aboutsummaryrefslogtreecommitdiff
path: root/flake.nix
blob: c1561f482d4bf181b65c138c742ae111c687db89 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
{
  description = "Aerogramme";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/master";
    flake-utils.url = "github:numtide/flake-utils";

    # this patched version of cargo2nix makes easier to use clippy for building
    cargo2nix = {
      type = "github";
      owner = "Alexis211";
      repo = "cargo2nix";
      ref = "custom_unstable";
    };

    # use rust project builds 
    fenix.url = "github:nix-community/fenix/monthly";
  };

  outputs = { self, nixpkgs, cargo2nix, flake-utils, fenix }: 
    flake-utils.lib.eachSystem [
      "x86_64-linux"
      "x86_64-unknown-linux-musl"
      "aarch64-unknown-linux-musl"
      "armv6l-unknown-linux-musleabihf"
    ] (targetHost: let
    
    # with fenix, we get builds from the rust project.
    # they are done with an old version of musl (prior to 1.2.x that is used in NixOS),
    # however musl has a breaking change from 1.1.x to 1.2.x on 32 bit systems.
    # so we pin the lib to 1.1.x to avoid recompiling rust ourselves.
    muslOverlay = self: super: {
      musl = super.musl.overrideAttrs(old: if targetHost == "armv6l-unknown-linux-musleabihf" then rec {
        pname = "musl";
        version = "1.1.24";
        src = builtins.fetchurl {
          url    = "https://musl.libc.org/releases/${pname}-${version}.tar.gz";
          sha256 = "sha256:18r2a00k82hz0mqdvgm7crzc7305l36109c0j9yjmkxj2alcjw0k";
        };
      } else {});
    };

    pkgs = import nixpkgs { 
      system = "x86_64-linux"; # hardcoded as we will cross compile
      crossSystem = {
        config = targetHost; # here we cross compile
        isStatic = true;
      };
      overlays = [
        cargo2nix.overlays.default
        muslOverlay
      ];
    };

    pkgVanilla = import nixpkgs { system = "x86_64-linux"; };

    shell = pkgVanilla.mkShell {
      buildInputs = [
        cargo2nix.packages.x86_64-linux.default
        fenix.packages.x86_64-linux.minimal.toolchain
      ];
      shellHook = ''
        echo "AEROGRAME DEVELOPMENT SHELL ${fenix.packages.x86_64-linux.minimal.rustc}"
      '';
    };

    rustTarget = if targetHost == "armv6l-unknown-linux-musleabihf" then "arm-unknown-linux-musleabihf" else targetHost;

    # release builds
    rustRelease = pkgs.rustBuilder.makePackageSet({
      packageFun = import ./Cargo.nix;
      target = rustTarget;
      release = true;
      rustToolchain = with fenix.packages.x86_64-linux; combine [
        minimal.cargo
        minimal.rustc
        targets.${rustTarget}.latest.rust-std
      ];
    });

    # debug builds with clippy as the compiler (hack to speed up compilation)
    debugBuildEnv = (drv:
    ''
        ${drv.setBuildEnv or ""}
        echo
        echo --- BUILDING WITH CLIPPY ---
        echo

        export NIX_RUST_BUILD_FLAGS="''${NIX_RUST_BUILD_FLAGS} --deny warnings"
        export NIX_RUST_LINK_FLAGS="''${NIX_RUST_LINK_FLAGS} --deny warnings"
        export RUSTC="''${CLIPPY_DRIVER}"
    '');

    rustDebug = pkgs.rustBuilder.makePackageSet({
      packageFun = import ./Cargo.nix;
      target = rustTarget;
      release = false;
      rustToolchain = with fenix.packages.x86_64-linux; combine [
        default.cargo
        default.rustc
        default.clippy
        targets.${rustTarget}.latest.rust-std
      ];
      packageOverrides = pkgs: pkgs.rustBuilder.overrides.all ++ [
        (pkgs.rustBuilder.rustLib.makeOverride {
          name = "aerogramme";
          overrideAttrs = drv: {
            setBuildEnv = (debugBuildEnv drv);
          };
        })
        (pkgs.rustBuilder.rustLib.makeOverride {
          name = "smtp-message";
          overrideAttrs = drv: {
            /*setBuildEnv = (traceBuildEnv drv);
            propagatedBuildInputs = drv.propagatedBuildInputs or [ ] ++ [
              traceRust    
            ];*/
          };
        })
      ];
    });

    # binary extract
    bin = pkgs.stdenv.mkDerivation {
      pname = "aerogramme-bin";
      version = "0.1.0";
      dontUnpack = true;
      dontBuild = true;
      installPhase = ''
        cp ${(rustRelease.workspace.aerogramme {}).bin}/bin/aerogramme $out
      '';
    };

    # docker packaging
    archMap = {
      "x86_64-unknown-linux-musl" = {
        GOARCH = "amd64";
      };
      "aarch64-unknown-linux-musl" = {
        GOARCH = "arm64";
      };
      "armv6l-unknown-linux-musleabihf" = {
        GOARCH = "arm";
      };
    };
    container = pkgs.dockerTools.buildImage {
      name = "dxflrs/aerogramme";
      architecture = (builtins.getAttr targetHost archMap).GOARCH;
      config = {
       Cmd = [ "${bin}" "server" ];
      };
    };

    in {
      devShells.default = shell;
      packages.debug = (rustDebug.workspace.aerogramme {}).bin;
      packages.aerogramme = bin;
      packages.container = container;
      packages.default = self.packages.${targetHost}.aerogramme;
    });
}