From ebb8f0c2b1106b71ed44043bec2fc63b6e171b63 Mon Sep 17 00:00:00 2001
From: Carlo Lobrano <c.lobrano@gmail.com>
Date: Wed, 10 Apr 2019 22:17:43 +0200
Subject: [PATCH 1/2] Add formatter for short paths

Add new formatter that shows the file path up to the first parent directory
---
 .../tabline/formatters/short_path.vim         | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 autoload/airline/extensions/tabline/formatters/short_path.vim

diff --git a/autoload/airline/extensions/tabline/formatters/short_path.vim b/autoload/airline/extensions/tabline/formatters/short_path.vim
new file mode 100644
index 00000000..cb4897df
--- /dev/null
+++ b/autoload/airline/extensions/tabline/formatters/short_path.vim
@@ -0,0 +1,19 @@
+" MIT License. Copyright (c) 2013-2019 Bailey Ling et al.
+" vim: et ts=2 sts=2 sw=2
+
+scriptencoding utf-8
+
+let s:fnamecollapse = get(g:, 'airline#extensions#tabline#fnamecollapse', 1)
+
+function! airline#extensions#tabline#formatters#short_path#format(bufnr, buffers)
+  let _ = ''
+
+  let name = bufname(a:bufnr)
+  if empty(name)
+    let _ .= '[No Name]'
+  else
+    let _ .= fnamemodify(name, ':p:h:t') . '/' . fnamemodify(name, ':t')
+  endif
+
+  return airline#extensions#tabline#formatters#default#wrap_name(a:bufnr, _)
+endfunction

From 0f1aec97daea2a03c54cca89d48bd9969ebcc648 Mon Sep 17 00:00:00 2001
From: Carlo Lobrano <c.lobrano@gmail.com>
Date: Sun, 14 Apr 2019 10:03:24 +0200
Subject: [PATCH 2/2] Add documentation for short_path formatter

---
 doc/airline.txt | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/doc/airline.txt b/doc/airline.txt
index 44dac5c7..2beb2d4c 100644
--- a/doc/airline.txt
+++ b/doc/airline.txt
@@ -976,7 +976,15 @@ with the middle mouse button to delete that buffer.
   " The `unique_tail_improved` - another algorithm, that will smartly uniquify
   " buffers names with similar filename, suppressing common parts of paths.
   let g:airline#extensions#tabline#formatter = 'unique_tail_improved'
-<
+
+  " The `short_path` - is a simple formatter, that will show the
+  filename, with its extension, and the first parent directory only.
+
+  e.g.
+     /home/user/project/subdir/file.ext -> subdir/file.ext
+
+  let g:airline#extensions#tabline#formatter = 'short_path'
+
 * configure the minimum number of buffers needed to show the tabline. >
   let g:airline#extensions#tabline#buffer_min_count = 0
 <