name: L10n (Localization)

# spell-checker: disable

on:
  pull_request:
  push:
    branches:
      - '*'

env:
  # * style job configuration
  STYLE_FAIL_ON_FAULT: true ## (bool) fail the build if a style job contains a fault (error or warning); may be overridden on a per-job basis

permissions:
  contents: read # to fetch code (actions/checkout)

# End the current execution if there is a new changeset in the PR.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

jobs:

  l10n_build_test:
    name: L10n/Build and Test
    runs-on: ${{ matrix.job.os }}
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    strategy:
      fail-fast: false
      matrix:
        job:
          - { os: ubuntu-latest  , features: "feat_os_unix" }
          - { os: macos-latest   , features: "feat_os_macos" }
          - { os: windows-latest , features: "feat_os_windows" }
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: taiki-e/install-action@nextest
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        ## Install/setup prerequisites
        case '${{ matrix.job.os }}' in
          ubuntu-*)
            # selinux headers needed for testing
            sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
          ;;
          macos-*)
            # needed for testing
            brew install coreutils
          ;;
        esac
    - name: Build with platform features
      shell: bash
      run: |
        ## Build with platform-specific features to enable l10n functionality
        cargo build --features ${{ matrix.job.features }}
    - name: Test l10n functionality
      shell: bash
      run: |
        ## Test l10n functionality
        cargo test -p uucore locale
        cargo test
      env:
        RUST_BACKTRACE: "1"

  l10n_fluent_syntax:
    name: L10n/Fluent Syntax Check
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - name: Setup Python
      uses: actions/setup-python@v6
      with:
        python-version: '3.x'
    - name: Install Mozilla Fluent Linter
      shell: bash
      run: |
        ## Install Mozilla Fluent Linter
        pip install moz-fluent-linter
    - name: Find and validate Fluent files
      shell: bash
      run: |

        fluent_dirs=$(find . -name "*.ftl" -type f -exec dirname {} \; | sort | uniq 2>/dev/null || true)

        if [ -n "$fluent_dirs" ]; then
          echo "Found Fluent directories:"
          echo "$fluent_dirs"

          # Count total files for informational purposes
          total_files=$(find . -name "*.ftl" -type f | wc -l)
          echo "Total Fluent files: $total_files"
        else
          echo "::notice::No Fluent (.ftl) files found in the repository"
          exit 0
        fi

        echo "Running Fluent Linter on directories..."

        has_errors=false

        while IFS= read -r dir; do
          echo "Checking directory $dir with Fluent Linter..."

          if ! moz-fluent-lint --config .github/fluent_linter_config.yml "$dir"; then
            echo "::error::Fluent syntax errors found in $dir"
            exit 1
          else
            echo "✓ Fluent syntax check passed for directory $dir"
          fi

        done <<< "$fluent_dirs"

        echo "::notice::All Fluent directories passed Fluent Linter validation"

  l10n_clap_error_localization:
    name: L10n/Clap Error Localization Test
    runs-on: ubuntu-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
        sudo locale-gen --keep-existing fr_FR.UTF-8
        locale -a | grep -i fr || exit 1
    - name: Build coreutils with clap localization support
      shell: bash
      run: |
        cargo build --features feat_os_unix --bin coreutils
    - name: Test English clap error localization
      shell: bash
      run: |
        export LANG=en_US.UTF-8
        export LC_ALL=en_US.UTF-8

        # Test invalid argument error - should show colored error message
        echo "Testing invalid argument error..."
        error_output=$(cargo run --features feat_os_unix --bin coreutils -- cp --invalid-arg 2>&1 || echo "Expected error occurred")
        echo "Error output: $error_output"

        # Check for expected English clap error patterns
        english_errors_found=0

        if echo "$error_output" | grep -q "error.*unexpected argument"; then
          echo "✓ Found English clap error message pattern"
          english_errors_found=$((english_errors_found + 1))
        fi

        if echo "$error_output" | grep -q "Usage:"; then
          echo "✓ Found English usage pattern"
          english_errors_found=$((english_errors_found + 1))
        fi

        if echo "$error_output" | grep -q "For more information.*--help"; then
          echo "✓ Found English help suggestion"
          english_errors_found=$((english_errors_found + 1))
        fi

        # Test typo suggestion
        echo "Testing typo suggestion..."
        typo_output=$(cargo run --features feat_os_unix --bin coreutils -- ls --verbos 2>&1 || echo "Expected error occurred")
        echo "Typo output: $typo_output"

        if echo "$typo_output" | grep -q "similar.*verbose"; then
          echo "✓ Found English typo suggestion"
          english_errors_found=$((english_errors_found + 1))
        fi

        echo "English clap errors found: $english_errors_found"
        if [ "$english_errors_found" -ge 2 ]; then
          echo "✓ SUCCESS: English clap error localization working"
        else
          echo "✗ ERROR: English clap error localization not working properly"
          exit 1
        fi
      env:
        RUST_BACKTRACE: "1"

    - name: Test French clap error localization
      shell: bash
      run: |
        export LANG=fr_FR.UTF-8
        export LC_ALL=fr_FR.UTF-8

        # Test invalid argument error - should show French colored error message
        echo "Testing invalid argument error in French..."
        error_output=$(cargo run --features feat_os_unix --bin coreutils -- cp --invalid-arg 2>&1 || echo "Expected error occurred")
        echo "French error output: $error_output"

        # Check for expected French clap error patterns
        french_errors_found=0

        if echo "$error_output" | grep -q "erreur.*argument inattendu"; then
          echo "✓ Found French clap error message: 'erreur: argument inattendu'"
          french_errors_found=$((french_errors_found + 1))
        fi

        if echo "$error_output" | grep -q "conseil.*pour passer.*comme valeur"; then
          echo "✓ Found French tip message: 'conseil: pour passer ... comme valeur'"
          french_errors_found=$((french_errors_found + 1))
        fi

        if echo "$error_output" | grep -q "Utilisation:"; then
          echo "✓ Found French usage pattern: 'Utilisation:'"
          french_errors_found=$((french_errors_found + 1))
        fi

        if echo "$error_output" | grep -q "Pour plus d'informations.*--help"; then
          echo "✓ Found French help suggestion: 'Pour plus d'informations'"
          french_errors_found=$((french_errors_found + 1))
        fi

        # Test typo suggestion in French
        echo "Testing typo suggestion in French..."
        typo_output=$(cargo run --features feat_os_unix --bin coreutils -- ls --verbos 2>&1 || echo "Expected error occurred")
        echo "French typo output: $typo_output"

        if echo "$typo_output" | grep -q "conseil.*similaire.*verbose"; then
          echo "✓ Found French typo suggestion with 'conseil'"
          french_errors_found=$((french_errors_found + 1))
        fi

        echo "French clap errors found: $french_errors_found"
        if [ "$french_errors_found" -ge 2 ]; then
          echo "✓ SUCCESS: French clap error localization working - found $french_errors_found French patterns"
        else
          echo "✗ ERROR: French clap error localization not working properly"
          echo "Note: This might be expected if French common locale files are not available"
          # Don't fail the build - French clap localization might not be fully set up yet
          echo "::warning::French clap error localization not working, but continuing"
        fi

        # Test that colors are working (ANSI escape codes)
        echo "Testing ANSI color codes in error output..."
        if echo "$error_output" | grep -q $'\x1b\[3[0-7]m'; then
          echo "✓ Found ANSI color codes in error output"
        else
          echo "✗ No ANSI color codes found - colors may not be working"
          echo "::warning::ANSI color codes not detected in clap error output"
        fi
      env:
        RUST_BACKTRACE: "1"

    - name: Test clap localization with multiple utilities
      shell: bash
      run: |
        export LANG=en_US.UTF-8
        export LC_ALL=en_US.UTF-8

        utilities_to_test=("ls" "cat" "touch" "cp" "mv")
        utilities_passed=0

        for util in "${utilities_to_test[@]}"; do
          echo "Testing $util with invalid argument..."
          util_error=$(cargo run --features feat_os_unix --bin coreutils -- "$util" --nonexistent-flag 2>&1 || echo "Expected error occurred")

          if echo "$util_error" | grep -q "error.*unexpected argument"; then
            echo "✓ $util: clap localization working"
            utilities_passed=$((utilities_passed + 1))
          else
            echo "✗ $util: clap localization not working"
            echo "Output: $util_error"
          fi
        done

        echo "Utilities with working clap localization: $utilities_passed/${#utilities_to_test[@]}"
        if [ "$utilities_passed" -ge 3 ]; then
          echo "✓ SUCCESS: Clap localization working across multiple utilities"
        else
          echo "✗ ERROR: Clap localization not working for enough utilities"
          exit 1
        fi
      env:
        RUST_BACKTRACE: "1"

  l10n_french_integration:
    name: L10n/French Integration Test
    runs-on: ubuntu-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        ## Install/setup prerequisites
        sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
    - name: Generate French locale
      shell: bash
      run: |
        ## Generate French locale for testing
        sudo locale-gen --keep-existing fr_FR.UTF-8
        locale -a | grep -i fr || echo "French locale not found, continuing anyway"
    - name: Build coreutils with l10n support
      shell: bash
      run: |
        ## Build coreutils with Unix features and l10n support
        cargo build --features feat_os_unix --bin coreutils
    - name: Test French localization
      shell: bash
      run: |
        ## Test French localization with various commands
        export LANG=fr_FR.UTF-8
        export LC_ALL=fr_FR.UTF-8

        echo "Testing touch --help with French locale..."
        help_output=$(cargo run --features feat_os_unix --bin coreutils -- touch --help 2>&1 || echo "Command failed")
        echo "Help output: $help_output"

        # Check for specific French strings from touch fr-FR.ftl
        french_strings_found=0
        if echo "$help_output" | grep -q "Mettre à jour les temps d'accès"; then
          echo "✓ Found French description: 'Mettre à jour les temps d'accès'"
          french_strings_found=$((french_strings_found + 1))
        fi
        if echo "$help_output" | grep -q "changer seulement le temps d'accès"; then
          echo "✓ Found French help text: 'changer seulement le temps d'accès'"
          french_strings_found=$((french_strings_found + 1))
        fi
        if echo "$help_output" | grep -q "FICHIER"; then
          echo "✓ Found French usage pattern: 'FICHIER'"
          french_strings_found=$((french_strings_found + 1))
        fi

        echo "Testing ls --help with French locale..."
        ls_help=$(cargo run --features feat_os_unix --bin coreutils -- ls --help 2>&1 || echo "Command failed")
        echo "ls help output: $ls_help"

        # Check for specific French strings from ls fr-FR.ftl
        if echo "$ls_help" | grep -q "Lister le contenu des répertoires"; then
          echo "✓ Found French ls description: 'Lister le contenu des répertoires'"
          french_strings_found=$((french_strings_found + 1))
        fi
        if echo "$ls_help" | grep -q "Afficher les informations d'aide"; then
          echo "✓ Found French ls help text: 'Afficher les informations d'aide'"
          french_strings_found=$((french_strings_found + 1))
        fi

        echo "Testing base64 --help with French locale..."
        base64_help=$(cargo run --features feat_os_unix --bin coreutils -- base64 --help 2>&1 || echo "Command failed")
        echo "base64 help output: $base64_help"

        # Check for specific French strings from base64 fr-FR.ftl
        if echo "$base64_help" | grep -q "encoder/décoder les données"; then
          echo "✓ Found French base64 description: 'encoder/décoder les données'"
          french_strings_found=$((french_strings_found + 1))
        fi

        echo "Testing with error messages..."
        error_output=$(cargo run --features feat_os_unix --bin coreutils -- ls /nonexistent 2>&1 || echo "Expected error occurred")
        echo "Error output: $error_output"

        # Check for French error messages from ls fr-FR.ftl
        if echo "$error_output" | grep -q "impossible d'accéder à"; then
          echo "✓ Found French error message: 'impossible d'accéder à'"
          french_strings_found=$((french_strings_found + 1))
        fi
        if echo "$error_output" | grep -q "Aucun fichier ou répertoire de ce type"; then
          echo "✓ Found French error text: 'Aucun fichier ou répertoire de ce type'"
          french_strings_found=$((french_strings_found + 1))
        fi

        # Test that the binary works and doesn't crash with French locale
        version_output=$(cargo run --features feat_os_unix --bin coreutils -- --version 2>&1 || echo "Version command failed")
        echo "Version output: $version_output"

        # Final validation - ensure we found at least some French strings
        echo "French strings found: $french_strings_found"
        if [ "$french_strings_found" -gt 0 ]; then
          echo "✓ SUCCESS: French locale integration test passed - found $french_strings_found French strings"
        else
          echo "✗ ERROR: No French strings were detected, but commands executed successfully"
          exit 1
        fi
      env:
        RUST_BACKTRACE: "1"

  l10n_multicall_binary_install:
    name: L10n/Multi-call Binary Install Test
    runs-on: ${{ matrix.job.os }}
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    strategy:
      fail-fast: false
      matrix:
        job:
          - { os: ubuntu-latest  , features: "feat_os_unix" }
          - { os: macos-latest   , features: "feat_os_macos" }
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        ## Install/setup prerequisites
        case '${{ matrix.job.os }}' in
          ubuntu-*)
            sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
          ;;
          macos-*)
            brew install coreutils
          ;;
        esac
    - name: Install via make and test multi-call binary
      shell: bash
      run: |
        ## Install using make and test installed binaries
        echo "Installing with make using DESTDIR..."

        # Create installation directory
        INSTALL_DIR="$PWD/install-dir"
        mkdir -p "$INSTALL_DIR"
        mkdir -p "$INSTALL_DIR/usr/bin"

        # Build and install using make with DESTDIR
        echo "Building multi-call binary with MULTICALL=y"
        echo "Current directory: $PWD"
        echo "Installation directory will be: $INSTALL_DIR"

        # First check if binary exists after build
        echo "Checking if coreutils was built..."
        ls -la target/release-small/coreutils || echo "No coreutils binary in target/release-small/"

        make FEATURES="${{ matrix.job.features }}" PROFILE=release-small MULTICALL=y

        echo "After build, checking target/release-small/:"
        ls -la target/release-small/ | grep -E "(coreutils|^total)" || echo "Build may have failed"

        echo "Running make install..."
        echo "Before install - checking what we have:"
        ls -la target/release-small/coreutils 2>/dev/null || echo "No coreutils in target/release-small"

        # Run make install with verbose output to see what happens
        echo "About to run: make install DESTDIR=\"$INSTALL_DIR\" PREFIX=/usr PROFILE=release-small MULTICALL=y"
        echo "Expected install path: $INSTALL_DIR/usr/bin/coreutils"

        make install DESTDIR="$INSTALL_DIR" PREFIX=/usr PROFILE=release-small MULTICALL=y || {
          echo "Make install failed! Exit code: $?"
          echo "Let's see what happened:"
          ls -la "$INSTALL_DIR" 2>/dev/null || echo "Install directory doesn't exist"
          exit 1
        }

        echo "Make install completed successfully"

        # Debug: Show what was installed
        echo "=== Installation Debug ==="
        echo "Current directory: $(pwd)"
        echo "INSTALL_DIR: $INSTALL_DIR"
        echo "Checking if build succeeded..."
        if [ -f "target/release-small/coreutils" ]; then
          echo "✓ Build succeeded - coreutils binary exists in target/release-small/"
          ls -la target/release-small/coreutils
        else
          echo "✗ Build failed - no coreutils binary in target/release-small/"
          echo "Contents of target/release-small/:"
          ls -la target/release-small/ | head -20
          exit 1
        fi

        echo "Contents of installation directory:"
        find "$INSTALL_DIR" -type f 2>/dev/null | head -20 || echo "No files found in $INSTALL_DIR"

        echo "Checking standard installation paths..."
        ls -la "$INSTALL_DIR/usr/bin/" 2>/dev/null || echo "Directory $INSTALL_DIR/usr/bin/ not found"
        ls -la "$INSTALL_DIR/usr/local/bin/" 2>/dev/null || echo "Directory $INSTALL_DIR/usr/local/bin/ not found"
        ls -la "$INSTALL_DIR/bin/" 2>/dev/null || echo "Directory $INSTALL_DIR/bin/ not found"

        # Find where coreutils was actually installed
        echo "Searching for coreutils binary in installation directory..."
        # First try the expected location
        if [ -x "$INSTALL_DIR/usr/bin/coreutils" ]; then
          COREUTILS_BIN="$INSTALL_DIR/usr/bin/coreutils"
        else
          # Fallback: search for executable files named coreutils (excluding completion files)
          COREUTILS_BIN=$(find "$INSTALL_DIR" -path "*/bin/*" -name "coreutils" -type f 2>/dev/null | head -1)
        fi
        if [ -n "$COREUTILS_BIN" ]; then
          echo "Found coreutils at: $COREUTILS_BIN"
          export COREUTILS_BIN
        else
          echo "ERROR: coreutils binary not found in installation directory!"
          echo "Installation may have failed. Let's check the entire filesystem under install-dir:"
          find "$INSTALL_DIR" -type f 2>/dev/null | head -50

          # As a last resort, check if it's in the build directory
          if [ -f "target/release/coreutils" ]; then
            echo "Using binary from build directory as fallback"
            COREUTILS_BIN="$(pwd)/target/release/coreutils"
            export COREUTILS_BIN
          else
            exit 1
          fi
        fi

        echo "Testing installed multi-call binary functionality..."

        # Test calling utilities through coreutils binary
        echo "Testing: $COREUTILS_BIN ls --version"
        "$COREUTILS_BIN" ls --version

        echo "Testing: $COREUTILS_BIN cat --version"
        "$COREUTILS_BIN" cat --version

        echo "Testing: $COREUTILS_BIN touch --version"
        "$COREUTILS_BIN" touch --version

        # Test individual binaries (if they exist)
        LS_BIN="$INSTALL_DIR/usr/bin/ls"
        if [ -f "$LS_BIN" ]; then
          echo "Testing individual binary: $LS_BIN --version"
          "$LS_BIN" --version
        else
          echo "Individual ls binary not found (multi-call only mode)"
          # Check if symlinks exist
          if [ -L "$LS_BIN" ]; then
            echo "Found ls as symlink to: $(readlink -f "$LS_BIN")"
          fi
        fi

        echo "✓ Multi-call binary installation and functionality test passed"

  l10n_installation_test:
    name: L10n/Installation Test (Make & Cargo)
    runs-on: ${{ matrix.job.os }}
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    strategy:
      fail-fast: false
      matrix:
        job:
          - { os: ubuntu-latest  , features: "feat_os_unix" }
          - { os: macos-latest   , features: "feat_os_macos" }
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        ## Install/setup prerequisites
        case '${{ matrix.job.os }}' in
          ubuntu-*)
            sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
            # Generate French locale for testing
            sudo locale-gen --keep-existing fr_FR.UTF-8
            locale -a | grep -i fr || echo "French locale generation may have failed"
          ;;
          macos-*)
            brew install coreutils
          ;;
        esac
    - name: Test Make installation
      shell: bash
      run: |
        ## Test installation via make with DESTDIR
        echo "Testing make install with l10n features..."

        # Create installation directory
        MAKE_INSTALL_DIR="$PWD/make-install-dir"
        mkdir -p "$MAKE_INSTALL_DIR"

        # Build and install using make with DESTDIR
        make FEATURES="${{ matrix.job.features }}" PROFILE=release-small MULTICALL=y
        make install DESTDIR="$MAKE_INSTALL_DIR" PREFIX=/usr PROFILE=release-small MULTICALL=y

        # Verify installation
        echo "Testing make-installed binaries..."
        if [ -f "$MAKE_INSTALL_DIR/usr/bin/coreutils" ]; then
          echo "✓ coreutils binary installed via make successfully"
          "$MAKE_INSTALL_DIR/usr/bin/coreutils" --version
        else
          echo "✗ coreutils binary not found after make install"
          exit 1
        fi

        # Test utilities
        echo "Testing make-installed utilities..."
        "$MAKE_INSTALL_DIR/usr/bin/coreutils" ls --version
        "$MAKE_INSTALL_DIR/usr/bin/coreutils" cat --version
        "$MAKE_INSTALL_DIR/usr/bin/coreutils" touch --version

        # Test basic functionality
        echo "test content" > test.txt
        if "$MAKE_INSTALL_DIR/usr/bin/coreutils" cat test.txt | grep -q "test content"; then
          echo "✓ Basic functionality works"
        else
          echo "✗ Basic functionality failed"
          exit 1
        fi

        # Test French localization with make-installed binary (Ubuntu only)
        if [ "${{ matrix.job.os }}" = "ubuntu-latest" ]; then
          echo "Testing French localization with make-installed binary..."

          # Set French locale
          export LANG=fr_FR.UTF-8
          export LC_ALL=fr_FR.UTF-8

          echo "Testing ls --help with French locale..."
          ls_help=$("$MAKE_INSTALL_DIR/usr/bin/coreutils" ls --help 2>&1 || echo "Command failed")
          echo "ls help output (first 10 lines):"
          echo "$ls_help" | head -10

          # Check for specific French strings from ls fr-FR.ftl
          french_strings_found=0

          if echo "$ls_help" | grep -q "Lister le contenu des répertoires"; then
            echo "✓ Found French ls description: 'Lister le contenu des répertoires'"
            french_strings_found=$((french_strings_found + 1))
          fi

          if echo "$ls_help" | grep -q "Afficher les informations d'aide"; then
            echo "✓ Found French ls help text: 'Afficher les informations d'aide'"
            french_strings_found=$((french_strings_found + 1))
          fi

          if echo "$ls_help" | grep -q "FICHIER"; then
            echo "✓ Found French usage pattern: 'FICHIER'"
            french_strings_found=$((french_strings_found + 1))
          fi

          echo "Testing cat --help with French locale..."
          cat_help=$("$MAKE_INSTALL_DIR/usr/bin/coreutils" cat --help 2>&1 || echo "Command failed")
          echo "cat help output (first 5 lines):"
          echo "$cat_help" | head -5

          if echo "$cat_help" | grep -q "Concaténer"; then
            echo "✓ Found French cat description containing: 'Concaténer'"
            french_strings_found=$((french_strings_found + 1))
          fi

          echo "Testing error messages with French locale..."
          error_output=$("$MAKE_INSTALL_DIR/usr/bin/coreutils" ls /nonexistent_test_directory 2>&1 || echo "Expected error occurred")
          echo "Error output: $error_output"

          if echo "$error_output" | grep -q "impossible d'accéder à"; then
            echo "✓ Found French error message: 'impossible d'accéder à'"
            french_strings_found=$((french_strings_found + 1))
          fi

          # Final validation
          echo "French strings found: $french_strings_found"
          if [ "$french_strings_found" -gt 0 ]; then
            echo "✓ SUCCESS: French localization test passed with make-installed binary - found $french_strings_found French strings"
          else
            echo "✗ ERROR: No French strings detected with make-installed binary"
            exit 1
          fi
        else
          echo "Skipping French localization test on ${{ matrix.job.os }} (no French locale available)"
        fi

        echo "✓ Make installation test passed"
    - name: Test Cargo installation
      shell: bash
      run: |
        ## Test installation via cargo install with DESTDIR-like approach
        echo "Testing cargo install with l10n features..."

        # Create installation directory
        CARGO_INSTALL_DIR="$PWD/cargo-install-dir"
        mkdir -p "$CARGO_INSTALL_DIR"

        # Install using cargo with l10n features
        cargo install --path . --features ${{ matrix.job.features }} --root "$CARGO_INSTALL_DIR" --locked

        # Verify installation
        echo "Testing cargo-installed binaries..."
        if [ -f "$CARGO_INSTALL_DIR/bin/coreutils" ]; then
          echo "✓ coreutils binary installed successfully"
          "$CARGO_INSTALL_DIR/bin/coreutils" --version
        else
          echo "✗ coreutils binary not found after cargo install"
          exit 1
        fi

        # Test utilities
        echo "Testing installed utilities..."
        "$CARGO_INSTALL_DIR/bin/coreutils" ls --version
        "$CARGO_INSTALL_DIR/bin/coreutils" cat --version
        "$CARGO_INSTALL_DIR/bin/coreutils" touch --version

        # Test basic functionality
        echo "test content" > test.txt
        if "$CARGO_INSTALL_DIR/bin/coreutils" cat test.txt | grep -q "test content"; then
          echo "✓ Basic functionality works"
        else
          echo "✗ Basic functionality failed"
          exit 1
        fi

        echo "✓ Cargo installation test passed"
    - name: Download additional locales from coreutils-l10n
      shell: bash
      run: |
        ## Download additional locale files from coreutils-l10n repository
        echo "Downloading additional locale files from coreutils-l10n..."
        git clone --depth=1 https://github.com/uutils/coreutils-l10n.git coreutils-l10n-repo

        # Create installation directory
        CARGO_INSTALL_DIR="$PWD/cargo-install-dir"

        # Create locale directory for cargo install
        LOCALE_DIR="$CARGO_INSTALL_DIR/share/locales"
        mkdir -p "$LOCALE_DIR"

        # Debug: Check structure of l10n repo
        echo "Checking structure of coreutils-l10n-repo:"
        ls -la coreutils-l10n-repo/ | head -10
        echo "Looking for locales directory:"
        find coreutils-l10n-repo -name "*.ftl" -type f 2>/dev/null | head -10 || true
        echo "Checking specific utilities:"
        ls -la coreutils-l10n-repo/src/uu/ls/locales/ 2>/dev/null || echo "No ls directory in correct location"
        find coreutils-l10n-repo -path "*/ls/*.ftl" 2>/dev/null | head -5 || echo "No ls ftl files found"

        # Copy non-English locale files from l10n repo
        for util_dir in src/uu/*/; do
          util_name=$(basename "$util_dir")
          l10n_util_dir="coreutils-l10n-repo/src/uu/$util_name/locales"

          if [ -d "$l10n_util_dir" ]; then
            echo "Installing locales for $util_name..."
            mkdir -p "$LOCALE_DIR/$util_name"

            for locale_file in "$l10n_util_dir"/*.ftl; do
              if [ -f "$locale_file" ]; then
                filename=$(basename "$locale_file")
                # Skip English locale files (they are embedded)
                if [ "$filename" != "en-US.ftl" ]; then
                  cp "$locale_file" "$LOCALE_DIR/$util_name/"
                  echo "  Installed $filename to $LOCALE_DIR/$util_name/"
                fi
              fi
            done
          else
            # Debug: Show what's not found
            if [ "$util_name" = "ls" ] || [ "$util_name" = "cat" ]; then
              echo "WARNING: No l10n directory found for $util_name at $l10n_util_dir"
            fi
          fi
        done

        # Debug: Show what was actually installed
        echo "Files installed in locale directory:"
        find "$LOCALE_DIR" -name "*.ftl" 2>/dev/null | head -10 || true

        # Fallback: If no files were installed from l10n repo, try copying from main repo
        if [ -z "$(find "$LOCALE_DIR" -name "*.ftl" 2>/dev/null)" ]; then
          echo "No files found from l10n repo, trying fallback from main repository..."
          for util_dir in src/uu/*/; do
            util_name=$(basename "$util_dir")
            if [ -d "$util_dir/locales" ]; then
              echo "Copying locales for $util_name from main repo..."
              mkdir -p "$LOCALE_DIR/$util_name"
              cp "$util_dir/locales"/*.ftl "$LOCALE_DIR/$util_name/" 2>/dev/null || true
            fi
          done
          echo "Files after fallback:"
          find "$LOCALE_DIR" -name "*.ftl" 2>/dev/null | head -10 || true
        fi

        echo "✓ Additional locale files installed"
    - name: Test French localization after cargo install
      shell: bash
      run: |
        ## Test French localization with cargo-installed binary and downloaded locales
        echo "Testing French localization with cargo-installed binary..."

        # Set installation directories
        CARGO_INSTALL_DIR="$PWD/cargo-install-dir"
        LOCALE_DIR="$CARGO_INSTALL_DIR/share/locales"

        echo "Checking installed binary..."
        if [ ! -f "$CARGO_INSTALL_DIR/bin/coreutils" ]; then
          echo "✗ coreutils binary not found"
          exit 1
        fi

        echo "Checking locale files..."
        echo "LOCALE_DIR is: $LOCALE_DIR"
        echo "Checking if locale directory exists:"
        ls -la "$LOCALE_DIR" 2>/dev/null || echo "Locale directory not found"
        echo "Contents of locale directory:"
        find "$LOCALE_DIR" -name "*.ftl" 2>/dev/null | head -10 || echo "No locale files found"
        echo "Looking for ls locale files specifically:"
        ls -la "$LOCALE_DIR/ls/" 2>/dev/null || echo "No ls locale directory"

        # Test French localization
        export LANG=fr_FR.UTF-8
        export LC_ALL=fr_FR.UTF-8

        echo "Testing ls --help with French locale..."
        ls_help=$("$CARGO_INSTALL_DIR/bin/coreutils" ls --help 2>&1 || echo "Command failed")
        echo "ls help output (first 10 lines):"
        echo "$ls_help" | head -10

        # Check for specific French strings from ls fr-FR.ftl
        french_strings_found=0

        if echo "$ls_help" | grep -q "Lister le contenu des répertoires"; then
          echo "✓ Found French ls description: 'Lister le contenu des répertoires'"
          french_strings_found=$((french_strings_found + 1))
        fi

        if echo "$ls_help" | grep -q "Afficher les informations d'aide"; then
          echo "✓ Found French ls help text: 'Afficher les informations d'aide'"
          french_strings_found=$((french_strings_found + 1))
        fi

        if echo "$ls_help" | grep -q "FICHIER"; then
          echo "✓ Found French usage pattern: 'FICHIER'"
          french_strings_found=$((french_strings_found + 1))
        fi

        echo "Testing cat --help with French locale..."
        cat_help=$("$CARGO_INSTALL_DIR/bin/coreutils" cat --help 2>&1 || echo "Command failed")
        echo "cat help output (first 5 lines):"
        echo "$cat_help" | head -5

        if echo "$cat_help" | grep -q "Concaténer"; then
          echo "✓ Found French cat description containing: 'Concaténer'"
          french_strings_found=$((french_strings_found + 1))
        fi

        echo "Testing error messages with French locale..."
        error_output=$("$CARGO_INSTALL_DIR/bin/coreutils" ls /nonexistent_test_directory 2>&1 || echo "Expected error occurred")
        echo "Error output: $error_output"

        if echo "$error_output" | grep -q "impossible d'accéder à"; then
          echo "✓ Found French error message: 'impossible d'accéder à'"
          french_strings_found=$((french_strings_found + 1))
        fi

        # Verify the binary works in French locale
        version_output=$("$CARGO_INSTALL_DIR/bin/coreutils" --version 2>&1)
        if [ $? -eq 0 ]; then
          echo "✓ Binary executes successfully with French locale"
          echo "Version output: $version_output"
        else
          echo "✗ Binary failed to execute with French locale"
          exit 1
        fi

        # Final validation
        echo "French strings found: $french_strings_found"
        if [ "$french_strings_found" -gt 0 ]; then
          echo "✓ SUCCESS: French localization test passed after cargo install - found $french_strings_found French strings"
        else
          echo "✗ ERROR: No French strings detected with cargo-installed binary"
          echo "This indicates an issue with locale loading from downloaded files"
          exit 1
        fi

        echo "✓ French localization verification completed"

  l10n_locale_support_verification:
    name: L10n/Locale Support Verification
    runs-on: ubuntu-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        ## Install/setup prerequisites including locale support
        sudo apt-get -y update
        sudo apt-get -y install libselinux1-dev

        # Generate multiple locales for testing
        sudo locale-gen --keep-existing en_US.UTF-8 fr_FR.UTF-8 de_DE.UTF-8 es_ES.UTF-8
        locale -a | grep -E "(en_US|fr_FR|de_DE|es_ES)" || echo "Some locales may not be available"
    - name: Install binaries with locale support
      shell: bash
      run: |
        ## Install both multi-call and individual binaries using make
        echo "Installing binaries with full locale support..."

        # Create installation directory
        INSTALL_DIR="$PWD/install-dir"
        mkdir -p "$INSTALL_DIR"

        # Build and install using make with DESTDIR
        make FEATURES="feat_os_unix" PROFILE=release-small MULTICALL=y
        make install DESTDIR="$INSTALL_DIR" PREFIX=/usr PROFILE=release-small MULTICALL=y

        # Debug: Show what was installed
        echo "Contents of installation directory:"
        find "$INSTALL_DIR" -type f -name "coreutils" -o -name "ls" 2>/dev/null | head -20 || true
        echo "Looking for binaries in: $INSTALL_DIR/usr/bin/"
        ls -la "$INSTALL_DIR/usr/bin/" || echo "Directory not found"

        echo "✓ Installation completed"
    - name: Verify locale detection and startup
      shell: bash
      run: |
        ## Test that installed binaries start correctly with different locales
        echo "Testing locale detection and startup..."

        # Set installation directory path
        INSTALL_DIR="$PWD/install-dir"

        # Test with different locales
        locales_to_test=("C" "en_US.UTF-8" "fr_FR.UTF-8")

        for locale in "${locales_to_test[@]}"; do
          echo "Testing with locale: $locale"

          # Test multi-call binary startup
          if LC_ALL="$locale" "$INSTALL_DIR/usr/bin/coreutils" --version >/dev/null 2>&1; then
            echo "✓ Multi-call binary starts successfully with locale: $locale"
          else
            echo "✗ Multi-call binary failed to start with locale: $locale"
            exit 1
          fi

          # Test individual binary startup (if available)
          if [ -f "$INSTALL_DIR/usr/bin/ls" ]; then
            if LC_ALL="$locale" "$INSTALL_DIR/usr/bin/ls" --version >/dev/null 2>&1; then
              echo "✓ Individual binary (ls) starts successfully with locale: $locale"
            else
              echo "✗ Individual binary (ls) failed to start with locale: $locale"
              exit 1
            fi
          else
            echo "Individual ls binary not found (multi-call only mode)"
          fi

          # Test that help text appears (even if not localized)
          help_output=$(LC_ALL="$locale" "$INSTALL_DIR/usr/bin/coreutils" ls --help 2>&1)
          if echo "$help_output" | grep -q -i "usage\|list"; then
            echo "✓ Help text appears correctly with locale: $locale"
          else
            echo "✗ Help text missing or malformed with locale: $locale"
            echo "Help output: $help_output"
            exit 1
          fi
        done

        echo "✓ All locale startup tests passed"
    - name: Test locale-specific functionality
      shell: bash
      run: |
        ## Test locale-specific behavior with installed binaries
        echo "Testing locale-specific functionality..."

        # Set installation directory path
        INSTALL_DIR="$PWD/install-dir"

        # Test with French locale (if available)
        if locale -a | grep -q fr_FR.UTF-8; then
          echo "Testing French locale functionality..."

          export LANG=fr_FR.UTF-8
          export LC_ALL=fr_FR.UTF-8

          # Test that the program runs successfully with French locale
          french_version_output=$("$INSTALL_DIR/usr/bin/coreutils" --version 2>&1)
          if [ $? -eq 0 ]; then
            echo "✓ Program runs successfully with French locale"
            echo "Version output: $french_version_output"
          else
            echo "✗ Program failed with French locale"
            echo "Error output: $french_version_output"
            exit 1
          fi

          # Test basic functionality with French locale
          temp_file=$(mktemp)
          echo "test content" > "$temp_file"

          if "$INSTALL_DIR/usr/bin/coreutils" cat "$temp_file" | grep -q "test content"; then
            echo "✓ Basic file operations work with French locale"
          else
            echo "✗ Basic file operations failed with French locale"
            exit 1
          fi

          rm -f "$temp_file"

          # Test that French translations are actually working
          echo "Testing French translations..."
          french_strings_found=0

          echo "Testing ls --help with French locale..."
          ls_help=$("$INSTALL_DIR/usr/bin/coreutils" ls --help 2>&1 || echo "Command failed")
          echo "ls help output (first 10 lines):"
          echo "$ls_help" | head -10

          # Check for actual French strings that appear in ls --help output
          if echo "$ls_help" | grep -q "Lister le contenu des répertoires"; then
            echo "✓ Found French ls description: 'Lister le contenu des répertoires'"
            french_strings_found=$((french_strings_found + 1))
          fi
          if echo "$ls_help" | grep -q "Ignorer les fichiers et répertoires commençant par"; then
            echo "✓ Found French explanation: 'Ignorer les fichiers et répertoires commençant par'"
            french_strings_found=$((french_strings_found + 1))
          fi
          if echo "$ls_help" | grep -q "Afficher les informations d'aide"; then
            echo "✓ Found French help text: 'Afficher les informations d'aide'"
            french_strings_found=$((french_strings_found + 1))
          fi
          if echo "$ls_help" | grep -q "FICHIER"; then
            echo "✓ Found French usage pattern: 'FICHIER'"
            french_strings_found=$((french_strings_found + 1))
          fi
          if echo "$ls_help" | grep -q "Définir le format d'affichage"; then
            echo "✓ Found French option description: 'Définir le format d'affichage'"
            french_strings_found=$((french_strings_found + 1))
          fi

          echo "Testing cat --help with French locale..."
          cat_help=$("$INSTALL_DIR/usr/bin/coreutils" cat --help 2>&1 || echo "Command failed")
          echo "cat help output (first 5 lines):"
          echo "$cat_help" | head -5

          # Check for French strings in cat help
          if echo "$cat_help" | grep -q "Concaténer"; then
            echo "✓ Found French cat description containing: 'Concaténer'"
            french_strings_found=$((french_strings_found + 1))
          fi

          echo "Testing with error messages..."
          error_output=$("$INSTALL_DIR/usr/bin/coreutils" ls /nonexistent_directory_for_testing 2>&1 || echo "Expected error occurred")
          echo "Error output: $error_output"

          # Check for French error messages
          if echo "$error_output" | grep -q "impossible d'accéder à"; then
            echo "✓ Found French error message: 'impossible d'accéder à'"
            french_strings_found=$((french_strings_found + 1))
          fi
          if echo "$error_output" | grep -q "Aucun fichier ou répertoire de ce type"; then
            echo "✓ Found French error text: 'Aucun fichier ou répertoire de ce type'"
            french_strings_found=$((french_strings_found + 1))
          fi

          # Test version output
          echo "Testing --version with French locale..."
          version_output=$("$INSTALL_DIR/usr/bin/coreutils" --version 2>&1)
          echo "Version output: $version_output"

          # Final validation - ensure we found at least some French strings
          echo "French strings found: $french_strings_found"
          if [ "$french_strings_found" -gt 0 ]; then
            echo "✓ SUCCESS: French locale translation test passed - found $french_strings_found French strings"
          else
            echo "✗ ERROR: No French strings were detected in installed binaries"
            echo "This indicates that French translations are not working properly with installed binaries"
            exit 1
          fi
        else
          echo "French locale not available, skipping French-specific tests"
        fi

        # Test with standard build configuration
        echo "Testing standard build configuration..."
        cd "$GITHUB_WORKSPACE"

        # Create separate installation directory for standard build
        STANDARD_BUILD_INSTALL_DIR="$PWD/standard-build-install-dir"
        mkdir -p "$STANDARD_BUILD_INSTALL_DIR"

        # Clean and build standard version
        make clean
        make FEATURES="feat_os_unix" PROFILE=release-small MULTICALL=y
        make install DESTDIR="$STANDARD_BUILD_INSTALL_DIR" PREFIX=/usr PROFILE=release-small MULTICALL=y

        # Verify standard build binary works
        if "$STANDARD_BUILD_INSTALL_DIR/usr/bin/coreutils" --version >/dev/null 2>&1; then
          echo "✓ Standard build works correctly"
        else
          echo "✗ Standard build failed"
          exit 1
        fi

        echo "✓ All locale-specific functionality tests passed"
      env:
        RUST_BACKTRACE: "1"

  l10n_embedded_locale_regression_test:
    name: L10n/Embedded Locale Regression Test
    runs-on: ubuntu-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install/setup prerequisites
      shell: bash
      run: |
        sudo apt-get -y update && sudo apt-get -y install libselinux1-dev
    - name: Test embedded locale functionality for individual utilities
      shell: bash
      run: |
        bash util/test_locale_regression.sh

  l10n_locale_embedding_cat:
    name: L10n/Locale Embedding - Cat Utility
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
      with:
        # Use different cache key for each build to avoid conflicts
        key: cat-locale-embedding
    - name: Install prerequisites
      run: sudo apt-get -y update && sudo apt-get -y install libselinux1-dev
    - name: Build cat with targeted locale embedding
      run: UUCORE_TARGET_UTIL=cat cargo build -p uu_cat --release
    - name: Verify cat locale count
      run: |
        locale_file=$(find target/release/build -name "embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find embedded_locales.rs"
          exit 1
        fi
        locale_count=$(grep -c '/en-US\.ftl' "$locale_file")
        echo "Cat binary has $locale_count embedded locales"
        if [ "$locale_count" -le 5 ]; then
          echo "✓ SUCCESS: Cat uses targeted locale embedding ($locale_count files)"
        else
          echo "✗ FAILURE: Cat has too many locale files ($locale_count). Expected ≤ 5"
          exit 1
        fi

  l10n_locale_embedding_ls:
    name: L10n/Locale Embedding - Ls Utility
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
      with:
        # Use different cache key for each build to avoid conflicts
        key: ls-locale-embedding
    - name: Install prerequisites
      run: sudo apt-get -y update && sudo apt-get -y install libselinux1-dev
    - name: Build ls with targeted locale embedding
      run: UUCORE_TARGET_UTIL=ls cargo build -p uu_ls --release
    - name: Verify ls locale count
      run: |
        locale_file=$(find target/release/build -name "embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find embedded_locales.rs"
          exit 1
        fi
        locale_count=$(grep -c '/en-US\.ftl' "$locale_file")
        echo "Ls binary has $locale_count embedded locales"
        if [ "$locale_count" -le 5 ]; then
          echo "✓ SUCCESS: Ls uses targeted locale embedding ($locale_count files)"
        else
          echo "✗ FAILURE: Ls has too many locale files ($locale_count). Expected ≤ 5"
          exit 1
        fi

  l10n_locale_embedding_multicall:
    name: L10n/Locale Embedding - Multicall Binary
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
      with:
        # Use different cache key for each build to avoid conflicts
        key: multicall-locale-embedding
    - name: Install prerequisites
      run: sudo apt-get -y update && sudo apt-get -y install libselinux1-dev
    - name: Build multicall binary with all locales
      run: cargo build --release
    - name: Verify multicall locale count
      run: |
        locale_file=$(find target/release/build -name "embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find embedded_locales.rs"
          exit 1
        fi
        locale_count=$(grep -c '/en-US\.ftl' "$locale_file")
        echo "Multicall binary has $locale_count embedded locales"
        echo "First 10 locales:"
        grep -o '[a-z_][a-z_0-9]*/en-US\.ftl' "$locale_file" | head -10
        if [ "$locale_count" -ge 80 ]; then
          echo "✓ SUCCESS: Multicall has all locales ($locale_count files)"
        else
          echo "✗ FAILURE: Multicall has too few locale files ($locale_count). Expected ≥ 80"
          exit 1
        fi

  l10n_locale_embedding_cargo_install:
    name: L10n/Locale Embedding - Cargo Install
    runs-on: ubuntu-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
      RUSTC_WRAPPER: "sccache"
      CARGO_INCREMENTAL: 0
    steps:
    - uses: actions/checkout@v6
      with:
        persist-credentials: false
    - uses: dtolnay/rust-toolchain@stable
    - uses: Swatinem/rust-cache@v2
      with:
        key: cargo-install-locale-embedding
    - name: Run sccache-cache
      uses: mozilla-actions/sccache-action@v0.0.9
    - name: Install prerequisites
      run: |
        sudo apt-get -y update
        sudo apt-get -y install libselinux1-dev
        # Generate French locale for testing
        sudo locale-gen --keep-existing fr_FR.UTF-8
        locale -a | grep -i fr || exit 1

    - name: Test English locale embedding (default)
      run: |
        export LANG=en_US.UTF-8
        export LC_ALL=en_US.UTF-8

        echo "Building uu_yes with LANG=$LANG"
        cargo build --package uu_yes --release

        # Find the generated embedded_locales.rs
        locale_file=$(find target/release/build -path "*/uu_yes-*/out/embedded_locales.rs" -o -path "*/uucore-*/out/embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find embedded_locales.rs"
          exit 1
        fi

        echo "Found embedded_locales.rs at: $locale_file"
        echo "Checking embedded locales..."

        # Should contain en-US
        if grep -q 'yes/en-US\.ftl' "$locale_file" || grep -q 'uucore/en-US\.ftl' "$locale_file"; then
          echo "✓ Found en-US locale (fallback)"
        else
          echo "✗ ERROR: en-US locale not found"
          exit 1
        fi

        # Should NOT contain fr-FR when building with en_US.UTF-8
        if grep -q 'yes/fr-FR\.ftl' "$locale_file" || grep -q 'uucore/fr-FR\.ftl' "$locale_file"; then
          echo "✗ ERROR: Unexpectedly found fr-FR locale when LANG=en_US.UTF-8"
          exit 1
        else
          echo "✓ Correctly omitted fr-FR locale"
        fi

        echo "✓ SUCCESS: English locale embedding working correctly"

    - name: Test French locale embedding (system locale)
      run: |
        export LANG=fr_FR.UTF-8
        export LC_ALL=fr_FR.UTF-8

        # Clean previous build to ensure fresh compile
        cargo clean -p uu_yes
        cargo clean -p uucore

        echo "Building uu_yes with LANG=$LANG"
        cargo build --package uu_yes --release

        # Find the generated embedded_locales.rs
        locale_file=$(find target/release/build -path "*/uu_yes-*/out/embedded_locales.rs" -o -path "*/uucore-*/out/embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find embedded_locales.rs"
          exit 1
        fi

        echo "Found embedded_locales.rs at: $locale_file"
        echo "Checking embedded locales..."

        # Should contain en-US (fallback)
        if grep -q 'yes/en-US\.ftl' "$locale_file" || grep -q 'uucore/en-US\.ftl' "$locale_file"; then
          echo "✓ Found en-US locale (fallback)"
        else
          echo "✗ ERROR: en-US locale not found"
          exit 1
        fi

        # Should contain fr-FR when building with fr_FR.UTF-8
        if grep -q 'yes/fr-FR\.ftl' "$locale_file" || grep -q 'uucore/fr-FR\.ftl' "$locale_file"; then
          echo "✓ Found fr-FR locale (system locale from LANG)"
        else
          echo "Note: fr-FR locale not found - this is expected if French translation doesn't exist yet"
          echo "::notice::French locale for 'yes' utility may not be available"
        fi

        echo "✓ SUCCESS: System locale detection working correctly"

    - name: Test locale count is reasonable
      run: |
        export LANG=fr_FR.UTF-8
        cargo clean -p uu_yes
        cargo build --package uu_yes --release

        locale_file=$(find target/release/build -path "*/uucore-*/out/embedded_locales.rs" | head -1)
        if [ -z "$locale_file" ]; then
          echo "ERROR: Could not find uucore embedded_locales.rs"
          exit 1
        fi

        # Count embedded locales (should be en-US + system locale, not all locales)
        locale_count=$(grep -c '/en-US\.ftl\|/fr-FR\.ftl' "$locale_file" || echo "0")
        echo "uu_yes has $locale_count embedded locale entries for yes utility"

        # For a single utility build, should have minimal locales (en-US + optionally system locale)
        # Not the full multicall set
        total_match_count=$(grep -c '=> Some(r###' "$locale_file" || echo "0")
        echo "Total embedded entries: $total_match_count"

        if [ "$total_match_count" -le 10 ]; then
          echo "✓ SUCCESS: Locale embedding is targeted ($total_match_count entries)"
        else
          echo "::warning::More locales than expected ($total_match_count entries)"
          echo "This might be expected for utility + uucore locales"
        fi

  l10n_locale_embedding_regression_test:
    name: L10n/Locale Embedding Regression Test
    runs-on: ubuntu-latest
    needs: [l10n_locale_embedding_cat, l10n_locale_embedding_ls, l10n_locale_embedding_multicall, l10n_locale_embedding_cargo_install]
    steps:
    - name: All locale embedding tests passed
      run: echo "✓ All locale embedding tests passed successfully"