Disable airline and enable lightline for status line

vimrc

@@ -228,8 +228,10 @@ Plugin 'rodjek/vim-puppet'
 " Auto alignment (for Puppet for example)
 Plugin 'godlygeek/tabular'
 
-" A pretty statusline
+" A pretty statusline, bufferline integration
-Plugin 'bling/vim-airline'
+Plugin 'itchyny/lightline.vim'
+Plugin 'bling/vim-bufferline'
+"Plugin 'bling/vim-airline'
 "Bundle 'edkolev/tmuxline.vim'
 
 " Give viual aid to navigate marks
@@ -266,6 +268,20 @@ if has_vundle == 0
   ":qa
 endif
 
+""" User interface {{{
+    """ Custom highlighting, where NONE uses terminal background {{{
+function! CustomHighlighting()
+  highlight Normal      ctermbg=NONE
+  highlight NonText     ctermbg=NONE
+  highlight LineNr      ctermbg=NONE
+  highlight SignColumn  ctermbg=NONE
+  highlight SignColumn  guibg=#151515
+  highlight CursorLine  ctermbg=235
+endfunction
+
+call CustomHighlighting()
+    """ }}}
+""" }}}
 
 "##########################
 " SnipMate
@@ -380,15 +396,15 @@ let g:neocomplcache_lock_buffer_name_pattern = '\*ku\*'
 "Plugin 'bling/vim-airline'
 
 " Toujours afficher la barre de statut
-set laststatus=2                                     " always show statusline
+"set laststatus=2                                     " always show statusline
-" Smarter tab line
+"" Smarter tab line
-let g:airline#extensions#tabline#enabled = 1
+"let g:airline#extensions#tabline#enabled = 1
-"let g:airline#extensions#tabline#left_sep = 'ˇ'
+""let g:airline#extensions#tabline#left_sep = 'ˇ'
-"let g:airline#extensions#tabline#left_alt_sep = 'v'
+""let g:airline#extensions#tabline#left_alt_sep = 'v'
-let g:airline_powerline_fonts = 1
+"let g:airline_powerline_fonts = 1
-"let g:airline_theme='molokai'
+""let g:airline_theme='molokai'
-"let g:airline_theme='lucius'
+""let g:airline_theme='lucius'
-let g:airline_theme='monochrome'
+"let g:airline_theme='monochrome'
 
 "##########################
 " Tmuxline :
@@ -396,6 +412,163 @@ let g:airline_theme='monochrome'
 " https://github.com/edkolev/tmuxline.vim
 "Plugin 'edkolev/tmuxline.vim'
 
+"##########################
+" Lightline :
+"##########################
+""" Lightline {{{
+
+set laststatus=2                                     " always show statusline
+let g:lightline = {
+  \ 'colorscheme': 'jellybeans',
+  \ 'active': {
+  \     'left': [
+  \         ['mode', 'paste'],
+  \         ['readonly', 'fugitive'],
+  \         ['ctrlpmark', 'bufferline']
+  \     ],
+  \     'right': [
+  \         ['lineinfo'],
+  \         ['percent'],
+  \         ['fileformat', 'fileencoding', 'filetype', 'syntastic']
+  \     ]
+  \ },
+  \ 'component': {
+  \     'paste': '%{&paste?"!":""}'
+  \ },
+  \ 'component_function': {
+  \     'mode'         : 'MyMode',
+  \     'fugitive'     : 'MyFugitive',
+  \     'readonly'     : 'MyReadonly',
+  \     'ctrlpmark'    : 'CtrlPMark',
+  \     'bufferline'   : 'MyBufferline',
+  \     'fileformat'   : 'MyFileformat',
+  \     'fileencoding' : 'MyFileencoding',
+  \     'filetype'     : 'MyFiletype'
+  \ },
+  \ 'component_expand': {
+  \     'syntastic': 'SyntasticStatuslineFlag',
+  \ },
+  \ 'component_type': {
+  \     'syntastic': 'middle',
+  \ },
+  \ 'subseparator': {
+  \     'left': 'ᑄ', 'right': 'ᑁ'
+  \ }
+  \ }
+
+let g:lightline.mode_map = {
+  \ 'n'      : ' Normal ',
+  \ 'i'      : ' Insert ',
+  \ 'R'      : ' Replace ',
+  \ 'v'      : ' Visual ',
+  \ 'V'      : 'Visual-L',
+  \ 'c'      : ' C ',
+  \ "\<C-v>" : 'Visual-B',
+  \ 's'      : ' Sub ',
+  \ 'S'      : 'Sub-L',
+  \ "\<C-s>" : 'Sub-B',
+  \ '?'      : '      ' }
+
+        function! MyMode()
+            let fname = expand('%:t')
+            return fname == '__Tagbar__' ? 'Tagbar' :
+                    \ fname == 'ControlP' ? 'CtrlP' :
+                    \ winwidth('.') > 60 ? lightline#mode() : ''
+        endfunction
+
+        function! MyFugitive()
+            try
+                if expand('%:t') !~? 'Tagbar' && exists('*fugitive#head')
+                    let mark = '± '
+                    let _ = fugitive#head()
+                    return strlen(_) ? mark._ : ''
+                endif
+            catch
+            endtry
+            return ''
+        endfunction
+
+        function! MyReadonly()
+            return &ft !~? 'help' && &readonly ? '≠' : '' " or ⭤
+        endfunction
+
+        function! CtrlPMark()
+            if expand('%:t') =~ 'ControlP'
+                call lightline#link('iR'[g:lightline.ctrlp_regex])
+                return lightline#concatenate([g:lightline.ctrlp_prev, g:lightline.ctrlp_item
+                    \ , g:lightline.ctrlp_next], 0)
+            else
+                return ''
+            endif
+        endfunction
+
+        function! MyBufferline()
+            call bufferline#refresh_status()
+            let b = g:bufferline_status_info.before
+            let c = g:bufferline_status_info.current
+            let a = g:bufferline_status_info.after
+            let alen = strlen(a)
+            let blen = strlen(b)
+            let clen = strlen(c)
+            let w = winwidth(0) * 4 / 11
+            if w < alen+blen+clen
+                let whalf = (w - strlen(c)) / 2
+                let aa = alen > whalf && blen > whalf ? a[:whalf] : alen + blen < w - clen || alen < whalf ? a : a[:(w - clen - blen)]
+                let bb = alen > whalf && blen > whalf ? b[-(whalf):] : alen + blen < w - clen || blen < whalf ? b : b[-(w - clen - alen):]
+                return (strlen(bb) < strlen(b) ? '...' : '') . bb . c . aa . (strlen(aa) < strlen(a) ? '...' : '')
+            else
+                return b . c . a
+            endif
+        endfunction
+
+        function! MyFileformat()
+            return winwidth('.') > 90 ? &fileformat : ''
+        endfunction
+
+        function! MyFileencoding()
+            return winwidth('.') > 80 ? (strlen(&fenc) ? &fenc : &enc) : ''
+        endfunction
+
+        function! MyFiletype()
+            return winwidth('.') > 70 ? (strlen(&filetype) ? &filetype : 'no ft') : ''
+        endfunction
+
+        let g:ctrlp_status_func = {
+            \ 'main': 'CtrlPStatusFunc_1',
+            \ 'prog': 'CtrlPStatusFunc_2',
+            \ }
+
+        function! CtrlPStatusFunc_1(focus, byfname, regex, prev, item, next, marked)
+            let g:lightline.ctrlp_regex = a:regex
+            let g:lightline.ctrlp_prev = a:prev
+            let g:lightline.ctrlp_item = a:item
+            let g:lightline.ctrlp_next = a:next
+            return lightline#statusline(0)
+        endfunction
+
+        function! CtrlPStatusFunc_2(str)
+            return lightline#statusline(0)
+        endfunction
+
+        let g:tagbar_status_func = 'TagbarStatusFunc'
+
+        function! TagbarStatusFunc(current, sort, fname, ...) abort
+            let g:lightline.fname = a:fname
+            return lightline#statusline(0)
+        endfunction
+
+        function! s:syntastic()
+            SyntasticCheck
+            call lightline#update()
+        endfunction
+
+        augroup AutoSyntastic
+            autocmd!
+            execute "autocmd FileType " .
+                        \join(g:syntastic_mode_map["active_filetypes"], ",") .
+                        \" autocmd BufWritePost <buffer> :call s:syntastic()"
+        augroup END
+    """ }}}
 """"""""""""""""""""""""""""""""""""""""""""""""
 " Paramétrage de exuberant-ctags
 "http://ngressier.developpez.com/articles/vim/vim-plugin-taglist/#LC