Add support for fs/readFile command

It seems to be working. I'm able to get readings for hover. I'm still
having some difficulty with some of the Goto definition items, but at
least it seems that I can read things and send the base64 encoding to
the server.

autoload/langserver/callbacks.vim

@@ -4,8 +4,6 @@ endfunction
 
 function! langserver#callbacks#on_stderr(id, data, event) abort
   call langserver#log#response(a:id, a:data, a:event)
-
-  echom string(a:data)
 endfunction
 
 function! langserver#callbacks#on_exit(id, status, event) abort
@@ -29,14 +27,12 @@ function! langserver#callbacks#on_notification(id, data, event) abort
         call langserver#hover#callback(a:id, a:data, a:event)
       elseif l:last_topic ==? 'textDocument/didOpen'
         call langserver#documents#callback_did_open(a:id, a:data, a:event)
+      elseif l:last_topic ==? 'initialize'
+        call langserver#initialize#callback(a:id, a:data, a:event)
       elseif l:last_topic ==? 'workspace/symbol'
         call langserver#symbol#workspace#callback(a:id, a:data, a:event)
       else
-        " if langserver#extension#command#callback(a:id, a:data, a:event)
-        "   call langserver#log#log('debug', 'Handled: ' . l:last_topic)
-        " else
-          call langserver#log#log('warning', 'LAST REQUEST: ' . l:last_topic, v:true)
-        " endif
+        call langserver#log#log('warning', 'No callback registered for: ' . l:last_topic, v:true)
       endif
     elseif has_key(a:data, 'request')
       echom 'notification...'

autoload/langserver/client.vim

@@ -146,6 +146,10 @@ function! s:lsp_send_request(id, opts) abort " opts = { method, params?, on_noti
             let l:msg.params = a:opts.params
         endif
 
+        if has_key(a:opts, 'result')
+            let l:msg.result = a:opts.result
+        endif
+
         let l:json = json_encode(l:msg)
         let l:req_data = 'Content-Length: ' . len(l:json) . "\r\n\r\n" . l:json
 

autoload/langserver/extension/command.vim

@@ -20,10 +20,9 @@ function! langserver#extension#command#callback(id, data, event) abort
 
   call langserver#client#send(a:id, {
         \ 'req_id': a:data.request.id,
-        \ 'method': 'fs/readFile',
-        \ 'params': {
-          \ 'result': l:response,
-          \ },
+        \ 'method': l:method,
+        \ 'params': a:data.request.params,
+        \ 'result': l:response,
         \ })
   return v:true
 endfunction

autoload/langserver/extension/fs.vim

@@ -7,5 +7,12 @@
 function! langserver#extension#fs#readFille(filename) abort
   echom a:filename
 
-  return join(readfile(a:filename), "\n")
+  " let l:text = join(readfile(a:filename), "\n")
+  " echo system(['base64', join(readfile('/home/tj/test/lsp.py'), "\n")])
+  if filereadable(a:filename)
+    return system(['base64', a:filename])
+  else
+    call langserver#log#log('error', 'Unable to read file: ' . a:filename)
+    return ''
+  endif
 endfunction

autoload/langserver/goto.vim

@@ -8,8 +8,14 @@ function! langserver#goto#callback(id, data, event) abort
   if has_key(a:data, 'response')
     if type(a:data['response']['result']) == type([])
       let l:parsed_data = a:data['response']['result'][0]
-    else
-      let l:parsed_data = a:data['response']['result']
+    elseif type(a:data['response']['result']) == type({})
+      " Check if we have an empty dictionary
+      if empty(a:data['response']['result'])
+        call langserver#log#log('warning', 'No definition found for: ' . string(a:data['request']), v:true)
+        return
+      else
+        let l:parsed_data = a:data['response']['result']
+      endif
     endif
   else
     return

autoload/langserver/initialize.vim

@@ -30,6 +30,12 @@ function! langserver#initialize#get_client_capabilities() abort
   return {}
 endfunction
 
+function! langserver#initialize#callback(id, data, event) abort
+  call langserver#initialize#response(a:id, a:data.response.result)
+
+  call langserver#log#log('info', 'Succesfully connected to: ' . string(a:id), v:true)
+endfunction
+
 ""
 " Handle the response of the server.
 " This message details the capabilities of the language server.
@@ -47,7 +53,7 @@ function! langserver#initialize#response(name, response) abort
 
   if has_key(a:response, 'completionProvider')
     let l:complete_opt_resolve = get(a:response['completionProvider'], 'resolveProvider', v:false)
-    let l:complete_opt_trigger = get(a:resposne['completionProvider'], 'triggerCharacters', [])
+    let l:complete_opt_trigger = get(a:response['completionProvider'], 'triggerCharacters', [])
     call langserver#capabilities#set_completion_provider(a:name, l:complete_opt_resolve, l:complete_opt_trigger)
   endif
 

autoload/langserver/log.vim

@@ -112,7 +112,9 @@ function! langserver#log#callback(id, data, event) abort
                \ a:id,
                \ a:event,
                \ string(a:data)
-               \))
+               \ ),
+            \ v:false
+            \ )
 endfunction
 
 ""