GitHub Actions workflow for running GNU tar tests

.github/workflows/GnuTests.yml

@@ -0,0 +1,53 @@
+name: GnuTests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - '*'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  native:
+    name: Run GNU tests (native)
+    runs-on: ubuntu-24.04
+    steps:
+    - name: Checkout code (uutils)
+      uses: actions/checkout@v4
+      with:
+        path: 'uutils'
+        persist-credentials: false
+
+    - uses: dtolnay/rust-toolchain@master
+      with:
+        toolchain: stable
+        components: rustfmt
+
+    - uses: Swatinem/rust-cache@v2
+      with:
+        workspaces: "./uutils -> target"
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y autoconf autopoint bison texinfo gperf gcc g++ gdb python3-pyinotify jq valgrind libacl1-dev libattr1-dev libcap-dev libselinux1-dev attr quilt gettext
+
+    - name: Build binaries and GNU tar
+      shell: bash
+      run: |
+        cd 'uutils'
+        # This script will clone GNU tar and build everything
+        bash util/build-gnu.sh --release-build
+
+    - name: Run GNU tests
+      shell: bash
+      run: |
+        cd 'uutils'
+        bash util/run-gnu-test.sh

util/build-gnu.sh

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+#!/usr/bin/env bash
+set -e
+
+ME="${0}"
+ME_dir="$(dirname -- "$("${READLINK:-readlink}" -fm -- "${ME}")")"
+REPO_main_dir="$(dirname -- "${ME_dir}")"
+
+# Default profile is 'debug'
+UU_MAKE_PROFILE='debug'
+
+for arg in "$@"
+do
+    if [ "$arg" == "--release-build" ]; then
+        UU_MAKE_PROFILE='release'
+        break
+    fi
+done
+
+path_UUTILS=${path_UUTILS:-${REPO_main_dir}}
+path_GNU="${path_GNU:-${path_UUTILS}/../gnu}"
+
+echo "Building uutils tar..."
+cd "${path_UUTILS}"
+cargo build --profile "${UU_MAKE_PROFILE}" --bin tarapp
+
+if [[ ! -z  "$CARGO_TARGET_DIR" ]]; then
+    UU_BUILD_DIR="${CARGO_TARGET_DIR}/${UU_MAKE_PROFILE}"
+else
+    UU_BUILD_DIR="${path_UUTILS}/target/${UU_MAKE_PROFILE}"
+fi
+
+# Symlink tarapp to tar so tests find it as 'tar'
+ln -sf "${UU_BUILD_DIR}/tarapp" "${UU_BUILD_DIR}/tar"
+echo "Created symlink ${UU_BUILD_DIR}/tar -> tarapp"
+
+# Clone GNU tar if needed
+if test ! -d "${path_GNU}/.git"; then
+    echo "Cloning GNU tar..."
+    git clone --recurse-submodules https://git.savannah.gnu.org/git/tar.git "${path_GNU}"
+    cd "${path_GNU}"
+    # Checkout v1.35
+    git checkout v1.35
+
+    # Bootstrap requires gnulib. 
+    # If git clone --recurse-submodules was used it might be there, but standard bootstrap fetches it.
+    # We need to make sure we have dependencies.
+    # FORCE_UNSAFE_CONFIGURE=1 might be needed if running as root in some envs, but usually fine.
+    ./bootstrap --skip-po
+fi
+
+cd "${path_GNU}"
+
+if [ ! -f Makefile ]; then
+    echo "Configuring GNU tar..."
+    # Configure to build native tar (needed for test suite generation)
+    ./configure --quiet
+fi
+
+echo "Building GNU tar (for test suite)..."
+make -j$(nproc)

util/run-gnu-test.sh

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+#!/usr/bin/env bash
+set -e
+
+# Use GNU version for make, nproc, readlink on *BSD
+case "$OSTYPE" in
+    *bsd*)
+        MAKE="gmake"
+        NPROC="gnproc"
+        READLINK="greadlink"
+        ;;
+    *)
+        MAKE="make"
+        NPROC="nproc"
+        READLINK="readlink"
+        ;;
+esac
+
+ME="${0}"
+ME_dir="$(dirname -- "$("${READLINK:-readlink}" -fm -- "${ME}")")"
+REPO_main_dir="$(dirname -- "${ME_dir}")"
+
+path_UUTILS=${path_UUTILS:-${REPO_main_dir}}
+path_GNU="${path_GNU:-${path_UUTILS}/../gnu}"
+
+# Determine profile
+if [[ -d "${path_UUTILS}/target/release" ]]; then
+    UU_BUILD_DIR="${path_UUTILS}/target/release"
+elif [[ -d "${path_UUTILS}/target/debug" ]]; then
+    UU_BUILD_DIR="${path_UUTILS}/target/debug"
+else
+    echo "Could not find build directory in ${path_UUTILS}/target"
+    exit 1
+fi
+
+echo "Using uutils tar from: ${UU_BUILD_DIR}"
+
+cd "${path_GNU}"
+
+export RUST_BACKTRACE=1
+
+# The GNU tar testsuite usually looks for 'tar' in the path or uses the one in src/
+# We force it to use ours by putting it first in PATH.
+export PATH="${UU_BUILD_DIR}:$PATH"
+export TAR="${UU_BUILD_DIR}/tar"
+
+echo "Running GNU tar tests..."
+
+# Run with timeout and make check
+# We use TAR to set the tar binary for the testsuite
+# Then we use $* to pass any additional user arguments (specific tests)
+cp "${TAR}" src/tar
+timeout -sKILL 4h "${MAKE}" -j "$("${NPROC}")" check