retsyn 0.1.4

A full text search program. Can be used via CLI or as a library.
Documentation 
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# from: https://nixos.wiki/wiki/Rust#Installation_via_rustup
{ pkgs ? import <nixpkgs> { } }:
let
  overrides = (builtins.fromTOML (builtins.readFile ./rust-toolchain.toml));
  libPath = with pkgs;
    lib.makeLibraryPath [
      # GUI libraries for eframe/egui
      libglvnd
      libxkbcommon
      wayland
      vulkan-loader
      xorg.libX11
      xorg.libXcursor
      xorg.libXi
      xorg.libXrandr
    ];
in pkgs.mkShell rec {
  buildInputs = with pkgs; [
    clang
    # Replace llvmPackages with llvmPackages_X, where X is the latest LLVM version (at the time of writing, 16)
    llvmPackages.bintools
    rustup
    # GUI development dependencies
    pkg-config
    fontconfig
    freetype
  ];
  nativeBuildInputs = with pkgs; [ mold ];
  RUSTC_VERSION = overrides.toolchain.channel;
  # https://github.com/rust-lang/rust-bindgen#environment-variables
  LIBCLANG_PATH =
    pkgs.lib.makeLibraryPath [ pkgs.llvmPackages_latest.libclang.lib ];
  shellHook = ''
    export PATH=$PATH:''${CARGO_HOME:-~/.cargo}/bin
    export PATH=$PATH:''${RUSTUP_HOME:-~/.rustup}/toolchains/$RUSTC_VERSION-x86_64-unknown-linux-gnu/bin/
  '';
  # Add precompiled library to rustc search path
  RUSTFLAGS = (builtins.map (a: "-L ${a}/lib") [
    # GUI libraries for linking
    pkgs.libglvnd
    pkgs.libxkbcommon
    pkgs.wayland
    pkgs.vulkan-loader
    pkgs.xorg.libX11
    pkgs.xorg.libXcursor
    pkgs.xorg.libXi
    pkgs.xorg.libXrandr
  ]) ++ [
    # Add rpath for runtime library loading
    "-C"
    "link-arg=-Wl,-rpath,${libPath}"
  ];
  LD_LIBRARY_PATH = libPath;
  # Add glibc, clang, glib, and other headers to bindgen search path
  BINDGEN_EXTRA_CLANG_ARGS =
    # Includes normal include path
    (builtins.map (a: ''-I"${a}/include"'') [
      # add dev libraries here (e.g. pkgs.libvmi.dev)
      pkgs.glibc.dev
    ])
    # Includes with special directory paths
    ++ [
      ''
        -I"${pkgs.llvmPackages_latest.libclang.lib}/lib/clang/${pkgs.llvmPackages_latest.libclang.version}/include"''
      ''-I"${pkgs.glib.dev}/include/glib-2.0"''
      "-I${pkgs.glib.out}/lib/glib-2.0/include/"
    ];
}