Merge branch 'cc/maint-diff-CC-binary'

* cc/maint-diff-CC-binary:
  diff: fix "git show -C -C" output when renaming a binary file

Conflicts:
	diff.c

2 files changed, 82 insertions, 0 deletions

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index e92eab09cb..935d101fe8 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -438,6 +438,43 @@ test_expect_success 'whitespace-only changes not reported' '
 	test_cmp expect actual
 '
 
+cat <<EOF >expect
+diff --git a/x b/z
+similarity index NUM%
+rename from x
+rename to z
+index 380c32a..a97b785 100644
+EOF
+test_expect_success 'whitespace-only changes reported across renames' '
+	git reset --hard &&
+	for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
+	git add x &&
+	git commit -m "base" &&
+	sed -e "5s/^/ /" x >z &&
+	git rm x &&
+	git add z &&
+	git diff -w -M --cached |
+	sed -e "/^similarity index /s/[0-9][0-9]*/NUM/" >actual &&
+	test_cmp expect actual
+'
+
+cat >expected <<\EOF
+diff --git a/empty b/void
+similarity index 100%
+rename from empty
+rename to void
+EOF
+
+test_expect_success 'rename empty' '
+	git reset --hard &&
+	>empty &&
+	git add empty &&
+	git commit -m empty &&
+	git mv empty void &&
+	git diff -w --cached -M >current &&
+	test_cmp expected current
+'
+
 test_expect_success 'combined diff with autocrlf conversion' '
 
 	git reset --hard &&
diff --git a/t/t4043-diff-rename-binary.sh b/t/t4043-diff-rename-binary.sh
new file mode 100755
index 0000000000..06012811a1
--- /dev/null
+++ b/t/t4043-diff-rename-binary.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 Jakub Narebski, Christian Couder
+#
+
+test_description='Move a binary file'
+
+. ./test-lib.sh
+
+
+test_expect_success 'prepare repository' '
+	git init &&
+	echo foo > foo &&
+	echo "barQ" | q_to_nul > bar &&
+	git add . &&
+	git commit -m "Initial commit"
+'
+
+test_expect_success 'move the files into a "sub" directory' '
+	mkdir sub &&
+	git mv bar foo sub/ &&
+	git commit -m "Moved to sub/"
+'
+
+cat > expected <<\EOF
+ bar => sub/bar |  Bin 5 -> 5 bytes
+ foo => sub/foo |    0
+ 2 files changed, 0 insertions(+), 0 deletions(-)
+
+diff --git a/bar b/sub/bar
+similarity index 100%
+rename from bar
+rename to sub/bar
+diff --git a/foo b/sub/foo
+similarity index 100%
+rename from foo
+rename to sub/foo
+EOF
+
+test_expect_success 'git show -C -C report renames' '
+	git show -C -C --raw --binary --stat | tail -n 12 > current &&
+	test_cmp expected current
+'
+
+test_done