1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
" Author: w0rp <devw0rp@gmail.com>
" Description: flake8 for python files
call ale#Set('python_flake8_executable', 'flake8')
call ale#Set('python_flake8_options', '')
call ale#Set('python_flake8_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_flake8_change_directory', 'project')
call ale#Set('python_flake8_auto_pipenv', 0)
call ale#Set('python_flake8_auto_poetry', 0)
function! s:UsingModule(buffer) abort
return ale#Var(a:buffer, 'python_flake8_options') =~# ' *-m flake8'
endfunction
function! ale_linters#python#flake8#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_flake8_auto_pipenv'))
\ && ale#python#PipenvPresent(a:buffer)
return 'pipenv'
endif
if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_flake8_auto_poetry'))
\ && ale#python#PoetryPresent(a:buffer)
return 'poetry'
endif
if !s:UsingModule(a:buffer)
return ale#python#FindExecutable(a:buffer, 'python_flake8', ['flake8'])
endif
return ale#Var(a:buffer, 'python_flake8_executable')
endfunction
function! ale_linters#python#flake8#RunWithVersionCheck(buffer) abort
let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
let l:module_string = s:UsingModule(a:buffer) ? ' -m flake8' : ''
let l:command = ale#Escape(l:executable) . l:module_string . ' --version'
return ale#semver#RunWithVersionCheck(
\ a:buffer,
\ l:executable,
\ l:command,
\ function('ale_linters#python#flake8#GetCommand'),
\)
endfunction
function! ale_linters#python#flake8#GetCwd(buffer) abort
let l:change_directory = ale#Var(a:buffer, 'python_flake8_change_directory')
let l:cwd = ''
if l:change_directory is# 'project'
let l:project_root = ale#python#FindProjectRootIni(a:buffer)
if !empty(l:project_root)
let l:cwd = l:project_root
endif
endif
if (l:change_directory is# 'project' && empty(l:cwd))
\|| l:change_directory is# 1
\|| l:change_directory is# 'file'
let l:cwd = '%s:h'
endif
return l:cwd
endfunction
function! ale_linters#python#flake8#GetCommand(buffer, version) abort
let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv\|poetry$'
\ ? ' run flake8'
\ : ''
" Only include the --stdin-display-name argument if we can parse the
" flake8 version, and it is recent enough to support it.
let l:display_name_args = ale#semver#GTE(a:version, [3, 0, 0])
\ ? ' --stdin-display-name %s'
\ : ''
let l:options = ale#Var(a:buffer, 'python_flake8_options')
return ale#Escape(l:executable) . l:exec_args
\ . (!empty(l:options) ? ' ' . l:options : '')
\ . ' --format=default'
\ . l:display_name_args . ' -'
endfunction
let s:end_col_pattern_map = {
\ 'F405': '\(.\+\) may be undefined',
\ 'F821': 'undefined name ''\([^'']\+\)''',
\ 'F999': '^''\([^'']\+\)''',
\ 'F841': 'local variable ''\([^'']\+\)''',
\}
function! ale_linters#python#flake8#Handle(buffer, lines) abort
let l:output = ale#python#HandleTraceback(a:lines, 10)
if !empty(l:output)
return l:output
endif
" Matches patterns line the following:
"
" Matches patterns line the following:
"
" stdin:6:6: E111 indentation is not a multiple of four
let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):?(\d+)?: ([[:alnum:]]+):? (.*)$'
for l:match in ale#util#GetMatches(a:lines, l:pattern)
let l:code = l:match[3]
if (l:code is# 'W291' || l:code is# 'W293')
\ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
" Skip warnings for trailing whitespace if the option is off.
continue
endif
if l:code is# 'W391'
\&& !ale#Var(a:buffer, 'warn_about_trailing_blank_lines')
" Skip warnings for trailing blank lines if the option is off
continue
endif
let l:item = {
\ 'lnum': l:match[1] + 0,
\ 'col': l:match[2] + 0,
\ 'vcol': 1,
\ 'text': l:match[4],
\ 'code': l:code,
\ 'type': 'W',
\}
if l:code[:0] is# 'F'
if l:code isnot# 'F401'
let l:item.type = 'E'
endif
elseif l:code[:0] is# 'E'
let l:item.type = 'E'
if l:code isnot# 'E999' && l:code isnot# 'E112'
let l:item.sub_type = 'style'
endif
elseif l:code[:0] is# 'W'
let l:item.sub_type = 'style'
endif
let l:end_col_pattern = get(s:end_col_pattern_map, l:code, '')
if !empty(l:end_col_pattern)
let l:end_col_match = matchlist(l:match[4], l:end_col_pattern)
if !empty(l:end_col_match)
let l:item.end_col = l:item.col + len(l:end_col_match[1]) - 1
endif
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'flake8',
\ 'executable': function('ale_linters#python#flake8#GetExecutable'),
\ 'cwd': function('ale_linters#python#flake8#GetCwd'),
\ 'command': function('ale_linters#python#flake8#RunWithVersionCheck'),
\ 'callback': 'ale_linters#python#flake8#Handle',
\})
|
