Option to copy to clipboard on mouse select

CHANGELOG.rst

@@ -14,6 +14,8 @@ version 0.7.0 [future]
 
 - Sessions: Allow setting titles and working directories for individual windows 
 
+- Option to copy to clipboard on mouse select
+
 - Fix incorrect reporting of mouse move events when using the SGR protocol
 
 - Make alt+backspace delete the previous word

kitty/boss.py

@@ -12,8 +12,9 @@ from .constants import appname, set_boss, wakeup
 from .fast_data_types import (
     ChildMonitor, create_os_window, current_os_window, destroy_global_data,
     destroy_sprite_map, get_clipboard_string, glfw_post_empty_event,
-    layout_sprite_map, mark_os_window_for_close, set_dpi_from_os_window,
-    show_window, toggle_fullscreen, viewport_for_window
+    layout_sprite_map, mark_os_window_for_close, set_clipboard_string,
+    set_dpi_from_os_window, show_window, toggle_fullscreen,
+    viewport_for_window
 )
 from .fonts.render import prerender, resize_fonts, set_font_family
 from .keys import get_shortcut
@@ -415,6 +416,8 @@ class Boss:
             text = w.text_for_selection()
             if text:
                 set_primary_selection(text)
+                if self.opts.copy_on_select:
+                    set_clipboard_string(text)
 
     def goto_tab(self, tab_num):
         tm = self.active_tab_manager

kitty/config.py

@@ -281,6 +281,7 @@ type_map = {
     'inactive_text_alpha': unit_float,
     'url_style': url_style,
     'prefer_color_emoji': to_bool,
+    'copy_on_select': to_bool,
 }
 
 for name in (

kitty/kitty.conf

@@ -369,6 +369,13 @@ map ctrl+shift+f11      toggle_fullscreen
 
 # OS specific tweaks
 
+# Copy to clipboard on select. With this enabled, simply selecting text with
+# the mouse will cause the text to be copied to clipboard. Useful on platforms
+# such as macOS/Wayland that do not have the concept of primary selections. Note
+# that this is a security risk, as all programs, including websites open in your
+# browser can read the contents of the clipboard.
+copy_on_select no
+
 # Hide the kitty window's title bar on macOS.
 macos_hide_titlebar no