ale/ale_linters/haskell/hie.vim
Evan Borden a8915d885b Add better support for Haskell stack compiler tools (#1851)
* Add better support for Haskell stack compiler tools

This commit adds support for `stack` as the executable of a tool. This
follows a pattern that has been implemented for `bundler`'s tool chain.

* Move hlint command to linter file
* Add vader test for stack exec handling
* Update ghc-mod to support stack execution

`ghc-mod` was previously broken into 2 linters.

1. ghc_mod
2. stack_ghc_mod

This additional linter is not necessary with proper support for
executable variables and `stack exec` handling.

* Support stack exec in hfmt
* Support stack in hdevtools
2018-09-28 09:05:01 +01:00

48 lines
1.5 KiB
VimL

" Author: Luxed <devildead13@gmail.com>
" Description: A language server for Haskell
call ale#Set('haskell_hie_executable', 'hie')
function! ale_linters#haskell#hie#GetProjectRoot(buffer) abort
" Search for the stack file first
let l:project_file = ale#path#FindNearestFile(a:buffer, 'stack.yaml')
" If it's empty, search for the cabal file
if empty(l:project_file)
let l:cabal_file = fnamemodify(bufname(a:buffer), ':p:h')
let l:paths = ''
while empty(matchstr(l:cabal_file, '^\(\/\|\(\w:\\\)\)$'))
let l:cabal_file = fnamemodify(l:cabal_file, ':h')
let l:paths = l:paths . l:cabal_file . ','
endwhile
let l:project_file = globpath(l:paths, '*.cabal')
endif
" Either extract the project directory or take the current working
" directory
if !empty(l:project_file)
let l:project_file = fnamemodify(l:project_file, ':h')
else
let l:project_file = expand('#' . a:buffer . ':p:h')
endif
return l:project_file
endfunction
function! ale_linters#haskell#hie#GetCommand(buffer) abort
let l:executable = ale#Var(a:buffer, 'haskell_hie_executable')
return ale#handlers#haskell_stack#EscapeExecutable(l:executable, 'hie')
\ . ' --lsp'
endfunction
call ale#linter#Define('haskell', {
\ 'name': 'hie',
\ 'lsp': 'stdio',
\ 'command_callback': 'ale_linters#haskell#hie#GetCommand',
\ 'executable_callback': ale#VarFunc('haskell_hie_executable'),
\ 'project_root_callback': 'ale_linters#haskell#hie#GetProjectRoot',
\})