.com/rust-lang/cargo/issues/3126
      - name: cargo clippy
        run: cargo clippy --manifest-path semver/Cargo.toml --workspace --all-targets --no-deps -- -D warnings --allow deprecated

      - name: cargo fmt
        run: cargo fmt --manifest-path semver/Cargo.toml -- --check

      # Ensure we include all new non-default features here explicitly, except for
      # pass-through mutually-exclusive features from our dependencies such as:
      # https://github.com/obi1kenobi/cargo-semver-checks/pull/824
      #
      # Ideally, one day we'd be able to do something like "`--all-features` except feature X":
      # https://github.com/rust-lang/cargo/issues/3126
      - name: cargo doc
        env:
          RUSTDOCFLAGS: -D warnings
        run: cargo doc --manifest-path semver/Cargo.toml --workspace --no-deps --document-private-items

  rust-tests:
    name: Run tests
    runs-on: ubuntu-latest
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      matrix:
        # IMPORTANT: When updating the versions here, make sure you also update
        #            the `fails-on-too-old-rustc` job and its error message to
        #            to account for the raised minimum required version.
        #
        #            Also make sure to update the MSRV in the cargo-semver-checks-action CI:
        #            https://github.com/obi1kenobi/cargo-semver-checks-action/blob/main/.github/workflows/test-action.yml#L18
        toolchain: ["1.77", "1.78", "1.79", "stable", "beta"]
        experimental: [false]
        include:
          - toolchain: "nightly"
            experimental: true
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: ${{ matrix.toolchain }}
          rustflags: ""
          cache: false

      - name: restore test rustdocs
        id: cache-test-rustdocs
        uses: actions/cache@v4
        with:
          path: semver/localdata/test_data/
          key: test-rustdocs-${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/test_crates/**/*.rs') }}

      - name: Regenerate test data
        if: steps.cache-test-rustdocs.outputs.cache-hit != 'true'
        run: |
          cd semver
          ./scripts/regenerate_test_rustdocs.sh +${{ matrix.toolchain }}

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: 'semver'

      - name: compile
        run: |
          cd semver
          cargo test --no-run

      - name: test
        run: |
          cd semver
          cargo test

  build-binary:
    name: Build binary
    runs-on: ubuntu-latest
    env:
      CARGO_INCREMENTAL: 0
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Install rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          rustflags: ""
          cache: false

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: 'semver'

      - name: Set up sccache
        uses: mozilla-actions/sccache-action@v0.0.5

      - name: build and cache
        run: |
          cd semver

          sccache --zero-stats
          cargo build
          sccache --show-stats

          mkdir ../bins
          mv target/debug/cargo-semver-checks ../bins/cargo-semver-checks

      - name: cache binary
        uses: actions/cache/save@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}

  build-binary-windows:
    # It could be easily combined into a single job with build-binary using the
    # matrix strategy, but it is not a good idea. Building the tool on Windows
    # is much slower and if the matrix strategy is used, there is currently no
    # supported by GitHub Actions way to depend only on a single case. It means
    # all semver checks below would have to wait before both binaries are built,
    # which would make whole CI last longer.
    name: Build binary (Windows)
    runs-on: windows-latest
    env:
      CARGO_INCREMENTAL: 0
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Install rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          rustflags: ""
          cache: false

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: 'semver'

      - name: Set up sccache
        uses: mozilla-actions/sccache-action@v0.0.5

      - name: build and cache
        run: |
          cd semver

          sccache --zero-stats
          cargo build
          sccache --show-stats

          mkdir ..\bins
          mv target\debug\cargo-semver-checks.exe ..\bins\cargo-semver-checks.exe

      - name: cache binary
        uses: actions/cache/save@v4
        with:
          path: bins\
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}

  cross-version-caching:
    # Ensure that cached rustdoc JSON files from an mismatched rustdoc version
    # are transparently cleared and overwritten with the rustdoc version from the current toolchain.
    # Fixes: https://github.com/obi1kenobi/cargo-semver-checks/issues/415
    name: 'Caching across rustdoc versions'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    env:
      OLDER_RUST: "1.74"  # Rust 1.74 uses rustdoc v27
      NEWER_RUST: "1.77"  # Rust 1.77 uses rustdoc v28
    steps:
      - name: Put env vars in outputs
        id: vars
        run: |
          echo "older-rust=$OLDER_RUST" >> $GITHUB_OUTPUT
          echo "newer-rust=$NEWER_RUST" >> $GITHUB_OUTPUT

      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: '3371d7ceab242440216ae9ab99829631fa418f3b'
          path: 'subject'

      # rust-libp2p requires protobuf-compiler.
      - name: Install protobuf-compiler
        run: sudo apt install protobuf-compiler

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: ${{ steps.vars.outputs.older-rust }}
          rustflags: ""
          cache: false

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: cross-version-caching-${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p_core-0_37_0

      # If we failed to set up the cache, set it up now.
      - name: Run semver-checks
        if: steps.cache.outputs.cache-hit != 'true'
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/core/Cargo.toml" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: cross-version-caching-${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Install newer rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: ${{ steps.vars.outputs.newer-rust }}
          rustflags: ""
          cache: false

      - name: Check with older rustdoc version cached
        run: |
          # Echo commands to make debugging this script easier.
          set -x

          # Use a separate workspace, to avoid contaminating the cache for Swatinem/rust-cache@v2
          cp -R subject subject-new

          # Show what's in the cache.
          ls subject-new/target/semver-checks/cache/

          # Ensure the previous cached rustdoc file still exists.
          [ -f "subject-new/target/semver-checks/cache/registry-libp2p_core-0_37_0.json" ] || { \
            echo "could not find libp2p-core cache file"; \
            exit 1;
          }

          export OLD_RUSTDOC_VERSION="$(jq .format_version subject-new/target/semver-checks/cache/registry-libp2p_core-0_37_0.json)"

          # Run cargo-semver-checks with the older cached file.
          # In a prior step, we installed a newer Rust, so we'll set that as the default
          # for cargo-semver-checks to invoke here.
          rustup override set "$NEWER_RUST"
          bins/cargo-semver-checks semver-checks check-release --manifest-path="subject-new/core/Cargo.toml" --verbose

          export NEW_RUSTDOC_VERSION="$(jq .format_version subject-new/target/semver-checks/cache/registry-libp2p_core-0_37_0.json)"

          # Ensure the cached rustdoc versions were indeed different before and after.
          [ "$OLD_RUSTDOC_VERSION" != "$NEW_RUSTDOC_VERSION" ] || exit 1

  cross-feature-caching:
    # Ensure that cached rustdoc JSON files created with mismatched feature config is not used.
    name: 'Caching with feature config changed'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      # This is a fork of serde, modified to make feature `unstable` break semver.
      - name: Checkout fork of serde
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'staniewzki/serde'
          ref: 'c479da812fd421260667c02049e6d11edd82c2dc'
          path: 'subject'

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: cross-feature-caching-${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-serde-1_0_162

      # Run even if there was a cache hit, to make sure the check passes.
      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/serde/Cargo.toml" --verbose

      # Run cargo-semver-checks, enabling feature `unstable` this time.
      # We expect this to fail.
      # This run must not use the `serde` rustdoc without this feature as a baseline.
      # If that happens, this check will unexpectedly pass -- and the test will fail.
      - name: Check with rustdoc for mismatching feature config cached
        continue-on-error: true
        run: |
          cd semver
          set -euo pipefail
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/serde/Cargo.toml" --verbose --features unstable | tee output
          touch unexpectedly_did_not_fail

      - name: Check whether it failed
        run: |
          cd semver
          if [ -f unexpectedly_did_not_fail ]; then exit 1; else exit 0; fi

      - name: Check output
        run: |
          cd semver
          EXPECTED="$(echo -e "--- failure struct_missing: pub struct removed or renamed ---")"
          RESULT="$(cat output | grep failure)"
          diff <(echo "$RESULT") <(echo "$EXPECTED")

      - name: Verify cached rustdoc's hash
        run: |
          if [ -f subject/target/semver-checks/cache/registry-serde-1_0_162-f0dcb72a80405fd6.json ]; then exit 0; else exit 1; fi

      - name: Cleanup
        run: |
          cd semver
          rm output
          rm -f unexpectedly_did_not_fail

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: cross-feature-caching-${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-rust-libp2p:
    # Run cargo-semver-checks on a crate with no semver violations,
    # to make sure there are no false-positives.
    #
    # cargo-semver-checks previously reported a false-positive here,
    # since an enum variant in the crate was included by a feature:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/147
    name: 'Semver: libp2p-core 0.37.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: '3371d7ceab242440216ae9ab99829631fa418f3b'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      # rust-libp2p requires protobuf-compiler.
      - name: Install protobuf-compiler
        run: sudo apt install protobuf-compiler

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p_core-0_37_0

      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/core/Cargo.toml" --verbose

      # Test passing package name explicitly.
      # It was previously possible to make the command above work while the one here failed.
      # Reference: https://github.com/obi1kenobi/cargo-semver-checks/issues/174
      - name: Run semver-checks (alternative command)
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/core/Cargo.toml" --package="libp2p-core" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-libp2p-dcutr-relay:
    # Run cargo-semver-checks on a crate with no semver violations,
    # to make sure there are no false-positives.
    #
    # cargo-semver-checks previously reported false-positives here
    # due to renaming re-exports causing confusion about which types match each other:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/202
    # https://github.com/libp2p/rust-libp2p/pull/2647#issuecomment-1340254920
    name: 'Semver: libp2p-dcutr 1.62.0 and libp2p-relay 0.14.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: 'be0b62a78fe9d72811b9eda742137cc8ddc4da35'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      # rust-libp2p requires protobuf-compiler.
      - name: Install protobuf-compiler
        run: sudo apt install protobuf-compiler

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p_dcutr-1_62_0
            subject/target/semver-checks/local-libp2p_relay-0_14_0

      - name: Run semver-checks on libp2p-dcutr
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/protocols/dcutr/Cargo.toml" --verbose

      - name: Run semver-checks on libp2p-relay
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/protocols/relay/Cargo.toml" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-libp2p-gossipsub-request-response:
    # Run cargo-semver-checks on two crates that used to trip an assert and cause a crash,
    # due to re-exports that omit generic parameters because the underlying generic type supplies
    # default values for those generics.
    # https://github.com/libp2p/rust-libp2p/pull/3401#issuecomment-1409381365
    name: 'Semver: libp2p-gossipsub ~0.44.0 + libp2p-request-response ~0.24.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: '8b8dc26e0601433f5675430b29b50687a37d4cd8'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      # rust-libp2p requires protobuf-compiler.
      - name: Install protobuf-compiler
        run: sudo apt install protobuf-compiler

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p_gossipsub-0_44_0
            subject/target/semver-checks/local-libp2p_request_response-0_23_0

      - name: Run semver-checks on libp2p-gossipsub
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/protocols/gossipsub/Cargo.toml" --baseline-version 0.43.0 --verbose

      - name: Run semver-checks on libp2p-request-response
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/protocols/request-response/Cargo.toml" --baseline-version 0.23.0 --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-libp2p-uds:
    # Run cargo-semver-checks on a crate that has dependencies in a custom target
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/369
    name: 'Semver: libp2p-uds 0.37.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: '5b4eab7bafe6cba8fea6c806027ea680662b7cc6'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      # rust-libp2p requires protobuf-compiler.
      - name: Install protobuf-compiler
        run: sudo apt install protobuf-compiler

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p_uds-0_37_0

      - name: Run semver-checks on libp2p-uds
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/transports/uds/Cargo.toml" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-core-graphics:
    # Run cargo-semver-checks on a crate with no semver violations,
    # to make sure there are no false-positives.
    #
    # cargo-semver-checks previously reported a false-positive here,
    # due to multiple methods by the same name being defined on the same type.
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/193
    name: 'Semver: core-graphics'
    runs-on: macos-latest
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout rust-libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'servo/core-foundation-rs'
          ref: '786895643140fa0ee4f913d7b4aeb0c4626b2085'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      # This job runs on macOS, not Linux like the rest.
      # It should save its cache, because no other job will save it in its place.
      - uses: Swatinem/rust-cache@v2
        with:
          shared-key: 'semver'
          workspaces: |
            semver
            subject/target/semver-checks/local-core_graphics-0_22_3

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Run semver-checks
        run: |
          cd semver
          cargo run semver-checks check-release --manifest-path="../subject/core-graphics/Cargo.toml" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-bevy-core:
    # cargo-semver-checks previously crashed here due to
    # a bug in the generated Cargo.toml when generating a registry baseline:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/261
    name: 'Semver: bevy_core v0.9.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout bevy
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'bevyengine/bevy'
          ref: 'v0.9.0'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-bevy_core-0_9_0

      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/crates/bevy_core/Cargo.toml" --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-bevy-gltf:
    # cargo-semver-checks reported false-positives since it did not include
    # features defined implicitly via optional dependencies:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/265
    name: 'Semver: bevy_gltf v0.9.1'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout bevy
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'bevyengine/bevy'
          ref: 'v0.9.1'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-bevy_gltf-0_9_1

      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/crates/bevy_gltf/Cargo.toml" --baseline-version 0.9.0 --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-sqllogictest:
    # cargo-semver-checks failed to run here due to workspace manifest-parsing issues:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/370
    name: 'Semver: sqllogictest v0.13.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout sqllogictest
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'risinglightdb/sqllogictest-rs'
          ref: 'v0.13.0'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-sqllogictest-0_13_0

      - name: Run via workspace Cargo.toml
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path ../subject/Cargo.toml -p sqllogictest --verbose

      - name: Run via package Cargo.toml
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path ../subject/sqllogictest/Cargo.toml --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-tokio-explicit:
    # cargo-semver-checks crashed here due to improper CLI argument handling:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/380
    name: 'Semver: tokio ~v1.25.0 (explicit)'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout tokio
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'tokio-rs/tokio'
          ref: 'd7b7c6131774ab631be6529fef3680abfeeb4781'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-tokio-1_25_0
            subject/target/semver-checks/local-tokio_macros-1_8_2
            subject/target/semver-checks/local-tokio_stream-0_1_12
            subject/target/semver-checks/local-tokio_test-0_4_2
            subject/target/semver-checks/local-tokio_util-0_7_7

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      # This test caught two bugs:
      # - The default baseline was set to the current path instead of the default registry version.
      # - Specifying `--exclude` together with a crate manifest that is within a workspace
      #   (but doesn't *itself* define the workspace) would cause the entire workspace to
      #   get tested, even though only a single crate's manifest was specified.
      - name: Run semver-checks on tokio-stream crate manifest only
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/tokio-stream/Cargo.toml" --release-type minor --exclude benches --exclude examples --exclude stress-test --exclude tests-build --exclude tests-integration --verbose

      # This test caught a bug where `--exclude` was silently ignored
      # if `--workspace` wasn't set at the same time.
      - name: Run semver-checks on workspace manifest with explicit exclusions
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/Cargo.toml" --release-type minor --exclude examples --exclude stress-test --exclude tests-build --exclude tests-integration --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-tokio-implicit:
    # cargo-semver-checks crashed here due to improper CLI argument handling:
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/380
    name: 'Semver: tokio ~v1.25.0 (implicit)'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout tokio
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'tokio-rs/tokio'
          ref: 'd7b7c6131774ab631be6529fef3680abfeeb4781'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-tokio-1_25_0
            subject/target/semver-checks/local-tokio_macros-1_8_2
            subject/target/semver-checks/local-tokio_stream-0_1_12
            subject/target/semver-checks/local-tokio_test-0_4_2
            subject/target/semver-checks/local-tokio_util-0_7_7

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      # This test caught a bug where `publish = false` items in a workspace were semver-checked
      # unless either explicit `--workspace` was present or was implied e.g. via `--exclude`.
      - name: Run semver-checks on workspace manifest with implicit exclusions
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/Cargo.toml" --release-type minor --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-clap:
    # clap v3.2.0 added a semver violation
    # check whether cargo-semver-checks detects the issue
    # https://github.com/clap-rs/clap/issues/3876
    name: 'Semver: clap v3.2.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout clap v3.2.0
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'clap-rs/clap'
          ref: 'v3.2.0'
          path: 'subject-current'

      - name: Checkout clap v3.1.18
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'clap-rs/clap'
          ref: 'v3.1.18'
          path: 'subject-baseline'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject-current/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject-current/target/semver-checks/local-clap-3_2_0/
            subject-current/target/semver-checks/git-524e36cf1a67ee6a447d3615a70b065d2b4f5e60/local-clap-3_1_18/
            subject-baseline/target/semver-checks/local-clap-3_1_18/

      - name: Run semver-checks with --baseline-root
        continue-on-error: true
        run: |
          cd semver
          set -euo pipefail
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject-current/Cargo.toml" --baseline-root="../subject-baseline/Cargo.toml" --verbose | tee output
          touch unexpectedly_did_not_fail

      - name: Check whether it failed
        run: |
          cd semver
          if [ -f unexpectedly_did_not_fail ]; then exit 1; else exit 0; fi

      - name: Check output
        run: |
          cd semver
          EXPECTED="$(echo -e "--- failure auto_trait_impl_removed: auto trait no longer implemented ---")"
          RESULT="$(cat output | grep failure)"
          diff <(echo "$RESULT") <(echo "$EXPECTED")

      - name: Cleanup
        run: |
          cd semver
          rm output
          rm -f unexpectedly_did_not_fail

      - name: Fetch v3.1.18 in subject-current
        run: |
          pushd subject-current
          git fetch origin 524e36cf1a67ee6a447d3615a70b065d2b4f5e60
          popd

      - name: Run semver-checks with --baseline-rev
        continue-on-error: true
        run: |
          cd semver
          set -euo pipefail
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject-current/Cargo.toml" --baseline-rev=524e36cf1a67ee6a447d3615a70b065d2b4f5e60 --verbose | tee output
          touch unexpectedly_did_not_fail

      - name: Check whether it failed
        run: |
          cd semver
          if [ -f unexpectedly_did_not_fail ]; then exit 1; else exit 0; fi

      - name: Check output
        run: |
          cd semver
          EXPECTED="$(echo -e "--- failure auto_trait_impl_removed: auto trait no longer implemented ---")"
          RESULT="$(cat output | grep failure)"
          diff <(echo "$RESULT") <(echo "$EXPECTED")

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject-current/target/semver-checks/cache

  run-on-ref-slice-fork:
    # Simulate testing an as-yet-unreleased crate version without an explicit baseline,
    # i.e. with the expectation that the largest crates.io version is used as a baseline.
    # This broke when a PR accidentally changed the default baseline behavior.
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/382
    #
    # To perform this test, we forked a stable crate and made a semver-major break
    # with no version change (v1.2.1). In this test, we make sure that:
    # - v1.2.1 is chosen as the baseline, as the largest crates.io version,
    # - cargo-semver-checks detects the semver break we've manufactured.
    name: 'Semver: ref-slice fork'
    runs-on: ubuntu-latest
    strategy:
      matrix:
        protocol: ["git", "sparse"]
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: true
          path: 'semver'

      - name: Checkout ref-slice fork semver break
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'mgr0dzicki/cargo-semver-action-ref-slice'
          ref: '4d64380252c8fbda023cca58406fa40a27ad1177'  # branch major_change
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        env:
          CARGO_REGISTRIES_CRATES_IO_PROTOCOL: ${{ matrix.protocol }}
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-ref_slice-1_2_1/

      - name: Run semver-checks
        continue-on-error: true
        env:
          CARGO_REGISTRIES_CRATES_IO_PROTOCOL: ${{ matrix.protocol }}
        run: |
          cd semver
          set -euo pipefail
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/Cargo.toml" --verbose 2>&1 | tee output
          touch unexpectedly_did_not_fail

      - name: Check whether it failed
        run: |
          cd semver
          if [ -f unexpectedly_did_not_fail ]; then exit 1; else exit 0; fi

      - name: Baseline is correct
        run: |
          cd semver
          EXPECTED="$(echo -e "    Checking ref_slice v1.2.1 -> v1.2.1 (no change)")"
          # Strip ANSI escapes for colors and bold text before comparing.
          RESULT="$(cat output | grep ' -> v1.' | sed "s,\x1B\[[0-9;]*[a-zA-Z],,g")"
          diff <(echo "$RESULT") <(echo "$EXPECTED")

      - name: Semver break found
        run: |
          cd semver
          EXPECTED="$(echo -e "--- failure function_missing: pub fn removed or renamed ---")"
          RESULT="$(cat output | grep failure)"
          diff <(echo "$RESULT") <(echo "$EXPECTED")
          # Ensure the following fragment (not full line!) is in the output file:
          grep '  function ref_slice::ref_slice, previously in file' output

      - name: Cleanup
        run: |
          cd semver
          rm output
          rm -f unexpectedly_did_not_fail

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  run-on-ref-slice-fork-windows:
    # Same as above, but run on a Windows machine.
    # This broke in a workflow of the GitHub Action using a precompiled binary
    # after a fresh Rust installation, when the registry index does not exist yet
    # (see https://github.com/frewsxcv/rust-crates-index/issues/97).
    name: 'Semver: ref-slice fork (Windows)'
    runs-on: windows-latest
    strategy:
      matrix:
        protocol: ["git", "sparse"]
    needs:
      - build-binary-windows
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: true
          path: semver

      - name: Checkout ref-slice fork semver break
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'mgr0dzicki/cargo-semver-action-ref-slice'
          ref: '4d64380252c8fbda023cca58406fa40a27ad1177'  # branch major_change
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins\
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver\**\Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject\target\semver-checks\cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject\target\semver-checks\local-ref_slice-1_2_1\

      - name: Run cargo-semver-checks
        continue-on-error: true
        id: semver_checks
        env:
          CARGO_REGISTRIES_CRATES_IO_PROTOCOL: ${{ matrix.protocol }}
        run: |
          cd semver
          ..\bins\cargo-semver-checks.exe semver-checks check-release --manifest-path="..\subject\Cargo.toml" 2>&1 | tee output

      - name: Check whether it failed
        if: steps.semver_checks.outcome != 'failure'
        run: |
          echo "Error! check-release should have failed because of the breaking change, but it has not."
          exit 1

      - name: Baseline is correct
        run: |
          cd semver
          $EXPECTED = "    Checking ref_slice v1.2.1 -> v1.2.1 (no change)"
          # Strip ANSI escapes for colors and bold text before comparing.
          cat output | grep ' -> v1.' | sed "s,\x1B\[[0-9;]*[a-zA-Z],,g" | Out-File -FilePath check_line
          cat check_line
          grep "$EXPECTED" check_line

      - name: Semver break found
        run: |
          cd semver
          $EXPECTED = "--- failure function_missing: pub fn removed or renamed ---"
          cat output | grep failure | Out-File -FilePath failure_line
          cat failure_line
          grep "$EXPECTED" failure_line
          # Ensure the following fragment (not full line!) is in the output file:
          grep '  function ref_slice::ref_slice, previously in file' output

      - name: Cleanup
        run: |
          cd semver
          rm output

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver\**\Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject\target\semver-checks\cache

  run-on-libp2p-whose-dependency-has-warnings:
    # cargo-semver-checks failed to generate rustdoc JSON for a commit near libp2p v0.53.1 because:
    # - RUSTFLAGS was set to "-Dwarning" by default by a GitHub Action
    # - libp2p has a dependency (libp2p-yamux) whose dependency (yamux) released a newer version,
    #   which deprecated an item that libp2p-yamux uses
    # - cargo-semver-checks added "--cap-lints" to RUSTDOCFLAGS but not RUSTFLAGS
    # - generating rustdoc JSON for libp2p involves a rustc check of its dependency, and that
    #   check obeys RUSTFLAGS, not RUSTDOCFLAGS
    #
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/589
    name: 'Semver: dependency has warnings with "-Dwarnings" (libp2p v0.53.1)'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout libp2p
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'libp2p/rust-libp2p'
          ref: '4759ba8244242628164b7ec9e7dc99d67269e39f'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: "-Dwarnings"  # set explicitly, to ensure we trigger the bug described above

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-libp2p-0_53_1

      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/Cargo.toml" -p libp2p --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache


  run-on-perf-event-open-sys2:
    # cargo-semver-checks failed to find the generated rustdoc JSON
    # because the crate used a lib name different from the crate name.
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/432
    name: 'Semver: perf-event-open-sys2 v5.0.0'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      - name: Checkout phantomical/perf-event
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: 'phantomical/perf-event'
          ref: '47dc882dbfb44b86584540a6e4f2815caaf72c10'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false
          rustflags: ""

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-perf-event-open-sys2-5_0_0

      - name: Run semver-checks
        run: |
          cd semver
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/perf-event-open-sys/Cargo.toml" --baseline-version 5.0.0 --verbose

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  fails-on-too-old-rustc:
    # cargo-semver-checks fails if the rustc version is not high enough
    # because of rustdoc format incompatibilities. This test ensures that
    # we have a good error message.
    # https://github.com/obi1kenobi/cargo-semver-checks/issues/444
    name: 'Check failure when installed rustc is too old'
    runs-on: ubuntu-latest
    needs:
      - build-binary
    steps:
      - name: Checkout cargo-semver-checks
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          path: 'semver'

      # rust-fnv is very lightweight and quite stable.
      - name: Checkout rust-fnv
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          repository: "servo/rust-fnv"
          ref: '94334357754a82f3ffb705dc387bd5f4c921e954'
          path: 'subject'

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: "1.76"
          rustflags: ""
          cache: false

      - name: Restore binary
        id: cache-binary
        uses: actions/cache/restore@v4
        with:
          path: bins/
          key: bins-${{ runner.os }}-${{ github.run_id }}-${{ github.run_attempt }}
          fail-on-cache-miss: true

      - name: Restore rustdoc
        id: cache
        uses: actions/cache/restore@v4
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

      - name: Restore cargo index and rustdoc target dir
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            subject/target/semver-checks/local-fnv-1_0_7/

      - name: Run semver-checks
        continue-on-error: true
        id: semver_checks
        run: |
          cd semver
          set -euo pipefail
          ../bins/cargo-semver-checks semver-checks check-release --manifest-path="../subject/Cargo.toml" 2>&1 | tee output
          touch unexpectedly_did_not_fail

      - name: Check whether it failed
        if: steps.semver_checks.outcome != 'failure'
        run: |
          echo "Error! check-release should have failed because the rustc version is too old, but it has not."
          exit 1

      - name: Check output
        run: |
          cd semver
          EXPECTED="$(echo -e "error: rustc version is not high enough: >=1.77.0 needed, got 1.76.0")"
          RESULT="$(cat output | grep 'error: rustc version')"
          diff <(echo "$RESULT") <(echo "$EXPECTED")

      - name: Cleanup
        run: |
          cd semver
          rm output
          rm -f unexpectedly_did_not_fail

      - name: Save rustdoc
        uses: actions/cache/save@v4
        if: steps.cache.outputs.cache-hit != 'true'
        with:
          key: ${{ runner.os }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('semver/**/Cargo.lock') }}-${{ github.job }}-rustdoc
          path: subject/target/semver-checks/cache

  init-release:
    name: Run the release workflow
    needs:
      - should-publish
      - ci-everything
      - pre-publish-checks
    if: needs.should-publish.outputs.is_new_version == 'yes' && github.ref == 'refs/heads/main'
    uses: ./.github/workflows/release.yml
    with:
      publish-tag: ${{ needs.should-publish.outputs.publish-tag }}
    secrets:
      CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

  should-publish:
    name: Check if version changed
    runs-on: ubuntu-latest
    outputs:
      is_new_version: ${{ steps.check.outputs.is_new_version }}
      publish-tag: ${{ steps.tag.outputs.tag }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false

      - name: Install rust
        id: toolchain
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache: false

      - uses: Swatinem/rust-cache@v2

      - id: check
        run: |
          set +e
          ./scripts/is_version_already_uploaded.sh cargo-semver-checks
          export EXIT_CODE="$?"
          set -e
          if [[ "$EXIT_CODE" == "7" ]]; then
            echo 'is_new_version=no' >> $GITHUB_OUTPUT
          elif [[ "$EXIT_CODE" == "0" ]]; then
            echo 'is_new_version=yes' >> $GITHUB_OUTPUT
          else
            # Unexpected outcome, indicates a bug.
            exit "$EXIT_CODE"
          fi
      - name: Determine the tag name
        id: tag
        run: |
          export TAG_NAME="v$(./scripts/get_current_version.sh cargo-semver-checks)"
          echo "tag=$TAG_NAME" >> $GITHUB_OUTPUT

  pre-publish-checks:
    name: Check for semver compliance
    runs-on: ubuntu-latest
    needs:
      - ci-everything
      - should-publish
    if: needs.should-publish.outputs.is_new_version == 'yes'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          persist-credentials: false

      - name: Check semver
        uses: obi1kenobi/cargo-semver-checks-action@v2
        with:
          # Ensure we include all new non-default features here explicitly, except for
          # pass-through mutually-exclusive features from our dependencies such as:
          # https://github.com/obi1kenobi/cargo-semver-checks/pull/824
          feature-group: default-features