]> git.madduck.net Git - etc/vim.git/blob - plugin/black.vim

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

df033e6811c6480dcf9cb09e00553c7d90fd5e6e
[etc/vim.git] / plugin / black.vim
1 " black.vim
2 " Author: Łukasz Langa
3 " Created: Mon Mar 26 23:27:53 2018 -0700
4 " Requires: Vim Ver7.0+
5 " Version:  1.1
6 "
7 " Documentation:
8 "   This plugin formats Python files.
9 "
10 " History:
11 "  1.0:
12 "    - initial version
13 "  1.1:
14 "    - restore cursor/window position after formatting
15
16 if v:version < 700 || !has('python3')
17     echo "This script requires vim7.0+ with Python 3.6 support."
18     finish
19 endif
20
21 if exists("g:load_black")
22    finish
23 endif
24
25 let g:load_black = "py1.0"
26 if !exists("g:black_virtualenv")
27   let g:black_virtualenv = "~/.vim/black"
28 endif
29 if !exists("g:black_fast")
30   let g:black_fast = 0
31 endif
32 if !exists("g:black_linelength")
33   let g:black_linelength = 88
34 endif
35 if !exists("g:black_skip_string_normalization")
36   let g:black_skip_string_normalization = 0
37 endif
38
39 python3 << endpython3
40 import sys
41 import vim
42
43 def _get_python_binary(exec_prefix):
44   if sys.platform[:3] == "win":
45     return exec_prefix / 'python.exe'
46   return exec_prefix / 'bin' / 'python3'
47
48 def _get_pip(venv_path):
49   if sys.platform[:3] == "win":
50     return venv_path / 'Scripts' / 'pip.exe'
51   return venv_path / 'bin' / 'pip'
52
53 def _get_virtualenv_site_packages(venv_path, pyver):
54   if sys.platform[:3] == "win":
55     return venv_path / 'Lib' / 'site-packages'
56   return venv_path / 'lib' / f'python{pyver[0]}.{pyver[1]}' / 'site-packages'
57
58 def _initialize_black_env(upgrade=False):
59   pyver = sys.version_info[:2]
60   if pyver < (3, 6):
61     print("Sorry, Black requires Python 3.6+ to run.")
62     return False
63
64   from pathlib import Path
65   import subprocess
66   import venv
67   virtualenv_path = Path(vim.eval("g:black_virtualenv")).expanduser()
68   virtualenv_site_packages = str(_get_virtualenv_site_packages(virtualenv_path, pyver))
69   first_install = False
70   if not virtualenv_path.is_dir():
71     print('Please wait, one time setup for Black.')
72     _executable = sys.executable
73     try:
74       sys.executable = str(_get_python_binary(Path(sys.exec_prefix)))
75       print(f'Creating a virtualenv in {virtualenv_path}...')
76       print('(this path can be customized in .vimrc by setting g:black_virtualenv)')
77       venv.create(virtualenv_path, with_pip=True)
78     finally:
79       sys.executable = _executable
80     first_install = True
81   if first_install:
82     print('Installing Black with pip...')
83   if upgrade:
84     print('Upgrading Black with pip...')
85   if first_install or upgrade:
86     subprocess.run([str(_get_pip(virtualenv_path)), 'install', '-U', 'black'], stdout=subprocess.PIPE)
87     print('DONE! You are all set, thanks for waiting ✨ 🍰 ✨')
88   if first_install:
89     print('Pro-tip: to upgrade Black in the future, use the :BlackUpgrade command and restart Vim.\n')
90   if sys.path[0] != virtualenv_site_packages:
91     sys.path.insert(0, virtualenv_site_packages)
92   return True
93
94 if _initialize_black_env():
95   import black
96   import time
97
98 def Black():
99   start = time.time()
100   fast = bool(int(vim.eval("g:black_fast")))
101   line_length = int(vim.eval("g:black_linelength"))
102   mode = black.FileMode.AUTO_DETECT
103   if bool(int(vim.eval("g:black_skip_string_normalization"))):
104     mode |= black.FileMode.NO_STRING_NORMALIZATION
105   buffer_str = '\n'.join(vim.current.buffer) + '\n'
106   try:
107     new_buffer_str = black.format_file_contents(buffer_str, line_length=line_length, fast=fast, mode=mode)
108   except black.NothingChanged:
109     print(f'Already well formatted, good job. (took {time.time() - start:.4f}s)')
110   except Exception as exc:
111     print(exc)
112   else:
113     cursor = vim.current.window.cursor
114     vim.current.buffer[:] = new_buffer_str.split('\n')[:-1]
115     vim.current.window.cursor = cursor
116     print(f'Reformatted in {time.time() - start:.4f}s.')
117
118 def BlackUpgrade():
119   _initialize_black_env(upgrade=True)
120
121 def BlackVersion():
122   print(f'Black, version {black.__version__} on Python {sys.version}.')
123
124 endpython3
125
126 command! Black :py3 Black()
127 command! BlackUpgrade :py3 BlackUpgrade()
128 command! BlackVersion :py3 BlackVersion()
129
130 nmap ,= :Black<CR>
131 vmap ,= :Black<CR>