From 8947fdd598848b8ceb2cea9ff42e906c946eae5c Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Tue, 8 Dec 2009 02:49:35 -0500
Subject: add-interactive: fix deletion of non-empty files

Commit 24ab81a fixed the deletion of empty files, but broke
deletion of non-empty files. The approach it took was to
factor out the "deleted" line from the patch header into its
own hunk, the same way we do for mode changes. However,
unlike mode changes, we only showed the special "delete this
file" hunk if there were no other hunks. Otherwise, the user
would annoyingly be presented with _two_ hunks: one for
deleting the file and one for deleting the content.

This meant that in the non-empty case, we forgot about the
deleted line entirely, and we submitted a bogus patch to
git-apply (with "/dev/null" as the destination file, but not
marked as a deletion).

Instead, this patch combines the file deletion hunk and the
content deletion hunk (if there is one) into a single
deletion hunk which is either staged or not.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 git-add--interactive.perl  |  6 +++++-
 t/t3701-add-interactive.sh | 20 ++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 35f4ef11d..02e97b90f 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1217,7 +1217,11 @@ sub patch_update_file {
 	if (@{$mode->{TEXT}}) {
 		unshift @hunk, $mode;
 	}
-	if (@{$deletion->{TEXT}} && !@hunk) {
+	if (@{$deletion->{TEXT}}) {
+		foreach my $hunk (@hunk) {
+			push @{$deletion->{TEXT}}, @{$hunk->{TEXT}};
+			push @{$deletion->{DISPLAY}}, @{$hunk->{DISPLAY}};
+		}
 		@hunk = ($deletion);
 	}
 
diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh
index aa5909b14..0926b91d5 100755
--- a/t/t3701-add-interactive.sh
+++ b/t/t3701-add-interactive.sh
@@ -214,6 +214,26 @@ test_expect_success 'add first line works' '
 	test_cmp expected diff
 '
 
+cat >expected <<EOF
+diff --git a/non-empty b/non-empty
+deleted file mode 100644
+index d95f3ad..0000000
+--- a/non-empty
++++ /dev/null
+@@ -1 +0,0 @@
+-content
+EOF
+test_expect_success 'deleting a non-empty file' '
+	git reset --hard &&
+	echo content >non-empty &&
+	git add non-empty &&
+	git commit -m non-empty &&
+	rm non-empty &&
+	echo y | git add -p non-empty &&
+	git diff --cached >diff &&
+	test_cmp expected diff
+'
+
 cat >expected <<EOF
 diff --git a/empty b/empty
 deleted file mode 100644
-- 
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