" Author: Łukasz Langa
" Created: Mon Mar 26 23:27:53 2018 -0700
" Requires: Vim Ver7.0+
-" Version: 1.1
+" Version: 1.2
"
" Documentation:
" This plugin formats Python files.
" - initial version
" 1.1:
" - restore cursor/window position after formatting
+" 1.2:
+" - use autoload script
if v:version < 700 || !has('python3')
func! __BLACK_MISSING()
endif
if exists("g:load_black")
- finish
+ finish
endif
let g:load_black = "py1.0"
let g:black_string_normalization = 1
endif
endif
+if !exists("g:black_quiet")
+ let g:black_quiet = 0
+endif
-python3 << EndPython3
-import collections
-import os
-import sys
-import vim
-from distutils.util import strtobool
-
-
-class Flag(collections.namedtuple("FlagBase", "name, cast")):
- @property
- def var_name(self):
- return self.name.replace("-", "_")
-
- @property
- def vim_rc_name(self):
- name = self.var_name
- if name == "line_length":
- name = name.replace("_", "")
- return "g:black_" + name
-
-
-FLAGS = [
- Flag(name="line_length", cast=int),
- Flag(name="fast", cast=strtobool),
- Flag(name="string_normalization", cast=strtobool),
-]
-
-
-def _get_python_binary(exec_prefix):
- try:
- default = vim.eval("g:pymode_python").strip()
- except vim.error:
- default = ""
- if default and os.path.exists(default):
- return default
- if sys.platform[:3] == "win":
- return exec_prefix / 'python.exe'
- return exec_prefix / 'bin' / 'python3'
-
-def _get_pip(venv_path):
- if sys.platform[:3] == "win":
- return venv_path / 'Scripts' / 'pip.exe'
- return venv_path / 'bin' / 'pip'
-
-def _get_virtualenv_site_packages(venv_path, pyver):
- if sys.platform[:3] == "win":
- return venv_path / 'Lib' / 'site-packages'
- return venv_path / 'lib' / f'python{pyver[0]}.{pyver[1]}' / 'site-packages'
-
-def _initialize_black_env(upgrade=False):
- pyver = sys.version_info[:2]
- if pyver < (3, 6):
- print("Sorry, Black requires Python 3.6+ to run.")
- return False
-
- from pathlib import Path
- import subprocess
- import venv
- virtualenv_path = Path(vim.eval("g:black_virtualenv")).expanduser()
- virtualenv_site_packages = str(_get_virtualenv_site_packages(virtualenv_path, pyver))
- first_install = False
- if not virtualenv_path.is_dir():
- print('Please wait, one time setup for Black.')
- _executable = sys.executable
- _base_executable = getattr(sys, "_base_executable", _executable)
- try:
- executable = str(_get_python_binary(Path(sys.exec_prefix)))
- sys.executable = executable
- sys._base_executable = executable
- print(f'Creating a virtualenv in {virtualenv_path}...')
- print('(this path can be customized in .vimrc by setting g:black_virtualenv)')
- venv.create(virtualenv_path, with_pip=True)
- except Exception:
- print('Encountered exception while creating virtualenv (see traceback below).')
- print(f'Removing {virtualenv_path}...')
- import shutil
- shutil.rmtree(virtualenv_path)
- raise
- finally:
- sys.executable = _executable
- sys._base_executable = _base_executable
- first_install = True
- if first_install:
- print('Installing Black with pip...')
- if upgrade:
- print('Upgrading Black with pip...')
- if first_install or upgrade:
- subprocess.run([str(_get_pip(virtualenv_path)), 'install', '-U', 'black'], stdout=subprocess.PIPE)
- print('DONE! You are all set, thanks for waiting ✨ 🍰 ✨')
- if first_install:
- print('Pro-tip: to upgrade Black in the future, use the :BlackUpgrade command and restart Vim.\n')
- if virtualenv_site_packages not in sys.path:
- sys.path.insert(0, virtualenv_site_packages)
- return True
-
-if _initialize_black_env():
- import black
- import time
-
-def Black():
- start = time.time()
- configs = get_configs()
- mode = black.FileMode(
- line_length=configs["line_length"],
- string_normalization=configs["string_normalization"],
- is_pyi=vim.current.buffer.name.endswith('.pyi'),
- )
-
- buffer_str = '\n'.join(vim.current.buffer) + '\n'
- try:
- new_buffer_str = black.format_file_contents(
- buffer_str,
- fast=configs["fast"],
- mode=mode,
- )
- except black.NothingChanged:
- print(f'Already well formatted, good job. (took {time.time() - start:.4f}s)')
- except Exception as exc:
- print(exc)
- else:
- 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 get_configs():
- path_pyproject_toml = black.find_pyproject_toml(vim.eval("fnamemodify(getcwd(), ':t')"))
- if path_pyproject_toml:
- toml_config = black.parse_pyproject_toml(path_pyproject_toml)
- else:
- toml_config = {}
-
- return {
- flag.var_name: flag.cast(toml_config.get(flag.name, vim.eval(flag.vim_rc_name)))
- for flag in FLAGS
- }
-
-
-def BlackUpgrade():
- _initialize_black_env(upgrade=True)
-
-def BlackVersion():
- print(f'Black, version {black.__version__} on Python {sys.version}.')
-
-EndPython3
-command! Black :py3 Black()
-command! BlackUpgrade :py3 BlackUpgrade()
-command! BlackVersion :py3 BlackVersion()
+command! Black :call black#Black()
+command! BlackUpgrade :call black#BlackUpgrade()
+command! BlackVersion :call black#BlackVersion()
projects / etc / vim.git / blobdiff