chore: add tests and fix for fish shell

Author: mikesmithgh

README.md

@@ -883,15 +883,15 @@ The API is available via the `kitty-scrollback.api` module. e.g., `require('kitt
 > [!NOTE]  
 > Command-line editing is only supported for `bash`, `fish`, or `zsh`
 
-Generate the shell configuration and add them to the appropriate location. The comments in the shell configuration will provide
+Generate the configuration and add it to the appropriate location. The comments in the configuration will provide
 additional setup instructions. `KittyScrollbackGenerateCommandLineEditing` requires one parameter, either `bash`, `fish`, or `zsh`.
   ```sh
   nvim --headless +'KittyScrollbackGenerateCommandLineEditing <shell>' # replace <shell> with bash, fish, or zsh
   ```
 
 The generated configuration will mention the environment variable `KITTY_SCROLLBACK_NVIM_EDIT_ARGS`. This can be used to pass arguments to kitty-scrollback.nvim in command-line editing mode.
 This allows [Kitten Arguments](#kitten-arguments) setup specific to opening kitty-scrollback.nvim in command-line editing mode
-that you may want to configure differently your standard kitty-scrollback.nvim setup.
+that you may want to configure differently than your standard kitty-scrollback.nvim setup.
 
 ### Example setups
 <details> 

scripts/edit_command_line.sh

@@ -9,6 +9,18 @@ fi
 # the last argument is used because in the case of zsh, commands maybe be passed before the filename e.g., (-c)
 for input_file; do true; done
 
+case "$input_file" in
+*.fish)
+  shell_type="fish"
+  ;;
+*.zsh)
+  shell_type="zsh"
+  ;;
+*)
+  shell_type="bash"
+  ;;
+esac
+
 # after exiting this script and before it has been read by kitty-scrollback.nvim
 # the contents of the original input_file may be altered
 # avoid this by copying the input_file to a new file that will be referenced
@@ -26,5 +38,7 @@ kitty @ kitten "$ksb_dir/python/kitty_scrollback_nvim.py" --env "KITTY_SCROLLBAC
 # has had time to get the scrollback buffer from kitty
 sleep 1
 
-# exit non-zero so that the command is not executed in bash
-exit 1
+if [ "$shell_type" = "bash" ]; then
+  # exit non-zero so that the command is not executed in bash
+  exit 1
+fi

tests/kitty-scrollback/helpers.lua

@@ -311,6 +311,15 @@ M.open_tmux_kitty_scrollback_nvim = function()
   }
 end
 
+M.alt_e = function()
+  return {
+    [[\x1be]],
+    opts = {
+      send_by = 'string',
+    },
+  }
+end
+
 M.control_enter = function()
   return {
     [[\x1b[13;5u]],

tests/kitty-scrollback/kitty_scrollback_fish_spec.lua

@@ -37,6 +37,12 @@ describe('kitty-scrollback.nvim', function()
 function fish_prompt  
   echo "fish \$ " 
 end                   
+function kitty_scrollback_edit_command_buffer
+    set -lx VISUAL ']] .. ksb_dir .. [[/scripts/edit_command_line.sh'
+    edit_command_buffer
+    commandline ''
+end
+bind --mode default \\ee kitty_scrollback_edit_command_buffer
 ]]),
       h.with_pause_seconds_before(h.send_without_newline(h.clear())),
     })
@@ -110,4 +116,41 @@ Press ENTER or type command to continue.*]],
       }
     )
   end)
+
+  it('should open command in command-line editing mode', function()
+    h.assert_screen_equals(
+      h.feed_kitty({
+        h.with_pause_seconds_before(h.send_without_newline([[nacho cheese]])),
+        h.alt_e(),
+        h.with_pause_seconds_before(h.send_without_newline([[ciwecho]]), 2),
+        h.send_without_newline(h.control_enter()),
+      }),
+      {
+        stdout = [[
+fish $ echo cheese
+cheese
+fish $
+]],
+        cursor_y = 3,
+        cursor_x = 8,
+      }
+    )
+  end)
+
+  it('should clear command if no-op in command-line editing mode', function()
+    h.assert_screen_equals(
+      h.feed_kitty({
+        h.with_pause_seconds_before(h.send_without_newline([[nacho cheese]])),
+        h.alt_e(),
+        h.with_pause_seconds_before([[:qa!]]),
+      }),
+      {
+        stdout = [[
+fish $
+]],
+        cursor_y = 1,
+        cursor_x = 8,
+      }
+    )
+  end)
 end)

tests/kitty.conf

@@ -24,6 +24,8 @@ map kitty_mod+g kitty_scrollback_nvim --config ksb_builtin_last_cmd_output
 mouse_map kitty_mod+right press ungrabbed combine : mouse_select_command_output : kitty_scrollback_nvim --config ksb_builtin_last_visited_cmd_output
 
 ## Extras
+macos_option_as_alt yes 
+
 font_family MonoLisa Variable
 symbol_map U+23FB-U+23FE,U+2665,U+26A1,U+2B58,U+E000-U+F8FF FiraCode Nerd Font