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" Author: Mohammed Chelouti - https://github.com/motato1
" Arnold Chand <creativenull@outlook.com>
" Description: Handler functions for Deno.
call ale#Set('deno_executable', 'deno')
call ale#Set('deno_unstable', 0)
call ale#Set('deno_importMap', 'import_map.json')
call ale#Set('deno_lsp_project_root', '')
function! ale#handlers#deno#GetExecutable(buffer) abort
return ale#Var(a:buffer, 'deno_executable')
endfunction
" Find project root for Deno's language server.
"
" Deno projects do not require a project or configuration file at the project root.
" This means the root directory has to be guessed,
" unless it is explicitly specified by the user.
"
" The project root is determined by ...
" 1. using a user-specified value from deno_lsp_project_root
" 2. looking for common top-level files/dirs
" 3. using the buffer's directory
function! ale#handlers#deno#GetProjectRoot(buffer) abort
let l:project_root = ale#Var(a:buffer, 'deno_lsp_project_root')
if !empty(l:project_root)
return l:project_root
endif
let l:possible_project_roots = [
\ 'deno.json',
\ 'deno.jsonc',
\ 'tsconfig.json',
\ '.git',
\ bufname(a:buffer),
\]
for l:possible_root in l:possible_project_roots
let l:project_root = ale#path#FindNearestFile(a:buffer, l:possible_root)
if empty(l:project_root)
let l:project_root = ale#path#FindNearestDirectory(a:buffer, l:possible_root)
endif
if !empty(l:project_root)
" dir:p expands to /full/path/to/dir/ whereas
" file:p expands to /full/path/to/file (no trailing slash)
" Appending '/' ensures that :h:h removes the path's last segment
" regardless of whether it is a directory or not.
return fnamemodify(l:project_root . '/', ':p:h:h')
endif
endfor
return ''
endfunction
" Initialization Options for deno, for javascript and typescript
function! ale#handlers#deno#GetInitializationOptions(buffer) abort
let l:options = {
\ 'enable': v:true,
\ 'lint': v:true,
\ 'unstable': v:false,
\ 'importMap': ale#path#FindNearestFile(a:buffer, 'import_map.json'),
\ }
if ale#Var(a:buffer, 'deno_unstable')
let l:options.unstable = v:true
endif
if ale#Var(a:buffer, 'deno_importMap') isnot# ''
let l:options.importMap = ale#path#FindNearestFile(a:buffer, ale#Var(a:buffer, 'deno_importMap'))
endif
return l:options
endfunction
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