feat: add development mode

Set g:pf_dev_server_console to a command used to run something in a new
console (e.g. konsole -e). This is used to view what the server Vim is doing
when debugging or adding new features.

python/client.py

@@ -33,17 +33,30 @@ def open(self):
             os.path.join(os.path.dirname(__file__), "..", "serverrc.vim")
         )
         # Launch the server as described above
-        self.server_process = subprocess.Popen(
-            (
-                "vim",
-                "--not-a-term",
-                "--cmd",
-                f"let g:pf_server_communiation_file='{self.file_path}'",
-                "-u",
-                vimrc_path,
-            ),
-            stdout=subprocess.DEVNULL,
-        )
+        if vim.vars.get("pf_dev_server_console"):
+            self.server_process = subprocess.Popen(
+                vim.eval("g:pf_dev_server_console").split(" ") + [
+                    "vim",
+                    "--cmd",
+                    f"let g:pf_server_communiation_file='{self.file_path}'",
+                    "--cmd",
+                    "let g:pf_dev_server_console=1",
+                    "-u",
+                    vimrc_path,
+                ],
+            )
+        else:
+            self.server_process = subprocess.Popen(
+                (
+                    "vim",
+                    "--not-a-term",
+                    "--cmd",
+                    f"let g:pf_server_communiation_file='{self.file_path}'",
+                    "-u",
+                    vimrc_path,
+                ),
+                stdout=subprocess.DEVNULL,
+            )
 
         # poll_responses will see this is None and look for the ability to connect
         # instead of received messages

python/server.py

@@ -55,6 +55,7 @@ def message_loop(self):
                 if not self.client_connection.poll():
                     self.do_action(data)
             except:
+                self._dev_redraw()
                 # Send any unexpected exceptions back to the client
                 # to be displayed for debugging purposes
                 self.client_connection.send(("ERROR", traceback.format_exc()))
@@ -72,6 +73,7 @@ def do_action(self, data):
         vim.options["columns"] = int(data["size"][0])
         vim.options["lines"] = vim.options["cmdheight"] + int(data["size"][1])
 
+        self._dev_redraw()
         self.pathfind()
 
     def pathfind(self):
@@ -85,6 +87,11 @@ def pathfind(self):
         if not (motions is None or self.client_connection.poll()):
             self.client_connection.send(("RESULT", motions))
 
+    def _dev_redraw(self):
+        """Call redraw if development mode is set."""
+        if vim.vars.get("pf_dev_server_console"):
+            vim.command("redraw")
+
 
 server = Server(vim.vars["pf_server_communiation_file"])
 server.run()