45 lines
1.1 KiB
Nix
45 lines
1.1 KiB
Nix
{ nixpkgsPath ? <nixpkgs> }:
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let
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defaultNixpkgsPath = nixpkgsPath;
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in
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self: super: {
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selfExpr = let
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config = builtins.removeAttrs self.config [ "_undeclared" ];
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configJson = builtins.toJSON config;
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getSelfExpr = {
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useConfig ? true,
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nixpkgsPath ? defaultNixpkgsPath,
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...
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}: let
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configText = ''
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config = (builtins.fromJSON '''
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${configJson}
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''') // args.config or {};
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'';
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removedAttrNames = self.lib.optional useConfig "config";
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removedAttrNamesText = builtins.toJSON removedAttrNames;
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in ''
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{ ... } @ args:
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import ${nixpkgsPath} (
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{
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${self.lib.optionalString useConfig configText}
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} // builtins.removeAttrs args (builtins.fromJSON '''
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${removedAttrNamesText}
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''')
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)
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'';
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mkNixpkgsChannel = args: self.writeTextFile {
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name = args.name or "nixpkgs-self";
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destination = "/default.nix";
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text = getSelfExpr args;
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} // {
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__functor = _: args: mkNixpkgsChannel args;
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};
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in mkNixpkgsChannel {};
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}
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