provider/nodejs: check version in Detect()

runtime/autoload/provider/node.vim

@@ -5,24 +5,35 @@ let g:loaded_node_provider = 1
 
 let s:job_opts = {'rpc': v:true, 'on_stderr': function('provider#stderr_collector')}
 
+function! s:is_minimum_version(version, min_major, min_minor) abort
+  let nodejs_version = a:version
+  if !a:version
+    let nodejs_version = get(split(system(['node', '-v']), "\n"), 0, '')
+    if v:shell_error || nodejs_version[0] !=# 'v'
+      return 0
+    endif
+  endif
+  " [major, minor, patch]
+  let v_list = !!a:version ? a:version : split(nodejs_version[1:], '\.')
+  return len(v_list) == 3
+    \ && ((str2nr(v_list[0]) > str2nr(a:min_major))
+    \     || (str2nr(v_list[0]) == str2nr(a:min_major)
+    \         && str2nr(v_list[1]) >= str2nr(a:min_minor)))
+endfunction
+
 " Support for --inspect-brk requires node 6.12+ or 7.6+ or 8+
 " Return 1 if it is supported
 " Return 0 otherwise
-function! provider#node#can_inspect()
+function! provider#node#can_inspect() abort
   if !executable('node')
     return 0
   endif
-  let node_v = get(split(system(['node', '-v']), "\n"), 0, '')
-  if v:shell_error || node_v[0] !=# 'v'
+  let ver = get(split(system(['node', '-v']), "\n"), 0, '')
+  if v:shell_error || ver[0] !=# 'v'
     return 0
   endif
-  " [major, minor, patch]
-  let node_v = split(node_v[1:], '\.')
-  return len(node_v) == 3 && (
-  \ (node_v[0] > 7) ||
-  \ (node_v[0] == 7 && node_v[1] >= 6) ||
-  \ (node_v[0] == 6 && node_v[1] >= 12)
-  \ )
+  return (ver[1] ==# '6' && s:is_minimum_version(ver, 6, 12))
+    \ || s:is_minimum_version(ver, 7, 6)
 endfunction
 
 function! provider#node#Detect() abort
@@ -30,10 +41,17 @@ function! provider#node#Detect() abort
   if v:shell_error || !isdirectory(global_modules)
     return ''
   endif
-  return glob(global_modules . '/neovim/bin/cli.js')
+  if !s:is_minimum_version(v:null, 6, 0)
+    return ''
+  endif
+  let entry_point = glob(global_modules . '/neovim/bin/cli.js')
+  if !filereadable(entry_point)
+    return ''
+  endif
+  return entry_point
 endfunction
 
-function! provider#node#Prog()
+function! provider#node#Prog() abort
   return s:prog
 endfunction
 
@@ -69,7 +87,7 @@ function! provider#node#Require(host) abort
   throw remote#host#LoadErrorForHost(a:host.orig_name, '$NVIM_NODE_LOG_FILE')
 endfunction
 
-function! provider#node#Call(method, args)
+function! provider#node#Call(method, args) abort
   if s:err != ''
     echoerr s:err
     return

runtime/autoload/provider/python.vim

@@ -11,11 +11,11 @@ let g:loaded_python_provider = 1
 
 let [s:prog, s:err] = provider#pythonx#Detect(2)
 
-function! provider#python#Prog()
+function! provider#python#Prog() abort
   return s:prog
 endfunction
 
-function! provider#python#Error()
+function! provider#python#Error() abort
   return s:err
 endfunction
 
@@ -29,7 +29,7 @@ endif
 call remote#host#RegisterClone('legacy-python-provider', 'python')
 call remote#host#RegisterPlugin('legacy-python-provider', 'script_host.py', [])
 
-function! provider#python#Call(method, args)
+function! provider#python#Call(method, args) abort
   if s:err != ''
     return
   endif

runtime/autoload/provider/python3.vim

@@ -11,11 +11,11 @@ let g:loaded_python3_provider = 1
 
 let [s:prog, s:err] = provider#pythonx#Detect(3)
 
-function! provider#python3#Prog()
+function! provider#python3#Prog() abort
   return s:prog
 endfunction
 
-function! provider#python3#Error()
+function! provider#python3#Error() abort
   return s:err
 endfunction
 
@@ -29,7 +29,7 @@ endif
 call remote#host#RegisterClone('legacy-python3-provider', 'python3')
 call remote#host#RegisterPlugin('legacy-python3-provider', 'script_host.py', [])
 
-function! provider#python3#Call(method, args)
+function! provider#python3#Call(method, args) abort
   if s:err != ''
     return
   endif

runtime/autoload/provider/ruby.vim

@@ -7,7 +7,7 @@ let g:loaded_ruby_provider = 1
 let s:stderr = {}
 let s:job_opts = {'rpc': v:true}
 
-function! s:job_opts.on_stderr(chan_id, data, event)
+function! s:job_opts.on_stderr(chan_id, data, event) abort
   let stderr = get(s:stderr, a:chan_id, [''])
   let last = remove(stderr, -1)
   let a:data[0] = last.a:data[0]
@@ -23,7 +23,7 @@ function! provider#ruby#Detect() abort
   end
 endfunction
 
-function! provider#ruby#Prog()
+function! provider#ruby#Prog() abort
   return s:prog
 endfunction
 
@@ -50,7 +50,7 @@ function! provider#ruby#Require(host) abort
   throw remote#host#LoadErrorForHost(a:host.orig_name, '$NVIM_RUBY_LOG_FILE')
 endfunction
 
-function! provider#ruby#Call(method, args)
+function! provider#ruby#Call(method, args) abort
   if s:err != ''
     echoerr s:err
     return

test/functional/provider/nodejs_spec.lua

@@ -9,9 +9,7 @@ local retry = helpers.retry
 do
   clear()
   if missing_provider('node') then
-    pending(
-      "Cannot find the neovim nodejs host. Try :checkhealth",
-      function() end)
+    pending("Missing nodejs host, or nodejs version is too old.", function()end)
     return
   end
 end

test/functional/provider/ruby_spec.lua

@@ -15,9 +15,7 @@ local missing_provider = helpers.missing_provider
 do
   clear()
   if missing_provider('ruby') then
-    pending(
-      "Cannot find the neovim RubyGem. Try :checkhealth",
-      function() end)
+    pending("Missing neovim RubyGem.", function() end)
     return
   end
 end