]> git.madduck.net Git - etc/vim.git/blob - autoload/flake8.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:

Merge pull request #74 from UbiCastTeam/master
[etc/vim.git] / autoload / flake8.vim
1 "
2 " Python filetype plugin for running flake8
3 " Language:     Python (ft=python)
4 " Maintainer:   Vincent Driessen <vincent@3rdcloud.com>
5 " Version:      Vim 7 (may work with lower Vim versions, but not tested)
6 " URL:          http://github.com/nvie/vim-flake8
7
8 let s:save_cpo = &cpo
9 set cpo&vim
10
11 "" ** external ** {{{
12
13 function! flake8#Flake8()
14     call s:Flake8()
15     call s:Warnings()
16 endfunction
17
18 function! flake8#Flake8UnplaceMarkers()
19     call s:UnplaceMarkers()
20     call s:Warnings()
21 endfunction
22
23 "" }}}
24
25 "" ** internal ** {{{
26
27 "" warnings 
28
29 let s:displayed_warnings = 0
30 function s:Warnings()
31   if !s:displayed_warnings
32     let l:show_website_url = 0
33
34     let l:msg = "has been deprecated in favour of flake8 config files"
35     for setting_name in ['g:flake8_ignore', 'g:flake8_builtins', 'g:flake8_max_line_length', 'g:flake8_max_complexity']
36       if exists(setting_name)
37         echohl WarningMsg | echom setting_name l:msg | echohl None
38         let l:show_website_url = 1
39       endif
40     endfor
41
42     if l:show_website_url
43       let l:url = "http://flake8.readthedocs.org/en/latest/config.html"
44       echohl WarningMsg | echom l:url | echohl None
45     endif
46     let s:displayed_warnings = 1
47   endif
48 endfunction
49
50 "" config
51
52 function! s:DeclareOption(name, globalPrefix, default)  " {{{
53     if !exists('g:'.a:name)
54         if a:default != ''
55             execute 'let s:'.a:name.'='.a:default
56         else
57             execute 'let s:'.a:name.'=""'
58         endif
59     else
60         execute 'let l:global="g:".a:name'
61         if l:global != ''
62             execute 'let s:'.a:name.'="'.a:globalPrefix.'".g:'.a:name
63         else
64             execute 'let s:'.a:name.'=""'
65         endif
66     endif
67 endfunction  " }}}
68
69 function! s:Setup()  " {{{
70     "" read options
71
72     " flake8 command
73     call s:DeclareOption('flake8_cmd', '', '"flake8"')
74     " quickfix
75     call s:DeclareOption('flake8_quickfix_location', '', '"belowright"')
76     call s:DeclareOption('flake8_quickfix_height', '', 5)
77     call s:DeclareOption('flake8_show_quickfix', '', 1)
78     " markers to show
79     call s:DeclareOption('flake8_show_in_gutter', '',   0)
80     call s:DeclareOption('flake8_show_in_file', '',   0)
81     call s:DeclareOption('flake8_max_markers', '', 500)
82     " marker signs
83     call s:DeclareOption('flake8_error_marker', '', '"E>"')
84     call s:DeclareOption('flake8_warning_marker', '', '"W>"')
85     call s:DeclareOption('flake8_pyflake_marker', '', '"F>"')
86     call s:DeclareOption('flake8_complexity_marker', '', '"C>"')
87     call s:DeclareOption('flake8_naming_marker', '', '"N>"')
88
89     "" setup markerdata
90
91     if !exists('s:markerdata')
92         let s:markerdata = {}
93         let s:markerdata['E'] = {'name': 'Flake8_Error'}
94         let s:markerdata['W'] = {'name': 'Flake8_Warning'}
95         let s:markerdata['F'] = {'name': 'Flake8_PyFlake'}
96         let s:markerdata['C'] = {'name': 'Flake8_Complexity'}
97         let s:markerdata['N'] = {'name': 'Flake8_Nameing'}
98     endif
99     let s:markerdata['E'].marker = s:flake8_error_marker
100     let s:markerdata['W'].marker = s:flake8_warning_marker
101     let s:markerdata['F'].marker = s:flake8_pyflake_marker
102     let s:markerdata['C'].marker = s:flake8_complexity_marker
103     let s:markerdata['N'].marker = s:flake8_naming_marker
104 endfunction  " }}}
105
106 "" do flake8
107
108 function! s:Flake8()  " {{{
109     " read config
110     call s:Setup()
111
112     let l:executable = split(s:flake8_cmd)[0]
113
114     if !executable(l:executable)
115         echoerr "File " . l:executable . " not found. Please install it first."
116         return
117     endif
118
119     " clear old
120     call s:UnplaceMarkers()
121     let s:matchids = []
122     let s:signids  = []
123
124     " store old grep settings (to restore later)
125     let l:old_gfm=&grepformat
126     let l:old_gp=&grepprg
127     let l:old_shellpipe=&shellpipe
128     let l:old_t_ti=&t_ti
129     let l:old_t_te=&t_te
130
131     " write any changes before continuing
132     if &readonly == 0
133         update
134     endif
135
136     set lazyredraw   " delay redrawing
137
138     " prevent terminal from blinking
139     set shellpipe=>
140     set t_ti=
141     set t_te=
142
143     " perform the grep itself
144     let &grepformat="%f:%l:%c: %m\,%f:%l: %m"
145     let &grepprg=s:flake8_cmd
146     silent! grep! "%"
147     " close any existing cwindows,
148     " placed after 'grep' in case quickfix is open on autocmd QuickFixCmdPost
149     cclose
150
151     " restore grep settings
152     let &grepformat=l:old_gfm
153     let &grepprg=l:old_gp
154     let &shellpipe=l:old_shellpipe
155     let &t_ti=l:old_t_ti
156     let &t_te=l:old_t_te
157
158     " process results
159     let l:results=getqflist()
160     let l:has_results=results != []
161     if l:has_results
162         " markers
163         if !s:flake8_show_in_gutter == 0 || !s:flake8_show_in_file == 0
164             call s:PlaceMarkers(l:results)
165         endif
166         " quickfix
167         if !s:flake8_show_quickfix == 0
168             " open cwindow
169             execute s:flake8_quickfix_location." copen".s:flake8_quickfix_height
170             setlocal wrap
171             nnoremap <buffer> <silent> c :cclose<CR>
172             nnoremap <buffer> <silent> q :cclose<CR>
173         endif
174     endif
175
176     set nolazyredraw
177     redraw!
178
179     " Show status
180     if l:has_results == 0
181         echon "Flake8 check OK"
182     else
183         echon "Flake8 found issues"
184     endif
185 endfunction  " }}}
186
187 "" markers
188
189 function! s:PlaceMarkers(results)  " {{{
190     " in gutter?
191     if !s:flake8_show_in_gutter == 0
192         " define signs
193         for val in values(s:markerdata)
194             if val.marker != ''
195                 execute "sign define ".val.name." text=".val.marker." texthl=".val.name
196             endif
197         endfor
198     endif
199
200     " place
201     let l:index0 = 100
202     let l:index  = l:index0
203     for result in a:results
204         if l:index >= (s:flake8_max_markers+l:index0)
205             break
206         endif
207         let l:type = strpart(result.text, 0, 1)
208         if has_key(s:markerdata, l:type) && s:markerdata[l:type].marker != ''
209             " file markers
210             if !s:flake8_show_in_file == 0
211                 if !has_key(s:markerdata[l:type], 'matchstr')
212                     let s:markerdata[l:type].matchstr = '\%('
213                 else
214                     let s:markerdata[l:type].matchstr .= '\|'
215                 endif
216                 let s:markerdata[l:type].matchstr .= '\%'.result.lnum.'l\%'.result.col.'c'
217             endif
218             " gutter markers
219             if !s:flake8_show_in_gutter == 0
220                 execute ":sign place ".index." name=".s:markerdata[l:type].name
221                             \ . " line=".result.lnum." file=".expand("%:p")
222                 let s:signids += [l:index]
223             endif
224             let l:index += 1
225         endif
226     endfor
227
228     " in file?
229     if !s:flake8_show_in_file == 0
230         for l:val in values(s:markerdata)
231             if l:val.marker != '' && has_key(l:val, 'matchstr')
232                 let l:val.matchid = matchadd(l:val.name, l:val.matchstr.'\)')
233             endif
234         endfor
235     endif
236 endfunction  " }}}
237
238 function! s:UnplaceMarkers()  " {{{
239     " gutter markers
240     if exists('s:signids')
241         for i in s:signids
242             execute ":sign unplace ".i
243         endfor
244         unlet s:signids
245     endif
246     " file markers
247     for l:val in values(s:markerdata)
248         if has_key(l:val, 'matchid')
249             call matchdelete(l:val.matchid)
250             unlet l:val.matchid
251             unlet l:val.matchstr
252         endif
253     endfor
254 endfunction  " }}}
255
256 "" }}}
257
258 let &cpo = s:save_cpo
259 unlet s:save_cpo
260