Add bookmark this script

Based on Luke Smith's script created during his "Bookmarking for Unix
Chads (For Browsers, Terminals, IDEs and everything else)" video.

https://videos.lukesmith.xyz/w/o5fiME4oJMdVzwSu7mA9mc

modules/home-manager/cli/bookmarkthis.nix

@@ -0,0 +1,68 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  inherit (lib) mkEnableOption mkOption;
+
+  cfg = config.cli.${name};
+  name = "bookmarkthis";
+in
+{
+  options.cli.${name} = {
+    enable = mkEnableOption "Enable ${name}";
+
+    snippetsFile = mkOption {
+      default = "${config.xdg.dataHome}/snippets.txt";
+      type = lib.types.str;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    home = {
+      packages = with pkgs; [
+        (pkgs.writeShellApplication {
+          name = "bookmarkthis";
+
+          text = ''
+            message() {
+              if command -v  ${lib.getExe libnotify} > /dev/null; then
+                ${lib.getExe libnotify} "$1" "$2"
+              else
+                echo "$2"
+              fi
+            }
+
+            main() {
+              bookmark="$(xclip -o)"
+              file="$SNIPPETS_FILE"
+
+              if grep -q "^$bookmark$" "$file"; then
+                message "Oops." "Already bookmarked." >&2
+
+                exit 2
+              fi
+
+              echo "$bookmark" >> "$file"
+
+              message "Bookmark added!" "$bookmark is now saved to the file."
+            }
+
+            main
+          '';
+        })
+      ];
+
+      sessionVariables = {
+        SNIPPETS_FILE = cfg.snippetsFile;
+      };
+    };
+
+    programs.zsh.zsh-abbr.abbreviations = lib.optionalAttrs (config.programs.zsh.enable) {
+      "sn" = "${config.home.sessionVariables.EDITOR} $SNIPPETS_FILE";
+    };
+  };
+}

modules/home-manager/cli/default.nix

@@ -1,6 +1,7 @@
 {
   imports = [
     ./bluetuith.nix
+    ./bookmarkthis.nix
     ./dev-commit.nix
     ./direnv.nix
     ./fzf.nix