# HG changeset patch
# User Ludovic Chabant <ludovic@chabant.com>
# Date 1398051001 25200
# Node ID ac2c226f1bac65636ba0c9703a7b1b395fbb098a
# Parent  a383a816d9759df14a8b964baaa5c321f18c69f1# Parent  b82babe7fdf83a9fff61b0497f38abf10b5a4a3c
Merge pull request #1 from shaneharper/fix_blank_line_appended_to_hg_output

Fix: remove blank line added by HgRepo.ReadCommandOutput().

diff -r a383a816d975 -r ac2c226f1bac plugin/lawrencium.vim
--- a/plugin/lawrencium.vim	Fri Mar 07 00:42:06 2014 -0800
+++ b/plugin/lawrencium.vim	Sun Apr 20 20:30:01 2014 -0700
@@ -345,13 +345,22 @@
     return system(l:hg_command)
 endfunction
 
-" Runs a Mercurial command in the repo and read it output into the current
+" Runs a Mercurial command in the repo and reads its output into the current
 " buffer.
 function! s:HgRepo.ReadCommandOutput(command, ...) abort
+    function! s:PutOutputIntoBuffer(command_line)
+        let l:was_buffer_empty = (line('$') == 1 && getline(1) == '')
+        execute '0read!' . escape(a:command_line, '%#\')
+        if l:was_buffer_empty  " (Always true?)
+            " '0read' inserts before the cursor, leaving a blank line which needs to be deleted:
+            normal! Gdd
+        endif
+    endfunction
+
     let l:all_args = [a:command] + a:000
     let l:hg_command = call(self['GetCommand'], l:all_args, self)
     call s:trace("Running Mercurial command: " . l:hg_command)
-    execute '0read !' . escape(l:hg_command, '%#\')
+    call s:PutOutputIntoBuffer(l:hg_command)
 endfunction
 
 " Build a Lawrencium path for the given file and action.