Hi, users.

I will create new completion plugin for neovim. It is deoplete.nvim (Dark powered nEO comPLETE).

if_python3 plugins are supported in neovim. So, it is time to development.

I will release first alpha version of deolpete.nvim in May. But it is not useful plugin. It is just concept.

I will create "buffer" source in first.

And I will backport some completion patches in Vim to neovim. This is needed for deoplete asynchronous.

Different sources have different speeds. Some are very fast - like "buffer" and "around", some may take many seconds to gather candidates from, e.g. "tag" source. Can we show the completion candidates as they become avaliable from the source? I.e. when I start typing, I should instantly get completions from "buffer" and "around", and if I'm willing to wait for so many seconds - the candidates from "tag" would appear and the candidates list will be dynamically redrawn.

~~I have added the test code for nvim-yarp.~~ ~~But it is freezed. Why?~~

@roxma

More Vim8 testers are needed. Especially, Windows users.

Fix #339

Requirements:

https://github.com/roxma/nvim-yarp

https://github.com/roxma/vim-hug-neovim-rpc For Vim8

deoplete.log

log_py3_neovim_rpc_server.log

log_py3_deoplete.log Warning: I will close the issue without the minimal init.vim and the reproduce ways.

Problems summary

It takes about 5 seconds for the deoplete window to appear on a minimal .vimrc test on a 16G MacBook pro with vim8 (macvim). Here's a video showing the problem:

Expected

deoplete window appears almost instantly

Environment Information

• deoplete version(SHA1): 6924385c96fe606cf588467d418df3d2f1c364ef plugin/deoplete.vim (I installed it last night so this should be current)

• OS: OSX Sierra 10.12.6

• neovim/Vim version: MacVim version 8.0.1376

• :checkhealth or :CheckHealth result(neovim only):

Provide a minimal init.vim/vimrc with less than 50 lines (Required!)

set pythonthreedll=/usr/local/Cellar/python3/3.6.3/Frameworks/Python.framework/Versions/3.6/Python
set rubydll=/usr/local/Cellar/ruby/2.4.2_1/lib/libruby.2.4.dylib
set luadll=/usr/local/Cellar/lua/5.3.4_2/lib/liblua.dylib

set rtp+=~/.vim/bundle/vim-hug-neovim-rpc/
set rtp+=~/.vim/bundle/nvim-yarp/
set rtp+=~/.vim/bundle/deoplete.nvim/
let g:deoplete#enable_at_startup = 1
let g:deoplete#enable_yarp = 1
let g:deoplete#enable_profile = 1
call deoplete#enable_logging('DEBUG', 'deoplete.log')

The reproduce ways from neovim/Vim starting (Required!)

1. mvim
2. :e .vimrc
3. Type rt, wait for deoplete window with rtp suggestions to appear (5 seconds), select one, hit enter, the quit.

Generate a logfile if appropriate

1. export NVIM_PYTHON_LOG_FILE=/tmp/log
2. export NVIM_PYTHON_LOG_LEVEL=DEBUG
3. nvim -u minimal.vimrc
4. some works
5. cat /tmp/log_{PID}

Screen shot (if possible)

See video above

Upload the log file

Log files and both /tmp/log files are attached.

Warning: I will close the issue without the minimal init.vim and the reproduction instructions.

Problems summary

Crazy CPU usage

Expected

Should not be excessive

Environment Information

• deoplete version(SHA1): c5f8165
• OS: OSX
• neovim/Vim version: Vim 8
• :checkhealth or :CheckHealth result(neovim only):

Provide a minimal init.vim/vimrc with less than 50 lines (Required!)

" Your minimal init.vim/vimrc
inoremap <expr><tab> pumvisible() ? "\<c-n>" : "\<tab>"

set completeopt+=noselect

"close the preview window after completion is done.
autocmd CompleteDone * pclose!

" enable deoplete
let g:deoplete#enable_at_startup = 1

" deoplete-go
let g:deoplete#sources#go#gocode_binary = $GOPATH.'/bin/gocode'
let g:deoplete#sources#go#sort_class = ['package', 'func', 'type', 'var', 'const']

The reproduce ways from neovim/Vim starting (Required!)

1. Open Vim
2. Do anything
3. htop

Screen shot (if possible)

Seems to be exactly as in #440, but the problem is back.

Note this only seems to be in master, it seems fine in 5.1. Unfortunately I am still using Vundle which always pulls master.

I'm trying to recreate my current Vim setup in Neovim

In vim I'm using Neocomplete with these settings

    let g:neocomplete#enable_at_startup = 1
    let g:neocomplete#enable_smart_case = 1
    let g:neocomplete#sources#syntax#min_keyword_length = 3
    let g:neocomplete#auto_completion_start_length = 1
    let g:neocomplete#sources#buffer#cache_limit_size = 50000
    let g:neocomplete#data_directory = $HOME.'/.vim/cache/noecompl'
    let g:neocomplete#sources#syntax#min_keyword_length = 3
    let g:neocomplete#force_omni_input_patterns = get(g:, 'neocomplete#force_omni_input_patterns', {})
    let g:neocomplete#force_omni_input_patterns.javascript = '[^. \t]\.\w*'
    " Tab completion.
    inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"

and in Neovim I have this right now

    let g:deoplete#enable_at_startup = 1
    let g:deoplete#auto_completion_start_length = 1
    let g:deoplete#enable_smart_case = 1
    let g:deoplete#enable_auto_close_preview = 1
    let g:deoplete#data_directory = $HOME.'.vim/cache/deoplete'
    let g:deoplete#force_omni_input_patterns = get(g:, 'deoplete#force_omni_input_patterns', {})
    let g:deoplete#force_omni_input_patterns.javascript = '[^. \t]\.\w*'
    inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"

1. The autocomplete popup doesn't show automatically while typing in deoplete unlike neocomplete.
2. How can use TAB to match the behaviour of neocomplete?

Warning: I will close the issue without the minimal init.vim and the reproduction instructions.

Problems summary

I compared deoplete with ncm. In ncm, if a source is slow, it will not impact the completion menu show up time. But in ncm, if a source is slow, it will impact the completion menu show up time.

Expected

If some source is slow, the faster source should show in completion menu first.

Environment Information

• deoplete version(SHA1): c145a7fea45850f5e19151f9748a0dc8e8e92329

• OS: windows 10

• neovim/Vim version: NVIM 0.2.2

• :checkhealth or :CheckHealth result(neovim only):

health#deoplete#check
========================================================================
## deoplete.nvim
  - OK: has("nvim") was successful
  - OK: has("python3") was successful
  - INFO: If you're still having problems, try the following commands:
    $ export NVIM_PYTHON_LOG_FILE=/tmp/log
    $ export NVIM_PYTHON_LOG_LEVEL=DEBUG
    $ nvim
    $ cat /tmp/log_{PID}
    and then create an issue on github

health#nvim#check
========================================================================
## Configuration
  - OK: no issues found

## Performance
  - OK: Build type: RelWithDebInfo

## Remote Plugins
  - OK: Up to date

health#provider#check
========================================================================
## Clipboard (optional)
  - OK: Clipboard tool found: win32yank

## Python 2 provider (optional)
  - WARNING: No Python interpreter was found with the neovim module.  Using the first available for diagnostics.
  - WARNING: provider/pythonx: Could not load Python 2:
    python2 not found in search path or not executable.
    python2.7 not found in search path or not executable.
    python2.6 not found in search path or not executable.
    C:\Users\jia.sui\AppData\Local\Programs\Python\Python36\python is Python 3.6 and cannot provide Python 2.
  - ERROR: Python provider error
    - ADVICE:
      - provider/pythonx: Could not load Python 2:
          python2 not found in search path or not executable.
          python2.7 not found in search path or not executable.
          python2.6 not found in search path or not executable.
          C:\Users\jia.sui\AppData\Local\Programs\Python\Python36\python is Python 3.6 and cannot provide Python 2.
  - INFO: Executable: Not found

## Python 3 provider (optional)
  - INFO: Using: g:python3_host_prog = "C:/Users/jia.sui/AppData/Local/Programs/Python/Python36/python.exe"
  - INFO: Executable: C:/Users/jia.sui/AppData/Local/Programs/Python/Python36/python.exe
  - INFO: Python3 version: 3.6.4
  - INFO: python.exe-neovim version: 0.2.1
  - OK: Latest python.exe-neovim is installed: 0.2.1

## Ruby provider (optional)
  - WARNING: `ruby` and `gem` must be in $PATH.
    - ADVICE:
      - Install Ruby and verify that `ruby` and `gem` commands work.

## Node provider (optional)
  - INFO: Node: v8.9.0
  - WARNING: Missing "neovim" npm package.
    - ADVICE:
      - Run in shell: npm install -g neovim
      - Is the npm bin directory in $PATH?

Provide a minimal init.vim/vimrc with less than 50 lines (Required!)

let s:rc_path = fnamemodify(expand('<sfile>'), ':h')

let s:vimplug = expand(s:rc_path . '/autoload')

if empty(glob(s:vimplug . '/plug.vim'))
  execute '!git clone --depth=1 https://github.com/junegunn/vim-plug' s:vimplug
  augroup vimrc
    autocmd VimEnter * PlugInstall
  augroup END
endif

call plug#begin(s:rc_path . '/plugged')

"Completion
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }

call plug#end()

"deoplete.nvim
if (has('nvim') || v:version >= 800) && has('python3')
  let g:deoplete#enable_at_startup = 1
  let g:deoplete#num_processes = 20
endif

The reproduce ways from neovim/Vim starting (Required!)

1. Add a time.sleep(10) in gather_candidates() tag.py

diff --git a/rplugin/python3/deoplete/source/tag.py b/rplugin/python3/deoplete/source/tag.py
index 1dcec7f..7a32695 100644
--- a/rplugin/python3/deoplete/source/tag.py
+++ b/rplugin/python3/deoplete/source/tag.py
@@ -33,6 +33,8 @@ class Source(Base):
       self._make_cache(context)

   def gather_candidates(self, context):
+        import time
+        time.sleep(10)
       self._make_cache(context)
       candidates = []
       for c in self._cache.values():

2. Add
3. Open any files, then type something
4. The completion window will show up after 10s

Screen shot (if possible)

Upload the log file

deoplete.log

When auto_complete is false then first time completion is triggered with only A and B sources are shown, no candidates from LSP. Second time completion is triggered with all sources' candidates are shown. When auto_complete is true it works as expected, all sources' candidates are shown. But I do not want auto complete turn on, I want to trigger completion when I want. It used to work correctly week ago.

call deoplete#custom#option({
    \ 'auto_complete': v:false,
    \ })
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ deoplete#manual_complete()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"

if executable('ccls')
   au User lsp_setup call lsp#register_server({
      \ 'name': 'ccls',
      \ 'cmd': {server_info->['ccls']},
      \ 'root_uri': {server_info->lsp#utils#path_to_uri(lsp#utils#find_nearest_parent_file_directory(lsp#utils#get_buffer_path(), 'compile_commands.json'))},
      \ 'initialization_options': {},
      \ 'whitelist': ['c', 'cpp', 'objc', 'objcpp', 'cc'],
      \ })
endif

vimrc:

set rtp+=~/.vim/plugged/deoplete.nvim
call deoplete#enable()

foo.bar
foo.baz
foo.

Typing b after foo. will offer bar and baz (with "[M]") hint. Pressing Enter then will close the popup menu, and the cursor will stay there. But since by default completeopt+=noinsert gets used (and not 'noselect'), the cursor should move to the next line.

After typing ba followed by <Backspace> <Enter> will close the popup (leaving "foo.b"), and jump to the next line (as expected).

It seems like 'noselect' gets used by default, but if the user had 'noinsert' already, then Enter should probably select the first entry when pressing Enter?! (and this seems to work as expected)

It seems to be related to what eeda83b does, since that fixed an intermediate problem, where the popup would need two Enter presses before being closed even.

I am using Neovim master, let me know if you need more information, and/or cannot reproduce it.

Problems summary

after recent update I began to notice that sometimes, if I quickly enough print word - it will be completed automatically, without permission

The reproduce ways from neovim starting

init.vim, which I use in reproduction

" setup & dein {{{
  set rtp+=~/.config/nvim/bundle/repos/github.com/Shougo/dein.vim
  call dein#begin(expand('~/.config/nvim/bundle/'))
  call dein#add('Shougo/dein.vim')
"}}}

call dein#add('Shougo/deoplete.nvim') " {{{
  let g:deoplete#enable_at_startup = 1
" }}}

In command line rm -rf nvim/bundle nvim/.cache && git clone https://github.com/Shougo/dein.vim nvim/bundle/repos/github.com/Shougo/dein.vim

and video

As you see, if I type new quickly enough (skill is required :smile:), it paste first match automatically, I don`t remember such behavior in past

Environment Information

• deoplete version(SHA1): 7a9865ae3db5ebed3c5b96f48ed3d769a99c72cf (oh, I see in commit that you had changed auto_complete_delay)
• OS: archlinux
• neovim version:

 pacman -Qi neovim-git 
Name            : neovim-git
Version         : 0.1.7.r707.gd290c1342-1

NVIM v0.2.0-707-gd290c1342
Build type: RelWithDebInfo
Compilation: /usr/bin/cc -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -Wconversion -O2 -g -DDISABLE_LOG -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wvla -fstack-protector-strong -fdiagnostics-color=auto -DINCLUDE_GENERATED_DECLARATIONS -DHAVE_CONFIG_H -D_GNU_SOURCE -I/tmp/yaourt-tmp-bjorn/aur-neovim-git/src/neovim-git/build/config -I/tmp/yaourt-tmp-bjorn/aur-neovim-git/src/neovim-git/src -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/tmp/yaourt-tmp-bjorn/aur-neovim-git/src/neovim-git/build/src/nvim/auto -I/tmp/yaourt-tmp-bjorn/aur-neovim-git/src/neovim-git/build/include
Compiled by bjorn@machine

Optional features included (+) or not (-): +acl   +iconv    +jemalloc +tui      
For differences from Vim, see :help vim-differences

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/share/nvim"

• :CheckHealth result(neovim ver.0.1.5-452+):

## Configuration
  - SUCCESS: no issues found

## Performance
  - SUCCESS: Build type: RelWithDebInfo

## Remote Plugins
  - SUCCESS: Up to date

## terminal
  - INFO: key_backspace (kbs) terminfo entry: key_backspace=\177
  - INFO: key_dc (kdch1) terminfo entry: key_dc=\E[3~

health#provider#check
========================================================================
## Clipboard
  - SUCCESS: Clipboard tool found: xclip

## Python 2 provider
  - INFO: `g:python_host_prog` is not set.  Searching for python2 in the environment.
  - INFO: Executable: /usr/bin/python2
  - INFO: Python2 version: 2.7.13
  - INFO: python2-neovim version: 0.1.13
  - SUCCESS: Latest python2-neovim is installed: 0.1.13

## Python 3 provider
  - INFO: `g:python3_host_prog` is not set.  Searching for python3 in the environment.
  - INFO: Executable: /usr/bin/python3
  - INFO: Python3 version: 3.6.0
  - INFO: python3-neovim version: 0.1.13
  - SUCCESS: Latest python3-neovim is installed: 0.1.13

## Ruby provider
  - INFO: Ruby: ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-linux]
  - INFO: Host: /home/bjorn/.rvm/gems/ruby-2.4.0@rails-bookstore/bin/neovim-ruby-host
  - ERROR: Command timed out: gem list -ra ^neovim$
  - ERROR: Failed to run: gem list -ra ^neovim$
    - SUGGESTIONS:
      - Make sure you're connected to the internet.
      - Are you behind a firewall or proxy?