From 2a69254d214f186e9c752c31069bb6d0706df40c Mon Sep 17 00:00:00 2001
From: kazukazuinaina <ypa.ypa.ypa.t@gmail.com>
Date: Tue, 8 Sep 2020 01:09:39 +0900
Subject: [PATCH] [add] support battery.vim

---
 CHANGELOG.md                            |  2 ++
 autoload/airline/extensions.vim         |  5 +++++
 autoload/airline/extensions/battery.vim | 20 ++++++++++++++++++++
 doc/airline.txt                         |  7 +++++++
 4 files changed, 34 insertions(+)
 create mode 100644 autoload/airline/extensions/battery.vim

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f0ecb35..f935c13c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ This is the Changelog for the vim-airline project.
     - [searchcount](https://vim-jp.org/vimdoc-en/eval.html#searchcount())  support
     - [fern.vim](https://github.com/lambdalisue/fern.vim) support
     - [Vim-CMake](https://github.com/cdelledonne/vim-cmake) support
+    - [battery.vim](https://github.com/lambdalisue/battery.vim) support
+    - [nvim-lspconfig](https://github.com/neovim/nvim-lspconfig) support
 - Improvements
   - git branch can also be displayed using [gina.vim](https://github.com/lambdalisue/gina.vim)
   - coc extensions can also show additional status messages
diff --git a/autoload/airline/extensions.vim b/autoload/airline/extensions.vim
index 52128e7e..f6dda47a 100644
--- a/autoload/airline/extensions.vim
+++ b/autoload/airline/extensions.vim
@@ -450,6 +450,11 @@ function! airline#extensions#load()
     call add(s:loaded_ext, 'searchcount')
   endif
 
+  if get(g:, 'loaded_battery', 0) && get(g:, 'airline#extensions#battery#enabled', 0)
+    call airline#extensions#battery#init(s:ext)
+    call add(s:loaded_ext, 'battery')
+  endif
+
   if !get(g:, 'airline#extensions#disable_rtp_load', 0)
     " load all other extensions, which are not part of the default distribution.
     " (autoload/airline/extensions/*.vim outside of our s:script_path).
diff --git a/autoload/airline/extensions/battery.vim b/autoload/airline/extensions/battery.vim
new file mode 100644
index 00000000..a5aeba38
--- /dev/null
+++ b/autoload/airline/extensions/battery.vim
@@ -0,0 +1,20 @@
+" MIT License. Copyright (c) 2014-2020 Mathias Andersson et al.
+" Plugin: https://github.com/lambdalisue/battery.vim
+" vim: et ts=2 sts=2 sw=2
+
+scriptencoding utf-8
+
+if !exists('g:loaded_battery')
+  finish
+endif
+
+function! airline#extensions#battery#status(...) abort
+  if !exists('g:battery#update_statusline') 
+    let g:battery#update_statusline = 1
+  endif
+  let w:airline_section_z = '%{battery#component()}'
+endfunction
+
+function! airline#extensions#battery#init(ext) abort
+  call a:ext.add_statusline_func('airline#extensions#battery#status')
+endfunction
diff --git a/doc/airline.txt b/doc/airline.txt
index c345de85..033b911c 100644
--- a/doc/airline.txt
+++ b/doc/airline.txt
@@ -480,6 +480,13 @@ ale <https://github.com/dense-analysis/ale>
 * ale close_lnum_symbol >
   let airline#extensions#ale#close_lnum_symbol = ')'
 
+-------------------------------------                      *airline-battery*
+vim-battery <https://github.com/lambdalisue/battery.vim>
+
+* enable/disable battery integration >
+  let g:airline#extensions#battery#enabled = 1
+<  default: 0
+
 -------------------------------------                      *airline-bookmark*
 vim-bookmark <https://github.com/MattesGroeger/vim-bookmarks>