keybase, kbfs: add modules

modules/misc/news.nix

@@ -494,6 +494,15 @@ in
           package that provides the font or theme.
         '';
       }
+
+      {
+        time = "2017-11-26T21:57:23+00:00";
+        message = ''
+          Two new modules are available:
+
+              'services.kbfs' and 'services.keybase'
+        '';
+      }
     ];
   };
 }

modules/modules.nix

@@ -46,7 +46,9 @@ let
     ./services/dunst.nix
     ./services/gnome-keyring.nix
     ./services/gpg-agent.nix
+    ./services/kbfs.nix
     ./services/keepassx.nix
+    ./services/keybase.nix
     ./services/network-manager-applet.nix
     ./services/owncloud-client.nix
     ./services/polybar.nix

modules/services/kbfs.nix

@@ -0,0 +1,66 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.kbfs;
+
+in
+
+{
+  options = {
+    services.kbfs = {
+      enable = mkEnableOption "Keybase File System";
+
+      mountPoint = mkOption {
+        type = types.str;
+        default = "keybase";
+        description = ''
+          Mount point for the Keybase filesystem, relative to
+          <envar>HOME</envar>.
+        '';
+      };
+
+      extraFlags = mkOption {
+        type = types.listOf types.str;
+        default = [];
+        example = [
+          "-label kbfs"
+          "-mount-type normal"
+        ];
+        description = ''
+          Additional flags to pass to the Keybase filesystem on launch.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.user.services.kbfs = {
+      Unit = {
+        Description = "Keybase File System";
+        Requires = [ "keybase.service" ];
+        After = [ "keybase.service" ];
+      };
+
+      Service =
+        let
+          mountPoint = "\"%h/${cfg.mountPoint}\"";
+        in {
+          Environment = "PATH=/run/wrappers KEYBASE_SYSTEMD=1";
+          ExecStartPre = "${pkgs.coreutils}/bin/mkdir -p ${mountPoint}";
+          ExecStart ="${pkgs.kbfs}/bin/kbfsfuse ${toString cfg.extraFlags} ${mountPoint}";
+          ExecStopPost = "/run/wrappers/bin/fusermount -u ${mountPoint}";
+          Restart = "on-failure";
+          PrivateTmp = true;
+        };
+
+      Install = {
+        WantedBy = [ "default.target" ];
+      };
+    };
+
+    services.keybase.enable = true;
+  };
+}

modules/services/keybase.nix

@@ -0,0 +1,35 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.keybase;
+
+in
+
+{
+  options = {
+    services.keybase = {
+      enable = mkEnableOption "Keybase";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.user.services.keybase = {
+      Unit = {
+        Description = "Keybase service";
+      };
+
+      Service = {
+        ExecStart = "${pkgs.keybase}/bin/keybase service --auto-forked";
+        Restart = "on-failure";
+        PrivateTmp = true;
+      };
+
+      Install = {
+        WantedBy = [ "default.target" ];
+      };
+    };
+  };
+}