neovim/runtime/autoload/provider/python.vim
Justin M. Keyes 241956720d provider: g:loaded_xx_provider=2 means "enabled and working"
Value of 1 cannot be used, because users might set that in their vimrc
to _disable_ a provider, which would confuse :checkhealth and has().
2019-08-04 13:23:46 +02:00

46 lines
1.3 KiB
VimL

" The Python provider uses a Python host to emulate an environment for running
" python-vim plugins. :help provider
"
" Associating the plugin with the Python host is the first step because plugins
" will be passed as command-line arguments
if exists('g:loaded_python_provider')
finish
endif
let [s:prog, s:err] = provider#pythonx#Detect(2)
let g:loaded_python_provider = empty(s:prog) ? 1 : 2
function! provider#python#Prog() abort
return s:prog
endfunction
function! provider#python#Error() abort
return s:err
endfunction
" The Python provider plugin will run in a separate instance of the Python
" host.
call remote#host#RegisterClone('legacy-python-provider', 'python')
call remote#host#RegisterPlugin('legacy-python-provider', 'script_host.py', [])
function! provider#python#Call(method, args) abort
if s:err != ''
return
endif
if !exists('s:host')
let s:rpcrequest = function('rpcrequest')
" Ensure that we can load the Python host before bootstrapping
try
let s:host = remote#host#Require('legacy-python-provider')
catch
let s:err = v:exception
echohl WarningMsg
echomsg v:exception
echohl None
return
endtry
endif
return call(s:rpcrequest, insert(insert(a:args, 'python_'.a:method), s:host))
endfunction