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" Author: Eddie Lebow https://github.com/elebow
" Description: Brakeman, a static analyzer for Rails security
let g:ale_ruby_brakeman_options =
\ get(g:, 'ale_ruby_brakeman_options', '')
function! ale_linters#ruby#brakeman#Handle(buffer, lines) abort
let l:result = json_decode(join(a:lines, ''))
let l:output = []
for l:warning in l:result.warnings
" Brakeman always outputs paths relative to the Rails app root
let l:rails_root = s:FindRailsRoot(a:buffer)
let l:warning_file = l:rails_root . '/' . l:warning.file
if !ale#path#IsBufferPath(a:buffer, l:warning_file)
continue
endif
let l:text = l:warning.warning_type . ' ' . l:warning.message . ' (' . l:warning.confidence . ')'
let l:line = l:warning.line != v:null ? l:warning.line : 1
call add(l:output, {
\ 'lnum': l:line,
\ 'type': 'W',
\ 'text': l:text,
\})
endfor
return l:output
endfunction
function! ale_linters#ruby#brakeman#GetCommand(buffer) abort
let l:rails_root = s:FindRailsRoot(a:buffer)
if l:rails_root ==? ''
return ''
endif
return 'brakeman -f json -q '
\ . ale#Var(a:buffer, 'ruby_brakeman_options')
\ . ' -p ' . ale#Escape(l:rails_root)
endfunction
function! s:FindRailsRoot(buffer) abort
" Find the nearest dir contining "app", "db", and "config", and assume it is
" the root of a Rails app.
for l:name in ['app', 'config', 'db']
let l:dir = fnamemodify(
\ ale#path#FindNearestDirectory(a:buffer, l:name),
\ ':h:h'
\)
if l:dir !=# '.'
\&& isdirectory(l:dir . '/app')
\&& isdirectory(l:dir . '/config')
\&& isdirectory(l:dir . '/db')
return l:dir
endif
endfor
return ''
endfunction
call ale#linter#Define('ruby', {
\ 'name': 'brakeman',
\ 'executable': 'brakeman',
\ 'command_callback': 'ale_linters#ruby#brakeman#GetCommand',
\ 'callback': 'ale_linters#ruby#brakeman#Handle',
\ 'lint_file': 1,
\})
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