uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/web-apps/icingaweb2/module-monitoring.nix

@@ -0,0 +1,157 @@
+{ config, lib, pkgs, ... }: with lib; let
+  cfg = config.services.icingaweb2.modules.monitoring;
+
+  configIni = ''
+    [security]
+    protected_customvars = "${concatStringsSep "," cfg.generalConfig.protectedVars}"
+  '';
+
+  backendsIni = let
+    formatBool = b: if b then "1" else "0";
+  in concatStringsSep "\n" (mapAttrsToList (name: config: ''
+    [${name}]
+    type = "ido"
+    resource = "${config.resource}"
+    disabled = "${formatBool config.disabled}"
+  '') cfg.backends);
+
+  transportsIni = concatStringsSep "\n" (mapAttrsToList (name: config: ''
+    [${name}]
+    type = "${config.type}"
+    ${optionalString (config.instance != null) ''instance = "${config.instance}"''}
+    ${optionalString (config.type == "local" || config.type == "remote") ''path = "${config.path}"''}
+    ${optionalString (config.type != "local") ''
+      host = "${config.host}"
+      ${optionalString (config.port != null) ''port = "${toString config.port}"''}
+      user${optionalString (config.type == "api") "name"} = "${config.username}"
+    ''}
+    ${optionalString (config.type == "api") ''password = "${config.password}"''}
+    ${optionalString (config.type == "remote") ''resource = "${config.resource}"''}
+  '') cfg.transports);
+
+in {
+  options.services.icingaweb2.modules.monitoring = with types; {
+    enable = mkOption {
+      type = bool;
+      default = true;
+      description = "Whether to enable the icingaweb2 monitoring module.";
+    };
+
+    generalConfig = {
+      mutable = mkOption {
+        type = bool;
+        default = false;
+        description = "Make config.ini of the monitoring module mutable (e.g. via the web interface).";
+      };
+
+      protectedVars = mkOption {
+        type = listOf str;
+        default = [ "*pw*" "*pass*" "community" ];
+        description = "List of string patterns for custom variables which should be excluded from user’s view.";
+      };
+    };
+
+    mutableBackends = mkOption {
+      type = bool;
+      default = false;
+      description = "Make backends.ini of the monitoring module mutable (e.g. via the web interface).";
+    };
+
+    backends = mkOption {
+      default = { icinga = { resource = "icinga_ido"; }; };
+      description = "Monitoring backends to define";
+      type = attrsOf (submodule ({ name, ... }: {
+        options = {
+          name = mkOption {
+            visible = false;
+            default = name;
+            type = str;
+            description = "Name of this backend";
+          };
+
+          resource = mkOption {
+            type = str;
+            description = "Name of the IDO resource";
+          };
+
+          disabled = mkOption {
+            type = bool;
+            default = false;
+            description = "Disable this backend";
+          };
+        };
+      }));
+    };
+
+    mutableTransports = mkOption {
+      type = bool;
+      default = true;
+      description = "Make commandtransports.ini of the monitoring module mutable (e.g. via the web interface).";
+    };
+
+    transports = mkOption {
+      default = {};
+      description = "Command transports to define";
+      type = attrsOf (submodule ({ name, ... }: {
+        options = {
+          name = mkOption {
+            visible = false;
+            default = name;
+            type = str;
+            description = "Name of this transport";
+          };
+
+          type = mkOption {
+            type = enum [ "api" "local" "remote" ];
+            default = "api";
+            description = "Type of  this transport";
+          };
+
+          instance = mkOption {
+            type = nullOr str;
+            default = null;
+            description = "Assign a icinga instance to this transport";
+          };
+
+          path = mkOption {
+            type = str;
+            description = "Path to the socket for local or remote transports";
+          };
+
+          host = mkOption {
+            type = str;
+            description = "Host for the api or remote transport";
+          };
+
+          port = mkOption {
+            type = nullOr str;
+            default = null;
+            description = "Port to connect to for the api or remote transport";
+          };
+
+          username = mkOption {
+            type = str;
+            description = "Username for the api or remote transport";
+          };
+
+          password = mkOption {
+            type = str;
+            description = "Password for the api transport";
+          };
+
+          resource = mkOption {
+            type = str;
+            description = "SSH identity resource for the remote transport";
+          };
+        };
+      }));
+    };
+  };
+
+  config = mkIf (config.services.icingaweb2.enable && cfg.enable) {
+    environment.etc = { "icingaweb2/enabledModules/monitoring" = { source = "${pkgs.icingaweb2}/modules/monitoring"; }; }
+      // optionalAttrs (!cfg.generalConfig.mutable) { "icingaweb2/modules/monitoring/config.ini".text = configIni; }
+      // optionalAttrs (!cfg.mutableBackends) { "icingaweb2/modules/monitoring/backends.ini".text = backendsIni; }
+      // optionalAttrs (!cfg.mutableTransports) { "icingaweb2/modules/monitoring/commandtransports.ini".text = transportsIni; };
+  };
+}