1" The Ruby provider helper
2if exists('g:loaded_ruby_provider')
3  finish
4endif
5let g:loaded_ruby_provider = 1
6
7function! provider#ruby#Detect() abort
8  let e = empty(s:prog) ? 'missing ruby or ruby-host' : ''
9  return [s:prog, e]
10endfunction
11
12function! provider#ruby#Prog() abort
13  return s:prog
14endfunction
15
16function! provider#ruby#Require(host) abort
17  let prog = provider#ruby#Prog()
18  let ruby_plugins = remote#host#PluginsForHost(a:host.name)
19
20  for plugin in ruby_plugins
21    let prog .= " " . shellescape(plugin.path)
22  endfor
23
24  return provider#Poll(prog, a:host.orig_name, '$NVIM_RUBY_LOG_FILE')
25endfunction
26
27function! provider#ruby#Call(method, args) abort
28  if s:err != ''
29    echoerr s:err
30    return
31  endif
32
33  if !exists('s:host')
34    try
35      let s:host = remote#host#Require('legacy-ruby-provider')
36    catch
37      let s:err = v:exception
38      echohl WarningMsg
39      echomsg v:exception
40      echohl None
41      return
42    endtry
43  endif
44  return call('rpcrequest', insert(insert(a:args, 'ruby_'.a:method), s:host))
45endfunction
46
47function! s:detect()
48  if exists("g:ruby_host_prog")
49    return expand(g:ruby_host_prog, v:true)
50  elseif has('win32')
51    return exepath('neovim-ruby-host.bat')
52  else
53    let p = exepath('neovim-ruby-host')
54    if empty(p)
55      return ''
56    endif
57    " neovim-ruby-host could be an rbenv shim for another Ruby version.
58    call system(p)
59    return v:shell_error ? '' : p
60  end
61endfunction
62
63let s:err = ''
64let s:prog = s:detect()
65let s:plugin_path = expand('<sfile>:p:h') . '/script_host.rb'
66let g:loaded_ruby_provider = empty(s:prog) ? 1 : 2
67
68if g:loaded_ruby_provider != 2
69  let s:err = 'Cannot find the neovim RubyGem. Try :checkhealth'
70endif
71
72call remote#host#RegisterClone('legacy-ruby-provider', 'ruby')
73call remote#host#RegisterPlugin('legacy-ruby-provider', s:plugin_path, [])
74