blob: bfb8e3a4d5cb4afebce27605336bb6bf7c46ce36 (
plain)
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
|
# dub2nix
CLI tool to create Nix expressions for D-lang Dub projects.
## Installation
Install with `nix-env`:
```sh
nix-env -if https://github.com/lionello/dub2nix/archive/master.tar.gz
```
or add to your `shell.nix` and run `nix-shell`:
```nix
with import <nixpkgs> {};
let
dub2nix-src = fetchTarball {
url = "https://github.com/lionello/dub2nix/archive/master.tar.gz";
};
dub2nix = (import dub2nix-src) { inherit pkgs; };
in mkShell {
buildInputs = [
dub2nix # dub dmd rdmd ldc etc..
];
}
```
## Development
Do `git clone` and `nix-shell` to build with `dub`:
```sh
nix-shell
dub
```
Alternatively, use `direnv`:
```sh
echo use nix >> .envrc
direnv allow
dub
```
## Usage
```
Usage: dub2nix [OPTIONS] COMMAND
Create Nix derivations for Dub package dependencies.
Commands:
save Write Nix files for Dub project
Options:
-i --input Path of selections JSON; defaults to ./dub.selections.json
-o --output Output Nix file for Dub project
-r --registry URL to Dub package registry; default http://code.dlang.org/packages/
-d --deps-file Output Nix file with dependencies; defaults to ./dub.selections.nix
-h --help This help information.
```
First, use `dub build` to generate the `dub.selections.json` for your Dub project.
Then, run `dub2nix save` to read the `dub.selections.json` in the current folder and write a new file `dub.selections.nix`.
This `dub.selections.nix` is used in `mkDubDerivation` (from `mkDub.nix`) to create a new derivation for your Dub project:
```nix
{pkgs}:
with (import ./mkDub.nix {
inherit pkgs;
});
mkDubDerivation {
version = "0.1.0"; # optional
src = ./.;
}
```
When your project has no dependencies at all, this will fail because `dub.selections.nix` is missing. Set `deps` to override the dependencies:
```nix
{pkgs}:
with (import ./mkDub.nix {
inherit pkgs;
});
mkDubDerivation {
src = ./.;
deps = [];
}
```
Use the `--output` option to write a `.nix` file with a skeleton derivation for your dub project. This will also create the `mkDub.nix` file for importing into the derivation.
|
