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" Author: Jeffrey Lau - https://github.com/zoonfafer
" Description: Metals Language Server for Scala https://scalameta.org/metals/
call ale#Set('scala_metals_executable', 'metals-vim')
call ale#Set('scala_metals_project_root', '')
function! ale_linters#scala#metals#GetProjectRoot(buffer) abort
let l:project_root = ale#Var(a:buffer, 'scala_metals_project_root')
if !empty(l:project_root)
return l:project_root
endif
let l:potential_roots = [
\ 'build.sc',
\ 'build.sbt',
\ '.bloop',
\ '.metals',
\]
for l:root in l:potential_roots
let l:project_root = ale#path#ResolveLocalPath(
\ a:buffer,
\ l:root,
\ ''
\)
if !empty(l:project_root)
return fnamemodify(
\ l:project_root,
\ ':h',
\)
endif
endfor
return ''
endfunction
function! ale_linters#scala#metals#GetCommand(buffer) abort
return '%e' . ale#Pad('stdio')
endfunction
call ale#linter#Define('scala', {
\ 'name': 'metals',
\ 'lsp': 'stdio',
\ 'language': 'scala',
\ 'executable': {b -> ale#Var(b, 'scala_metals_executable')},
\ 'command': function('ale_linters#scala#metals#GetCommand'),
\ 'project_root': function('ale_linters#scala#metals#GetProjectRoot'),
\})
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