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author | Jan Malakhovski <oxij@oxij.org> | 2017-04-01 00:00:00 +0000 |
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committer | Jan Malakhovski <oxij@oxij.org> | 2018-02-18 12:56:31 +0000 |
commit | 0fd8ce96ac7c708919da422d032dbf0f23c8c03a (patch) | |
tree | d178e7c72a8b515384d2b5008a20c3fb075900d3 | |
parent | 2e6b796761672e0e3ed685487007bb0d99126d91 (diff) | |
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nixos: introduce system.nixos.tags
-rw-r--r-- | nixos/modules/misc/label.nix | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/nixos/modules/misc/label.nix b/nixos/modules/misc/label.nix index 5faac8936f8f..b4e88915d829 100644 --- a/nixos/modules/misc/label.nix +++ b/nixos/modules/misc/label.nix @@ -21,12 +21,32 @@ in ''; }; + nixos.tags = mkOption { + type = types.listOf types.str; + default = []; + example = [ "with-xen" ]; + description = '' + Strings to prefix to the default + <option>system.nixos.label</option>. + + Useful for not loosing track of configurations built with + different options, e.g.: + + <screen> + { + system.nixos.tags = [ "with-xen" ]; + virtualisation.xen.enable = true; + } + </screen> + ''; + }; + }; config = { # This is set here rather than up there so that changing it would # not rebuild the manual - system.nixos.label = mkDefault cfg.version; + system.nixos.label = mkDefault (concatStringsSep "-" (sort (x: y: x < y) cfg.tags) + "-" + cfg.version); }; } |