Update README.md to include appropriate command to install Vim with Python 3 on macOS...

[etc/vim.git] / plugin / black.vim

diff --git a/plugin/black.vim b/plugin/black.vim
index 9def61a568c36475776a52da1849263821714708..b174e5984526d883956757d5e2535a3bd17305f0 100644 (file)
--- a/plugin/black.vim
+++ b/plugin/black.vim
@@ -14,7 +14,7 @@
 "    - restore cursor/window position after formatting
 
 if v:version < 700 || !has('python3')
-    echo "This script requires vim7.0+ with Python 3.6 support."
+    echo "The black.vim plugin requires vim7.0+ with Python 3.6 support."
     finish
 endif
 
@@ -114,29 +114,7 @@ def Black():
     string_normalization=not bool(int(vim.eval("g:black_skip_string_normalization"))),
     is_pyi=vim.current.buffer.name.endswith('.pyi'),
   )
-  (cursor_line, cursor_column) = vim.current.window.cursor
-  cb = vim.current.buffer[:]
-  cb_bc = cb[0:cursor_line]
-  # Format all code before the cursor.
-  # Detect unclosed blocks, close them with pass.
-  last_line = cb_bc[-1]
-  if last_line.rstrip().endswith(":"):
-      cb_bc[-1] = last_line + " pass"
-  # Determine old:new cursor location mapping
-  buffer_str_before = '\n'.join(cb_bc)+'\n'
-  try:
-    new_buffer_str_before = black.format_file_contents(buffer_str_before, fast=fast, mode=mode)
-    new_cb = new_buffer_str_before.split('\n')[:-1]
-    new_cursor_line = len(new_cb)
-    new_cursor = (new_cursor_line, cursor_column)
-  except black.NothingChanged:
-    new_cursor_line = cursor_line
-    new_cursor = (new_cursor_line, cursor_column)
-  except Exception as exc:
-    print(exc)
-  # Now we know where the cursor should be
-  # when we format the entire buffer. Do it:
-  buffer_str = '\n'.join(cb) + '\n'
+  buffer_str = '\n'.join(vim.current.buffer) + '\n'
   try:
     new_buffer_str = black.format_file_contents(buffer_str, fast=fast, mode=mode)
   except black.NothingChanged:
@@ -144,14 +122,20 @@ def Black():
   except Exception as exc:
     print(exc)
   else:
-    # Replace the buffer
-    new_cb = new_buffer_str.split('\n')[:-1]
-    vim.current.buffer[:] = new_cb
-    # Restore the cursor to its rightful place
-    try:
-      vim.current.window.cursor = new_cursor
-    except vim.error:
-      vim.current.window.cursor = (len(vim.current.buffer), 0)
+    current_buffer = vim.current.window.buffer
+    cursors = []
+    for i, tabpage in enumerate(vim.tabpages):
+      if tabpage.valid:
+        for j, window in enumerate(tabpage.windows):
+          if window.valid and window.buffer == current_buffer:
+            cursors.append((i, j, window.cursor))
+    vim.current.buffer[:] = new_buffer_str.split('\n')[:-1]
+    for i, j, cursor in cursors:
+      window = vim.tabpages[i].windows[j]
+      try:
+        window.cursor = cursor
+      except vim.error:
+        window.cursor = (len(window.buffer), 0)
     print(f'Reformatted in {time.time() - start:.4f}s.')
 
 def BlackUpgrade():