26 lines
848 B
Nix
26 lines
848 B
Nix
{ versionsPath }:
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let
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channelVersions = (import versionsPath);
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mkChannelSource = name:
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let channelVersion = builtins.getAttr name channelVersions;
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in builtins.fetchGit {
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# Descriptive name to make the store path easier to identify
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inherit name;
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inherit (channelVersion) url ref rev;
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};
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nixPath = builtins.concatStringsSep ":" (builtins.map (elemName:
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let
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elem = builtins.getAttr elemName channelVersions;
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elemPath = (mkChannelSource elemName);
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suffix = if builtins.hasAttr "suffix" elem then elem.suffix else "";
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in builtins.concatStringsSep "=" [ elemName elemPath ] + suffix)
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(builtins.attrNames channelVersions));
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pkgs = import (mkChannelSource "nixpkgs") { };
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in {
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inherit nixPath;
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channelSources = pkgs.writeText "channels.rc" ''
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export NIX_PATH=${nixPath}
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'';
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}
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