[BUG] git diff --(src|dst)-prefix=// causes spurious "(new|deleted) file mode"

From

Noam Postavsky <npostavs@users.sourceforge.net>

Date

May 28, 2014, 01:55 UTC

Message-ID

<CAM-tV-9vQPPj+TemYnzjRMTjaHqwo3qq=WWJ89VnRMAeYXHZZw@mail.gmail.com>

% git init
Initialized empty Git repository in /home/npostavs/tmp/scratch/.git/
% echo foo > x
% git add x
% git commit -m x
[master (root-commit) 41be1f2] x
 1 file changed, 1 insertion(+)
 create mode 100644 x
% echo bar > x
% git diff  | head -3

diff --git i/x w/x
index 257cc56..5716ca5 100644
--- i/x
% git diff --dst-prefix=// | head -3
diff --git i/x //x
deleted file mode 100644
index 257cc56..5716ca5 100644
% git diff --src-prefix=// | head -3
diff --git //x w/x
new file mode 100644
index 257cc56..5716ca5 100644
% git diff --src-prefix=// --dst-prefix=// | head -3
diff --git //x //x
new file mode 100644
index 257cc56..5716ca5 100644
% git --version
git version 1.9.2

Background: trying to find a prefix that can't show up in file names
in order to make parsing easier.
https://github.com/magit/magit/pull/1379
https://github.com/magit/magit/pull/1383