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nixos/home-assistant: account for introduction of manifest.json

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The `availableComponents` now only contain a single attribute for
every integration.
This commit is contained in:
Robert Schütz 2019-04-25 15:54:24 +02:00
parent 4d607a5ac9
commit d280603bd1
1 changed files with 13 additions and 22 deletions
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35
nixos/modules/services/misc/home-assistant.nix
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@ -21,32 +21,23 @@ let
availableComponents = cfg.package.availableComponents;
# Given component "parentConfig.platform", returns whether config.parentConfig
# is a list containing a set with set.platform == "platform".
usedPlatforms = config:
if isAttrs config then
optional (config ? platform) config.platform
++ concatMap usedPlatforms (attrValues config)
else if isList config then
concatMap usedPlatforms config
else [ ];
# Given a component "platform", looks up whether it is used in the config
# as `platform = "platform";`.
#
# For example, the component sensor.luftdaten is used as follows:
# For example, the component mqtt.sensor is used as follows:
# config.sensor = [ {
# platform = "luftdaten";
# platform = "mqtt";
# ...
# } ];
#
# Beginning with 0.87 Home Assistant is migrating their components to the
# scheme "platform.subComponent", e.g. "hue.light" instead of "light.hue".
# See https://developers.home-assistant.io/blog/2019/02/19/the-great-migration.html.
# Hence, we also check whether we find an entry in the config when interpreting
# the first part of the path as the component.
useComponentPlatform = component:
let
path = splitString "." component;
# old: platform is the last part of path
parentConfig = attrByPath (init path) null cfg.config;
platform = last path;
# new: platform is the first part of the path
parentConfig' = attrByPath (tail path) null cfg.config;
platform' = head path;
in
(isList parentConfig && any (item: item.platform or null == platform) parentConfig)
|| (isList parentConfig' && any (item: item.platform or null == platform') parentConfig');
useComponentPlatform = component: elem component (usedPlatforms cfg.config);
# Returns whether component is used in config
useComponent = component: