allow NVIM_PYTHON_UI_DEBUG_EXT=ext_cmdline,ext_tabline for quick debugging

Author: bfredl

neovim_gui/gtk_ui.py

@@ -1,6 +1,7 @@
 """Neovim Gtk+ UI."""
 from __future__ import print_function, division
 import math
+import os
 
 import cairo
 
@@ -95,7 +96,9 @@ def __init__(self, font):
 
     def start(self, bridge):
         """Start the UI event loop."""
-        bridge.attach(80, 24, rgb=True)
+        debug_ext_env = os.environ.get("NVIM_PYTHON_UI_DEBUG_EXT", "")
+        extra_exts = {x:True for x in debug_ext_env.split(",") if x}
+        bridge.attach(80, 24, rgb=True, **extra_exts)
         drawing_area = Gtk.DrawingArea()
         drawing_area.connect('draw', self._gtk_draw)
         window = Gtk.Window()

neovim_gui/ui_bridge.py

@@ -23,10 +23,12 @@ def connect(self, nvim, ui, profile=None, notify=False):
         self._profile = profile
         self._sem = Semaphore(0)
         debug_env = os.environ.get("NVIM_PYTHON_UI_DEBUG", "")
+        debug_ext_env = os.environ.get("NVIM_PYTHON_UI_DEBUG_EXT", "")
+        self.debug_ext = len(debug_ext_env) > 0
         if debug_env == "2":
             self.debug_events = 2
         else:
-            self.debug_events = len(debug_env) > 0
+            self.debug_events = len(debug_env) > 0 or self.debug_ext
         t = Thread(target=self._nvim_event_loop)
         t.daemon = True
         t.start()
@@ -107,7 +109,7 @@ def apply_updates():
                                 print(repr(update), file=sys.stdout)
                             for args in update[1:]:
                                 handler(*args[:nparam])
-                    if self.debug_events == 2:
+                    if self.debug_events == 2 or self.debug_ext:
                         print("<flush>")
                 except Exception:
                     self._error = format_exc()