dotfiles/nvim/plugin/interface.vim

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" always show the sign column
set signcolumn=yes
" enable bell everywhere
set belloff=
" title {{{
set title
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let s:username = $USER
let s:hostname = substitute(hostname(), '\v^([^.]*).*$', '\1', '') " get hostname up to the first '.'
let &titlestring = $USER . '@' . s:hostname . ': %F%{&modified ? g:airline_symbols.modified : ""} (nvim)'
" }}}
" Yes, I occasionally use mouse. Sometimes it is handy for switching windows/buffers
set mouse=a
" <RightMouse> pops up a context menu
" <S-LeftMouse> extends a visual selection
set mousemodel=popup
" Maybe someday I'll use a Neovim GUI
if has('guifont')
let &guifont = 'Ubuntu Mono derivative Powerline:h14'
endif
" Buffers {{{
set hidden
" open diffs in vertical splits by default
set diffopt+=vertical
" buffer navigation {{{
noremap <silent> <Tab> <Cmd>bnext<CR>
noremap <silent> <S-Tab> <Cmd>bprev<CR>
noremap <silent> gb <Cmd>buffer#<CR>
" }}}
" ask for confirmation when closing unsaved buffers
set confirm
" Bbye with confirmation, or fancy buffer closer {{{
function s:CloseBuffer(cmd) abort
let l:cmd = a:cmd
if &modified
let l:answer = confirm("Save changes?", "&Yes\n&No\n&Cancel")
if l:answer is# 1 " Yes
write
elseif l:answer is# 2 " No
let l:cmd .= '!'
else " Cancel/Other
return
endif
endif
execute l:cmd
endfunction
" }}}
" closing buffers {{{
nnoremap <silent> <BS> <Cmd>call <SID>CloseBuffer('Bdelete')<CR>
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nnoremap <silent> <Del> <Cmd>call <SID>CloseBuffer('Bdelete')<bar>quit<CR>
" }}}
" }}}
" Windows {{{
" window navigation {{{
noremap <C-j> <C-w>j
noremap <C-k> <C-w>k
noremap <C-l> <C-w>l
noremap <C-h> <C-w>h
" }}}
" switch to previous window
noremap <C-\> <C-w>p
" don't automatically make all windows the same size
set noequalalways
" closing windows {{{
nnoremap <silent> <A-BS> <Cmd>quit<CR>
" }}}
" }}}
" Airline (statusline) {{{
let g:airline_theme = 'dotfiles'
let g:airline_symbols = {
\ 'readonly': 'RO',
\ 'whitespace': "\u21e5 ",
\ 'linenr': '',
\ 'maxlinenr': ' ',
\ 'branch': '',
\ 'notexists': " [?]",
\ }
let g:airline#extensions#branch#enabled = 1
let g:airline#extensions#tabline#enabled = 1
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let g:airline#extensions#coc#enabled = 0
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = ''
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let g:coc_status_error_sign = 'E:'
let g:coc_status_warning_sign = 'W:'
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call airline#parts#define('coc#status', { 'function': 'coc#status', 'accent': 'airline_term' })
function StatusLine_filesize()
let l:bytes = getfsize(expand('%'))
if l:bytes < 0 | return '' | endif
let l:factor = 1
for l:unit in ['B', 'K', 'M', 'G']
let l:next_factor = l:factor * 1024
if l:bytes < l:next_factor
let l:number_str = printf('%.2f', (l:bytes * 1.0) / l:factor)
" remove trailing zeros
let l:number_str = substitute(l:number_str, '\v\.?0+$', '', '')
return l:number_str . l:unit
endif
let l:factor = l:next_factor
endfor
endfunction
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call airline#parts#define('filesize', { 'function': 'StatusLine_filesize' })
function s:airline_section_prepend(section, items)
let g:airline_section_{a:section} = airline#section#create_right(a:items + ['']) . g:airline_section_{a:section}
endfunction
function s:airline_section_append(section, items)
let g:airline_section_{a:section} = g:airline_section_{a:section} . airline#section#create_left([''] + a:items)
endfunction
function s:tweak_airline()
if g:vim_ide
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call s:airline_section_prepend('x', ['coc#status'])
endif
call s:airline_section_append('y', ['filesize'])
endfunction
augroup vimrc-interface-airline
autocmd!
autocmd user AirlineAfterInit call s:tweak_airline()
augroup END
" }}}
" FZF {{{
nnoremap <silent> <F1> <Cmd>Helptags<CR>
nnoremap <silent> <leader>f <Cmd>Files<CR>
nnoremap <silent> <leader>b <Cmd>Buffers<CR>
" }}}
" quickfix/location list {{{
nmap [q <Plug>(qf_qf_previous)
nmap ]q <Plug>(qf_qf_next)
nmap [l <Plug>(qf_loc_previous)
nmap ]l <Plug>(qf_loc_next)
let g:qf_mapping_ack_style = 1
" }}}
" Terminal {{{
augroup vimrc-terminal
autocmd!
autocmd TermOpen * IndentLinesDisable
augroup END
" }}}
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nnoremap <silent> <F9> <Cmd>make<CR>