mirror of
https://github.com/amix/vimrc
synced 2024-12-21 09:23:06 +00:00
205 lines
6.3 KiB
Markdown
205 lines
6.3 KiB
Markdown
vim-flake8
|
|
==========
|
|
`vim-flake8` is a Vim plugin that runs the currently open file through Flake8,
|
|
a static syntax and style checker for Python source code. It supersedes both
|
|
[vim-pyflakes](https://github.com/nvie/vim-pyflakes) and
|
|
[vim-pep8](https://github.com/nvie/vim-pep8).
|
|
|
|
[Flake8](https://pypi.python.org/pypi/flake8/) is a wrapper around PyFlakes
|
|
(static syntax checker), PEP8 (style checker) and Ned's MacCabe script
|
|
(complexity checker).
|
|
|
|
|
|
Installation
|
|
------------
|
|
|
|
Make sure you've installed the
|
|
[flake8](https://pypi.python.org/pypi/flake8/) package.
|
|
|
|
If you use vim >= 8, install this plugin with:
|
|
```
|
|
mkdir -p ~/.vim/pack/flake8/start/
|
|
cd ~/.vim/pack/flake8/start/
|
|
git clone https://github.com/nvie/vim-flake8.git
|
|
```
|
|
|
|
Otherwise, install [vim-pathogen](https://github.com/tpope/vim-pathogen)
|
|
if you're not using it already. Then, simply put the
|
|
contents of this repository in your `~/.vim/bundle` directory.
|
|
|
|
Usage
|
|
-----
|
|
1. Open a Python file
|
|
2. Press `<F7>` to run `flake8` on it
|
|
|
|
It shows the errors inside a quickfix window, which will allow your to quickly
|
|
jump to the error locations by simply pressing [Enter].
|
|
|
|
If any of `g:flake8_show_in_gutter` or `g:flake8_show_in_file` are set to `1`, call:
|
|
|
|
call flake8#Flake8UnplaceMarkers()
|
|
|
|
To remove all markers. No default mapping is provided.
|
|
|
|
Customization
|
|
-------------
|
|
If you don't want to use the `<F7>` key for flake8-checking, simply remap it to
|
|
another key. It autodetects whether it has been remapped and won't register
|
|
the `<F7>` key if so. For example, to remap it to `<F3>` instead, use:
|
|
|
|
autocmd FileType python map <buffer> <F3> :call flake8#Flake8()<CR>
|
|
|
|
Since the `autocmd` order is not specified in Vim, the previous
|
|
recommendation is sometimes not sufficient to "unmap" `<F7>`. In such a
|
|
case, being more explicit about it should help (see `:h no_mail_maps`):
|
|
|
|
let g:no_flake8_maps = 1
|
|
|
|
For flake8 configuration options please consult the following page:
|
|
|
|
http://flake8.pycqa.org/en/latest/user/configuration.html
|
|
|
|
To customize the location of your flake8 binary, set `g:flake8_cmd`:
|
|
|
|
let g:flake8_cmd="/opt/strangebin/flake8000"
|
|
|
|
To customize the location of quick fix window, set `g:flake8_quickfix_location`:
|
|
|
|
let g:flake8_quickfix_location="topleft"
|
|
|
|
To customize the height of quick fix window, set `g:flake8_quickfix_height`:
|
|
|
|
let g:flake8_quickfix_height=7
|
|
|
|
To customize whether the quickfix window opens, set `g:flake8_show_quickfix`:
|
|
|
|
let g:flake8_show_quickfix=0 " don't show
|
|
let g:flake8_show_quickfix=1 " show (default)
|
|
|
|
To customize whether the show signs in the gutter, set `g:flake8_show_in_gutter`:
|
|
|
|
let g:flake8_show_in_gutter=0 " don't show (default)
|
|
let g:flake8_show_in_gutter=1 " show
|
|
|
|
To customize whether the show marks in the file, set `g:flake8_show_in_file`:
|
|
|
|
let g:flake8_show_in_file=0 " don't show (default)
|
|
let g:flake8_show_in_file=1 " show
|
|
|
|
To customize the number of marks to show, set `g:flake8_max_markers`:
|
|
|
|
let g:flake8_max_markers=500 " (default)
|
|
|
|
To customize the gutter markers, set any of `flake8_error_marker`, `flake8_warning_marker`,
|
|
`flake8_pyflake_marker`, `flake8_complexity_marker`, `flake8_naming_marker`. Setting one to
|
|
the empty string disables it. Ex.:
|
|
|
|
let g:flake8_error_marker='EE' " set error marker to 'EE'
|
|
let g:flake8_warning_marker='WW' " set warning marker to 'WW'
|
|
let g:flake8_pyflake_marker='' " disable PyFlakes warnings
|
|
let g:flake8_complexity_marker='' " disable McCabe complexity warnings
|
|
let g:flake8_naming_marker='' " disable naming warnings
|
|
|
|
To customize the colors used for markers, define the highlight groups, `Flake8_Error`,
|
|
`Flake8_Warning`, `Flake8_PyFlake`, `Flake8_Complexity`, `Flake8_Naming`:
|
|
|
|
" to use colors defined in the colorscheme
|
|
highlight link Flake8_Error Error
|
|
highlight link Flake8_Warning WarningMsg
|
|
highlight link Flake8_Complexity WarningMsg
|
|
highlight link Flake8_Naming WarningMsg
|
|
highlight link Flake8_PyFlake WarningMsg
|
|
|
|
To show the error message of the current line in the ruler, call `flake8#ShowError()`:
|
|
|
|
" add binding to call the function
|
|
nnoremap <C-K> :call flake8#Flake8ShowError()<cr>
|
|
|
|
|
|
Tips
|
|
----
|
|
A tip might be to run the Flake8 check every time you write a Python file, to
|
|
enable this, add the following line to your `.vimrc` file (thanks
|
|
[Godefroid](https://github.com/gotcha)!):
|
|
|
|
autocmd BufWritePost *.py call flake8#Flake8()
|
|
|
|
This plugin goes well together with the following plugin:
|
|
|
|
- [PyUnit](https://github.com/nvie/vim-pyunit) (unit test helper under `<F8>`
|
|
and `<F9>`)
|
|
|
|
|
|
Max line lengths
|
|
----------------
|
|
|
|
One particular customization a lot of people like to make is relaxing the
|
|
maximum line length default. This is a config setting that should be set in
|
|
flake8 itself. (vim-flake8 "just" invokes it and deals with showing the output
|
|
in Vim's quickfix window.)
|
|
|
|
To do so, put the following into a `.flake8` file at the root of your project:
|
|
|
|
[flake8]
|
|
max-line-length = 120
|
|
|
|
|
|
History
|
|
-------
|
|
1.6: Deprecated configuring flake8 options through Vim settings. Instead,
|
|
advise users to use a `.flake8` config file in the root of your project.
|
|
|
|
- Decprecated options:
|
|
- `g:flake8_builtins`
|
|
- `g:flake8_ignore`
|
|
- `g:flake8_max_line_length`
|
|
- `g:flake8_max_complexity`
|
|
|
|
- New options:
|
|
- `g:flake8_quickfix_height`
|
|
|
|
1.5: Added markers and the option to don't show the quickfix window, also split
|
|
functions into a autoload file. Added:
|
|
|
|
- Options:
|
|
- `g:flake8_show_quickfix`
|
|
- `g:flake8_show_in_gutter`
|
|
- `g:flake8_show_in_file`
|
|
- `g:flake8_max_markers`
|
|
- `flake8_error_marker`
|
|
- `flake8_warning_marker`
|
|
- `flake8_pyflake_marker`
|
|
- `flake8_complexity_marker`
|
|
- `flake8_naming_marker`
|
|
- Functions:
|
|
- `flake8#Flake8UnplaceMarkers()`
|
|
- `flake8#Flake8()`
|
|
- Highlighting:
|
|
- `Flake8_Error`
|
|
- `Flake8_Warning`
|
|
- `Flake8_Complexity`
|
|
- `Flake8_Naming`
|
|
- `Flake8_PyFlake`
|
|
|
|
1.4: Suppress output to stdout.
|
|
|
|
1.3: Added the following options:
|
|
|
|
- `g:flake8_builtins="_,apply"`
|
|
- `g:flake8_max_complexity=10`
|
|
|
|
1.2: Added the following options:
|
|
|
|
- `g:flake8_cmd="/opt/strangebin/flake8000"`
|
|
- `g:flake8_max_line_length=120`
|
|
- `g:flake8_ignore="E501,W293"`
|
|
|
|
1.1: Added `g:flake8_ignore` option.
|
|
|
|
1.0: Initial version.
|
|
|
|
|
|
License
|
|
-------
|
|
|
|
Liberally licensed under BSD terms.
|