breaking: remove lightline plugin + add custom statusline

remove `lightline` plugin from init.vim
add statusline.vim to configure the statusline
    -> change whether window is focus or not

.config/nvim/colors/polyjuice.vim

@@ -4,7 +4,7 @@
 " Maintainer:   David JULIEN <swy7ch@protonmail.com>
 " Website:      https://github.com/vim/vim/blob/master/src/syntax.c
 " License:      Vim License (see `:help license`)
-" Last Updated: Thu 07 May 2020 12:50:21 PM CEST
+" Last Updated: Fri 08 May 2020 12:15:14 PM CEST
 
 " Generated by Colortemplate v2.0.0
 
@@ -74,6 +74,8 @@ if (has('termguicolors') && &termguicolors) || has('gui_running')
   hi DiffDelete guifg=#1d2021 guibg=#b73935 guisp=NONE gui=bold cterm=bold
   hi DiffText guifg=#1d2021 guibg=#ea6962 guisp=NONE gui=bold cterm=bold
   hi Directory guifg=#d3869b guibg=NONE guisp=NONE gui=NONE cterm=NONE
+  hi File guifg=#d3869b guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
+  hi FileType guifg=#7cafa3 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
   hi ErrorMsg guifg=#ffeca3 guibg=#b73935 guisp=NONE gui=bold cterm=bold
   hi FoldColumn guifg=#f7a583 guibg=#458588 guisp=NONE gui=NONE cterm=NONE
   hi Folded guifg=#f7a583 guibg=#458588 guisp=NONE gui=NONE cterm=NONE
@@ -89,6 +91,8 @@ if (has('termguicolors') && &termguicolors) || has('gui_running')
   hi Search guifg=#1d2021 guibg=#f7a583 guisp=NONE gui=NONE cterm=NONE
   hi SignColumn guifg=NONE guibg=NONE guisp=NONE gui=NONE ctermfg=NONE ctermbg=NONE cterm=NONE
   hi SpecialKey guifg=#ace5d7 guibg=NONE guisp=NONE gui=NONE cterm=NONE
+  hi Mode guifg=#1d2021 guibg=#89b594 guisp=NONE gui=bold cterm=bold
+  hi Column guifg=#7cafa3 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
   hi StatusLine guifg=#ebdbb2 guibg=#7c6f64 guisp=NONE gui=NONE cterm=NONE
   hi StatusLineNC guifg=#ebdbb2 guibg=#1d2021 guisp=NONE gui=reverse cterm=reverse
   hi TabLineFill guifg=NONE guibg=NONE guisp=NONE gui=NONE ctermfg=NONE ctermbg=NONE cterm=NONE
@@ -112,6 +116,19 @@ if (has('termguicolors') && &termguicolors) || has('gui_running')
   hi! link lCursor Cursor
   hi ToolbarLine guifg=NONE guibg=#a89984 guisp=NONE gui=NONE cterm=NONE
   hi ToolbarButton guifg=#1d2021 guibg=#a89984 guisp=NONE gui=bold cterm=bold
+  hi StatusLine guifg=NONE guibg=NONE guisp=NONE gui=NONE ctermfg=NONE ctermbg=NONE cterm=NONE
+  hi StatusLineTerm guifg=#1d2021 guibg=#89b594 guisp=NONE gui=bold cterm=bold
+  hi StatusLineNC guifg=#7c6f64 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
+  hi Buffer guifg=#89b594 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
+  hi NormalMode guifg=#1d2021 guibg=#89b594 guisp=NONE gui=bold cterm=bold
+  hi VisualMode guifg=#1d2021 guibg=#d3869b guisp=NONE gui=bold cterm=bold
+  hi InsertMode guifg=#1d2021 guibg=#ace5d7 guisp=NONE gui=bold cterm=bold
+  hi ReplaceMode guifg=#1d2021 guibg=#ea6962 guisp=NONE gui=bold cterm=bold
+  hi CommandMode guifg=#ebdbb2 guibg=#1d2021 guisp=NONE gui=bold cterm=bold
+  hi File guifg=#d3869b guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
+  hi FileType guifg=#7cafa3 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
+  hi Percent guifg=#7c6f64 guibg=NONE guisp=NONE gui=NONE cterm=NONE
+  hi Column guifg=#7cafa3 guibg=#1d2021 guisp=NONE gui=NONE cterm=NONE
   unlet s:t_Co
   finish
 endif
@@ -140,6 +157,8 @@ if s:t_Co >= 256
   hi DiffDelete ctermbg=160 cterm=NONE
   hi DiffText ctermbg=203 cterm=bold
   hi Directory ctermfg=181 ctermbg=NONE cterm=NONE
+  hi File ctermfg=181 cterm=NONE
+  hi FileType ctermfg=30 cterm=NONE
   hi ErrorMsg ctermfg=230 ctermbg=160 cterm=bold
   hi FoldColumn ctermfg=216 ctermbg=24 cterm=NONE
   hi Folded ctermfg=216 ctermbg=24 cterm=NONE
@@ -155,6 +174,8 @@ if s:t_Co >= 256
   hi Search ctermbg=216 cterm=NONE
   hi SignColumn ctermfg=NONE ctermbg=NONE cterm=NONE
   hi SpecialKey ctermfg=81 ctermbg=NONE cterm=NONE
+  hi Mode ctermbg=71 cterm=bold
+  hi Column ctermfg=30 cterm=NONE
   hi StatusLine ctermfg=229 ctermbg=243 cterm=NONE
   hi StatusLineNC ctermfg=229 cterm=reverse
   hi TabLineFill ctermfg=NONE ctermbg=NONE cterm=NONE
@@ -178,6 +199,19 @@ if s:t_Co >= 256
   hi! link lCursor Cursor
   hi ToolbarLine ctermfg=NONE ctermbg=239 cterm=NONE
   hi ToolbarButton ctermbg=239 cterm=bold
+  hi StatusLine ctermfg=NONE ctermbg=NONE cterm=NONE
+  hi StatusLineTerm ctermbg=71 cterm=bold
+  hi StatusLineNC ctermfg=243 cterm=NONE
+  hi Buffer ctermfg=71 cterm=NONE
+  hi NormalMode ctermbg=71 cterm=bold
+  hi VisualMode ctermbg=181 cterm=bold
+  hi InsertMode ctermbg=81 cterm=bold
+  hi ReplaceMode ctermbg=203 cterm=bold
+  hi CommandMode ctermfg=229 cterm=bold
+  hi File ctermfg=181 cterm=NONE
+  hi FileType ctermfg=30 cterm=NONE
+  hi Percent ctermfg=243 ctermbg=NONE cterm=NONE
+  hi Column ctermfg=30 cterm=NONE
   unlet s:t_Co
   finish
 endif
@@ -206,6 +240,8 @@ if s:t_Co >= 8
   hi DiffDelete ctermfg=Black ctermbg=DarkRed cterm=NONE
   hi DiffText ctermfg=Black ctermbg=Red cterm=bold
   hi Directory ctermfg=Magenta ctermbg=NONE cterm=NONE
+  hi File ctermfg=Magenta ctermbg=Black cterm=NONE
+  hi FileType ctermfg=DarkCyan ctermbg=Black cterm=NONE
   hi ErrorMsg ctermfg=White ctermbg=DarkRed cterm=bold
   hi FoldColumn ctermfg=LightRed ctermbg=DarkBlue cterm=NONE
   hi Folded ctermfg=LightRed ctermbg=DarkBlue cterm=NONE
@@ -221,6 +257,8 @@ if s:t_Co >= 8
   hi Search ctermfg=Black ctermbg=LightRed cterm=NONE
   hi SignColumn ctermfg=NONE ctermbg=NONE cterm=NONE
   hi SpecialKey ctermfg=LightBlue ctermbg=NONE cterm=NONE
+  hi Mode ctermfg=Black ctermbg=Green cterm=bold
+  hi Column ctermfg=DarkCyan ctermbg=Black cterm=NONE
   hi StatusLine ctermfg=LightYellow ctermbg=Grey cterm=NONE
   hi StatusLineNC ctermfg=LightYellow ctermbg=Black cterm=reverse
   hi TabLineFill ctermfg=NONE ctermbg=NONE cterm=NONE
@@ -244,6 +282,19 @@ if s:t_Co >= 8
   hi! link lCursor Cursor
   hi ToolbarLine ctermfg=NONE ctermbg=DarkGrey cterm=NONE
   hi ToolbarButton ctermfg=Black ctermbg=DarkGrey cterm=bold
+  hi StatusLine ctermfg=NONE ctermbg=NONE cterm=NONE
+  hi StatusLineTerm ctermfg=Black ctermbg=Green cterm=bold
+  hi StatusLineNC ctermfg=Grey ctermbg=Black cterm=NONE
+  hi Buffer ctermfg=Green ctermbg=Black cterm=NONE
+  hi NormalMode ctermfg=Black ctermbg=Green cterm=bold
+  hi VisualMode ctermfg=Black ctermbg=Magenta cterm=bold
+  hi InsertMode ctermfg=Black ctermbg=LightBlue cterm=bold
+  hi ReplaceMode ctermfg=Black ctermbg=Red cterm=bold
+  hi CommandMode ctermfg=LightYellow ctermbg=Black cterm=bold
+  hi File ctermfg=Magenta ctermbg=Black cterm=NONE
+  hi FileType ctermfg=DarkCyan ctermbg=Black cterm=NONE
+  hi Percent ctermfg=Grey ctermbg=NONE cterm=NONE
+  hi Column ctermfg=DarkCyan ctermbg=Black cterm=NONE
   unlet s:t_Co
   finish
 endif

.config/nvim/init.vim

@@ -15,9 +15,6 @@ call plug#begin('$HOME/.config/nvim/plugged')
 
 """"""""""""""""""""""""""""""""""""""""""""""""""
 
-" Custom status bar
-Plug 'itchyny/lightline.vim'
-
 " Language highlighting packages
 Plug 'sheerun/vim-polyglot'
 
@@ -39,37 +36,6 @@ call plug#end()
 " :PlugUpgrade		- upgrades vim-plug
 " :PlugClean		- confirms removal of unused plugins; append `!` to auto-approve removal
 
-" Lightline already shows the mode -> get rid of vim's default
-set noshowmode
-
-" Lightline customization
-
-let g:lightline = {
-			\ 'colorscheme': 'Tomorrow_Night_Eighties',
-			\ 'active' : {
-				\ 'left': [ [ 'mode', 'paste' ],
-				\ 			[ 'gitbranch' ],
-				\ 			[ 'filename', 'modified' ] ],
-				\ 'right': [ [ 'readonly' ],
-				\ 			[ 'column'],
-				\ 			[ 'filetype' ] ],
-			\ },
-			\ 'subseparator': { 'left': '-'},
-			\ 'component_function': {
-				\ 'gitbranch': 'fugitive#head',
-    			\ 'modified': 'LightlineModified',
-    			\ 'filetype': 'LightlineFiletype'
-				\ }
-			\ }
-
-function! LightlineModified()
-  return &modifiable && &modified ? '[MO]' : ''
-endfunction
-
-function! LightlineFiletype()
-  return winwidth(0) > 70 ? (&filetype !=# '' ? &filetype : 'no ft') : ''
-endfunction
-
 " Indent Guides
 let g:indent_guides_enable_on_vim_startup=1
 
@@ -137,6 +103,20 @@ set termguicolors
 " Colorscheme
 colorscheme polyjuice
 
+" Statusline
+set noshowmode
+source $XDG_CONFIG_HOME/nvim/statusline.vim
+
+augroup statusline
+    autocmd!
+	autocmd VimEnter *
+				\ call UpdateInactiveWindows()
+    autocmd VimEnter,WinEnter,BufWinEnter *
+				\ call RefreshStatusLine('active')
+	autocmd WinLeave *
+				\ call RefreshStatusLine('inactive')
+augroup END
+
 "" Text, tab and indent
 """"""""""""""""""""""""""""""""""""""""""""""""""
 " Do not use spaces instead of tabs
@@ -198,9 +178,5 @@ noremap <leader>pi :PlugInstall<CR>
 noremap <leader>pc :PlugClean<CR>
 noremap <leader>pu :PlugUpdate \| PlugUpgrade<CR>
 
-" Fugitive
-noremap <leader>gd :Gdiffsplit<CR>
-noremap <leader>gb :Gblame<CR>
-
 " Colorize
 noremap <leader>cc :ColorizerToggle<CR>

.config/nvim/polyjuice.colortemplate

@@ -99,11 +99,13 @@ DiffChange           black               orange
 DiffDelete           black               darkred           g=bold
 DiffText             black               red               bold
 Directory            magenta             none
+File                 magenta             black
+FileType             darkcyan            black
 ErrorMsg             yellow              darkred           bold
 FoldColumn           orange              darkblue
 Folded               orange              darkblue
 IncSearch            none                none              reverse
-LineNr               darkgrey                none
+LineNr               darkgrey            none
 MatchParen           none                none              reverse
 ModeMsg              none                none              bold
 MoreMsg              green               none              g=bold
@@ -114,6 +116,8 @@ Question             green               none              g=bold
 Search               black               orange
 SignColumn           none                none
 SpecialKey           cyan                none
+Mode                 black               green             bold
+Column               darkcyan            black
 StatusLine           white               darkgrey
 StatusLineNC         white               black             reverse
 TabLineFill          none                none
@@ -141,3 +145,18 @@ lCursor           -> Cursor
 ToolbarLine          none                grey
 ToolbarButton        black               grey              bold
 # }}}
+
+# Statusline
+StatusLine           none                none
+StatusLineTerm       black               green             bold
+StatusLineNC         darkgrey            black
+Buffer               green               black
+NormalMode           black               green             bold
+VisualMode           black               magenta           bold
+InsertMode           black               cyan              bold
+ReplaceMode          black               red               bold
+CommandMode          white               black             bold
+File                 magenta             black
+FileType             darkcyan            black
+Percent              darkgrey            none
+Column               darkcyan            black

.config/nvim/statusline.vim

@@ -0,0 +1,122 @@
+function! CurrentMode()
+	let g:currentmode={
+		   \ 'n'  : '[ NORMAL ]',
+		   \ 'v'  : '[ VISUAL ]',
+		   \ 'V'  : '[ V·LINE ]',
+		   \ '' : '[ V·BLOCK ]',
+		   \ 'i'  : '[ INSERT ]',
+		   \ 'R'  : '[ REPLACE ]',
+		   \ 'Rv' : '[ V·REPLACE ]',
+		   \ 'c'  : '[ COMMAND ]',
+		   \}
+
+	return g:currentmode[mode()]
+endfunction
+
+functio! ModeColor()
+
+	let g:modecolor={
+		   \ 'n'  : '%#NormalMode#',
+		   \ 'v'  : '%#VisualMode#',
+		   \ 'V'  : '%#VisualMode#',
+		   \ '' : '%#VisualMode#',
+		   \ 'i'  : '%#InsertMode#',
+		   \ 'R'  : '%#ReplaceMode#',
+		   \ 'Rv' : '%#ReplaceMode#',
+		   \ 'c'  : '%#CommandMode#',
+		   \}
+
+	return g:modecolor[mode()]
+endfunction
+
+function! StatusLine()
+
+	let l:statusline=''
+
+	" Buffer number
+	let l:statusline.='%#Buffer#'
+	let l:statusline.='[%n]'
+
+	" Show current mode
+	let l:statusline.=ModeColor()
+	let l:statusline.=CurrentMode()
+
+	" File path, absolute or relative to ~/
+	let l:statusline.='%#File#'
+	let l:statusline.=' %F'
+
+    let l:statusline .= "%{&readonly?'!':''}"
+    let l:statusline .= "%{&modified?'*':''}"
+
+	" Truncate line here
+	let l:statusline.='%<'
+
+	" Separation point between left and right aligned items.
+	let l:statusline.='%='
+
+	let l:statusline.='%#SpellLocal#'
+	let l:statusline.="%{&spell?'[SPELL]\ ':'\ '}"
+
+	" Filetype
+	let l:statusline.='%#FileType#'
+	let l:statusline.="%{&filetype!=#''?&filetype.' ':'none '}"
+
+	" Encoding & Fileformat
+	let l:statusline.='%#WarningMsg#'
+	let l:statusline.="%{&fileencoding!='utf-8'?'['.&fileencoding.'] ':''}"
+
+
+	"setlocal statusline.=%#FileFormat#
+	"setlocal statusline.=\ %-7([%{&fileformat}]%)
+
+	let l:statusline.='%#Percent#'
+	let l:statusline.='%03.p%%'
+
+	" Location of cursor in line
+	let l:statusline.=' %#Column#'
+	let l:statusline.='-%c-'
+
+	return l:statusline
+
+endfunction
+
+function! StatusLineNC()
+
+	let l:statusline=''
+	" Buffer number
+	let l:statusline.='[%n]'
+
+	" File name
+	let l:statusline.=' %t'
+
+    let l:statusline .= "%{&readonly?'!':''}"
+    let l:statusline .= "%{&modified?'*':''}"
+
+	" Truncate line here
+	let l:statusline.='%<'
+
+	" Separation point between left and right aligned items.
+	let l:statusline.='%='
+
+	let l:statusline.='%#Percent#'
+	let l:statusline.='%03.p%%'
+
+	return l:statusline
+
+endfunction
+
+function! UpdateInactiveWindows()
+    for winnum in range(1, winnr('$'))
+        if winnum != winnr()
+            call setwinvar(winnum, '&statusline', '%!StatusLineNC()')
+        endif
+    endfor
+endfunction
+
+function! RefreshStatusLine(mode)
+    if a:mode == "active"
+        setlocal statusline=%!StatusLine()
+    else
+        setlocal statusline=%!StatusLineNC()
+    endif
+endfunction