Detect nyaovim with has command

[techhazard]

I would like to be able to detect if nyaovim is running or not so I can load plugins conditionally.
E.g. withhas('nyaovim') just like has('nvim') and has('python')

Expected Behavior

running nyaovim: :echo has('nyaovim') -> 1
running gui or terminal: :echo has('nyaovim') -> 0

Actual Behavior

running nyaovim: :echo has('nyaovim') -> 0
running gui or terminal: :echo has('nyaovim') -> 0

Steps to Reproduce (including precondition)

1. Start nyaovim
2. run the following command: :echo has('nyaovim')
3. output should return 0 (I would have expected 1)

Screenshot on This Problem (if possible)

I do not think that is neccessary

Your Environment

• OS: OSX
• NyaoVim version: 0.0.22
• nvim version: 0.1.7
• Keyboard layout: programmer-dvorak

[rhysd]

has() is a built-in function. So we can't change it's behavior. Instead, we can check if g:nyaovim_version variable exists or not.

if exists('g:nyaovim_version')
  " Code for NyaoVim
endif

The variable is set in command line argument: https://github.com/rhysd/NyaoVim/blob/master/renderer/nyaovim-app.ts#L253

[techhazard]

That would work. Sadly it doesn't for me. :echo exists('g:nyaovim_version') returns 0 :-(
I do not have to use that command line argument manually, right?

[rhysd]

Hmm... I don't have any idea why the variable does not exist.

You don't need to set the command line argument manually. It is automatically set by NyaoVim.

[techhazard]

Anything I can do to debug the issue?

NyaoVim version 0.0.22
  electron : 1.4.13
  chrome : 53.0.2785.143
  node : 6.5.0
  v8 : 5.3.332.47

NVIM 0.1.7
Build type: Release
Compilation: /nix/store/yxg0zzcyjndcp6ilixv8wc50sg89b5r3-clang-wrapper-4.0.0/bin/clang -Wconversion -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -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 -I/private/var/tmp/nix-build-neovim-0.1.7.drv-0/neovim-v0.1.7-src/build/config -I/private/var/tmp/nix-build-neovim-0.1.7.drv-0/neovim-v0.1.7-src/src -I/nix/store/lgprhs9d1bi8s9y06ccfmg1nksn4wbdm-libuv-1.11.0/include -I/nix/store/iinrspsbs43lwrcjgs52wgsjw10vxclv-libmsgpack-2.0.0/include -I/nix/store/8gjpvb1my8iczkinsqd7zmbidf0w0xn9-unibilium-1.2.0/include -I/nix/store/7skb10mc11rclwzni6798agb00d0rxsi-libtermkey-0.19/include -I/nix/store/xj64af8sfrlyggvl63z0byj2b7ng17d3-neovim-libvterm-2016-10-07/include -I/nix/store/i6smd9fqcp1wk4ihgypp3zflqqicvkfb-jemalloc-4.5.0/include -I/nix/store/410ya8c9f25n9vpqhb4n05891hq9nr1d-gettext-0.19.8/include -I/private/var/tmp/nix-build-neovim-0.1.7.drv-0/neovim-v0.1.7-src/build/src/nvim/auto -I/private/var/tmp/nix-build-neovim-0.1.7.drv-0/neovim-v0.1.7-src/build/include
Compiled by nixbld4

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: "
/nix/store/aznha3w0mdsv46mg42kn4zz04ifh0aiw-neovim-0.1.7/share/nvim"

[rhysd]

Thank you for your information and offer. But I need to try to reproduce at first with the latest neovim.

[bimlas]

Same issue here: on Linux it's exists, while on Windows it isn't.

Linux (Ubuntu 16.04 LTS "Xenial Xerus" x64)

• Neovim 0.2.1-dev
• NyaoVim 0.0.22
• Node 4.2.6

Windows 7 x64

• Neovim 0.2.1.190
• NyaoVim 0.0.22
• Node 6.9.5