Deoplete.nvim: Single 'd' deletes the line under cursor

[h0tbird]

Problems summary

I am a new user. The behavior described below happens after enabling deoplete:
In normal mode (after insert) dd is not working as expected.
A single d will delete the line under the cursor.

Expected

I expect the line to be deleted after I type dd.

Environment Information

• deoplete version(SHA1):

[vim@arch deoplete.nvim]$ git rev-parse HEAD
be8d03e547c5bbc00b93c453b04a64a767baba3f

• OS:

[vim@arch deoplete.nvim]$ cat /etc/os-release 
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
ID_LIKE=archlinux
ANSI_COLOR="0;36"
HOME_URL="https://www.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://bugs.archlinux.org/"

• neovim version:

[vim@arch deoplete.nvim]$ nvim --version
NVIM 0.1.7
Build type: Release
Compilation: /usr/bin/cc -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -Wconversion -O2 -DNDEBUG -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/build/neovim/src/build/config -I/build/neovim/src/neovim-0.1.7/src -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/build/neovim/src/build/src/nvim/auto -I/build/neovim/src/build/include
Compiled by builduser

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+):

health#deoplete#check
========================================================================
## deoplete.nvim
  - SUCCESS: has("nvim") was successful
  - SUCCESS: 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
  - SUCCESS: no issues found

## Performance
  - SUCCESS: Build type: Release

## Remote Plugins
  - SUCCESS: Up to date

## terminfo
  - INFO: key_backspace terminfo entry: key_backspace=\177,

health#provider#check
========================================================================
## Clipboard
  - WARNING: No clipboard tool found. Using the system clipboard won't work.
    - SUGGESTIONS:
      - See clipboard.

## 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
  - SUCCESS: Found up-to-date neovim RubyGem
  - INFO: Ruby Version: ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-linux]
  - INFO: Host Executable: /home/vim/.gem/ruby/2.4.0/bin/neovim-ruby-host
  - INFO: Host Version: 0.3.3

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

call plug#begin('~/.local/share/nvim/plugged')
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
call plug#end()

let g:deoplete#enable_at_startup = 1

The reproduce ways from neovim starting (Required!)

1. Edit a multi-line file.
2. Enter insert mode.
3. Enter normal mode.
4. Delete one line by typing a single d.

[n8henrie]

I have been debugging what I think is the same issue since yesterday. For me, I noticed that replacing a word with ciw stopped working, and afterwards a single c clears the entire line. I can also reproduce the behavior described above with d.

I noticed the bug was not there when I checked out tag 2.0, so I ran a quick git bisect, which shows:

df577eeaab20f5cc63dd8e7f0e8e46833766b8d1 is the first bad commit

df577eeaab20f5cc63dd8e7f0e8e46833766b8d1

[h0tbird]

Right! tags/2.0 works for me too.

[PrestonKnopp]

I am also experiencing this issue, so far only after Ctrl-c from insert to normal mode. I know that Ctrl-c does not emit the InsertLeave event which might be messing something up.

Also, I did a clean install two days ago and Deoplete was definitely working before then.

[Shougo]

I cannot reproduce the problem in neovim 0.2.0.
I think you use neovim 0.1.7.
Please try neovim latest version.

[Shougo]

I am also experiencing this issue, so far only after Ctrl-c from insert to normal mode. I know that Ctrl-c does not emit the InsertLeave event which might be messing something up.

OK. I get it.
Please don't use <C-c> to restore to the normal mode.

[n8henrie]

It looks like 0.1.7 is still the latest release and 0.2.0 is still pre-release.

[Shougo]

I have fixed the problem. But... please don't use <C-c> in insert mode.
It does not trigger InsertLeave autocommand.

[PrestonKnopp]

Okay cool. Thanks Shougo!

Oh, and I'm trying not to. Currently retraining my hands to use <C-[>.

[n8henrie]

I have fixed the problem.

It looks like 9a3c2ec8b464bcd4e840c565c45f2d67464c2eed did indeed fix the problem, but it has been reintroduced by the very next commit, bda6d16700d8d728ebd5d422d4936a5977c40273 (according to another git bisect).

[h0tbird]

So it won't work if we use <C-c>?

[Shougo]

So it won't work if we use <C-c>?

It breaks some plugins state.
You should not use the mapping.

[shri3k]

It breaks some plugins state.
You should not use the mapping.

I understand the limitation but this is kind of deal breaker. 😞

[Shougo]

You can use the mapping.

inoremap <C-c>  <Esc>

It works.

[shri3k]

heh. of course but it'd definitely confuse people who's trying to use my vim config for sure.

[n8henrie]

@shri3k Shouldn't confuse them too much, just add a comment: https://github.com/n8henrie/.vim/blob/3e32355bf04b97188909eeec38cc604cab0cf769/nvim.vim#L34

[garethellis0]

I am still seeing the same behavior (a single d in normal mode will delete the entire line), while using YouCompleteMe, even after removing my mapping for <C-c>. Disabling the plugin fixes the issue. I'm using NVIM v0.2.0 on Arch Linux. :cry:

[Shougo]

I am still seeing the same behavior (a single d in normal mode will delete the entire line), while using YouCompleteMe

while using YouCompleteMe?
This is deoplete issue.
I don't understand.

[garethellis0]

Sorry, this seemed like a similar issue, so I elected to add a comment here rather then open a new issue. Would you like me to open a new issue for it? Or would you like more details?

[Shougo]

You should create new issue.
Because the problem is already fixed.
Please see the issue template.

[Shougo]

I am still seeing the same behavior (a single d in normal mode will delete the entire line), while using YouCompleteMe, even after removing my mapping for

Note: You must not exit insert mode by <C-c>.

And you must explain how to exit the insert mode.
This issue is terrible information. Because it does not explain how to exit. Just Enter normal mode.

[garethellis0]

Sorry, completely my fault. I commented on the wrong github repo.

[Shougo]

Hm. If YouCompleteMe uses timers feature, it has the same problem.
You should not use <C-c>.