add lorri

see target/lorri#96 (comment)

cli/default.nix

@@ -1,7 +1,7 @@
 { config, lib, pkgs, ... }:
 
 {
-  imports = [ ./neovim ./kakoune ];
+  imports = [ ./lorri.nix ./neovim ./kakoune ];
   home.packages = with pkgs; [
     bfs
     cachix
@@ -32,7 +32,6 @@
     enable = true;
     enableBashIntegration = true;
     enableZshIntegration = true;
-    stdlib = lib.readFile ./use_nix.sh;
   };
   programs.fzf = {
     changeDirWidgetCommand = "bfs -type d";

cli/lorri.nix

@@ -0,0 +1,38 @@
+{ pkgs, ... }:
+let lorri = pkgs.channels.lorri;
+in {
+  home.packages = [ lorri ];
+  programs.direnv = {
+    stdlib = ''
+      use_nix() {
+        eval "$(lorri direnv)"
+      }
+    '';
+  };
+  systemd.user.sockets.lorri = {
+    Unit = { Description = "lorri build daemon"; };
+    Socket = { ListenStream = "%t/lorri/daemon.socket"; };
+    Install = { WantedBy = [ "sockets.target" ]; };
+  };
+  systemd.user.services.lorri =
+    let path = with pkgs; lib.makeBinPath [ nix gnutar git mercurial ];
+    in {
+      Unit = {
+        Description = "lorri build daemon";
+        Documentation = "https://github.com/target/lorri";
+        ConditionUser = "!@system";
+        Requires = "lorri.socket";
+        After = "lorri.socket";
+        RefuseManualStart = true;
+      };
+
+      Service = {
+        ExecStart = "${lorri}/bin/lorri daemon";
+        PrivateTmp = true;
+        ProtectSystem = "strict";
+        WorkingDirectory = "%h";
+        Restart = "on-failure";
+        Environment = "PATH=${path} RUST_BACKTRACE=1";
+      };
+    };
+}

nix-channels

@@ -1,3 +1,4 @@
 https://github.com/Infinisil/all-hies/archive/master.tar.gz all-hies
 https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager
+https://github.com/target/lorri/archive/rolling-release.tar.gz lorri
 https://nixos.org/channels/nixos-unstable nixos-unstable

overlays/channels.nix

@@ -1,6 +1,7 @@
 self: super: {
   channels = {
     all-hies = import <all-hies> { };
+    lorri = import <lorri> { };
     nixos-unstable = import <nixos-unstable> { };
   };
 }