Output total transfer size when confirming

kittens/transfer/main.py

@@ -26,6 +26,7 @@ from kitty.typing import KeyEventType
 from ..tui.handler import Handler
 from ..tui.loop import Loop, debug
 from ..tui.operations import styled
+from ..tui.utils import human_size
 
 _cwd = _home = ''
 debug
@@ -304,6 +305,7 @@ class SendManager:
         self.current_chunk_uncompressed_sz: Optional[int] = None
         self.prefix = f'\x1b]{FILE_TRANSFER_CODE};id={self.request_id};'
         self.suffix = '\x1b\\'
+        self.total_size_of_all_files = sum(df.file_size for df in self.files if df.file_size >= 0)
 
     @property
     def active_file(self) -> Optional[File]:
@@ -448,6 +450,8 @@ class Send(Handler):
             self.print(df.local_path, '→', end=' ')
             self.cmd.styled(df.remote_final_path, fg='red' if df.remote_initial_size > -1 else None)
             self.print()
+        self.print(f'Transferring {len(self.manager.files)} files of total size: {human_size(self.manager.total_size_of_all_files)}')
+        self.print()
         self.print_continue_msg()
 
     def print_continue_msg(self) -> None:

kittens/tui/utils.py

@@ -27,3 +27,18 @@ def get_key_press(allowed: str, default: str) -> str:
         finally:
             print(set_cursor_visible(True), end='', flush=True)
     return response
+
+
+def human_size(size: int, sep: str = ' ') -> str:
+    """ Convert a size in bytes into a human readable form """
+    divisor, suffix = 1, "B"
+    for i, candidate in enumerate(('B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB')):
+        if size < (1 << ((i + 1) * 10)):
+            divisor, suffix = (1 << (i * 10)), candidate
+            break
+    ans = str(size / divisor)
+    if ans.find(".") > -1:
+        ans = ans[:ans.find(".")+2]
+    if ans.endswith('.0'):
+        ans = ans[:-2]
+    return ans + sep + suffix