How to Show Time and Battery Status on Vim 8 Statusline

Hi  People!

As a Vim lover and user, I decided to clean my vimrc a bit this week creating my own statusline and dropping the excellent vim-airline. As I frequently commute by train and I normally use Vim in fullscreen mode, I decided to tweak my statusline to show both the clock and the battery level.

I manily got inspired by Build your own Vim statusline by George Ornbo, but I added a new feature by Vim 8: timer_start(), which allows to call a function after a specified time interval.

Here’s the code to throw into your .vimrc:

	" Mike's statusline
	let g:battery_level = ''
	function! SetBatteryLevel(timer_id)
	let l:battery_level = system('acpi | grep -oP "(\d+)%" | tr -d "\n"')
	if (battery_level != '')
	let g:battery_level = l:battery_level
	redraw!
	endif
	call timer_start(30000, 'SetBatteryLevel')
	endfunction
	function! GitBranch()
	return system("git rev-parse –abbrev-ref HEAD 2>/dev/null | tr -d '\n'")
	endfunction
	function! StatuslineGit()
	let l:branchname = GitBranch()
	return strlen(l:branchname) > 0?' '.l:branchname.' ':''
	endfunction
	set laststatus=2
	set statusline=
	set statusline+=%#PmenuSel#
	set statusline+=%{StatuslineGit()}
	set statusline+=%#LineNr#
	set statusline+=\ %f
	set statusline+=%m
	set statusline+=%=
	set statusline+=%{g:battery_level}\
	set statusline+=%#CursorColumn#
	set statusline+=\ %{strftime('%H:%M')}
	set statusline+=\
	call SetBatteryLevel(0)

view raw
statusline.vim
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And here’s the result:

Happy Hacking!

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