vim: indentation

.vimrc

@@ -45,6 +45,12 @@ call vundle#end()
 let mapleader = ","
 
 " ### allgemeine Optionen
+" indentation
+" https://vim.fandom.com/wiki/Indenting_source_code
+set expandtab
+set shiftwidth=2
+set softtabstop=2
+
 " ### Suche
 " While typing a search command, show immediately where the so far typed pattern matches.
 set incsearch
@@ -194,7 +200,7 @@ nnoremap <Leader>sc :ShellCheck!<CR>
 " format paragraphs as markdown table
 nnoremap <Leader>mm Vap:EasyAlign *\|<cr><esc>
 nnoremap <F7> Vap:EasyAlign *\|<cr><esc>
-"
+
 " lasse Y wie C oder D funktionieren
 nmap Y y$
 
@@ -264,6 +270,13 @@ nnoremap <F9> :call Whitespaces_all()<CR>
 " entferne trailing whitespaces beim speichern
 autocmd BufWritePre * :call Whitespaces_trailing()
 
+"  fix indentation/auto formatting
+function! Fix_indentation()
+    if filetype ==# 'yaml' || filetype ==# 'bash'
+      autocmd BufWritePre * :normal gg=G
+     endif
+ endfunction
+
 " Exit Vim if NERDTree is the only window remaining in the only tab.
 autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif
 " NERDTree - show hidden files