From a3d5e844173fa57e84d1013b4dd06a8279c1a86f Mon Sep 17 00:00:00 2001
From: Kyle Holzinger <kylelholzinger@gmail.com>
Date: Fri, 22 Dec 2017 12:13:22 -0500
Subject: [PATCH] Add formatter for js files

---
 .../extensions/tabline/formatters/jsformatter.vim      | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 autoload/airline/extensions/tabline/formatters/jsformatter.vim

diff --git a/autoload/airline/extensions/tabline/formatters/jsformatter.vim b/autoload/airline/extensions/tabline/formatters/jsformatter.vim
new file mode 100644
index 00000000..4fd7f45f
--- /dev/null
+++ b/autoload/airline/extensions/tabline/formatters/jsformatter.vim
@@ -0,0 +1,10 @@
+function! airline#extensions#tabline#formatters#jsformatter#format(bufnr, buffers)
+  let buf = bufname(a:bufnr)
+  let filename = fnamemodify(buf, ':t')
+
+  if filename == 'index.js' || filename == 'index.jsx'
+    return fnamemodify(buf, ':p:h:t') . '/i'
+  else
+    return airline#extensions#tabline#formatters#unique_tail_improved#format(a:bufnr, a:buffers)
+  endif
+endfunction