Add ci-env-info recipe; slim CI to AVX bug test only

Co-authored-by: nyurik <1641515+nyurik@users.noreply.github.com>

Author: Copilot

.github/workflows/ci.yml

@@ -20,7 +20,6 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
-          - os: macos-latest
     steps:
       - uses: actions/checkout@v6
         with: { submodules: recursive }
@@ -29,120 +28,3 @@ jobs:
       - uses: taiki-e/install-action@v2
         with: { tool: 'just,cargo-binstall' }
       - run: just ci-test
-
-  test-nightly:
-    name: Nightly-specific tests
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-        with: { submodules: recursive }
-      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
-        uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with: { tool: 'just' }
-      - run: rustup install nightly --profile minimal
-      - run: just test-publish
-
-  test-msrv:
-    name: Test MSRV
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-        with: { submodules: recursive }
-      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
-        uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with: { tool: 'just' }
-      - name: Read MSRV
-        id: msrv
-        run: echo "value=$(just get-msrv)" >> $GITHUB_OUTPUT
-      - name: Install MSRV Rust ${{ steps.msrv.outputs.value }}
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          toolchain: ${{ steps.msrv.outputs.value }}
-          components: rustfmt
-      - run: just ci_mode=0 ci-test-msrv  # Ignore warnings in MSRV
-  fuzz:
-    name: Fuzz
-    runs-on: ubuntu-latest
-
-    env:
-      # The number of seconds to run the fuzz target.
-      FUZZ_TIME: 60
-
-    strategy:
-      matrix:
-        include:
-          - fuzz_target: cpp_roundtrip
-          - fuzz_target: rust_compress_oracle
-          - fuzz_target: rust_decompress_oracle
-
-    steps:
-      - uses: actions/checkout@v6
-        with: {persist-credentials: false, submodules: recursive}
-
-      # Install the nightly Rust channel.
-      - run: rustup toolchain install nightly
-      - run: rustup default nightly
-
-      # Install and cache `cargo-fuzz`.
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: cargo-binstall
-      - run: cargo binstall -y cargo-fuzz@0.13.1 # Pinned to avoid breakage.
-
-      # Build and then run the fuzz target.
-      #  --target x86_64-unknown-linux-gnu is necessary to not default to musl, which is not supported by cargo-fuzz.
-      - run: cargo fuzz build --target x86_64-unknown-linux-gnu ${{ matrix.fuzz_target }}
-      - run: cargo fuzz run --target x86_64-unknown-linux-gnu ${{ matrix.fuzz_target }} -- -max_total_time=${{ env.FUZZ_TIME }}
-
-      # Upload fuzzing artifacts on failure for post-mortem debugging.
-      - uses: actions/upload-artifact@v6
-        if: failure()
-        with:
-          name: fuzzing-artifacts-${{ matrix.fuzz_target }}-${{ github.sha }}
-          path: fuzz/artifacts
-
-  coverage:
-    name: Code Coverage
-    if: github.event_name != 'release'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-        with: { submodules: recursive }
-      - uses: Swatinem/rust-cache@v2
-      - uses: taiki-e/install-action@v2
-        with: { tool: 'just,cargo-llvm-cov' }
-      - name: Generate code coverage
-        run: just ci-coverage
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: target/llvm-cov/codecov.info
-
-  # This job checks if any of the previous jobs failed or were canceled.
-  # This approach also allows some jobs to be skipped if they are not needed.
-  ci-passed:
-    needs: [ test, test-nightly, test-msrv, fuzz ]
-    if: always()
-    runs-on: ubuntu-latest
-    steps:
-      - name: Result of the needed steps
-        run: echo "${{ toJSON(needs) }}"
-      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
-        run: exit 1
-
-  release:
-    # Some dependencies of the `ci-passed` job might be skipped, but we still want to run if the `ci-passed` job succeeded.
-    if: always() && startsWith(github.ref, 'refs/tags/') && needs.ci-passed.result == 'success'
-    name: Publish to crates.io
-    needs: [ ci-passed ]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-        with: { submodules: recursive }
-      - name: Publish to crates.io
-        run: cargo publish
-        env:
-          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

justfile

@@ -2,6 +2,7 @@
 
 main_crate := 'fastpfor'
 features_flag := '--all-features'
+just := just_executable()
 
 # if running in CI, treat warnings as errors by setting RUSTFLAGS and RUSTDOCFLAGS to '-D warnings' unless they are already set
 # Use `CI=true just ci-test` to run the same tests as in GitHub CI.
@@ -36,7 +37,7 @@ ci-coverage: env-info && \
     mkdir -p target/llvm-cov
 
 # Run all tests as expected by CI
-ci-test: env-info test-fmt build clippy test test-doc && assert-git-is-clean
+ci-test: ci-env-info test-fmt build clippy test test-doc && assert-git-is-clean
 
 # Run minimal subset of tests to ensure compatibility with MSRV
 ci-test-msrv: env-info test
@@ -70,6 +71,28 @@ env-info:
     @echo "RUSTDOCFLAGS='$RUSTDOCFLAGS'"
     @echo "RUST_BACKTRACE='$RUST_BACKTRACE'"
 
+# Print detailed CI environment info including CPU details (Linux-only)
+ci-env-info:
+    @echo "::group::General environment Information"
+    @echo "Running for '{{main_crate}}' crate {{if ci_mode == '1' {'in CI mode'} else {'in dev mode'} }} on {{os()}} / {{arch()}}"
+    @echo "PWD {{justfile_directory()}}"
+    {{just}} --version
+    rustc --version
+    cargo --version
+    rustup --version
+    @echo "RUSTFLAGS='$RUSTFLAGS'"
+    @echo "RUSTDOCFLAGS='$RUSTDOCFLAGS'"
+    @echo "RUST_BACKTRACE='$RUST_BACKTRACE'"
+    @echo "::endgroup::"
+
+    @echo "::group::lscpu"
+    lscpu
+    @echo "::endgroup::"
+
+    @echo "::group::/proc/cpuinfo"
+    cat /proc/cpuinfo
+    @echo "::endgroup::"
+
 # Reformat all code `cargo fmt`. If nightly is available, use it for better results
 fmt:
     #!/usr/bin/env bash