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nixos/home-assistant: support platform=... scheme for autoExtraComponents 

See https://home-assistant.io/components/sensor.luftdaten/ for an example component using that scheme.
This commit is contained in:
Robert Schütz 2018-02-04 01:30:47 +01:00
parent 88c16a63c6
commit 59eb19224b
1 changed files with 20 additions and 1 deletions
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21
nixos/modules/services/misc/home-assistant.nix
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@ -9,8 +9,27 @@ let
availableComponents = pkgs.home-assistant.availableComponents;
# Given component "parentConfig.platform", returns whether config.parentConfig
# is a list containing a set with set.platform == "platform".
#
# For example, the component sensor.luftdaten is used as follows:
# config.sensor = [ {
# platform = "luftdaten";
# ...
# } ];
useComponentPlatform = component:
let
path = splitString "." component;
parentConfig = attrByPath (init path) null cfg.config;
platform = last path;
in isList parentConfig && any
(item: item.platform or null == platform)
parentConfig;
# Returns whether component is used in config
useComponent = component: hasAttrByPath (splitString "." component) cfg.config;
useComponent = component:
hasAttrByPath (splitString "." component) cfg.config
|| useComponentPlatform component;
# List of components used in config
extraComponents = filter useComponent availableComponents;