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When rbenv is used for managing Ruby installations, just checking for an
executable called "neovim-ruby-host" is not enough. It has to be run as well.
If it does not return 0, then neovim-ruby-host is merely a shim for another Ruby
installation.
$ rbenv versions
2.5.0
* 2.5.1 (set by /Users/mhi/.rbenv/version)
$ rbenv whence neovim-ruby-host
2.5.0
$ which neovim-ruby-host
/Users/mhi/.rbenv/shims/neovim-ruby-host
$ neovim-ruby-host
rbenv: neovim-ruby-host: command not found
The `neovim-ruby-host' command exists in these Ruby versions:
2.5.0
$ echo $?
127
Additionally, the detection logic was moved from provider#ruby#Detect() to
s:detect(), because the former is run in the sandbox which forbids calling
system().
72 lines
1.7 KiB
VimL
72 lines
1.7 KiB
VimL
" The Ruby provider helper
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if exists('g:loaded_ruby_provider')
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finish
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endif
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let g:loaded_ruby_provider = 1
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function! provider#ruby#Detect() abort
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return s:prog
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endfunction
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function! provider#ruby#Prog() abort
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return s:prog
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endfunction
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function! provider#ruby#Require(host) abort
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let prog = provider#ruby#Prog()
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let ruby_plugins = remote#host#PluginsForHost(a:host.name)
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for plugin in ruby_plugins
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let prog .= " " . shellescape(plugin.path)
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endfor
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return provider#Poll(prog, a:host.orig_name, '$NVIM_RUBY_LOG_FILE')
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endfunction
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function! provider#ruby#Call(method, args) abort
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if s:err != ''
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echoerr s:err
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return
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endif
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if !exists('s:host')
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try
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let s:host = remote#host#Require('legacy-ruby-provider')
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catch
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let s:err = v:exception
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echohl WarningMsg
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echomsg v:exception
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echohl None
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return
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endtry
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endif
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return call('rpcrequest', insert(insert(a:args, 'ruby_'.a:method), s:host))
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endfunction
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function! s:detect()
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if exists("g:ruby_host_prog")
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return g:ruby_host_prog
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elseif has('win32')
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return exepath('neovim-ruby-host.bat')
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else
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let p = exepath('neovim-ruby-host')
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if empty(p)
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return ''
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endif
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" neovim-ruby-host could be an rbenv shim for another Ruby version.
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call system(p)
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return v:shell_error ? '' : p
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end
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endfunction
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let s:err = ''
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let s:prog = s:detect()
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let s:plugin_path = expand('<sfile>:p:h') . '/script_host.rb'
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if empty(s:prog)
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let s:err = 'Cannot find the neovim RubyGem. Try :checkhealth'
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endif
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call remote#host#RegisterClone('legacy-ruby-provider', 'ruby')
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call remote#host#RegisterPlugin('legacy-ruby-provider', s:plugin_path, [])
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