Add netty worktree helpers

Add netty-specific worktree helper commands and a zsh wrapper that creates sibling worktrees and cds into them.

Also split script packaging so Darwin keeps the existing wt integration while netty gets git-worktree-based helpers.

Co-authored-by: Codex <noreply@openai.com>

home/netty-worktree.nix

@@ -0,0 +1,23 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  customScripts = import ../scripts {inherit config lib pkgs;};
+in {
+  home.packages = builtins.attrValues customScripts.nettyPackages;
+
+  programs.zsh.initContent = lib.mkAfter ''
+    wtc() {
+      if [[ $# -ne 1 ]]; then
+        printf 'usage: wtc <worktree-name>\n' >&2
+        return 1
+      fi
+
+      local worktree_path
+      worktree_path=$(command wt-create "$1") || return
+      cd -- "$worktree_path" || return
+    }
+  '';
+}

home/netty.nix

@@ -1,6 +1,6 @@
-{ ... }:
-{
+{...}: {
   imports = [
     ./common.nix
+    ./netty-worktree.nix
   ];
 }

home/scripts.nix

@@ -3,14 +3,14 @@
   lib,
   pkgs,
   ...
-}:
-let
-  customScripts = import ../scripts { inherit config lib pkgs; };
-in
-{
-  home.packages = builtins.attrValues customScripts.packages;
+}: let
+  customScripts = import ../scripts {inherit config lib pkgs;};
+in {
+  home.packages =
+    builtins.attrValues customScripts.commonPackages
+    ++ lib.optionals pkgs.stdenv.isDarwin (builtins.attrValues customScripts.darwinPackages);
 
-  home.activation.initializeThemeState = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+  home.activation.initializeThemeState = lib.hm.dag.entryAfter ["writeBoundary"] ''
     mkdir -p "${customScripts.theme.paths.stateDir}" "${customScripts.theme.paths.fzfDir}" "${customScripts.theme.paths.ghosttyDir}" "${customScripts.theme.paths.tmuxDir}"
 
     if [[ -f "${customScripts.theme.paths.stateFile}" ]]; then

home/zsh.nix

@@ -3,15 +3,14 @@
   lib,
   pkgs,
   ...
-}:
-{
+}: {
   home.file.".oh-my-zsh/custom/themes/agnoster.zsh-theme".source = ../config/agnoster.zsh-theme;
 
-  home.activation.ensureOhMyZshCache = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+  home.activation.ensureOhMyZshCache = lib.hm.dag.entryAfter ["writeBoundary"] ''
     mkdir -p "${config.xdg.cacheHome}/oh-my-zsh"
   '';
 
-  home.packages = [ pkgs.oh-my-zsh ];
+  home.packages = [pkgs.oh-my-zsh];
 
   programs.zsh = {
     enable = true;
@@ -22,40 +21,42 @@
     autosuggestion.enable = true;
     syntaxHighlighting.enable = true;
 
-    shellAliases = {
-      co = "codex --dangerously-bypass-approvals-and-sandbox";
-      ca = "cursor-agent";
-      cc = "claude";
-      ch = "claude-handoff";
-      cl = "clear";
-      gc = "git commit";
-      gd = "git diff";
-      gk = "git checkout";
-      gp = "git push";
-      gpo = "git pull origin";
-      gs = "git status";
-      ld = "lumen diff";
-      lg = "lazygit";
-      nim = "nvim .";
-    }
-    // lib.optionalAttrs pkgs.stdenv.isDarwin {
-      tailscale = "/Applications/Tailscale.app/Contents/MacOS/Tailscale";
-    };
+    shellAliases =
+      {
+        co = "codex --dangerously-bypass-approvals-and-sandbox";
+        ca = "cursor-agent";
+        cc = "claude";
+        ch = "claude-handoff";
+        cl = "clear";
+        gc = "git commit";
+        gd = "git diff";
+        gk = "git checkout";
+        gp = "git push";
+        gpo = "git pull origin";
+        gs = "git status";
+        ld = "lumen diff";
+        lg = "lazygit";
+        nim = "nvim .";
+      }
+      // lib.optionalAttrs pkgs.stdenv.isDarwin {
+        tailscale = "/Applications/Tailscale.app/Contents/MacOS/Tailscale";
+      };
 
-    envExtra = ''
-      if [[ -f "$HOME/.cargo/env" ]]; then
-        . "$HOME/.cargo/env"
-      fi
-      export NODE_NO_WARNINGS=1
-    ''
-    + lib.optionalString pkgs.stdenv.isDarwin ''
-      # Ghostty shell integration expects a resource directory; the Nix app
-      # bundle lives in the store instead of /Applications.
-      export GHOSTTY_RESOURCES_DIR="${pkgs.ghostty-bin}/Applications/Ghostty.app/Contents/Resources/ghostty"
-    ''
-    + ''
-      export MANPAGER="nvim +Man!"
-    '';
+    envExtra =
+      ''
+        if [[ -f "$HOME/.cargo/env" ]]; then
+          . "$HOME/.cargo/env"
+        fi
+        export NODE_NO_WARNINGS=1
+      ''
+      + lib.optionalString pkgs.stdenv.isDarwin ''
+        # Ghostty shell integration expects a resource directory; the Nix app
+        # bundle lives in the store instead of /Applications.
+        export GHOSTTY_RESOURCES_DIR="${pkgs.ghostty-bin}/Applications/Ghostty.app/Contents/Resources/ghostty"
+      ''
+      + ''
+        export MANPAGER="nvim +Man!"
+      '';
 
     initContent = lib.mkMerge [
       (lib.mkOrder 550 ''
@@ -86,7 +87,9 @@
 
         export BUN_INSTALL="$HOME/.bun"
         export PNPM_HOME="${
-          if pkgs.stdenv.isDarwin then "$HOME/Library/pnpm" else "${config.xdg.dataHome}/pnpm"
+          if pkgs.stdenv.isDarwin
+          then "$HOME/Library/pnpm"
+          else "${config.xdg.dataHome}/pnpm"
         }"
         bindkey -v
         typeset -U path PATH
@@ -103,9 +106,9 @@
           "/run/current-system/sw/bin"
           "/nix/var/nix/profiles/default/bin"
           ${lib.optionalString pkgs.stdenv.isDarwin ''
-            "/opt/homebrew/bin"
-            "/opt/homebrew/sbin"
-          ''}
+          "/opt/homebrew/bin"
+          "/opt/homebrew/sbin"
+        ''}
           $path
         )
 
@@ -249,15 +252,17 @@
 
         _codex_apply_highlight_styles
 
-        if command -v wt >/dev/null 2>&1; then
-          eval "$(command wt config shell init zsh)"
+        ${lib.optionalString pkgs.stdenv.isDarwin ''
+          if command -v wt >/dev/null 2>&1; then
+            eval "$(command wt config shell init zsh)"
 
-          # `wt` changes directories by sourcing directives into the current shell,
-          # so wrappers around it must stay shell functions instead of scripts.
-          wtc() {
-            wt switch --create --base @ "$@"
-          }
-        fi
+            # `wt` changes directories by sourcing directives into the current shell,
+            # so wrappers around it must stay shell functions instead of scripts.
+            wtc() {
+              wt switch --create --base @ "$@"
+            }
+          fi
+        ''}
       '')
 
       (lib.mkAfter ''

scripts/default.nix

@@ -2,22 +2,20 @@
   config,
   lib,
   pkgs,
-}:
-let
-  theme = import ../lib/theme.nix { inherit config; };
+}: let
+  theme = import ../lib/theme.nix {inherit config;};
 
   tmuxConfigs = {
     dark = pkgs.writeText "tmux-theme-dark.conf" (theme.renderTmux "dark");
     light = pkgs.writeText "tmux-theme-light.conf" (theme.renderTmux "light");
   };
 
-  mkScript =
-    {
-      file,
-      name,
-      runtimeInputs ? [ ],
-      replacements ? { },
-    }:
+  mkScript = {
+    file,
+    name,
+    runtimeInputs ? [],
+    replacements ? {},
+  }:
     pkgs.writeShellApplication {
       inherit name runtimeInputs;
       text = lib.replaceStrings (builtins.attrNames replacements) (builtins.attrValues replacements) (
@@ -25,11 +23,11 @@ let
       );
     };
 
-  packages = {
+  commonPackages = {
     ga = mkScript {
       name = "ga";
       file = ./ga.sh;
-      runtimeInputs = with pkgs; [ git ];
+      runtimeInputs = with pkgs; [git];
     };
 
     ghpr = mkScript {
@@ -73,7 +71,7 @@ let
     ni = mkScript {
       name = "ni";
       file = ./ni.sh;
-      runtimeInputs = with pkgs; [ nix ];
+      runtimeInputs = with pkgs; [nix];
     };
 
     theme = mkScript {
@@ -104,13 +102,30 @@ let
         "@TMUX_CONFIG@" = "${config.xdg.configHome}/tmux/tmux.conf";
       };
     };
+  };
 
+  darwinPackages = {
     wtc = mkScript {
       name = "wtc";
       file = ./wtc.sh;
     };
   };
-in
-{
-  inherit packages theme tmuxConfigs;
+
+  nettyPackages = {
+    wt-create = mkScript {
+      name = "wt-create";
+      file = ./wt-create.sh;
+      runtimeInputs = with pkgs; [coreutils git gnused];
+    };
+
+    wt-path = mkScript {
+      name = "wt-path";
+      file = ./wt-path.sh;
+      runtimeInputs = with pkgs; [coreutils git gnused];
+    };
+  };
+in {
+  inherit commonPackages darwinPackages nettyPackages theme tmuxConfigs;
+
+  packages = commonPackages;
 }

scripts/wt-create.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [[ $# -ne 1 ]]; then
+  printf 'usage: wt-create <worktree-name>\n' >&2
+  exit 1
+fi
+
+branch_name=$1
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || {
+  printf 'wt-create: not inside a git repository\n' >&2
+  exit 1
+}
+
+target_path=$(wt-path "$branch_name")
+
+if [[ -e "$target_path" ]]; then
+  printf 'wt-create: path already exists: %s\n' "$target_path" >&2
+  exit 1
+fi
+
+if git -C "$repo_root" show-ref --verify --quiet "refs/heads/$branch_name"; then
+  git -C "$repo_root" worktree add -- "$target_path" "$branch_name" 1>&2
+else
+  git -C "$repo_root" worktree add -b "$branch_name" -- "$target_path" HEAD 1>&2
+fi
+
+printf '%s\n' "$target_path"

scripts/wt-path.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [[ $# -ne 1 ]]; then
+  printf 'usage: wt-path <worktree-name>\n' >&2
+  exit 1
+fi
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || {
+  printf 'wt-path: not inside a git repository\n' >&2
+  exit 1
+}
+
+worktree_name=$1
+clean_name=$(printf '%s' "$worktree_name" | sed -E 's#[^[:alnum:]._-]+#-#g; s#-+#-#g; s#(^[.-]+|[.-]+$)##g')
+
+if [[ -z "$clean_name" ]]; then
+  printf 'wt-path: %s does not produce a usable path name\n' "$worktree_name" >&2
+  exit 1
+fi
+
+repo_parent=$(dirname "$repo_root")
+repo_name=$(basename "$repo_root")
+
+printf '%s/%s-%s\n' "$repo_parent" "$repo_name" "$clean_name"