From: Shawn O. Pearce <spearce@spearce.org>
Date: Wed, 03 Sep 2008 23:08:14 GMT
Subject: Re: Git Gui does not want to work on chunk level
Message-ID: <20080903230814.GJ28315@spearce.org>
In-Reply-To: <c6c947f60809031223i575ca3fdya357588610bb72e8@mail.gmail.com>

Alexander Gladysh <agladysh@gmail.com> wrote:
> On Wed, Aug 27, 2008 at 1:16 PM, Alexander Gladysh <agladysh@gmail.com> wrote:
> > $ git --version
> > git version 1.6.0.GIT
> >
> > $ git gui --version
> > git-gui version 0.11.GITGUI
> >
> > I like 'stage hunk for commit' feature in Git Gui, but often it gives
> > me an error message box:
> >
> > fatal: git-apply: bad git-diff - inconsistent old filename on line 4
...
> Does anyone else encounter this kind of error? Any debugging advice?
> Perhaps I can instrument git gui with logging somewhere (dump diffs
> for example). (I have no experience with TCL though.)

I've never seen that before, but its clearly dumping a bad diff
into git-apply.

Open up lib/diff.tcl and find "proc apply_hunk".  Inside of the
catch maybe insert a puts to see the diff, e.g.:

diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
index 52b79e4..4acaccf 100644
--- a/git-gui/lib/diff.tcl
+++ b/git-gui/lib/diff.tcl
@@ -341,6 +341,8 @@ proc apply_hunk {x y} {
 		fconfigure $p -translation binary -encoding binary
 		puts -nonewline $p $current_diff_header
 		puts -nonewline $p [$ui_diff get $s_lno $e_lno]
+puts -nonewline stdout $current_diff_header
+puts -nonewline stdout [$ui_diff get $s_lno $e_lno]
 		close $p} err]} {
 		error_popup [append $failed_msg "\n\n$err"]
 		unlock_index

Then if you can scrub the context and +/- lines for a bad diff and
send us at least the headers, or tell us how they are malformed,
it would help to debug it.
 
-- 
Shawn.