ale/ale_linters/elm/make.vim
Aryeh Leib Taurog ba38688dff support tests/ with elm 0.19.0
With earlier elm versions, a separate package file is maintained for
tests, which when properly configured enabled the compiler to find what
it needed to compile the tests.  Under elm 0.19, test dependencies are
managed in the top-level package file, so `elm make` will fail on the
tests.  `elm-test make` is required in this case.

See https://github.com/elm-explorations/test/issues/64
2019-01-04 09:55:35 +02:00

225 lines
7.4 KiB
VimL

" Author: buffalocoder - https://github.com/buffalocoder, soywod - https://github.com/soywod, hecrj - https://github.com/hecrj
" Description: Elm linting in Ale. Closely follows the Syntastic checker in https://github.com/ElmCast/elm-vim.
call ale#Set('elm_make_executable', 'elm')
call ale#Set('elm_make_use_global', get(g:, 'ale_use_global_executables', 0))
function! ale_linters#elm#make#Handle(buffer, lines) abort
let l:output = []
let l:unparsed_lines = []
for l:line in a:lines
if l:line[0] is# '{'
" Elm 0.19
call ale_linters#elm#make#HandleElm019Line(l:line, l:output)
elseif l:line[0] is# '['
" Elm 0.18
call ale_linters#elm#make#HandleElm018Line(l:line, l:output)
elseif l:line isnot# 'Successfully generated /dev/null'
call add(l:unparsed_lines, l:line)
endif
endfor
if len(l:unparsed_lines) > 0
call add(l:output, {
\ 'lnum': 1,
\ 'type': 'E',
\ 'text': l:unparsed_lines[0],
\ 'detail': join(l:unparsed_lines, "\n")
\})
endif
return l:output
endfunction
function! ale_linters#elm#make#HandleElm019Line(line, output) abort
let l:report = json_decode(a:line)
if l:report.type is? 'error'
" General problem
let l:details = ale_linters#elm#make#ParseMessage(l:report.message)
if empty(l:report.path)
let l:report.path = 'Elm'
endif
if ale_linters#elm#make#FileIsBuffer(l:report.path)
call add(a:output, {
\ 'lnum': 1,
\ 'type': 'E',
\ 'text': l:details,
\})
else
call add(a:output, {
\ 'lnum': 1,
\ 'type': 'E',
\ 'text': l:report.path .' - '. l:details,
\ 'detail': l:report.path ." ----------\n\n". l:details,
\})
endif
else
" Compilation errors
for l:error in l:report.errors
let l:file_is_buffer = ale_linters#elm#make#FileIsBuffer(l:error.path)
for l:problem in l:error.problems
let l:details = ale_linters#elm#make#ParseMessage(l:problem.message)
if l:file_is_buffer
" Buffer module has problems
call add(a:output, {
\ 'lnum': l:problem.region.start.line,
\ 'col': l:problem.region.start.column,
\ 'end_lnum': l:problem.region.end.line,
\ 'end_col': l:problem.region.end.column,
\ 'type': 'E',
\ 'text': l:details,
\})
else
" Imported module has problems
let l:location = l:error.path .':'. l:problem.region.start.line
call add(a:output, {
\ 'lnum': 1,
\ 'type': 'E',
\ 'text': l:location .' - '. l:details,
\ 'detail': l:location ." ----------\n\n". l:details,
\})
endif
endfor
endfor
endif
endfunction
function! ale_linters#elm#make#HandleElm018Line(line, output) abort
let l:errors = json_decode(a:line)
for l:error in l:errors
let l:file_is_buffer = ale_linters#elm#make#FileIsBuffer(l:error.file)
if l:file_is_buffer
" Current buffer has problems
call add(a:output, {
\ 'lnum': l:error.region.start.line,
\ 'col': l:error.region.start.column,
\ 'end_lnum': l:error.region.end.line,
\ 'end_col': l:error.region.end.column,
\ 'type': (l:error.type is? 'error') ? 'E' : 'W',
\ 'text': l:error.overview,
\ 'detail': l:error.overview . "\n\n" . l:error.details
\})
elseif l:error.type is? 'error'
" Imported module has errors
let l:location = l:error.file .':'. l:error.region.start.line
call add(a:output, {
\ 'lnum': 1,
\ 'type': 'E',
\ 'text': l:location .' - '. l:error.overview,
\ 'detail': l:location ." ----------\n\n". l:error.overview . "\n\n" . l:error.details
\})
endif
endfor
endfunction
function! ale_linters#elm#make#FileIsBuffer(path) abort
return ale#path#IsTempName(a:path)
endfunction
function! ale_linters#elm#make#ParseMessage(message) abort
return join(map(copy(a:message), 'ale_linters#elm#make#ParseMessageItem(v:val)'), '')
endfunction
function! ale_linters#elm#make#ParseMessageItem(item) abort
if type(a:item) is v:t_string
return a:item
else
return a:item.string
endif
endfunction
function! ale_linters#elm#make#GetPackageFile(buffer) abort
let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')
if empty(l:elm_json)
" Fallback to Elm 0.18
let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm-package.json')
endif
return l:elm_json
endfunction
function! ale_linters#elm#make#IsVersionGte19(buffer) abort
let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
if l:elm_json =~# '-package'
return 0
else
return 1
endif
endfunction
function! ale_linters#elm#make#GetRootDir(buffer) abort
let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
if empty(l:elm_json)
return ''
else
return fnamemodify(l:elm_json, ':p:h')
endif
endfunction
function! ale_linters#elm#make#IsTest(buffer) abort
let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
if empty(l:root_dir)
return 0
endif
let l:tests_dir = join([l:root_dir, 'tests', ''], has('win32') ? '\' : '/')
let l:buffer_path = fnamemodify(bufname(a:buffer), ':p')
if match(l:buffer_path, l:tests_dir) == 0
return 1
else
return 0
endif
endfunction
" Return the command to execute the linter in the projects directory.
" If it doesn't, then this will fail when imports are needed.
function! ale_linters#elm#make#GetCommand(buffer) abort
let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
if empty(l:root_dir)
let l:dir_set_cmd = ''
else
let l:dir_set_cmd = 'cd ' . ale#Escape(l:root_dir) . ' && '
endif
" The elm compiler, at the time of this writing, uses '/dev/null' as
" a sort of flag to tell the compiler not to generate an output file,
" which is why this is hard coded here.
" Source: https://github.com/elm-lang/elm-compiler/blob/19d5a769b30ec0b2fc4475985abb4cd94cd1d6c3/builder/src/Generate/Output.hs#L253
return l:dir_set_cmd . '%e make --report=json --output=/dev/null %t'
endfunction
function! ale_linters#elm#make#GetExecutable(buffer) abort
let l:is_test = ale_linters#elm#make#IsTest(a:buffer)
let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
if l:is_test && l:is_v19
return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm-test'])
else
return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
endif
endfunction
call ale#linter#Define('elm', {
\ 'name': 'make',
\ 'executable_callback': 'ale_linters#elm#make#GetExecutable',
\ 'output_stream': 'both',
\ 'command_callback': 'ale_linters#elm#make#GetCommand',
\ 'callback': 'ale_linters#elm#make#Handle'
\})