flake-parts: set up basic boilerplate

- add a modified bitcoin-core flake (from willcl-ark nix-dev-server)
- compose this with a rust-bitcoinkernel flake
- setup for macos/linux

Author: josibake

flake.lock

@@ -0,0 +1,16 @@
+{
+  description = "devazoa - a collection of bitcoin development environments";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/24.11";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+  };
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        ./modules/devshells.nix
+        ./modules/formatter.nix
+      ];
+    };
+}

flake.nix

@@ -0,0 +1,19 @@
+{ lib, ... }:
+
+{
+  systems = [
+    "x86_64-linux"
+    "aarch64-darwin"
+  ];
+
+  perSystem = { system, pkgs, ... }: {
+    devShells = {
+      default = pkgs.mkShell {
+        packages = with pkgs; [ nix git ];
+      };
+
+      bitcoin-core = import ../shells/bitcoin-core.nix { inherit pkgs system; };
+      rust-bitcoinkernel = import ../shells/rust-bitcoinkernel.nix { inherit pkgs system; };
+    };
+  };
+}

modules/devshells.nix

@@ -0,0 +1,7 @@
+{ lib, ... }:
+
+{
+  perSystem = { pkgs, ... }: {
+    formatter = pkgs.nixpkgs-fmt;
+  };
+}

modules/formatter.nix

@@ -0,0 +1,70 @@
+{ pkgs, system }:
+
+let
+  isLinux = pkgs.stdenv.isLinux;
+  lib = pkgs.lib;
+
+  commonNativeBuildInputs = with pkgs; [
+    byacc
+    ccache
+    clang-tools_19
+    clang_19
+    cmake
+    gcc14
+    gnum4
+    gnumake
+    ninja
+    pkg-config
+    qt6.wrapQtAppsHook
+  ];
+
+  linuxNativeBuildInputs = with pkgs; [
+    libsystemtap
+    linuxPackages.bcc
+    linuxPackages.bpftrace
+    python312Packages.bcc
+  ];
+
+  nativeBuildInputs = commonNativeBuildInputs ++ (if isLinux then linuxNativeBuildInputs else [ ]);
+
+  pythonEnv = pkgs.python312.withPackages (ps: with ps; [
+    flake8
+    lief
+    mypy
+    pyzmq
+    vulture
+  ]);
+
+  commonBuildInputs = with pkgs; [
+    boost
+    capnproto
+    codespell
+    db4
+    hexdump
+    libevent
+    qrencode
+    qt6.qtbase
+    qt6.qttools
+    sqlite
+    uv
+    zeromq
+    pythonEnv
+  ];
+
+  linuxBuildInputs = with pkgs; [ python312Packages.bcc ];
+
+  buildInputs = commonBuildInputs ++ (if isLinux then linuxBuildInputs else [ ]);
+
+  shellHook = ''
+    export CC=clang
+    export CXX=clang++
+    export CMAKE_GENERATOR=Ninja
+  '';
+in
+
+pkgs.mkShell {
+  LD_LIBRARY_PATH = lib.makeLibraryPath [ pkgs.gcc14.cc pkgs.capnproto ];
+  LOCALE_ARCHIVE = "${pkgs.glibcLocales}/lib/locale/locale-archive";
+  QT_PLUGIN_PATH = "${pkgs.qt6.qtbase}/${pkgs.qt6.qtbase.qtPluginPrefix}";
+  inherit nativeBuildInputs buildInputs shellHook;
+}

shells/bitcoin-core.nix

@@ -0,0 +1,23 @@
+{ pkgs, system }:
+
+let
+  bitcoinCoreShell = import ./bitcoin-core.nix { inherit pkgs system; };
+in
+
+pkgs.mkShell {
+  nativeBuildInputs = bitcoinCoreShell.nativeBuildInputs ++ (with pkgs; [
+    rustc
+    cargo
+    clippy
+    rustfmt
+    llvmPackages_19.libclang
+  ]);
+
+  buildInputs = bitcoinCoreShell.buildInputs;
+
+  shellHook = ''
+    ${bitcoinCoreShell.shellHook}
+
+    export LIBCLANG_PATH="${pkgs.llvmPackages_19.libclang.lib}/lib"
+  '';
+}