Add latest file key and reorganise

alex/fish/functions/bangbang.fish

@@ -22,8 +22,3 @@ function bind_dollar
 			commandline --insert '$'
 	end
 end
-
-function fish_user_key_bindings
-	bind ! bind_bang
-	bind '$' bind_dollar
-end

alex/fish/functions/fish-user-key-bindings.fish

@@ -0,0 +1,5 @@
+function fish_user_key_bindings
+	bind ! bind_bang
+	bind '$' bind_dollar
+	bind @ bind_at
+end

alex/fish/functions/latest-file.fish

@@ -0,0 +1,20 @@
+function bind_at
+	set -l token (commandline -t)
+	if string match -q -- "*@" "$token"
+		commandline -f backward-delete-char
+		set -l newest_file
+		for f in (command ls -tA)
+			if test -f "$f"
+				set newest_file "$f"
+				break
+			end
+		end
+		if test -n "$newest_file"
+			commandline -i (string escape -- "$newest_file")
+		else
+			commandline -i "@"
+		end
+	else
+		commandline -i "@"
+	end
+end

alex/home.nix

@@ -181,10 +181,13 @@
   programs.fish = {
     enable = true;
     interactiveShellInit = ''
+      source ~/.config/fish/functions/latest-file.fish
       source ~/.config/fish/functions/cardboard.fish
       source ~/.config/fish/functions/bangbang.fish
       source ~/.config/fish/functions/borg-h.fish
 
+      source ~/.config/fish/functions/fish-user-key-bindings.fish
+
       set PATH ~/.cargo/bin $PATH
       set PATH ~/scripts $PATH
       set PATH ~/.local/bin $PATH