ale/ale_linters/erlang/erlang_ls.vim

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" Author: Dmitri Vereshchagin <dmitri.vereshchagin@gmail.com>
" Description: LSP linter for Erlang files
call ale#Set('erlang_erlang_ls_executable', 'erlang_ls')
call ale#Set('erlang_erlang_ls_log_dir', '')
call ale#Set('erlang_erlang_ls_log_level', 'info')
function! s:GetCommand(buffer) abort
let l:log_dir = ale#Var(a:buffer, 'erlang_erlang_ls_log_dir')
let l:log_level = ale#Var(a:buffer, 'erlang_erlang_ls_log_level')
let l:command = '%e'
if !empty(l:log_dir)
let l:command .= ' --log-dir=' . ale#Escape(l:log_dir)
endif
let l:command .= ' --log-level=' . ale#Escape(l:log_level)
return l:command
endfunction
function! s:FindProjectRoot(buffer) abort
let l:markers = ['_build/', 'erlang_ls.config', 'rebar.lock']
" This is a way to find Erlang/OTP root (the one that is managed
" by kerl or asdf). Useful if :ALEGoToDefinition takes us there.
let l:markers += ['.kerl_config']
for l:marker in l:markers
let l:path = l:marker[-1:] is# '/'
\ ? ale#path#FindNearestDirectory(a:buffer, l:marker)
\ : ale#path#FindNearestFile(a:buffer, l:marker)
if !empty(l:path)
return ale#path#Dirname(l:path)
endif
endfor
return ''
endfunction
call ale#linter#Define('erlang', {
\ 'name': 'erlang_ls',
\ 'executable': {b -> ale#Var(b, 'erlang_erlang_ls_executable')},
\ 'command': function('s:GetCommand'),
\ 'lsp': 'stdio',
\ 'project_root': function('s:FindProjectRoot'),
\})