Centralize definition of file transfer OSC code

kittens/transfer/main.py

@@ -222,8 +222,16 @@ def files_for_send(cli_opts: TransferCLIOptions, args: List[str]) -> Tuple[File,
     return tuple(files)
 
 
+class SendManager:
+
+    def __init__(self, files: Tuple[File, ...]):
+        self.files = files
+
+
 def send_main(cli_opts: TransferCLIOptions, args: List[str]) -> None:
-    pass
+    print('Scanning files…')
+    files = files_for_send(cli_opts, args)
+    print(f'Found {len(files)} files and directories, requesting transfer permission…')
 
 
 def parse_transfer_args(args: List[str]) -> Tuple[TransferCLIOptions, List[str]]:

kittens/tui/handler.py

@@ -5,7 +5,7 @@
 
 from types import TracebackType
 from typing import (
-    Any, Callable, ContextManager, Dict, Optional, Sequence, Type, Union
+    Any, Callable, ContextManager, Dict, Optional, Sequence, Type, Union, TYPE_CHECKING
 )
 
 from kitty.types import ParsedShortcut
@@ -17,6 +17,10 @@ from kitty.typing import (
 from .operations import pending_update
 
 
+if TYPE_CHECKING:
+    from kitty.file_transmission import FileTransmissionCommand
+
+
 class Handler:
 
     image_manager_class: Optional[Type[ImageManagerType]] = None
@@ -118,6 +122,9 @@ class Handler:
     def on_clipboard_response(self, text: str, from_primary: bool = False) -> None:
         pass
 
+    def on_file_transfer_response(self, ftc: 'FileTransmissionCommand') -> None:
+        pass
+
     def on_capability_response(self, name: str, val: str) -> None:
         pass
 

kittens/tui/loop.py

@@ -17,7 +17,8 @@ from typing import Any, Callable, Dict, Generator, List, NamedTuple, Optional
 
 from kitty.constants import is_macos
 from kitty.fast_data_types import (
-    close_tty, normal_tty, open_tty, parse_input_from_terminal, raw_tty
+    FILE_TRANSFER_CODE, close_tty, normal_tty, open_tty,
+    parse_input_from_terminal, raw_tty
 )
 from kitty.key_encoding import (
     ALT, CTRL, PRESS, RELEASE, REPEAT, SHIFT, backspace_key, decode_key_event,
@@ -308,15 +309,18 @@ class Loop:
         pass
 
     def _on_osc(self, osc: str) -> None:
-        m = re.match(r'(\d+);', osc)
+        parts = osc.split(';', 1)
-        if m is not None:
+        if len(parts) == 2 and parts[0].isdigit():
-            code = int(m.group(1))
+            code = int(parts[0])
-            rest = osc[m.end():]
+            rest = parts[1]
             if code == 52:
-                where, rest = rest.partition(';')[::2]
+                where, rest = rest.split(';', 1)
                 from_primary = 'p' in where
                 from base64 import standard_b64decode
                 self.handler.on_clipboard_response(standard_b64decode(rest).decode('utf-8'), from_primary)
+            elif code == FILE_TRANSFER_CODE:
+                from kitty.file_transmission import FileTransmissionCommand
+                self.handler.on_file_transfer_response(FileTransmissionCommand.deserialize(rest))
 
     def _on_apc(self, apc: str) -> None:
         if apc.startswith('G'):

kitty/control-codes.h

@@ -238,3 +238,6 @@
 
 // Change cursor shape/blink
 #define DECSCUSR 'q'
+
+// File transfer OSC number
+# define FILE_TRANSFER_CODE 5113

kitty/data-types.c

@@ -316,6 +316,7 @@ PyInit_fast_data_types(void) {
     PyModule_AddIntMacro(m, DCS);
     PyModule_AddIntMacro(m, APC);
     PyModule_AddIntMacro(m, OSC);
+    PyModule_AddIntMacro(m, FILE_TRANSFER_CODE);
 
     return m;
 }

kitty/fast_data_types.pyi

@@ -256,6 +256,7 @@ GRAPHICS_PROGRAM: int
 MARK: int
 MARK_MASK: int
 OSC: int
+FILE_TRANSFER_CODE: int
 REVERSE: int
 SCROLL_FULL: int
 SCROLL_LINE: int

kitty/file_transmission.py

@@ -16,7 +16,7 @@ from gettext import gettext as _
 from time import monotonic
 from typing import IO, Any, Callable, Deque, Dict, List, Optional, Tuple, Union
 
-from kitty.fast_data_types import OSC, add_timer, get_boss
+from kitty.fast_data_types import FILE_TRANSFER_CODE, OSC, add_timer, get_boss
 
 from .utils import log_error, sanitize_control_codes
 
@@ -485,6 +485,7 @@ class FileTransmission:
         boss = get_boss()
         window = boss.window_id_map.get(self.window_id)
         if window is not None:
+            payload = f'{FILE_TRANSFER_CODE};{payload}'
             queued = window.screen.send_escape_code_to_child(OSC, payload)
             if not queued:
                 if appendleft:

kitty/parser.c

@@ -445,7 +445,7 @@ dispatch_osc(Screen *screen, PyObject DUMP_UNUSED *dump_callback) {
             START_DISPATCH
             DISPATCH_OSC(shell_prompt_marking);
             END_DISPATCH
-        case 5113:
+        case FILE_TRANSFER_CODE:
             START_DISPATCH
             DISPATCH_OSC(file_transmission);
             END_DISPATCH