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" Author: ynonp - https://github.com/ynonp, Eddie Lebow https://github.com/elebow
" Description: RuboCop, a code style analyzer for Ruby files
function! ale_linters#ruby#rubocop#GetCommand(buffer) abort
let l:executable = ale#handlers#rubocop#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'bundle$'
\ ? ' exec rubocop'
\ : ''
return ale#Escape(l:executable) . l:exec_args
\ . ' --format json --force-exclusion '
\ . ale#Var(a:buffer, 'ruby_rubocop_options')
\ . ' --stdin ' . bufname(a:buffer)
endfunction
function! ale_linters#ruby#rubocop#Handle(buffer, lines) abort
if len(a:lines) == 0
return []
endif
let l:errors = json_decode(a:lines[0])
let l:output = []
for l:error in l:errors['files'][0]['offenses']
let l:start_col = l:error['location']['column'] + 0
call add(l:output, {
\ 'lnum': l:error['location']['line'] + 0,
\ 'col': l:start_col,
\ 'end_col': l:start_col + l:error['location']['length'] - 1,
\ 'text': l:error['message'],
\ 'type': ale_linters#ruby#rubocop#GetType(l:error['severity']),
\})
endfor
return l:output
endfunction
function! ale_linters#ruby#rubocop#GetType(severity) abort
if a:severity ==? 'refactor'
return 'W'
elseif a:severity ==? 'convention'
return 'W'
elseif a:severity ==? 'warning'
return 'W'
elseif a:severity ==? 'error'
return 'E'
elseif a:severity ==? 'fatal'
return 'E'
else
echo 'Rubocop offense type unrecognized by ALE: ' + a:severity
return ''
endif
endfunction
call ale#linter#Define('ruby', {
\ 'name': 'rubocop',
\ 'executable_callback': 'ale#handlers#rubocop#GetExecutable',
\ 'command_callback': 'ale_linters#ruby#rubocop#GetCommand',
\ 'callback': 'ale_linters#ruby#rubocop#Handle',
\})
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