| Build the client with Nix, not just a shell for it ca3afbe nandi 19d ago | 1 | { |
| 2 | # frq is Jolt source, so "building" it is three things, not one: |
| 3 | # |
| 4 | # jolt the runtime that reads it (github:jolt-lang/jolt) |
| 5 | # jolt-native libvidya and libjoltmoq, in Rust (gitlab:nandithebull/jolt-native) |
| 6 | # frq this tree, with its deps resolved to store paths |
| 7 | # |
| 8 | # Jolt resolves deps.edn by running git at startup, which a build sandbox has |
| 9 | # no network for — so every dep is fetched by Nix instead and handed back as |
| 10 | # a :local/root through -Sdeps. |
| 11 | # |
| 12 | # nix build .#frq && ./result/bin/frq |
| 13 | # |
| 14 | # On a machine that is not NixOS the GL driver is the host's and the loader |
| 15 | # will not find it, so the window never opens ("GL display: argument does not |
| 16 | # name a valid config"). Launch through nixGL there: |
| 17 | # |
| 18 | # nix run --impure "git+https://github.com/nix-community/nixGL#nixGLIntel" -- ./result/bin/frq |
| 19 | description = "frq — a freeq client in jolt"; |
| 20 | |
| 21 | inputs = { |
| 22 | nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; |
| 23 | # Jolt's own flake declares `self.submodules`, which this Nix rejects when |
| 24 | # the flake is fetched through the github scheme — so take the source and |
| 25 | # build it here. `vendor/` is a submodule and the build needs it. |
| 26 | jolt-src = { |
| 27 | url = "git+https://github.com/jolt-lang/jolt?submodules=1"; |
| 28 | flake = false; |
| 29 | }; |
| 30 | |
| 31 | jolt-native = { |
| 32 | url = "git+https://gitlab.com/nandithebull/jolt-native"; |
| 33 | flake = false; |
| 34 | }; |
| 35 | |
| 36 | # The sha deps.edn pins, on the fork with the reconciler fixes. |
| 37 | glimmer = { |
| 38 | url = "git+https://gitlab.com/nandithebull/glimmer?rev=399df371c790d690fb6e4560c3d4d7f838502857"; |
| 39 | flake = false; |
| 40 | }; |
| 41 | }; |
| 42 | |
| 43 | outputs = { self, nixpkgs, jolt-src, jolt-native, glimmer }: |
| 44 | let |
| 45 | systems = [ "x86_64-linux" "aarch64-linux" ]; |
| 46 | forEachSystem = f: |
| 47 | nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system}); |
| 48 | in |
| 49 | { |
| 50 | packages = forEachSystem (pkgs: |
| 51 | let |
| 52 | inherit (pkgs) lib; |
| 53 | |
| 54 | # libvidya (the retained-tree ABI glimmer-vidya binds, on egui) and |
| 55 | # libjoltmoq (the AV media plane). One workspace, two cdylibs. |
| 56 | native = pkgs.rustPlatform.buildRustPackage { |
| 57 | pname = "jolt-native"; |
| 58 | version = "0.1.0"; |
| 59 | src = jolt-native; |
| 60 | |
| 61 | cargoLock = { |
| 62 | lockFile = "${jolt-native}/Cargo.lock"; |
| 63 | allowBuiltinFetchGit = true; |
| 64 | }; |
| 65 | |
| 66 | nativeBuildInputs = with pkgs; [ |
| 67 | pkg-config |
| 68 | cmake |
| 69 | rustPlatform.bindgenHook |
| 70 | ]; |
| 71 | |
| 72 | buildInputs = with pkgs; [ |
| 73 | alsa-lib |
| 74 | pipewire |
| 75 | openssl |
| 76 | libxkbcommon |
| 77 | wayland |
| 78 | libGL |
| 79 | ]; |
| 80 | |
| 81 | # Upstream's .cargo/config.toml drives the whole build through |
| 82 | # DotSlash: a pinned rustc, sccache, and zig as the C/C++ compiler |
| 83 | # and linker, each fetched from the network on first use. None of |
| 84 | # that survives a build sandbox, and none of it is needed when the |
| 85 | # toolchain comes from the store — so drop it and let stdenv's cc |
| 86 | # link (openh264 is C++, which stdenv covers too). |
| 87 | postPatch = '' |
| 88 | rm -f .cargo/config.toml |
| 89 | ''; |
| 90 | |
| 91 | # bindgen reads linux/videodev2.h directly; upstream points it at |
| 92 | # zig's bundled headers, which under Nix is just the kernel headers. |
| 93 | V4L2R_VIDEODEV2_H_PATH = "${pkgs.linuxHeaders}/include"; |
| 94 | |
| 95 | doCheck = false; |
| 96 | |
| 97 | installPhase = '' |
| 98 | runHook preInstall |
| 99 | mkdir -p "$out/lib" |
| 100 | install -m644 target/*/release/*.so "$out/lib/" |
| 101 | runHook postInstall |
| 102 | ''; |
| 103 | }; |
| 104 | |
| 105 | # Jolt itself: Clojure on Chez, built the way its own flake builds it. |
| 106 | joltRuntime = pkgs.stdenv.mkDerivation { |
| 107 | pname = "jolt"; |
| 108 | version = "dev"; |
| 109 | src = jolt-src; |
| 110 | |
| 111 | strictDeps = true; |
| 112 | nativeBuildInputs = with pkgs; [ chez makeWrapper pkg-config xxd ]; |
| 113 | buildInputs = with pkgs; [ lz4 zlib ncurses openssl libuuid ]; |
| 114 | |
| 115 | JOLT_VERSION = "dev"; |
| 116 | dontConfigure = true; |
| 117 | |
| 118 | buildPhase = '' |
| 119 | runHook preBuild |
| 120 | scheme --script host/chez/build-jolt.ss release target/release/jolt |
| 121 | runHook postBuild |
| 122 | ''; |
| 123 | |
| 124 | installPhase = '' |
| 125 | runHook preInstall |
| 126 | mkdir -p "$out/bin" |
| 127 | install -m755 target/release/jolt "$out/bin/jolt" |
| 128 | runHook postInstall |
| 129 | ''; |
| 130 | |
| 131 | # jolt.deps shells out to git and unzip, and jolt.mvn-http dlopens |
| 132 | # OpenSSL through the JOLT_OPENSSL_LIBDIR seam. |
| 133 | postFixup = '' |
| 134 | wrapProgram "$out/bin/jolt" \ |
| 135 | --prefix PATH : "${pkgs.lib.makeBinPath [ pkgs.git pkgs.unzip ]}" \ |
| 136 | --set-default JOLT_OPENSSL_LIBDIR "${pkgs.lib.makeLibraryPath [ pkgs.openssl ]}" \ |
| 137 | --set-default SSL_CERT_FILE "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt" |
| 138 | ''; |
| 139 | }; |
| 140 | |
| 141 | # glimmer-vidya lives inside the jolt-native checkout, and its own |
| 142 | # deps.edn asks for glimmer by git — the top-level override below |
| 143 | # answers for both. |
| 144 | glimmerVidya = "${jolt-native}/jolt/glimmer-vidya"; |
| 145 | |
| 146 | # egui reaches for these with dlopen rather than linking them, so |
| 147 | # being in the cdylib's buildInputs is not enough — the launcher has |
| 148 | # to put them on the loader path itself. Without libX11 here, vidya |
| 149 | # reports "X11 unavailable", falls back to Wayland, and winit refuses |
| 150 | # to build a second event loop after the failed first one. |
| 151 | runtimeLibs = with pkgs; [ |
| 152 | libGL |
| 153 | libxkbcommon |
| 154 | wayland |
| 155 | xorg.libX11 |
| 156 | xorg.libXcursor |
| 157 | xorg.libXi |
| 158 | xorg.libXrandr |
| 159 | vulkan-loader |
| 160 | ]; |
| 161 | |
| 162 | # The project as jolt sees it: source, deps.edn, nothing else. |
| 163 | frqSource = pkgs.runCommand "frq-source" { } '' |
| 164 | mkdir -p "$out" |
| 165 | cp -r ${self}/src ${self}/deps.edn "$out/" |
| 166 | ''; |
| 167 | |
| 168 | # Jolt resolves deps.edn from the working directory, so the launcher |
| 169 | # runs from the store copy. Its .jolt/cpcache write lands on a |
| 170 | # read-only directory and jolt treats that as a quiet cache miss, so |
| 171 | # the only cost is re-resolving the (already local) graph per start. |
| 172 | frqScript = pkgs.writeShellScript "frq" '' |
| 173 | export LD_LIBRARY_PATH="${native}/lib:${lib.makeLibraryPath runtimeLibs}''${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}" |
| 174 | cd ${frqSource} |
| 175 | exec ${joltRuntime}/bin/jolt \ |
| 176 | -Sdeps '{:deps {jolt-lang/glimmer {:local/root "${glimmer}"} nandi/glimmer-vidya {:local/root "${glimmerVidya}"}}}' \ |
| 177 | -M:frq "$@" |
| 178 | ''; |
| 179 | |
| 180 | frq = pkgs.runCommand "frq-0.1.0" |
| 181 | { |
| 182 | meta = { |
| 183 | description = "A freeq client in jolt"; |
| 184 | mainProgram = "frq"; |
| 185 | platforms = systems; |
| 186 | }; |
| 187 | } |
| 188 | '' |
| 189 | mkdir -p "$out/bin" |
| 190 | ln -s ${frqScript} "$out/bin/frq" |
| 191 | ''; |
| 192 | in |
| 193 | { |
| 194 | inherit native frq; |
| 195 | jolt = joltRuntime; |
| 196 | default = frq; |
| 197 | }); |
| 198 | |
| 199 | apps = forEachSystem (pkgs: { |
| 200 | default = { |
| 201 | type = "app"; |
| 202 | program = "${self.packages.${pkgs.stdenv.hostPlatform.system}.frq}/bin/frq"; |
| 203 | }; |
| 204 | }); |
| 205 | }; |
| 206 | } |