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" Author: Horacio Sanson <https://github.com/hsanson>
" Description: Support for the Eclipse language server https://github.com/eclipse/eclipse.jdt.ls
let s:version_cache = {}
call ale#Set('java_eclipselsp_path', ale#path#Simplify($HOME . '/eclipse.jdt.ls'))
call ale#Set('java_eclipselsp_config_path', '')
call ale#Set('java_eclipselsp_executable', 'java')
function! ale_linters#java#eclipselsp#Executable(buffer) abort
return ale#Var(a:buffer, 'java_eclipselsp_executable')
endfunction
function! ale_linters#java#eclipselsp#TargetPath(buffer) abort
return ale#Var(a:buffer, 'java_eclipselsp_path')
endfunction
function! ale_linters#java#eclipselsp#JarPath(buffer) abort
let l:path = ale_linters#java#eclipselsp#TargetPath(a:buffer)
" Search jar file within repository path when manually built using mvn
let l:repo_path = l:path . '/org.eclipse.jdt.ls.product/target/repository'
let l:files = globpath(l:repo_path, '**/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
if len(l:files) == 1
return l:files[0]
endif
" Search jar file within VSCode extensions folder.
let l:files = globpath(l:path, '**/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
if len(l:files) == 1
return l:files[0]
endif
" Search jar file within system package path
let l:files = globpath('/usr/share/java/jdtls/plugins', 'org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
if len(l:files) == 1
return l:files[0]
endif
return ''
endfunction
function! ale_linters#java#eclipselsp#ConfigurationPath(buffer) abort
let l:path = fnamemodify(ale_linters#java#eclipselsp#JarPath(a:buffer), ':p:h:h')
let l:config_path = ale#Var(a:buffer, 'java_eclipselsp_config_path')
if !empty(l:config_path)
return ale#path#Simplify(l:config_path)
endif
if has('win32')
let l:path = l:path . '/config_win'
elseif has('macunix')
let l:path = l:path . '/config_mac'
else
let l:path = l:path . '/config_linux'
endif
return ale#path#Simplify(l:path)
endfunction
function! ale_linters#java#eclipselsp#VersionCheck(version_lines) abort
return s:GetVersion('', a:version_lines)
endfunction
function! s:GetVersion(executable, version_lines) abort
let l:version = []
for l:line in a:version_lines
let l:match = matchlist(l:line, '\(\d\+\)\.\(\d\+\)\.\(\d\+\)')
if !empty(l:match)
let l:version = [l:match[1] + 0, l:match[2] + 0, l:match[3] + 0]
let s:version_cache[a:executable] = l:version
break
endif
endfor
return l:version
endfunction
function! ale_linters#java#eclipselsp#CommandWithVersion(buffer, version_lines, meta) abort
let l:executable = ale_linters#java#eclipselsp#Executable(a:buffer)
let l:version = s:GetVersion(l:executable, a:version_lines)
return ale_linters#java#eclipselsp#Command(a:buffer, l:version)
endfunction
function! ale_linters#java#eclipselsp#Command(buffer, version) abort
let l:path = ale#Var(a:buffer, 'java_eclipselsp_path')
let l:executable = ale_linters#java#eclipselsp#Executable(a:buffer)
let l:cmd = [ ale#Escape(l:executable),
\ '-Declipse.application=org.eclipse.jdt.ls.core.id1',
\ '-Dosgi.bundles.defaultStartLevel=4',
\ '-Declipse.product=org.eclipse.jdt.ls.core.product',
\ '-Dlog.level=ALL',
\ '-noverify',
\ '-Xmx1G',
\ '-jar',
\ ale_linters#java#eclipselsp#JarPath(a:buffer),
\ '-configuration',
\ ale_linters#java#eclipselsp#ConfigurationPath(a:buffer),
\ '-data',
\ ale#java#FindProjectRoot(a:buffer)
\ ]
if ale#semver#GTE(a:version, [1, 9])
call add(l:cmd, '--add-modules=ALL-SYSTEM')
call add(l:cmd, '--add-opens java.base/java.util=ALL-UNNAMED')
call add(l:cmd, '--add-opens java.base/java.lang=ALL-UNNAMED')
endif
return join(l:cmd, ' ')
endfunction
function! ale_linters#java#eclipselsp#RunWithVersionCheck(buffer) abort
let l:executable = ale_linters#java#eclipselsp#Executable(a:buffer)
if empty(l:executable)
return ''
endif
let l:cache = s:version_cache
if has_key(s:version_cache, l:executable)
return ale_linters#java#eclipselsp#Command(a:buffer, s:version_cache[l:executable])
endif
let l:command = ale#Escape(l:executable) . ' -version'
return ale#command#Run(
\ a:buffer,
\ l:command,
\ function('ale_linters#java#eclipselsp#CommandWithVersion')
\)
endfunction
call ale#linter#Define('java', {
\ 'name': 'eclipselsp',
\ 'lsp': 'stdio',
\ 'executable': function('ale_linters#java#eclipselsp#Executable'),
\ 'command': function('ale_linters#java#eclipselsp#RunWithVersionCheck'),
\ 'language': 'java',
\ 'project_root': function('ale#java#FindProjectRoot'),
\})
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