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" Author: Francis Agyapong <francisgyapong2@gmail.com>
" Description: A linter for the Kotlin programming language that uses kotlinc
let g:ale_kotlin_kotlinc_options = get(g:, 'ale_kotlin_kotlinc_options', '')
let g:ale_kotlin_kotlinc_enable_config = get(g:, 'ale_kotlin_kotlinc_enable_config', 0)
let g:ale_kotlin_kotlinc_config_file = get(g:, 'ale_kotlin_kotlinc_config_file', '.ale_kotlinc_config')
let g:ale_kotlin_kotlinc_classpath = get(g:, 'ale_kotlin_kotlinc_classpath', '')
let g:ale_kotlin_kotlinc_sourcepath = get(g:, 'ale_kotlin_kotlinc_sourcepath', '')
let g:ale_kotlin_kotlinc_use_module_file = get(g:, 'ale_kotlin_kotlinc_use_module_file', 0)
let g:ale_kotlin_kotlinc_module_filename = get(g:, 'ale_kotlin_kotlinc_module_filename', 'module.xml')
let s:classpath_sep = has('unix') ? ':' : ';'
function! ale_linters#kotlin#kotlinc#GetImportPaths(buffer) abort
" exec maven only if classpath is not set
if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') !=# ''
return ''
else
let l:pom_path = ale#path#FindNearestFile(a:buffer, 'pom.xml')
if !empty(l:pom_path) && executable('mvn')
return ale#path#CdString(fnamemodify(l:pom_path, ':h'))
\ . 'mvn dependency:build-classpath'
endif
return ''
endif
endfunction
function! s:BuildClassPathOption(buffer, import_paths) abort
" Filter out lines like [INFO], etc.
let l:class_paths = filter(a:import_paths[:], 'v:val !~# ''[''')
call extend(
\ l:class_paths,
\ split(ale#Var(a:buffer, 'kotlin_kotlinc_classpath'), s:classpath_sep),
\)
return !empty(l:class_paths)
\ ? ' -cp ' . ale#Escape(join(l:class_paths, s:classpath_sep))
\ : ''
endfunction
function! ale_linters#kotlin#kotlinc#GetCommand(buffer, import_paths) abort
let l:kotlinc_opts = ale#Var(a:buffer, 'kotlin_kotlinc_options')
let l:command = 'kotlinc '
" If the config file is enabled and readable, source it
if ale#Var(a:buffer, 'kotlin_kotlinc_enable_config')
let l:conf = expand(ale#Var(a:buffer, 'kotlin_kotlinc_config_file'), 1)
if filereadable(l:conf)
execute 'source ' . fnameescape(l:conf)
endif
endif
" If use module and module file is readable use that and return
if ale#Var(a:buffer, 'kotlin_kotlinc_use_module_file')
let l:module_filename = ale#Escape(expand(ale#Var(a:buffer, 'kotlin_kotlinc_module_filename'), 1))
if filereadable(l:module_filename)
let l:kotlinc_opts .= ' -module ' . l:module_filename
let l:command .= 'kotlinc ' . l:kotlinc_opts
return l:command
endif
endif
" We only get here if not using module or the module file not readable
if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') !=# ''
let l:kotlinc_opts .= ' -cp ' . ale#Var(a:buffer, 'kotlin_kotlinc_classpath')
else
" get classpath from maven
let l:kotlinc_opts .= s:BuildClassPathOption(a:buffer, a:import_paths)
endif
let l:fname = ''
if ale#Var(a:buffer, 'kotlin_kotlinc_sourcepath') !=# ''
let l:fname .= expand(ale#Var(a:buffer, 'kotlin_kotlinc_sourcepath'), 1) . ' '
else
" Find the src directory for files in this project.
let l:src_dir = ale#path#FindNearestDirectory(a:buffer, 'src/main/java')
let l:fname .= expand(l:src_dir, 1) . ' '
endif
let l:fname .= ale#Escape(expand('#' . a:buffer . ':p'))
let l:command .= l:kotlinc_opts . ' ' . l:fname
return l:command
endfunction
function! ale_linters#kotlin#kotlinc#Handle(buffer, lines) abort
let l:code_pattern = '^\(.*\):\([0-9]\+\):\([0-9]\+\):\s\+\(error\|warning\):\s\+\(.*\)'
let l:general_pattern = '^\(warning\|error\|info\):\s*\(.*\)'
let l:output = []
for l:line in a:lines
let l:match = matchlist(l:line, l:code_pattern)
if len(l:match) == 0
continue
endif
let l:file = l:match[1]
let l:line = l:match[2] + 0
let l:column = l:match[3] + 0
let l:type = l:match[4]
let l:text = l:match[5]
let l:buf_abspath = fnamemodify(l:file, ':p')
let l:curbuf_abspath = expand('#' . a:buffer . ':p')
" Skip if file is not loaded
if l:buf_abspath !=# l:curbuf_abspath
continue
endif
let l:type_marker_str = l:type ==# 'warning' ? 'W' : 'E'
call add(l:output, {
\ 'lnum': l:line,
\ 'col': l:column,
\ 'text': l:text,
\ 'type': l:type_marker_str,
\})
endfor
" Non-code related messages
for l:line in a:lines
let l:match = matchlist(l:line, l:general_pattern)
if len(l:match) == 0
continue
endif
let l:type = l:match[1]
let l:text = l:match[2]
let l:type_marker_str = l:type ==# 'warning' || l:type ==# 'info' ? 'W' : 'E'
call add(l:output, {
\ 'lnum': 1,
\ 'text': l:text,
\ 'type': l:type_marker_str,
\})
endfor
return l:output
endfunction
call ale#linter#Define('kotlin', {
\ 'name': 'kotlinc',
\ 'executable': 'kotlinc',
\ 'command_chain': [
\ {'callback': 'ale_linters#kotlin#kotlinc#GetImportPaths', 'output_stream': 'stdout'},
\ {'callback': 'ale_linters#kotlin#kotlinc#GetCommand', 'output_stream': 'stderr'},
\ ],
\ 'callback': 'ale_linters#kotlin#kotlinc#Handle',
\ 'lint_file': 1,
\})
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