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health: check if tmux enabled true colors (#9929)

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References https://github.com/neovim/neovim/issues/7764
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Marco Hinz 2019-04-20 19:02:19 +02:00 committed by GitHub
parent 3f71218505
commit 43356a43d0
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1 changed files with 11 additions and 0 deletions
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11
runtime/autoload/health/nvim.vim
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@ -170,6 +170,17 @@ function! s:check_tmux() abort
\ ["Set default-terminal in ~/.tmux.conf:\nset-option -g default-terminal \"screen-256color\"",
\ s:suggest_faq])
endif
" check for RGB capabilities
let info = system('tmux server-info')
let has_tc = stridx(info, " Tc: (flag) true") != -1
let has_rgb = stridx(info, " RGB: (flag) true") != -1
if !has_tc && !has_rgb
call health#report_warn(
\ "Neither Tc nor RGB capability set. True colors are disabled. |'termguicolors'| won't work properly.",
\ ["Put this in your ~/.tmux.conf and replace XXX by your $TERM outside of tmux:\nset-option -sa terminal-overrides ',XXX:RGB'",
\ "For older tmux versions use this instead:\nset-option -ga terminal-overrides ',XXX:Tc'"])
endif
endfunction
function! s:check_terminal() abort