zon2nix's Introduction

zon2nix

Convert the dependencies in build.zig.zon to a Nix expression

Usage

zon2nix > deps.nix
zon2nix zls > deps.nix
zon2nix zls/build.zig.zon > deps.nix

To use the generated file, add this to your Nix expression:

postPatch = ''
  ln -s ${callPackage ./deps.nix { }} $ZIG_GLOBAL_CACHE_DIR/p
'';

Example

This build.zig.zon from zls

.{
    .name = "zls",
    .version = "0.11.0",

    .dependencies = .{
        .known_folders = .{
            .url = "https://github.com/ziglibs/known-folders/archive/fa75e1bc672952efa0cf06160bbd942b47f6d59b.tar.gz",
            .hash = "122048992ca58a78318b6eba4f65c692564be5af3b30fbef50cd4abeda981b2e7fa5",
        },
        .diffz = .{
            .url = "https://github.com/ziglibs/diffz/archive/90353d401c59e2ca5ed0abe5444c29ad3d7489aa.tar.gz",
            .hash = "122089a8247a693cad53beb161bde6c30f71376cd4298798d45b32740c3581405864",
        },
        .binned_allocator = .{
            .url = "https://gist.github.com/antlilja/8372900fcc09e38d7b0b6bbaddad3904/archive/6c3321e0969ff2463f8335da5601986cf2108690.tar.gz",
            .hash = "1220363c7e27b2d3f39de6ff6e90f9537a0634199860fea237a55ddb1e1717f5d6a5",
        },
    },
}

produces the following nix expression

# generated by zon2nix (https://github.com/nix-community/zon2nix)

{ linkFarm, fetchzip }:

linkFarm "zig-packages" [
  {
    name = "1220363c7e27b2d3f39de6ff6e90f9537a0634199860fea237a55ddb1e1717f5d6a5";
    path = fetchzip {
      url = "https://gist.github.com/antlilja/8372900fcc09e38d7b0b6bbaddad3904/archive/6c3321e0969ff2463f8335da5601986cf2108690.tar.gz";
      hash = "sha256-m/kr4kmkG2rLkAj5YwvM0HmXTd+chAiQHzYK6ozpWlw=";
    };
  }
  {
    name = "122048992ca58a78318b6eba4f65c692564be5af3b30fbef50cd4abeda981b2e7fa5";
    path = fetchzip {
      url = "https://github.com/ziglibs/known-folders/archive/fa75e1bc672952efa0cf06160bbd942b47f6d59b.tar.gz";
      hash = "sha256-U/h4bVarq8CFKbFyNXKl3vBRPubYooLxA1xUz3qMGPE=";
    };
  }
  {
    name = "122089a8247a693cad53beb161bde6c30f71376cd4298798d45b32740c3581405864";
    path = fetchzip {
      url = "https://github.com/ziglibs/diffz/archive/90353d401c59e2ca5ed0abe5444c29ad3d7489aa.tar.gz";
      hash = "sha256-3CdYo6WevT0alRwKmbABahjhFKz7V9rdkDUZ43VtDeU=";
    };
  }
]

zon2nix's People

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zon2nix's Issues

Support `git+` dependencies.

Zig supports pulling packages from git with this syntax in a dependencies' .url field: git+https://git.mzte.de/mirrors/zig-args.git#89f18a104d9c13763b90e97d6b4ce133da8a3e2b.

zon2nix will naively prepend tarball+ here, resulting in a completely invalid URL for nix flake prefetch. We can fix this by detecting the git+ prefix and converting this to a valid URL for nix, which in my example would be: git+https://git.mzte.de/mirrors/zig-args.git?rev=89f18a104d9c13763b90e97d6b4ce133da8a3e2b.

In the generated deps.nix, we'd then also have to use fetchgit instead of fetchzip. The generated code would look like this in my example:

{
  name = "12203ded54c85878eea7f12744066dcb4397177395ac49a7b2aa365bf6047b623829";
  path = fetchgit {
    url = "https://git.mzte.de/mirrors/zig-args.git";
    rev = "89f18a104d9c13763b90e97d6b4ce133da8a3e2b";
    hash = "sha256-JY0UDJSKOh1Cg46/GnhVTNmgr6TJKoHXgt8FponPCPM=";
  };
}

Runtime error

Hi.

When running nix run github:nix-community/zon2nix I get the following error:

error: parseError
???:?:?: 0x218eb0 in ??? ()
???:?:?: 0x21ec7a in ??? ()

I'm running it in the ZLS's master branch on NixOS unstable.

nix-community / zon2nix Goto Github PK

zon2nix's Introduction

zon2nix

Usage

Example

zon2nix's People

Contributors

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zon2nix's Issues

Support `git+` dependencies.

Runtime error

Support path dependencies

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