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95 lines
3.2 KiB
VimL
95 lines
3.2 KiB
VimL
" Author: farenjihn <farenjihn@gmail.com>, w0rp <devw0rp@gmail.com>
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" Description: Lints java files using javac
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let s:classpath_sep = has('unix') ? ':' : ';'
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let g:ale_java_javac_options = get(g:, 'ale_java_javac_options', '')
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let g:ale_java_javac_classpath = get(g:, 'ale_java_javac_classpath', '')
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function! ale_linters#java#javac#GetImportPaths(buffer) abort
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let l:pom_path = ale#path#FindNearestFile(a:buffer, 'pom.xml')
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if !empty(l:pom_path) && executable('mvn')
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return ale#path#CdString(fnamemodify(l:pom_path, ':h'))
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\ . 'mvn dependency:build-classpath'
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endif
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return ''
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endfunction
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function! s:BuildClassPathOption(buffer, import_paths) abort
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" Filter out lines like [INFO], etc.
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let l:class_paths = filter(a:import_paths[:], 'v:val !~# ''[''')
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call extend(
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\ l:class_paths,
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\ split(ale#Var(a:buffer, 'java_javac_classpath'), s:classpath_sep),
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\)
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return !empty(l:class_paths)
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\ ? '-cp ' . ale#Escape(join(l:class_paths, s:classpath_sep))
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\ : ''
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endfunction
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function! ale_linters#java#javac#GetCommand(buffer, import_paths) abort
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let l:cp_option = s:BuildClassPathOption(a:buffer, a:import_paths)
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let l:sp_option = ''
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" Find the src directory, for files in this project.
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let l:src_dir = ale#path#FindNearestDirectory(a:buffer, 'src/main/java')
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if !empty(l:src_dir)
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let l:sp_option = '-sourcepath ' . ale#Escape(l:src_dir)
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endif
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" Create .class files in a temporary directory, which we will delete later.
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let l:class_file_directory = ale#engine#CreateDirectory(a:buffer)
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return 'javac -Xlint'
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\ . ' ' . l:cp_option
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\ . ' ' . l:sp_option
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\ . ' -d ' . ale#Escape(l:class_file_directory)
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\ . ' ' . ale#Var(a:buffer, 'java_javac_options')
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\ . ' %t'
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endfunction
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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 = '\v^.*:(\d+): (.+):(.+)$'
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let l:col_pattern = '\v^(\s*\^)$'
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let l:symbol_pattern = '\v^ +symbol: *(class|method) +([^ ]+)'
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let l:output = []
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for l:match in ale#util#GetMatches(a:lines, [l:pattern, l:col_pattern, l:symbol_pattern])
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if empty(l:match[2]) && empty(l:match[3])
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let l:output[-1].col = len(l:match[1])
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elseif empty(l:match[3])
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" Add symbols to 'cannot find symbol' errors.
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if l:output[-1].text is# 'error: cannot find symbol'
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let l:output[-1].text .= ': ' . l:match[2]
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endif
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else
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call add(l:output, {
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\ 'lnum': l:match[1] + 0,
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\ 'text': l:match[2] . ':' . l:match[3],
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\ 'type': l:match[2] is# 'error' ? 'E' : 'W',
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\})
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endif
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endfor
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return l:output
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endfunction
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call ale#linter#Define('java', {
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\ 'name': 'javac',
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\ 'executable': 'javac',
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\ 'command_chain': [
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\ {'callback': 'ale_linters#java#javac#GetImportPaths', 'output_stream': 'stdout'},
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\ {'callback': 'ale_linters#java#javac#GetCommand', 'output_stream': 'stderr'},
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\ ],
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\ 'callback': 'ale_linters#java#javac#Handle',
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\})
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