Fix an issue where extra empty lines are added. (#3470)

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

diff --git a/autoload/black.vim b/autoload/black.vim
index 9ff5c2341fe71d7920aa8a35fbbdcb9496a40e66..5aec8725bd054ee3749819f8861932105bd3f32a 100644 (file)
--- a/autoload/black.vim
+++ b/autoload/black.vim
@@ -3,8 +3,13 @@ import collections
 import os
 import sys
 import vim
-from distutils.util import strtobool
 
+def strtobool(text):
+  if text.lower() in ['y', 'yes', 't', 'true', 'on', '1']:
+    return True
+  if text.lower() in ['n', 'no', 'f', 'false', 'off', '0']:
+    return False
+  raise ValueError(f"{text} is not convertable to boolean")
 
 class Flag(collections.namedtuple("FlagBase", "name, cast")):
   @property
@@ -24,6 +29,8 @@ FLAGS = [
   Flag(name="fast", cast=strtobool),
   Flag(name="skip_string_normalization", cast=strtobool),
   Flag(name="quiet", cast=strtobool),
+  Flag(name="skip_magic_trailing_comma", cast=strtobool),
+  Flag(name="preview", cast=strtobool),
 ]
 
 
@@ -49,9 +56,19 @@ def _get_virtualenv_site_packages(venv_path, pyver):
   return venv_path / 'lib' / f'python{pyver[0]}.{pyver[1]}' / 'site-packages'
 
 def _initialize_black_env(upgrade=False):
+  if vim.eval("g:black_use_virtualenv ? 'true' : 'false'") == "false":
+    if upgrade:
+      print("Upgrade disabled due to g:black_use_virtualenv being disabled.")
+      print("Either use your system package manager (or pip) to upgrade black separately,")
+      print("or modify your vimrc to have 'let g:black_use_virtualenv = 1'.")
+      return False
+    else:
+      # Nothing needed to be done.
+      return True
+
   pyver = sys.version_info[:3]
-  if pyver < (3, 6, 2):
-    print("Sorry, Black requires Python 3.6.2+ to run.")
+  if pyver < (3, 7):
+    print("Sorry, Black requires Python 3.7+ to run.")
     return False
 
   from pathlib import Path
@@ -138,6 +155,8 @@ def Black(**kwargs):
     line_length=configs["line_length"],
     string_normalization=not configs["skip_string_normalization"],
     is_pyi=vim.current.buffer.name.endswith('.pyi'),
+    magic_trailing_comma=not configs["skip_magic_trailing_comma"],
+    preview=configs["preview"],
     **black_kwargs,
   )
   quiet = configs["quiet"]
@@ -151,9 +170,9 @@ def Black(**kwargs):
     )
   except black.NothingChanged:
     if not quiet:
-      print(f'Already well formatted, good job. (took {time.time() - start:.4f}s)')
+      print(f'Black: already well formatted, good job. (took {time.time() - start:.4f}s)')
   except Exception as exc:
-    print(exc)
+    print(f'Black: {exc}')
   else:
     current_buffer = vim.current.window.buffer
     cursors = []
@@ -170,7 +189,7 @@ def Black(**kwargs):
       except vim.error:
         window.cursor = (len(window.buffer), 0)
     if not quiet:
-      print(f'Reformatted in {time.time() - start:.4f}s.')
+      print(f'Black: reformatted in {time.time() - start:.4f}s.')
 
 def get_configs():
   filename = vim.eval("@%")