fix(client): simply ssh-agent config and fix for wsl

configs/client.nix

@@ -1,19 +1,23 @@
-{ pkgs, ... }:
+{ pkgs, config, ... }:
 {
   imports = [
     ./common.nix
 
     ../programs/neovim
     ../programs/rust.nix
-    ../programs/ssh-agent.nix
   ];
 
-  environment.systemPackages = with pkgs; [
-    ffmpeg-full
-    fastfetch
-    lazygit
-    nixd
-  ];
+  environment = {
+    systemPackages = with pkgs; [
+      ffmpeg-full
+      fastfetch
+      lazygit
+      nixd
+    ];
+
+    # fix for wsl, `prefer` does not work if your SSH_ASKPASS is empty/unset
+    variables.SSH_ASKPASS_REQUIRE = if config.programs.ssh.enableAskPassword then "prefer" else "never";
+  };
 
   networking = {
     useNetworkd = false;
@@ -24,7 +28,10 @@
     };
   };
 
-  programs.nix-ld.enable = true;
+  programs = {
+    nix-ld.enable = true;
+    ssh.startAgent = true;
+  };
 
   virtualisation.docker.enable = true;
 }

programs/ssh-agent.nix

@@ -1,13 +0,0 @@
-{ lib, pkgs, ... }:
-{
-  environment.sessionVariables = {
-    SSH_AUTH_SOCK = "\${XDG_RUNTIME_DIR}/ssh-agent";
-    SSH_ASKPASS_REQUIRE = "prefer";
-  };
-
-  systemd.user.services.ssh-agent = {
-    wantedBy = [ "default.target" ];
-    environment.SSH_AUTH_SOCK = "%t/ssh-agent";
-    script = "${lib.getExe' pkgs.openssh "ssh-agent"} -d -a $SSH_AUTH_SOCK";
-  };
-}

systems/fuji-wsl/default.nix

@@ -12,6 +12,12 @@
 
   environment.sessionVariables.LD_LIBRARY_PATH = [ "/run/opengl-driver/lib" ];
 
+  hm.programs.fish.interactiveShellInit = lib.mkAfter ''
+    if test -f ~/.ssh/id_ed25519
+      ssh-add -l | grep -q (ssh-keygen -lf ~/.ssh/id_ed25519) || ssh-add ~/.ssh/id_ed25519
+    end
+  '';
+
   wsl = {
     enable = true;
     defaultUser = "leo";