home: jujutsu: simplify 'jj jj' alias

This is to serve as a reminder of _how_ to add a local configuration
file.

flake.lock

@@ -14,11 +14,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1747575206,
-        "narHash": "sha256-NwmAFuDUO/PFcgaGGr4j3ozG9Pe5hZ/ogitWhY+D81k=",
+        "lastModified": 1750173260,
+        "narHash": "sha256-9P1FziAwl5+3edkfFcr5HeGtQUtrSdk/MksX39GieoA=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "4835b1dc898959d8547a871ef484930675cb47f1",
+        "rev": "531beac616433bac6f9e2a19feb8e99a22a66baf",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749398372,
-        "narHash": "sha256-tYBdgS56eXYaWVW3fsnPQ/nFlgWi/Z2Ymhyu21zVM98=",
+        "lastModified": 1751413152,
+        "narHash": "sha256-Tyw1RjYEsp5scoigs1384gIg6e0GoBVjms4aXFfRssQ=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "9305fe4e5c2a6fcf5ba6a3ff155720fbe4076569",
+        "rev": "77826244401ea9de6e3bac47c2db46005e1f30b5",
         "type": "github"
       },
       "original": {
@@ -117,11 +117,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1747372754,
-        "narHash": "sha256-2Y53NGIX2vxfie1rOW0Qb86vjRZ7ngizoo+bnXU9D9k=",
+        "lastModified": 1750779888,
+        "narHash": "sha256-wibppH3g/E2lxU43ZQHC5yA/7kIKLGxVEnsnVK1BtRg=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
+        "rev": "16ec914f6fb6f599ce988427d9d94efddf25fe6d",
         "type": "github"
       },
       "original": {
@@ -159,11 +159,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749400020,
-        "narHash": "sha256-0nTmHO8AYgRYk5v6zw5oZ3x9nh+feb+Isn7WNe318M0=",
+        "lastModified": 1751429452,
+        "narHash": "sha256-4s5vRtaqdNhVBnbOWOzBNKrRa0ShQTLoEPjJp3joeNI=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2835e8ba0ad99ba86d4a5e497a962ec9fa35e48f",
+        "rev": "df12269039dcf752600b1bcc176bacf2786ec384",
         "type": "github"
       },
       "original": {
@@ -175,11 +175,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1749285348,
-        "narHash": "sha256-frdhQvPbmDYaScPFiCnfdh3B/Vh81Uuoo0w5TkWmmjU=",
+        "lastModified": 1751952840,
+        "narHash": "sha256-SIkjQb9PPGvR/EcZAU8UZEnO9dwY2Z/BrDWgtyZd7OA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3e3afe5174c561dee0df6f2c2b2236990146329f",
+        "rev": "27278798fe68d7f81131dd7ab62b8ea2b795cd56",
         "type": "github"
       },
       "original": {

hosts/nixos/aramis/home.nix

@@ -20,7 +20,7 @@
       element-desktop # Matrix client
       jellyfin-media-player # Wraps the webui and mpv together
       pavucontrol # Audio mixer GUI
-      transgui # Transmission remote
+      trgui-ng # Transmission remote
     ];
     # Minimal video player
     mpv.enable = true;

modules/home/default.nix

@@ -24,6 +24,7 @@
     ./gtk
     ./htop
     ./jq
+    ./jujutsu
     ./keyboard
     ./mail
     ./mpv
@@ -51,9 +52,6 @@
   # First sane reproducible version
   home.stateVersion = "20.09";
 
-  # Who am I?
-  home.username = "ambroisie";
-
   # Start services automatically
   systemd.user.startServices = "sd-switch";
 }

modules/home/delta/default.nix

@@ -11,6 +11,10 @@ in
     git = {
       enable = my.mkDisableOption "git integration";
     };
+
+    jujutsu = {
+      enable = my.mkDisableOption "jujutsu integration";
+    };
   };
 
   config = lib.mkIf cfg.enable {
@@ -30,6 +34,13 @@ in
           enabled.
         '';
       }
+      {
+        assertion = cfg.jujutsu.enable -> cfg.git.enable;
+        message = ''
+          `config.my.home.delta.jujutsu` relies on `config.my.home.delta.git`
+          being enabled.
+        '';
+      }
     ];
 
     home.packages = [ cfg.package ];
@@ -64,5 +75,23 @@ in
         };
       };
     };
+
+    programs.jujutsu = lib.mkIf cfg.jujutsu.enable {
+      settings = {
+        merge-tools = {
+          delta = {
+            # Errors are signaled with exit codes greater or equal to 2
+            diff-expected-exit-codes = [ 0 1 ];
+          };
+        };
+
+        ui = {
+          # Delta expects a `git diff` input
+          diff-formatter = ":git";
+
+          pager = "${lib.getExe cfg.package}";
+        };
+      };
+    };
   };
 }

modules/home/jujutsu/default.nix

@@ -0,0 +1,131 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.home.jujutsu;
+
+  inherit (lib.my) mkMailAddress;
+in
+{
+  options.my.home.jujutsu = with lib; {
+    enable = my.mkDisableOption "jujutsu configuration";
+
+    package = mkPackageOption pkgs "jujutsu" { };
+  };
+
+  config = lib.mkIf cfg.enable {
+    assertions = [
+      {
+        # For `jj git` commands
+        assertion = cfg.enable -> config.my.home.git.enable;
+        message = ''
+          `config.my.home.jujutsu` relies on `config.my.home.git` being enabled.
+        '';
+      }
+    ];
+
+    programs.jujutsu = {
+      enable = true;
+
+      inherit (cfg) package;
+
+      settings = {
+        # Who am I?
+        user = {
+          name = "Bruno BELANYI";
+          email = mkMailAddress "bruno" "belanyi.fr";
+        };
+
+        aliases = {
+          jj = [ ];
+          # FIXME:
+          # * topo sort by default (I think? test it)
+          # * still not a big fan of the template
+          lol = [ "log" "-r" "..@" "-T" "builtin_log_oneline" ];
+          lola = [ "lol" "-r" "all()" ];
+          # FIXME: equivalent to `git switch -`
+          # See https://github.com/jj-vcs/jj/issues/2871
+          # Might be broken recently https://discord.com/channels/968932220549103686/1380272574709366989/1380432041983606855
+          # TODO:
+          # * `pick` (https://github.com/jj-vcs/jj/issues/5446): [ "util" "exec" "--" "bash" "-c" "jj log -p -r \"diff_contains($1)\"" ]
+          # * `root`: `jj workspace root` (barely necessary then)
+        };
+
+        # FIXME: git equivalents
+        # blame = {
+        #   coloring = "repeatedLines";
+        #   markIgnoredLines = true;
+        #   markUnblamables = true;
+        # };
+        # FIXME: log colors should probably match git
+        # FIXME: patience diff?
+        # FIXME: fetch prune/pruneTags?
+        # FIXME: pull.rebase=true? Probably true TBH
+        # FIXME: push.default=simple? Probably true TBH
+        # FIXME: conflict style? ui.conflict-marker-style=git is diff3/zdiff3
+
+        # FIXME: from ma_9's config, plus my own stuff
+        # snapshot = {
+        #   auto-track = "none()";
+        # };
+        #
+        # ui = {
+        #   diff-editor = ":builtin"; # To silence hints
+        #   movement = {
+        #     edit = false;
+        #   };
+        # };
+
+        templates = {
+          # Equivalent to `commit.verbose = true` in Git
+          draft_commit_description = "commit_description_verbose(self)";
+        };
+
+        template-aliases = {
+          "commit_description_verbose(commit)" = ''
+            concat(
+              commit_description(commit),
+              "JJ: ignore-rest\n",
+              diff.git(),
+            )
+          '';
+          # FIXME: use `diff.summary()` instead? Supported by syntax highlighting
+          # See https://github.com/jj-vcs/jj/issues/1946#issuecomment-2572986485
+          # FIXME: tree-sitter grammar isn't in `nvim-treesitter` (https://github.com/kareigu/tree-sitter-jjdescription)
+          "commit_description(commit)" = ''
+            concat(
+              commit.description(), "\n",
+              "JJ: This commit contains the following changes:\n",
+              indent("JJ:    ", diff.stat(72)),
+            )
+          '';
+        };
+
+        "--scope" = [
+          # Multiple identities
+          {
+            "--when" = {
+              repositories = [ "~/git/EPITA/" ];
+            };
+            user = {
+              name = "Bruno BELANYI";
+              email = mkMailAddress "bruno.belanyi" "epita.fr";
+            };
+          }
+          {
+            "--when" = {
+              repositories = [ "~/git/work/" ];
+            };
+            user = {
+              name = "Bruno BELANYI";
+              email = mkMailAddress "ambroisie" "google.com";
+            };
+          }
+        ];
+      };
+    };
+
+    # To drop in a `local.toml` configuration, not-versioned
+    xdg.configFile = {
+      "jj/conf.d/.keep".text = "";
+    };
+  };
+}

modules/nixos/services/drone/server/default.nix

@@ -6,8 +6,8 @@ in
   config = lib.mkIf cfg.enable {
     systemd.services.drone-server = {
       wantedBy = [ "multi-user.target" ];
-      after = [ "postgresql.service" ];
-      requires = [ "postgresql.service" ];
+      after = [ "postgresql.target" ];
+      requires = [ "postgresql.target" ];
       serviceConfig = {
         EnvironmentFile = [
           cfg.secretFile

modules/nixos/services/tandoor-recipes/default.nix

@@ -26,18 +26,16 @@ in
     services.tandoor-recipes = {
       enable = true;
 
+      database = {
+        createLocally = true;
+      };
+
       port = cfg.port;
       extraConfig =
         let
           tandoorRecipesDomain = "recipes.${config.networking.domain}";
         in
         {
-          # Use PostgreSQL
-          DB_ENGINE = "django.db.backends.postgresql";
-          POSTGRES_HOST = "/run/postgresql";
-          POSTGRES_USER = "tandoor_recipes";
-          POSTGRES_DB = "tandoor_recipes";
-
           # Security settings
           ALLOWED_HOSTS = tandoorRecipesDomain;
           CSRF_TRUSTED_ORIGINS = "https://${tandoorRecipesDomain}";
@@ -49,27 +47,12 @@ in
 
     systemd.services = {
       tandoor-recipes = {
-        after = [ "postgresql.service" ];
-        requires = [ "postgresql.service" ];
-
         serviceConfig = {
           EnvironmentFile = cfg.secretKeyFile;
         };
       };
     };
 
-    # Set-up database
-    services.postgresql = {
-      enable = true;
-      ensureDatabases = [ "tandoor_recipes" ];
-      ensureUsers = [
-        {
-          name = "tandoor_recipes";
-          ensureDBOwnership = true;
-        }
-      ];
-    };
-
     my.services.nginx.virtualHosts = {
       recipes = {
         inherit (cfg) port;

modules/nixos/services/transmission/default.nix

@@ -47,6 +47,7 @@ in
       enable = true;
       package = pkgs.transmission_4;
       group = "media";
+      webHome = pkgs.trgui-ng-web;
 
       downloadDirPermissions = "775";
 

modules/nixos/services/woodpecker/server/default.nix

@@ -24,8 +24,8 @@ in
     };
 
     systemd.services.woodpecker-server = {
-      after = [ "postgresql.service" ];
-      requires = [ "postgresql.service" ];
+      after = [ "postgresql.target" ];
+      requires = [ "postgresql.target" ];
 
       serviceConfig = {
         # Set username for DB access