From c2877d0d5cf1f9aefd91b2821b89f44ce1b7174d Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Sat, 28 Jun 2014 23:22:00 -0400
Subject: [PATCH] Show commit message in :Gblame statusline

References #405.
---
 plugin/fugitive.vim | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 8eb90c6..2db87ab 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -2049,6 +2049,7 @@ function! s:Blame(bang,line1,line2,count,args) abort
         if exists('+relativenumber')
           setlocal norelativenumber
         endif
+        let &l:statusline = '%{fugitive#blame_statusline('.bufnr('').')}%<'
         execute "vertical resize ".(s:linechars('.\{-\}\ze\s\+\d\+)')+1)
         nnoremap <buffer> <silent> <F1> :help fugitive-:Gblame<CR>
         nnoremap <buffer> <silent> g?   :help fugitive-:Gblame<CR>
@@ -2216,6 +2217,25 @@ function! s:RehighlightBlame() abort
   endfor
 endfunction
 
+function! fugitive#blame_statusline(nr) abort
+  if bufnr('%') != a:nr && !getwinvar(0, '&cursorbind')
+    return ''
+  endif
+  let line = getbufline(a:nr, line('.'))[0]
+  let hash = matchstr(line, '^\^\=\zs\x\{7}')
+  if hash =~# '^0*$'
+    return ''
+  endif
+  if type(getbufvar(a:nr, 'fugitive_blame_lookup')) != type({})
+    call setbufvar(a:nr, 'fugitive_blame_lookup', {})
+  endif
+  let lookup = getbufvar(a:nr, 'fugitive_blame_lookup')
+  if !has_key(lookup, hash)
+    let lookup[hash] = s:repo().git_chomp('log', '-1', hash, '--pretty=format:'.g:fugitive_summary_format)
+  endif
+  return get(lookup, hash, '')
+endfunction
+
 " Section: Gbrowse
 
 call s:command("-bar -bang -range=0 -nargs=* -complete=customlist,s:EditComplete Gbrowse :execute s:Browse(<bang>0,<line1>,<count>,<f-args>)")