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" Author: farenjihn <farenjihn@gmail.com>, w0rp <devw0rp@gmail.com>
" Description: Lints java files using javac
let g:ale_java_javac_options = get(g:, 'ale_java_javac_options', '')
let g:ale_java_javac_classpath = get(g:, 'ale_java_javac_classpath', '')
function! ale_linters#java#javac#GetCommand(buffer) abort
let l:cp_option = !empty(g:ale_java_javac_classpath)
\ ? '-cp ' . g:ale_java_javac_classpath
\ : ''
" Create .class files in a temporary directory, which we will delete later.
let l:class_file_directory = ale#engine#CreateDirectory(a:buffer)
return 'javac -Xlint '
\ . l:cp_option
\ . ' -d ' . fnameescape(l:class_file_directory)
\ . ' ' . g:ale_java_javac_options
\ . ' %t'
endfunction
function! ale_linters#java#javac#Handle(buffer, lines) abort
" Look for lines like the following.
"
" Main.java:13: warning: [deprecation] donaught() in Testclass has been deprecated
" Main.java:16: error: ';' expected
let l:pattern = '^.*\:\(\d\+\):\ \(.*\):\(.*\)$'
let l:output = []
for l:line in a:lines
let l:match = matchlist(l:line, l:pattern)
if len(l:match) == 0
continue
endif
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': l:match[1] + 0,
\ 'text': l:match[2] . ':' . l:match[3],
\ 'type': l:match[2] ==# 'error' ? 'E' : 'W',
\})
endfor
return l:output
endfunction
call ale#linter#Define('java', {
\ 'name': 'javac',
\ 'output_stream': 'stderr',
\ 'executable': 'javac',
\ 'command_callback': 'ale_linters#java#javac#GetCommand',
\ 'callback': 'ale_linters#java#javac#Handle',
\})
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