99 lines
2.6 KiB
Nix
99 lines
2.6 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}: let
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inherit
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(lib)
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concatMapStringsSep
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converge
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elem
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filterAttrsRecursive
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getExe
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mapAttrsToList
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mkForce
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mkIf
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mkOption
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optionalAttrs
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optionals
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optionalString
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types
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;
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cfg = config.services.esphome;
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stateDir = "/var/lib/private/esphome";
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esphomeParams =
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if cfg.enableUnixSocket
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then "--socket /run/esphome/esphome.sock"
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else "--address ${cfg.address} --port ${toString cfg.port}";
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format = pkgs.formats.yaml {};
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# Adapted from https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/home-automation/home-assistant.nix
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mkESPConf = name: cfg: let
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filteredConfig = converge (filterAttrsRecursive (_: v: ! elem v [null])) cfg;
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in {
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name = "${name}.yaml";
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file = pkgs.runCommandLocal "${name}.yaml" {} ''
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cp ${format.generate name filteredConfig} $out
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sed -i -e "s/'\!\([a-z_]\+\) \(.*\)'/\!\1 \2/;s/^\!\!/\!/;" $out
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sed -i 's/ {}//g' $out
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'';
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};
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in {
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options.services.esphome = {
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firmwareConfigs = mkOption {
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default = {};
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type = with types; attrsOf anything;
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};
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secretsFile = mkOption {
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default = null;
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type = types.nullOr types.path;
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};
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deleteUnmanaged = mkOption {
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default = true;
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type = types.bool;
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};
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};
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config = mkIf (cfg.enable) {
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# FIXME: https://github.com/NixOS/nixpkgs/issues/339557
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systemd.services.esphome = {
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environment.PLATFORMIO_CORE_DIR = mkForce "${stateDir}/.platformio";
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serviceConfig =
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(optionalAttrs (cfg.firmwareConfigs != {}) {
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ExecStartPre = getExe (pkgs.writeShellApplication {
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name = "esphome-exec-start-pre";
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runtimeInputs = optionals cfg.deleteUnmanaged [
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pkgs.findutils
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];
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text = ''
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if [[ ! -d ${stateDir} ]]; then
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mkdir -p ${stateDir}
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fi
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${optionalString (cfg.secretsFile != null) ''cp -f "$(realpath "${cfg.secretsFile}")" ${stateDir}/secrets.yaml''}
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${optionalString cfg.deleteUnmanaged ''find ${stateDir} -name "*.yaml" ! -name "secrets.yaml" -delete''}
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${concatMapStringsSep
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"\n"
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(dev: ''cp -f "$(realpath "${dev.file}")" ${stateDir}/"${dev.name}"'')
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(mapAttrsToList mkESPConf cfg.firmwareConfigs)}
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'';
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});
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})
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// {
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ExecStart = mkForce "${cfg.package}/bin/esphome dashboard ${esphomeParams} ${stateDir}";
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WorkingDirectory = mkForce stateDir;
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};
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};
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};
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}
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