mirror of
https://github.com/logos-blockchain/logos-blockchain-module.git
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Add nix based build
This commit is contained in:
Daniel
parent
7937b0aae0
commit
cf836f195b
189
flake.nix
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189
flake.nix
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{
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description = "Logos blockchain module - CMake + Qt6 + Rust (flake)";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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flake-utils.url = "github:numtide/flake-utils";
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};
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outputs = { self, nixpkgs, flake-utils }:
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flake-utils.lib.eachSystem [
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"x86_64-linux"
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"aarch64-linux"
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"x86_64-darwin"
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"aarch64-darwin"
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] (system:
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let
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pkgs = import nixpkgs { inherit system; };
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qt = pkgs.qt6;
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# Pin circuits v0.3.1 assets per platform (add more as needed)
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circuitsInfo =
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if system == "aarch64-darwin" then {
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url = "https://github.com/logos-blockchain/logos-blockchain-circuits/releases/download/v0.3.1/nomos-circuits-v0.3.1-macos-aarch64.tar.gz";
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sha256 = "sha256-UfTK/MJOoUY+dvGdspodhZWfZ5c298K6pwoMaQcboHE=";
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} else if system == "x86_64-linux" then {
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url = "https://github.com/logos-blockchain/logos-blockchain-circuits/releases/download/v0.3.1/nomos-circuits-v0.3.1-linux-x86_64.tar.gz";
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sha256 = "1if58dmly4cvb1lz6dzyg5135vavji91hdayipi6i09w6hdvhyk3";
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} else null;
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circuitsTar = if circuitsInfo != null then pkgs.fetchurl { inherit (circuitsInfo) url sha256; } else null;
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# Helper to build the project with a selected CMAKE_BUILD_TYPE
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buildProject = buildType: pkgs.stdenv.mkDerivation {
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pname = "logos-blockchain-module";
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version = "unstable-${builtins.substring 0 8 self.lastModifiedDate or "dev"}";
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src = ./.;
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# Tools needed at build time
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nativeBuildInputs = [
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pkgs.cmake
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pkgs.ninja
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pkgs.pkg-config
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qt.wrapQtAppsHook
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pkgs.cacert
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pkgs.curl
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pkgs.jq
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pkgs.unzip
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pkgs.gnutar
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];
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# Libraries and toolchains required
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buildInputs = [
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qt.qtbase
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pkgs.rustc
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pkgs.cargo
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pkgs.git
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] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
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pkgs.libiconv
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];
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# Ensure network tools (git/curl in cmake ExternalProject) can validate TLS
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SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
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GIT_SSL_CAINFO = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
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# Ensure CMake can find Qt6 first (inline flags in configurePhase to avoid scope issues)
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# Note: We do not reference a sibling attribute here because mkDerivation attrsets
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# are not recursive; instead, we expand the flags directly below.
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# ExternalProject clones during build; Nix sandboxes usually block network.
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# If you use a sandboxed Nix, either disable sandbox for this build
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# or vendor/pin those deps as flake inputs and patch CMake to use them.
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# The upstream CMakeLists has a post-build step copying the built
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# library back to the source tree, which is read-only in Nix.
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# Remove that step during the build.
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patchPhase = ''
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echo "Patching CMakeLists.txt to disable post-build copy to source tree"
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# Delete the block starting at the add_custom_command(TARGET ... POST_BUILD)
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# and ending before the next blank line or comment trailer
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sed -i.bak \
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-e '/add_custom_command(TARGET[[:space:]]\+blockchainmodulelib[[:space:]]\+POST_BUILD/,/VERBATIM)/d' \
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CMakeLists.txt
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'';
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# Use out-of-source build rooted in $NIX_BUILD_TOP for robustness across phases
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configurePhase = ''
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# Help CMake locate Qt6 provided by Nix
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export CMAKE_PREFIX_PATH='${qt.qtbase}'
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# Ensure cargo can write its cache in a writable location
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export CARGO_HOME="$NIX_BUILD_TOP/cargo-home"
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mkdir -p "$CARGO_HOME"
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mkdir -p "$NIX_BUILD_TOP/build"
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cmake -G Ninja -S . -B "$NIX_BUILD_TOP/build" \
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-DCMAKE_BUILD_TYPE=${buildType} \
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-DUNTITLED_USE_QT=ON
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'';
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buildPhase = ''
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# Keep cargo cache writable for ExternalProject-driven cargo builds
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export CARGO_HOME="$NIX_BUILD_TOP/cargo-home"
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mkdir -p "$CARGO_HOME"
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# Provide NOMOS_CIRCUITS from pinned artifact if not set by caller
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if [ -z "$NOMOS_CIRCUITS" ]; then
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if [ -n "${circuitsTar}" ]; then
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echo "Using pinned circuits archive for system ${system}"
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unpackDir="$NIX_BUILD_TOP/circuits-unpack"
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mkdir -p "$unpackDir"
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# circuitsTar is a fixed-output path in the Nix store; just unpack
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tar -xzf "${circuitsTar}" -C "$unpackDir"
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circuit_root=$(find "$unpackDir" -mindepth 1 -maxdepth 1 -type d | head -n1)
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if [ -z "$circuit_root" ]; then
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echo "Could not determine circuits directory inside pinned archive" >&2
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exit 1
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fi
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export NOMOS_CIRCUITS="$circuit_root"
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echo "NOMOS_CIRCUITS=$NOMOS_CIRCUITS"
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else
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echo "No pinned circuits for system ${system}. Set NOMOS_CIRCUITS to a local path and rebuild with --impure." >&2
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exit 1
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fi
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fi
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ninja -C "$NIX_BUILD_TOP/build" blockchainmodulelib
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'';
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installPhase = ''
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mkdir -p $out/lib $out/include
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# Install the produced shared library
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set -e
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if ls "$NIX_BUILD_TOP/build"/libblockchainmodulelib.* >/dev/null 2>&1; then
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install -m755 "$NIX_BUILD_TOP/build"/libblockchainmodulelib.* $out/lib/
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elif ls "$sourceRoot"/libblockchainmodulelib.* >/dev/null 2>&1; then
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install -m755 "$sourceRoot"/libblockchainmodulelib.* $out/lib/
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else
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# Fallback: search within source root
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found=$(find "$NIX_BUILD_TOP" -maxdepth 3 -name 'libblockchainmodulelib.*' | head -n1)
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if [ -n "$found" ]; then
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install -m755 "$found" $out/lib/
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else
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echo "Error: built library not found" >&2
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exit 1
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fi
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fi
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# Optionally expose the module's public header
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install -m644 ${./library.h} $out/include/library.h
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'';
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meta = with pkgs.lib; {
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description = "Logos blockchain module (Qt6 + Rust)";
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homepage = "https://github.com/logos-co";
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platforms = platforms.all;
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# Use a permissive placeholder to avoid unfree gating during builds.
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# Adjust to the correct license once finalized.
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license = licenses.mit;
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maintainers = [];
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};
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};
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in
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{
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packages = rec {
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debug = buildProject "Debug";
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release = buildProject "Release";
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default = release;
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};
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# Developer shells with all tools available
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devShells.default = pkgs.mkShell {
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packages = [
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pkgs.cmake
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pkgs.ninja
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pkgs.pkg-config
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pkgs.rustc
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pkgs.cargo
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pkgs.git
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qt.qtbase
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];
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# Help CMake find Qt6 in ad-hoc builds/CLion
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CMAKE_PREFIX_PATH = qt.qtbase;
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# Expose both Debug and Release convenience commands
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shellHook = ''
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echo "Dev shell for logos-blockchain-module"
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echo "Build (Debug): cmake -B cmake-build-debug -G Ninja -DCMAKE_BUILD_TYPE=Debug -DUNTITLED_USE_QT=ON -DCMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH . && cmake --build cmake-build-debug --target blockchainmodulelib"
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echo "Build (Release): cmake -B cmake-build-release -G Ninja -DCMAKE_BUILD_TYPE=Release -DUNTITLED_USE_QT=ON -DCMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH . && cmake --build cmake-build-release --target blockchainmodulelib"
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'';
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};
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}
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);
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}
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