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flake.nix: add macOS (Darwin) support #393

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89 changes: 65 additions & 24 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -13,13 +13,28 @@
inherit system;
};

# Map Nix system to Qt arch naming
qtArch = {
inherit (pkgs) lib stdenv;

# Platform detection
isDarwin = stdenv.isDarwin;
isLinux = stdenv.isLinux;

# Map Nix system to architecture names used in bundled libdfuprog (Linux only)
dfuprogArch = {
"x86_64-linux" = "x86_64";
"aarch64-linux" = "arm64";
"i686-linux" = "i386";
"armv7l-linux" = "arm";
}.${system} or "x86_64";
}.${system} or null;

# Library file extension differs between platforms
libExt = if isDarwin then "dylib" else "so";

# Build directory differs between platforms
buildDir = if isDarwin then "build_mac" else "build_linux";

# Library path environment variable differs between platforms
libPathVar = if isDarwin then "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH";

in
{
Expand Down Expand Up @@ -48,8 +63,8 @@

# OpenMP support for fftw3_omp
llvmPackages.openmp

# For building
] ++ lib.optionals isLinux [
# For building on Linux
gcc
];

Expand All @@ -59,10 +74,12 @@
echo "║ EspoTek Labrador Development Environment ║"
echo "╚══════════════════════════════════════════════════════════════════╝"
echo ""
echo "Platform: ${if isDarwin then "macOS" else "Linux"}"
echo ""
echo "To build and install locally:"
echo " cd Desktop_Interface"
echo " qmake PREFIX=\$PWD/_install"
echo " make -j\$(nproc)"
echo " make -j\$(nproc 2>/dev/null || sysctl -n hw.ncpu)"
echo " make install"
echo ""
echo "To run after installing:"
Expand All @@ -72,7 +89,11 @@
echo ""

# Ensure the bundled libdfuprog can be found
export LD_LIBRARY_PATH="$PWD/Desktop_Interface/build_linux/libdfuprog/lib/${qtArch}:$LD_LIBRARY_PATH"
${if isDarwin then ''
export DYLD_LIBRARY_PATH="$PWD/Desktop_Interface/${buildDir}/libdfuprog/lib:$DYLD_LIBRARY_PATH"
'' else ''
export LD_LIBRARY_PATH="$PWD/Desktop_Interface/${buildDir}/libdfuprog/lib/${dfuprogArch}:$LD_LIBRARY_PATH"
''}

# Help Qt find plugins
export QT_PLUGIN_PATH="${pkgs.qt5.qtbase}/${pkgs.qt5.qtbase.qtPluginPrefix}"
Expand Down Expand Up @@ -104,15 +125,22 @@
llvmPackages.openmp
];

# Patch the .pro file to use system libraries and skip udev rules installation
preConfigure = ''
cd Desktop_Interface

# Create a library path for the bundled libdfuprog
mkdir -p $out/lib

# Copy the appropriate libdfuprog for this architecture
cp build_linux/libdfuprog/lib/${qtArch}/libdfuprog-0.9.so $out/lib/
# Copy the appropriate libdfuprog for this platform/architecture
${if isDarwin then ''
if [ -f "${buildDir}/libdfuprog/lib/libdfuprog-0.9.${libExt}" ]; then
cp ${buildDir}/libdfuprog/lib/libdfuprog-0.9.${libExt} $out/lib/
fi
'' else if dfuprogArch != null then ''
if [ -f "${buildDir}/libdfuprog/lib/${dfuprogArch}/libdfuprog-0.9.${libExt}" ]; then
cp ${buildDir}/libdfuprog/lib/${dfuprogArch}/libdfuprog-0.9.${libExt} $out/lib/
fi
'' else ""}
'';

configurePhase = ''
Expand All @@ -130,9 +158,13 @@
installPhase = ''
runHook preInstall

# Install binary
# Install binary (name differs on macOS)
mkdir -p $out/bin
cp labrador $out/bin/
if [ -f labrador ]; then
cp labrador $out/bin/
elif [ -f Labrador ]; then
cp Labrador $out/bin/labrador
fi

# Install firmware
mkdir -p $out/share/EspoTek/Labrador/firmware
Expand All @@ -142,32 +174,41 @@
mkdir -p $out/share/EspoTek/Labrador/waveforms
cp resources/waveforms/* $out/share/EspoTek/Labrador/waveforms/

# Install icons
mkdir -p $out/share/icons/hicolor/48x48/apps
mkdir -p $out/share/icons/hicolor/256x256/apps
cp build_linux/icon48/espotek-labrador.png $out/share/icons/hicolor/48x48/apps/
cp build_linux/icon256/espotek-labrador.png $out/share/icons/hicolor/256x256/apps/
${lib.optionalString isLinux ''
# Install icons (Linux only)
mkdir -p $out/share/icons/hicolor/48x48/apps
mkdir -p $out/share/icons/hicolor/256x256/apps
cp build_linux/icon48/espotek-labrador.png $out/share/icons/hicolor/48x48/apps/
cp build_linux/icon256/espotek-labrador.png $out/share/icons/hicolor/256x256/apps/

# Install desktop file
mkdir -p $out/share/applications
cp build_linux/espotek-labrador.desktop $out/share/applications/
# Install desktop file (Linux only)
mkdir -p $out/share/applications
cp build_linux/espotek-labrador.desktop $out/share/applications/
''}

runHook postInstall
'';

# Wrap the executable to find libdfuprog
preFixup = ''
preFixup = if isDarwin then ''
qtWrapperArgs+=(--prefix DYLD_LIBRARY_PATH : "$out/lib")
'' else ''
qtWrapperArgs+=(--prefix LD_LIBRARY_PATH : "$out/lib")
'';

meta = with pkgs.lib; {
description = "EspoTek Labrador - oscilloscope, signal generator, logic analyzer, and more";
longDescription = ''
The EspoTek Labrador is an open-source board that turns your PC into a
full-featured electronics lab bench, complete with oscilloscope, signal
generator, logic analyzer, and more. This package provides the Qt5
desktop application for interfacing with the Labrador hardware.
'';
homepage = "https://github.com/espotek-org/Labrador";
license = licenses.gpl3;
platforms = platforms.linux;
license = licenses.gpl3Only;
platforms = platforms.linux ++ platforms.darwin;
mainProgram = "labrador";
};
};
});
}

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