mirror of https://github.com/dense-analysis/ale
103 lines
2.7 KiB
VimL
103 lines
2.7 KiB
VimL
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" Author: farenjihn <farenjihn@gmail.com>
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" Description: Lints java files using javac
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let g:loaded_ale_linters_java_javac = 1
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let g:ale_java_javac_classpath = ''
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let s:eclipse_classpath = ''
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let s:tmppath = '/tmp/java_ale/'
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function! ale_linters#java#javac#Handle(buffer, lines) abort
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" Look for lines like the following.
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"
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" Main.java:13: warning: [deprecation] donaught() in Testclass has been deprecated
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" Main.java:16: error: ';' expected
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let l:pattern = '^.*\:\(\d\+\):\ \(.*\):\(.*\)$'
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let l:output = []
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for l:line in a:lines
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let l:match = matchlist(l:line, l:pattern)
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if len(l:match) == 0
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continue
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endif
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call add(l:output, {
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\ 'bufnr': a:buffer,
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\ 'lnum': l:match[1] + 0,
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\ 'vcol': 0,
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\ 'col': 1,
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\ 'text': l:match[2] . ':' . l:match[3],
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\ 'type': l:match[2] ==# 'error' ? 'E' : 'W',
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\ 'nr': -1,
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\})
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endfor
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return l:output
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endfunction
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function! ale_linters#java#javac#ParseEclipseClasspath()
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let l:eclipse_classpath = ''
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python << EOF
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import xml.etree.ElementTree as ET, vim
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tree = ET.parse(".classpath")
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root = tree.getroot()
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classpath = ''
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for child in root:
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classpath += child.get("path")
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classpath += ':'
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vim.command("let l:eclipse_classpath = '%s'" % classpath);
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# Cannot indent this EOF token as per :h python
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EOF
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return l:eclipse_classpath
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endfunction
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function! ale_linters#java#javac#CheckEclipseClasspath()
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" Eclipse .classpath parsing through python
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if file_readable('.classpath')
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let s:eclipse_classpath = ale_linters#java#javac#ParseEclipseClasspath()
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endif
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endfunction
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function! ale_linters#java#javac#GetCommand(buffer)
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let l:path = s:tmppath . expand('%:p:h')
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let l:file = expand('%:t')
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let l:buf = getline(1, '$')
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" Javac cannot compile files from stdin so we move a copy into /tmp instead
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call mkdir(l:path, 'p')
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call writefile(l:buf, l:path . '/' . l:file)
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return 'javac '
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\ . '-Xlint '
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\ . '-cp ' . s:eclipse_classpath . g:ale_java_javac_classpath . ':. '
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\ . g:ale_java_javac_options
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\ . ' ' . l:path . '/' . l:file
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endfunction
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function! ale_linters#java#javac#CleanupTmp()
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call delete(s:tmppath, 'rf')
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endfunction
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augroup java_ale_au
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autocmd! BufEnter *.java call ale_linters#java#javac#CheckEclipseClasspath()
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autocmd! BufLeave *.java call ale_linters#java#javac#CleanupTmp()
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augroup END
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call ale_linters#java#javac#CheckEclipseClasspath()
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call ale#linter#Define('java', {
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\ 'name': 'javac',
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\ 'output_stream': 'stderr',
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\ 'executable': 'javac',
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\ 'command_callback': 'ale_linters#java#javac#GetCommand',
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\ 'callback': 'ale_linters#java#javac#Handle',
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\})
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