Switched from pathogen to vim-plug

vim/vimrc

@@ -1,11 +1,17 @@
-" pathogen
-execute pathogen#infect()
+" vim-plug installer
+if empty(glob('~/.vim/autoload/plug.vim'))
+  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
+    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
+  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
+endif
 
-" auto indent
-filetype plugin indent on
-
-" enable syntax highlighting
-syntax on
+" vim-plug plugins
+call plug#begin('~/.vim/vim-plug')
+Plug 'valloric/youcompleteme'
+Plug 'rhysd/vim-clang-format'
+Plug 'vim-airline/vim-airline'
+Plug 'ambv/black'
+call plug#end()
 
 " tabwidth
 set tabstop=4
@@ -29,9 +35,3 @@ let g:airline#extensions#whitespace#mixed_indent_algo = 2
 " themes
 colorscheme elflord
 
-" gvim layout
-set guioptions-=r
-set guioptions-=L
-set guioptions-=m
-set guioptions-=T
-