aboutsummaryrefslogtreecommitdiff
path: root/flake.nix
blob: 8cb4b66379fb8f514a5369ba1a9f916b3592c077 (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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
{
  description = "A post-modern text editor.";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nci = {
      url = "github:yusdacra/nix-cargo-integration";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.rust-overlay.follows = "rust-overlay";
    };
  };

  outputs = {
    self,
    nixpkgs,
    nci,
    ...
  }: let
    lib = nixpkgs.lib;
    mkRootPath = rel:
      builtins.path {
        path = "${toString ./.}/${rel}";
        name = rel;
      };
    outputs = nci.lib.makeOutputs {
      root = ./.;
      renameOutputs = {"helix-term" = "helix";};
      # Set default app to hx (binary is from helix-term release build)
      # Set default package to helix-term release build
      defaultOutputs = {
        app = "hx";
        package = "helix";
      };
      overrides = {
        cCompiler = common:
          with common.pkgs;
            if stdenv.isLinux
            then gcc
            else clang;
        crateOverrides = common: _: {
          helix-term = prev: {
            src = builtins.path {
              name = "helix-source";
              path = toString ./.;
              # filter out unneeded stuff that cause rebuilds
              filter = path: type:
                lib.all
                (n: builtins.baseNameOf path != n)
                [
                  ".envrc"
                  ".ignore"
                  ".github"
                  "runtime"
                  "screenshot.png"
                  "book"
                  "contrib"
                  "docs"
                  "README.md"
                  "shell.nix"
                  "default.nix"
                  "grammars.nix"
                  "flake.nix"
                  "flake.lock"
                ];
            };

            # disable fetching and building of tree-sitter grammars in the helix-term build.rs
            HELIX_DISABLE_AUTO_GRAMMAR_BUILD = "1";

            buildInputs = (prev.buildInputs or []) ++ [common.cCompiler.cc.lib];

            # link languages and theme toml files since helix-term expects them (for tests)
            preConfigure = ''
              ${prev.preConfigure or ""}
              ${
                lib.concatMapStringsSep
                "\n"
                (path: "ln -sf ${mkRootPath path} ..")
                ["languages.toml" "theme.toml" "base16_theme.toml"]
              }
            '';

            meta.mainProgram = "hx";
          };
        };
        shell = common: prev: {
          packages =
            prev.packages
            ++ (
              with common.pkgs;
                [lld_13 cargo-flamegraph rust-analyzer]
                ++ (lib.optional (stdenv.isx86_64 && stdenv.isLinux) cargo-tarpaulin)
                ++ (lib.optional stdenv.isLinux lldb)
            );
          env =
            prev.env
            ++ [
              {
                name = "HELIX_RUNTIME";
                eval = "$PWD/runtime";
              }
              {
                name = "RUST_BACKTRACE";
                value = "1";
              }
              {
                name = "RUSTFLAGS";
                value =
                  if common.pkgs.stdenv.isLinux
                  then "-C link-arg=-fuse-ld=lld -C target-cpu=native -Clink-arg=-Wl,--no-rosegment"
                  else "";
              }
            ];
        };
      };
    };
    makeOverridableHelix = system: old: config: let
      pkgs = nixpkgs.legacyPackages.${system};
      grammars = pkgs.callPackage ./grammars.nix config;
      runtimeDir = pkgs.runCommand "helix-runtime" {} ''
        mkdir -p $out
        ln -s ${mkRootPath "runtime"}/* $out
        rm -r $out/grammars
        ln -s ${grammars} $out/grammars
      '';
      helix-wrapped =
        pkgs.runCommand "${old.name}-wrapped"
        {
          inherit (old) pname version meta;

          nativeBuildInputs = [pkgs.makeWrapper];
          makeWrapperArgs = config.makeWrapperArgs or [];
        }
        ''
          mkdir -p $out
          cp -r --no-preserve=mode,ownership ${old}/* $out/
          chmod +x $out/bin/*
          wrapProgram "$out/bin/hx" ''${makeWrapperArgs[@]} --set HELIX_RUNTIME "${runtimeDir}"
        '';
    in
      helix-wrapped
      // {override = makeOverridableHelix system old;};
  in
    outputs
    // {
      apps =
        lib.mapAttrs
        (
          system: apps: rec {
            default = hx;
            hx = {
              type = "app";
              program = lib.getExe self.${system}.packages.helix;
            };
          }
        )
        outputs.apps;
      packages =
        lib.mapAttrs
        (
          system: packages: rec {
            default = helix;
            helix = makeOverridableHelix system helix-unwrapped {};
            helix-debug = makeOverridableHelix system helix-unwrapped-debug {};
            helix-unwrapped = packages.helix;
            helix-unwrapped-debug = packages.helix-debug;
          }
        )
        outputs.packages;
    };

  nixConfig = {
    extra-substituters = ["https://helix.cachix.org"];
    extra-trusted-public-keys = ["helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="];
  };
}