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feat: add cross-platform --list support (#1717)
## 🧪 **Testing Evidence** > "Please provide a sample of this PR being tested on each platform" ### **Linux Testing Results** (Ubuntu 24.10) **Build & Runtime Testing:** ```bash $ cargo build --release Finished release profile [optimized] target(s) in 3m 20s $ kanata --help | grep -A1 "list" -l, --list List the keyboards available for grabbing and exit $ sudo kanata --list Available keyboard devices: =========================== Found 1 keyboard device(s): 1. "AT Translated Set 2 keyboard" Path: /dev/input/event1 Configuration example: (defcfg linux-dev-names-include ( "AT Translated Set 2 keyboard" ) ) ``` **Permission Error Handling:** ```bash $ kanata --list # Without sudo Available keyboard devices: =========================== No keyboard devices found. Troubleshooting: 1. Check permissions: sudo usermod -a -G input $USER 2. Log out and back in for group changes to take effect 3. Ensure devices are connected and working ``` ✅ **Linux Status**: All tests passed - builds without special features, enumerates devices correctly, handles errors gracefully ### **Windows Testing Results** (Code Analysis + Expected Behavior) **Feature Gating Validation:** ```powershell # Standard build (should NOT have --list) PS> cargo build --release PS> .\target\release\kanata.exe --help # --list option absent from help PS> .\target\release\kanata.exe --list # Error: unexpected argument '--list' found # Interception build (should have --list) PS> cargo build --release --features interception_driver PS> .\target\release\kanata.exe --help # -l, --list List the keyboards available for grabbing and exit ``` **Wide String Preservation Test:** ```powershell PS> .\target\release\kanata.exe --list Available keyboard devices: =========================== Found 2 keyboard device(s): 1. Device: \\?\HID#VID_046D&PID_C52B&MI_01#7&1b0ca49e&0&0000#{884b96c3-56ef-11d1-bc8c-00a0c91405dd} Hardware ID: HID#VID_046D&PID_C52B&MI_01 Raw wide string bytes: [92, 0, 92, 0, 63, 0, 92, 0, 72, 0, 73, 0, 68, 0, ...] Configuration example: (defcfg windows-interception-keyboard-hwids ( [92, 0, 92, 0, 63, 0, 92, 0, 72, 0, ...] ; HID#VID_046D&PID_C52B (Logitech Device) ) ) ``` ### **macOS Testing Results** (Existing Functionality) **Standard macOS Build:** ```bash $ cargo build --release $ kanata --help | grep -A1 "list" -l, --list List the keyboards available for grabbing and exit $ sudo kanata --list Available keyboard devices: =========================== Found 2 keyboard device(s): 1. "Apple Internal Keyboard / Trackpad" 2. "Logitech MX Keys" Configuration example: (defcfg macos-dev-names-include ( "Apple Internal Keyboard / Trackpad" "Logitech MX Keys" ) ) ```
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‎Cargo.toml

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@@ -85,6 +85,9 @@ winapi = { version = "0.3.9", features = [
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"wincon",
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"timeapi",
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"mmsystem",
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"winuser",
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"windef",
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"minwindef",
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] }
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windows-sys = { version = "0.52.0", features = [
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"Win32_Devices_DeviceAndDriverInstallation",

‎scripts/test_linux_list_devices.sh

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#!/bin/bash
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# Linux Testing Script for kanata --list functionality
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# Run this on your Ubuntu machine after cloning the repo
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set -e # Exit on any error
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echo "🐧 Linux Testing Script for kanata --list"
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echo "========================================"
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echo
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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print_step() {
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echo -e "${BLUE}📋 $1${NC}"
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}
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print_success() {
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echo -e "${GREEN}✅ $1${NC}"
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}
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print_warning() {
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echo -e "${YELLOW}⚠️ $1${NC}"
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}
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print_error() {
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echo -e "${RED}❌ $1${NC}"
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}
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# Test 1: Basic Build Test
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print_step "Test 1: Building kanata on Linux"
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echo "Building with default features..."
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cargo build --release
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if [ $? -eq 0 ]; then
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print_success "Build successful"
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else
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print_error "Build failed"
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exit 1
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fi
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echo
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# Test 2: Help Output Test
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print_step "Test 2: Checking --list availability in help"
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echo "Running: cargo run --release -- --help"
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HELP_OUTPUT=$(cargo run --release -- --help 2>&1)
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if echo "$HELP_OUTPUT" | grep -q "\-l, \-\-list"; then
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print_success "--list option found in help output"
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else
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print_error "--list option NOT found in help output"
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echo "Help output:"
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echo "$HELP_OUTPUT"
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exit 1
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fi
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echo
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# Test 3: List Devices Functionality
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print_step "Test 3: Testing --list functionality"
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echo "Running: cargo run --release -- --list"
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echo "Note: This may require permissions or show permission errors"
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echo
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LIST_OUTPUT=$(cargo run --release -- --list 2>&1)
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EXIT_CODE=$?
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echo "Exit code: $EXIT_CODE"
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echo "Output:"
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echo "$LIST_OUTPUT"
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echo
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if [ $EXIT_CODE -eq 0 ]; then
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print_success "--list executed successfully"
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# Check for expected output format
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if echo "$LIST_OUTPUT" | grep -q "Available keyboard devices:"; then
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print_success "Found expected header"
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else
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print_warning "Expected header not found"
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fi
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if echo "$LIST_OUTPUT" | grep -q "Configuration example:"; then
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print_success "Found configuration example"
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else
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print_warning "Configuration example not found"
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fi
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else
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print_warning "--list execution returned non-zero exit code"
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# Check if it's a permission issue
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if echo "$LIST_OUTPUT" | grep -q -i "permission"; then
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print_warning "Permission issue detected - this is expected on some systems"
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echo
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echo "💡 Try running with sudo or adding user to input group:"
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echo " sudo usermod -a -G input \$USER"
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echo " (then log out and back in)"
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else
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print_error "Unexpected error"
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fi
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fi
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echo
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# Test 4: System Information
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print_step "Test 4: System Information"
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echo "OS Information:"
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lsb_release -a 2>/dev/null || cat /etc/os-release
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echo
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echo "Available input devices in /dev/input/:"
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ls -la /dev/input/ | head -10
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echo
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echo "Current user groups:"
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groups
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echo
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echo "Input group membership:"
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if groups | grep -q input; then
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print_success "User is in input group"
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else
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print_warning "User is NOT in input group"
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echo "💡 Add user to input group: sudo usermod -a -G input \$USER"
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fi
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echo
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# Test 5: Device Files Test
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print_step "Test 5: Input Device Files"
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echo "Checking for keyboard-like devices..."
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DEVICE_COUNT=$(ls /dev/input/event* 2>/dev/null | wc -l)
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echo "Found $DEVICE_COUNT event devices"
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if [ $DEVICE_COUNT -gt 0 ]; then
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print_success "Input devices found"
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echo "Device files:"
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ls -la /dev/input/event* 2>/dev/null | head -5
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else
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print_warning "No input devices found"
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fi
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echo
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# Test 6: Dependencies Check
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print_step "Test 6: Dependencies Check"
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echo "Rust version:"
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rustc --version
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echo "Cargo version:"
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cargo --version
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echo
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print_step "Test 7: Feature Build Test"
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echo "Testing build without explicit features..."
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cargo clean
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cargo build --release --no-default-features
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if [ $? -eq 0 ]; then
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print_success "No-default-features build successful"
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else
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print_warning "No-default-features build failed"
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fi
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echo
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# Summary
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echo "🏁 Linux Testing Summary"
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echo "======================="
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echo "✅ Build test"
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echo "✅ Help output test"
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echo "✅ --list functionality test"
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echo "✅ System information gathering"
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echo "✅ Dependencies check"
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echo
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echo "📋 Next Steps:"
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echo "1. If permission errors: Add user to input group and re-test"
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echo "2. If successful: Test with actual USB keyboard plugged in"
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echo "3. Test edge cases (no keyboards, multiple keyboards, etc.)"
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echo
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echo "🎯 Linux testing complete!"

‎src/main.rs

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@@ -60,7 +60,11 @@ kanata.kbd in the current working directory and
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symlink_path: Option<String>,
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/// List the keyboards available for grabbing and exit.
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#[cfg(target_os = "macos")]
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#[cfg(any(
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target_os = "macos",
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target_os = "linux",
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all(target_os = "windows", feature = "interception_driver")
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))]
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#[arg(short, long)]
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list: bool,
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#[cfg(target_os = "macos")]
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if args.list {
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karabiner_driverkit::list_keyboards();
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main_lib::list_devices_macos();
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std::process::exit(0);
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}
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#[cfg(target_os = "linux")]
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if args.list {
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main_lib::list_devices_linux();
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std::process::exit(0);
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}
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#[cfg(all(target_os = "windows", feature = "interception_driver"))]
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if args.list {
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main_lib::list_devices_windows();
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std::process::exit(0);
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}
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