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https://github.com/NixOS/nixpkgs.git
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1050f1487b
We are running over 6000 tests by now and they take around 5 minutes on faster machines and tests alot of components that endusers will not actually be using. It is sufficient if we run them on package upgrades and in the passthrough test.
287 lines
10 KiB
Nix
287 lines
10 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.home-assistant;
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# cfg.config != null can be assumed here
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configJSON = pkgs.writeText "configuration.json"
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(builtins.toJSON (if cfg.applyDefaultConfig then
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(recursiveUpdate defaultConfig cfg.config) else cfg.config));
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configFile = pkgs.runCommand "configuration.yaml" { preferLocalBuild = true; } ''
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${pkgs.remarshal}/bin/json2yaml -i ${configJSON} -o $out
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# Hack to support custom yaml objects,
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# i.e. secrets: https://www.home-assistant.io/docs/configuration/secrets/
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sed -i -e "s/'\!\([a-z_]\+\) \(.*\)'/\!\1 \2/;s/^\!\!/\!/;" $out
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'';
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lovelaceConfigJSON = pkgs.writeText "ui-lovelace.json"
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(builtins.toJSON cfg.lovelaceConfig);
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lovelaceConfigFile = pkgs.runCommand "ui-lovelace.yaml" { preferLocalBuild = true; } ''
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${pkgs.remarshal}/bin/json2yaml -i ${lovelaceConfigJSON} -o $out
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'';
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availableComponents = cfg.package.availableComponents;
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usedPlatforms = config:
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if isAttrs config then
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optional (config ? platform) config.platform
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++ concatMap usedPlatforms (attrValues config)
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else if isList config then
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concatMap usedPlatforms config
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else [ ];
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# Given a component "platform", looks up whether it is used in the config
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# as `platform = "platform";`.
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#
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# For example, the component mqtt.sensor is used as follows:
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# config.sensor = [ {
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# platform = "mqtt";
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# ...
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# } ];
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useComponentPlatform = component: elem component (usedPlatforms cfg.config);
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# Returns whether component is used in config
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useComponent = component:
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hasAttrByPath (splitString "." component) cfg.config
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|| useComponentPlatform component;
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# List of components used in config
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extraComponents = filter useComponent availableComponents;
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package = if (cfg.autoExtraComponents && cfg.config != null)
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then (cfg.package.override { inherit extraComponents; })
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else cfg.package;
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# If you are changing this, please update the description in applyDefaultConfig
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defaultConfig = {
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homeassistant.time_zone = config.time.timeZone;
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http.server_port = cfg.port;
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} // optionalAttrs (cfg.lovelaceConfig != null) {
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lovelace.mode = "yaml";
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};
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in {
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meta.maintainers = with maintainers; [ dotlambda ];
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options.services.home-assistant = {
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enable = mkEnableOption "Home Assistant";
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configDir = mkOption {
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default = "/var/lib/hass";
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type = types.path;
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description = "The config directory, where your <filename>configuration.yaml</filename> is located.";
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};
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port = mkOption {
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default = 8123;
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type = types.int;
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description = "The port on which to listen.";
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};
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applyDefaultConfig = mkOption {
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default = true;
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type = types.bool;
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description = ''
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Setting this option enables a few configuration options for HA based on NixOS configuration (such as time zone) to avoid having to manually specify configuration we already have.
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</para>
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<para>
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Currently one side effect of enabling this is that the <literal>http</literal> component will be enabled.
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</para>
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<para>
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This only takes effect if <literal>config != null</literal> in order to ensure that a manually managed <filename>configuration.yaml</filename> is not overwritten.
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'';
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};
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config = mkOption {
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default = null;
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# Migrate to new option types later: https://github.com/NixOS/nixpkgs/pull/75584
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type = with lib.types; let
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valueType = nullOr (oneOf [
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bool
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int
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float
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str
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(lazyAttrsOf valueType)
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(listOf valueType)
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]) // {
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description = "Yaml value";
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emptyValue.value = {};
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};
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in valueType;
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example = literalExample ''
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{
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homeassistant = {
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name = "Home";
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latitude = "!secret latitude";
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longitude = "!secret longitude";
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elevation = "!secret elevation";
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unit_system = "metric";
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time_zone = "UTC";
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};
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frontend = {
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themes = "!include_dir_merge_named themes";
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};
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http = { };
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feedreader.urls = [ "https://nixos.org/blogs.xml" ];
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}
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'';
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description = ''
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Your <filename>configuration.yaml</filename> as a Nix attribute set.
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Beware that setting this option will delete your previous <filename>configuration.yaml</filename>.
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<link xlink:href="https://www.home-assistant.io/docs/configuration/secrets/">Secrets</link>
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are encoded as strings as shown in the example.
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'';
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};
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configWritable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to make <filename>configuration.yaml</filename> writable.
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This only has an effect if <option>config</option> is set.
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This will allow you to edit it from Home Assistant's web interface.
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However, bear in mind that it will be overwritten at every start of the service.
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'';
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};
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lovelaceConfig = mkOption {
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default = null;
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type = with types; nullOr attrs;
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# from https://www.home-assistant.io/lovelace/yaml-mode/
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example = literalExample ''
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{
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title = "My Awesome Home";
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views = [ {
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title = "Example";
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cards = [ {
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type = "markdown";
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title = "Lovelace";
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content = "Welcome to your **Lovelace UI**.";
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} ];
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} ];
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}
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'';
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description = ''
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Your <filename>ui-lovelace.yaml</filename> as a Nix attribute set.
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Setting this option will automatically add
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<literal>lovelace.mode = "yaml";</literal> to your <option>config</option>.
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Beware that setting this option will delete your previous <filename>ui-lovelace.yaml</filename>
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'';
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};
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lovelaceConfigWritable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to make <filename>ui-lovelace.yaml</filename> writable.
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This only has an effect if <option>lovelaceConfig</option> is set.
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This will allow you to edit it from Home Assistant's web interface.
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However, bear in mind that it will be overwritten at every start of the service.
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'';
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};
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package = mkOption {
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default = pkgs.home-assistant.overrideAttrs (oldAttrs: {
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doInstallCheck = false;
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});
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defaultText = literalExample ''
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pkgs.home-assistant.overrideAttrs (oldAttrs: {
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doInstallCheck = false;
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})
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'';
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type = types.package;
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example = literalExample ''
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pkgs.home-assistant.override {
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extraPackages = ps: with ps; [ colorlog ];
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}
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'';
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description = ''
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Home Assistant package to use. By default the tests are disabled, as they take a considerable amout of time to complete.
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Override <literal>extraPackages</literal> or <literal>extraComponents</literal> in order to add additional dependencies.
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If you specify <option>config</option> and do not set <option>autoExtraComponents</option>
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to <literal>false</literal>, overriding <literal>extraComponents</literal> will have no effect.
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'';
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};
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autoExtraComponents = mkOption {
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default = true;
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type = types.bool;
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description = ''
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If set to <literal>true</literal>, the components used in <literal>config</literal>
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are set as the specified package's <literal>extraComponents</literal>.
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This in turn adds all packaged dependencies to the derivation.
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You might still see import errors in your log.
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In this case, you will need to package the necessary dependencies yourself
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or ask for someone else to package them.
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If a dependency is packaged but not automatically added to this list,
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you might need to specify it in <literal>extraPackages</literal>.
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'';
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};
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openFirewall = mkOption {
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default = false;
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type = types.bool;
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description = "Whether to open the firewall for the specified port.";
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};
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};
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config = mkIf cfg.enable {
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networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ cfg.port ];
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systemd.services.home-assistant = {
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description = "Home Assistant";
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after = [ "network.target" ];
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preStart = optionalString (cfg.config != null) (if cfg.configWritable then ''
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cp --no-preserve=mode ${configFile} "${cfg.configDir}/configuration.yaml"
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'' else ''
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rm -f "${cfg.configDir}/configuration.yaml"
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ln -s ${configFile} "${cfg.configDir}/configuration.yaml"
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'') + optionalString (cfg.lovelaceConfig != null) (if cfg.lovelaceConfigWritable then ''
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cp --no-preserve=mode ${lovelaceConfigFile} "${cfg.configDir}/ui-lovelace.yaml"
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'' else ''
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rm -f "${cfg.configDir}/ui-lovelace.yaml"
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ln -s ${lovelaceConfigFile} "${cfg.configDir}/ui-lovelace.yaml"
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'');
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serviceConfig = {
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ExecStart = "${package}/bin/hass --config '${cfg.configDir}'";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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User = "hass";
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Group = "hass";
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Restart = "on-failure";
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ProtectSystem = "strict";
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ReadWritePaths = let
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cfgPath = [ "config" "homeassistant" "allowlist_external_dirs" ];
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value = attrByPath cfgPath [] cfg;
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allowPaths = if isList value then value else singleton value;
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in [ "${cfg.configDir}" ] ++ allowPaths;
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KillSignal = "SIGINT";
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PrivateTmp = true;
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RemoveIPC = true;
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AmbientCapabilities = "cap_net_raw,cap_net_admin+eip";
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};
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path = [
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"/run/wrappers" # needed for ping
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];
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};
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systemd.targets.home-assistant = rec {
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description = "Home Assistant";
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wantedBy = [ "multi-user.target" ];
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wants = [ "home-assistant.service" ];
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after = wants;
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};
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users.users.hass = {
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home = cfg.configDir;
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createHome = true;
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group = "hass";
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extraGroups = [ "dialout" ];
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uid = config.ids.uids.hass;
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};
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users.groups.hass.gid = config.ids.gids.hass;
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};
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}
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