about summary refs log tree commit diff
path: root/users/Profpatsch/writers/default.nix
blob: 3cb105b5ed1f20d4a33291b2f0268429e97d46d0 (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
{ depot, pkgs, lib, ... }:
let
  bins = depot.nix.getBins pkgs.s6-portable-utils ["s6-mkdir" "s6-cat" "s6-ln" "s6-ls" "s6-touch" ]
      // depot.nix.getBins pkgs.coreutils ["printf" ];

  inherit (depot.nix.yants) defun struct restrict attrs list string drv any;

  inherit (depot.nix) drvSeqL;

  FlakeError =
    restrict
      "flake error"
      (s: lib.any (prefix: (builtins.substring 0 1 s) == prefix)
          [ "E" "W" ])
      string;
  Libraries = defun [ (attrs any) (list drv) ];

  python3 = {
    name,
    libraries ? (_: []),
    flakeIgnore ? []
  }: pkgs.writers.writePython3 name {
    libraries = Libraries libraries pkgs.python3Packages;
    flakeIgnore =
      let ignoreTheseErrors = [
        # whitespace after {
        "E201"
        # whitespace before }
        "E202"
        # fuck 4-space indentation
        "E121" "E111"
        # who cares about blank lines …
        # … at end of files
        "W391"
        # … between functions
        "E302" "E305"
      ];
      in list FlakeError (ignoreTheseErrors ++ flakeIgnore);
  };

  # TODO: add the same flake check as the pyhon3 writer
  python3Lib = { name, libraries ? (_: []) }: moduleString:
    let srcTree = depot.nix.runExecline.local name { stdin = moduleString; } [
      "importas" "out" "out"
      "if" [ bins.s6-mkdir "-p" "\${out}/${name}" ]
      "if" [
        "redirfd" "-w" "1" "\${out}/setup.py"
        bins.printf ''
          from distutils.core import setup

          setup(
            name='%s',
            packages=['%s']
          )
        '' name name
      ]
      "if" [
        # redirect stdin to the init py
        "redirfd" "-w" "1" "\${out}/${name}/__init__.py"
        bins.s6-cat
      ]
    ];
    in pkgs.python3Packages.buildPythonPackage {
      inherit name;
      src = srcTree;
      propagatedBuildInputs = libraries pkgs.python3Packages;
      doCheck = false;
    };

  rustSimple = args@{name, ...}: src:
    linkTo name "${rustSimpleBin args src}/bin/${name}";

  linkTo = name: path: depot.nix.runExecline.local name {} [
    "importas" "out" "out"
    bins.s6-ln "-s" path "$out"
  ];

  rustSimpleBin = {
    name,
    dependencies ? [],
    doCheck ? true,
    ...
  }@args: src:
    (if doCheck then testRustSimple else pkgs.lib.id)
    (pkgs.buildRustCrate ({
      pname = name;
      version = "1.0.0";
      crateName = name;
      crateBin = [ name ];
      dependencies = dependencies;
      src = pkgs.runCommandLocal "write-main.rs" {
        src = src;
        passAsFile = [ "src" ];
      } ''
        mkdir -p $out/src/bin
        cp "$srcPath" $out/src/bin/${name}.rs
        find $out
      '';
    } // args));

  rustSimpleLib = {
    name,
    dependencies ? [],
    doCheck ? true,
    ...
  }@args: src:
    (if doCheck then testRustSimple else pkgs.lib.id)
    (pkgs.buildRustCrate ({
      pname = name;
      version = "1.0.0";
      crateName = name;
      dependencies = dependencies;
      src = pkgs.runCommandLocal "write-lib.rs" {
        src = src;
        passAsFile = [ "src" ];
      } ''
        mkdir -p $out/src
        cp "$srcPath" $out/src/lib.rs
        find $out
      '';
    } // args));

  /* Takes a `buildRustCrate` derivation as an input,
    * builds it with `{ buildTests = true; }` and runs
    * all tests found in its `tests` dir. If they are
    * all successful, `$out` will point to the crate
    * built with `{ buildTests = false; }`, otherwise
    * it will fail to build.
    *
    * See also `nix.drvSeqL` which is used to implement
    * this behavior.
    */
  testRustSimple = rustDrv:
    let
      crate = buildTests: rustDrv.override { inherit buildTests; };
      tests = depot.nix.runExecline.local "${rustDrv.name}-tests-run" {} [
        "importas" "out" "out"
        "if" [
          "pipeline" [ bins.s6-ls "${crate true}/tests" ]
          "forstdin" "-o0" "test"
          "importas" "test" "test"
          "${crate true}/tests/$test"
        ]
        bins.s6-touch "$out"
      ];
    in drvSeqL [ tests ] (crate false);

in {
  inherit
    python3
    python3Lib
    rustSimple
    rustSimpleBin
    rustSimpleLib
    ;
}