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42 changes: 42 additions & 0 deletions wrapperModules/g/gh/module.nix
Original file line number Diff line number Diff line change
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{
wlib,
lib,
pkgs,
config,
...
}:
let
yamlFormat = pkgs.formats.yaml { };
inherit (lib) mkOption;
in
{
imports = [ wlib.modules.default ];
options = {
settings = mkOption {
inherit (yamlFormat) type;
default = { };
description = ''
Configuration that goes to {file}`config.yml`
'';
};
};
config = {
package = lib.mkDefault pkgs.gh;
env = {
GH_CONFIG_DIR = "${placeholder config.outputName}/gh-config";
};
drv = {
configYml = yamlFormat.generate "config.yml" config.settings;
passAsFile = [
"configYml"
];
buildPhase = ''
runHook preBuild
mkdir -p "${placeholder config.outputName}/gh-config"
cp "$(cat "$configYmlPath")" "${placeholder config.outputName}/gh-config/config.yml"
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@BirdeeHub BirdeeHub Mar 13, 2026

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Since we are already doing some complicated thing here to build the directory, we can make this do placeholders without much extra effort, if you want?

If you set config.drv.nativeBuildInputs = [ pkgs.remarshal_0_17 ];

You can then configContent = builtins.toJSON config.settings;

and json2yaml $configContentPath "${placeholder config.outputName}/gh-config/config.yml" instead of this copy command.

Which is how they do it in nixpkgs

https://github.com/NixOS/nixpkgs/blob/87e875c8ea73c14dd96a883e37c691ab01c9da9e/pkgs/pkgs-lib/formats.nix#L165-L172


Alternatively, if you don't want all that, we should be able to simplify this line to

cp "$configYml" "${placeholder config.outputName}/gh-config/config.yml"

and then remove the passAsFile, which is not necessary in this case. configYml in this case as it is currently written contains a path. A single path is very very unlikely to ever exceed the max length for a variable. So if we are going to continue using .generate, you don't need passAsFile there either.

runHook postBuild
'';
};
meta.maintainers = [ wlib.maintainers.rachitvrma ];
};
}
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