forked from mirrors/nixpkgs
5c0c8a4017
options. Add the "deprecated" status which breaks until options are manually renamed. svn path=/nixos/trunk/; revision=17508
76 lines
2.4 KiB
Nix
76 lines
2.4 KiB
Nix
{pkgs, options, config, ...}:
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let
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to = throw "This is just a dummy keyword";
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alias = from: to: {
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name = "Alias";
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msg.use = x: x;
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msg.define = x: x;
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};
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obsolete = from: to: {
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name = "Obsolete name";
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msg.use = x:
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builtins.trace "Option '${from}' is used instead of '${to}'." x;
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msg.define = x:
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builtins.trace "Option '${from}' is defined instead of '${to}'." x;
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};
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deprecated = from: to: {
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name = "Deprecated name";
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msg.use = x:
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abort "Option '${from}' is used instead of '${to}'.";
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msg.define = x:
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abort "Option '${from}' is defined instead of '${to}'.";
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};
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zipModules = list: with pkgs.lib;
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zip (n: v:
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if tail v != [] then zipModules v else head v
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) list;
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rename = statusTemplate: from: keyword: to: with pkgs.lib;
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let
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status = statusTemplate from to;
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setTo = setAttrByPath (splitString "." to);
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setFrom = setAttrByPath (splitString "." from);
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toOf = attrByPath (splitString "." to)
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(abort "Renaming Error: option '${to}' does not exists.");
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fromOf = attrByPath (splitString "." from)
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(abort "Internal Error: option '${from}' should be declared.");
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in
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[{
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options = setFrom (mkOption {
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description = "${status.name} of <option>${to}</option>.";
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apply = x: status.msg.use (toOf config);
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});
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}] ++
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[{
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options = setTo (mkOption {
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extraConfigs =
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let externalDefs = (fromOf options).definitions; in
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if externalDefs == [] then []
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else map (def: def.value) (status.msg.define externalDefs);
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});
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}];
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in zipModules ([]
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# usage example:
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# ++ rename alias "services.xserver.slim.theme" to "services.xserver.displayManager.slim.theme"
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++ rename obsolete "environment.extraPackages" to "environment.systemPackages"
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# Old Grub-related options.
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++ rename obsolete "boot.copyKernels" to "boot.loader.grub.copyKernels"
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++ rename obsolete "boot.extraGrubEntries" to "boot.loader.grub.extraEntries"
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++ rename obsolete "boot.extraGrubEntriesBeforeNixos" to "boot.loader.grub.extraEntriesBeforeNixOS"
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++ rename obsolete "boot.grubDevice" to "boot.loader.grub.device"
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++ rename obsolete "boot.bootMount" to "boot.loader.grub.bootDevice"
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++ rename obsolete "boot.grubSplashImage" to "boot.loader.grub.splashImage"
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) # do not add renaming after this.
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