vim: statusline2 (#1)

Co-authored-by: Michael Grote <michael.grote@posteo.de>
Reviewed-on: #1
Co-authored-by: mg <mg@noreply.git.mgrote.net>
Co-committed-by: mg <mg@noreply.git.mgrote.net>

.vimrc

@@ -6,8 +6,6 @@ set rtp+=~/.vim/bundle/Vundle.vim
 call vundle#begin('~/.vim/plugged')
 " Let Vundle manage Vundle; muss immer der erste Eintrag sein
 Plugin 'VundleVim/Vundle.vim'
-" statusline
-Plugin 'itchyny/lightline.vim'
 " languagepack
 Plugin 'sheerun/vim-polyglot'
 " fuzzy finder
@@ -70,20 +68,6 @@ set clipboard=unnamedplus
 set showmatch
 
 " ### Plugins"
-" ### lightline/statusline
-" blende insert/visual/... in der commandline aus, steht in lightline
-set noshowmode
-set laststatus=2
-let g:lightline = {
-      \ 'active': {
-      \   'left': [ [ 'mode', 'paste' ],
-      \             [ 'gitbranch', 'readonly', 'filename', 'modified' ] ]
-      \ },
-      \ 'component_function': {
-      \   'gitbranch': 'FugitiveHead'
-      \ },
-      \ }
-
 " ### ripgrep und ctrlp
 " sudo apt install ripgrep(rg)
 if executable('rg')
@@ -101,9 +85,9 @@ let g:ctrlp_custom_ignore = '\v[\/]\.(git|hg|svn)$'
 " stelle standard keybinding um
 let g:ctrlp_map = ''
 
-
-
 " ### Keybindings
+" deaktiviere Ex-Mode keybinding
+:nnoremap Q <Nop>
 " Ctrl+S zum speichern
 nmap  <C-s> :w<CR>
 " ctrl+W zum schließen
@@ -119,3 +103,61 @@ nmap <C-g> :tab G
 " markiere text im visual mode; suche dann danach mit // im visual-mode
 " https://vim.fandom.com/wiki/Search_for_visually_selected_text
 vnoremap // y/\V<C-R>=escape(@",'/\')<CR><CR>
+" https://shapeshed.com/vim-statuslines/
+function! GitBranch()
+  return system("git rev-parse --abbrev-ref HEAD 2>/dev/null | tr -d '\n'")
+endfunction
+
+### Statuszeile
+" https://stackoverflow.com/questions/56274737/what-is-the-return-value-for-visual-block-mode-in-vimscript
+" https://jdhao.github.io/2019/11/03/vim_custom_statusline/
+" https://shapeshed.com/vim-statuslines/
+" https://jip.dev/posts/a-simpler-vim-statusline/
+" https://jordanelver.co.uk/blog/2015/05/27/working-with-vim-colorschemes/
+" blende insert/visual/... in der commandline aus, steht in lightline
+set noshowmode
+set laststatus=2
+
+" Funktion git branch
+function! StatuslineGit()
+  let l:branchname = GitBranch()
+  return strlen(l:branchname) > 0?'  '.l:branchname.' ':''
+endfunction
+
+set statusline=
+set statusline+=%#StatusLineTerm#
+set statusline+=%{g:currentmode[mode()]}
+set statusline+=%#PmenuSel#
+set statusline+=%{StatuslineGit()}
+set statusline+=%#ToolButton#
+set statusline+=\%f
+set statusline+=%#TabLineFill#
+set statusline+=%m
+set statusline+=%=
+set statusline+=\ %y
+set statusline+=\ %{&fileencoding?&fileencoding:&encoding}
+set statusline+=\ [%{&fileformat}\]
+set statusline+=\ %l:%c
+set statusline+=\
+set statusline+=%{&paste?'PASTE':''}
+let g:currentmode={
+      \ 'n'  : 'NORMAL',
+      \ 'no' : 'NORMAL·OPERATOR PENDING',
+      \ 'v'  : 'VISUAL',
+      \ 'V'  : 'VISUAL·LINE',
+      \ "\<C-V>" : 'VISUAL·BLOCK',
+      \ 's'  : 'SELECT',
+      \ 'S'  : 'SELECT·LINE',
+      \ 'x19' : 'SELECT-BLOCK',
+      \ 'i'  : 'INSERT',
+      \ 'R'  : 'REPLACE',
+      \ 'Rv' : 'VISUAL·REPLACE',
+      \ 'c'  : 'COMMAND',
+      \ 'cv' : 'VIM EX',
+      \ 'ce' : 'EX',
+      \ 'r'  : 'PROMPT',
+      \ 'rm' : 'MORE ',
+      \ 'r?' : 'CONFIRM ',
+      \ '!'  : 'SHELL ',
+      \ 't'  : 'TERMINAL '
+      \}