vim: replace lightline with airline

vim/plugins_config.vim

@@ -87,35 +87,27 @@ let g:gitgutter_sign_modified_removed   = 'x'
 " highlight DiffChange cterm=bold ctermfg=10 ctermbg=17 gui=none guifg=bg guibg=Red
 " highlight DiffText   cterm=bold ctermfg=10 ctermbg=88 gui=none guifg=bg guibg=Red
 
-" Lightline config from amix's vimrc " TODO: this could be improved
-let g:lightline = {
-      \ 'colorscheme': 'wombat',
-      \ 'active': {
-      \   'left': [ ['mode', 'paste'],
-      \             ['fugitive', 'readonly', 'filename', 'modified'] ],
-      \   'right': [ [ 'lineinfo' ], ['percent'] ]
-      \ },
-      \ 'component': {
-      \   'readonly': '%{&filetype=="help"?"":&readonly?"¿":""}',
-      \   'modified': '%{&filetype=="help"?"":&modified?"+":&modifiable?"":"-"}',
-      \   'fugitive': '%{exists("*FugitiveHead")?FugitiveHead():""}'
-      \ },
-      \ 'component_visible_condition': {
-      \   'readonly': '(&filetype!="help"&& &readonly)',
-      \   'modified': '(&filetype!="help"&&(&modified||!&modifiable))',
-      \   'fugitive': '(exists("*FugitiveHead") && ""!=FugitiveHead())'
-      \ },
-      \ 'separator': { 'left': ' ', 'right': ' ' },
-      \ 'subseparator': { 'left': ' ', 'right': ' ' }
-      \ }
-
-let g:lightline.component_expand = {
-      \  'linter_checking': 'lightline#ale#checking',
-      \  'linter_infos': 'lightline#ale#infos',
-      \  'linter_warnings': 'lightline#ale#warnings',
-      \  'linter_errors': 'lightline#ale#errors',
-      \  'linter_ok': 'lightline#ale#ok',
-      \ }
+" Airline config
+set laststatus=2
+let g:airline#extensions#tabline#enabled = 1
+let g:airline_theme='gruvbox'
+" " default linenr symbol is '☰' and it sucks
+" let g:airline_symbols.linenr = ''
+" " powerline symbols
+if !exists('g:airline_symbols')
+    let g:airline_symbols = {}
+endif
+let g:airline_left_sep = ''
+let g:airline_left_alt_sep = ''
+let g:airline_right_sep = ''
+let g:airline_right_alt_sep = ''
+" let g:airline_symbols = {}
+let g:airline_symbols.branch = ''
+let g:airline_symbols.readonly = ''
+"let g:airline_symbols.linenr = '☰'
+let g:airline_symbols.linenr = ''
+"let g:airline_symbols.maxlinenr = ''
+" let g:airline_symbols.dirty='⚡'
 
 " These are the default mappings for vim-multi-cursor
 let g:multi_cursor_start_word_key      = '<C-n>'

vim/plugs.vim

@@ -21,10 +21,9 @@ Plug 'https://github.com/tpope/vim-fugitive'
 Plug 'https://github.com/tpope/vim-commentary'
 " Browse file system
 Plug 'https://github.com/scrooloose/nerdtree', { 'on': 'NERDTreeToggle' }
-" Minimal status line
-Plug 'https://github.com/itchyny/lightline.vim'
-" Lightline status for ALE
-Plug 'maximbaz/lightline-ale'
+" status line
+Plug 'vim-airline/vim-airline'
+Plug 'vim-airline/vim-airline-themes'
 " Insert parentheses in pairs
 Plug 'https://github.com/jiangmiao/auto-pairs'
 Plug 'https://github.com/amix/open_file_under_cursor.vim'