git-apply: applying a patch to make a symlink shorter.

The internal representation of the result is counted string
(i.e. char *buf and ulong size), which is fine for writing out
to regular file, but throwing the buf at symlink(2) was a
no-no.

Reported by Willy Tarreau.

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 49 insertions, 0 deletions

diff --git a/t/t4115-apply-symlink.sh b/t/t4115-apply-symlink.sh
new file mode 100755
index 0000000000..d5f2cfb186
--- /dev/null
+++ b/t/t4115-apply-symlink.sh
@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+
+test_description='git-apply symlinks and partial files
+
+'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+	ln -s path1/path2/path3/path4/path5 link1 &&
+	git add link? &&
+	git commit -m initial &&
+
+	git branch side &&
+
+	rm -f link? &&
+
+	ln -s htap6 link1 &&
+	git update-index link? &&
+	git commit -m second &&
+
+	git diff-tree -p HEAD^ HEAD >patch  &&
+	git apply --stat --summary patch
+
+'
+
+test_expect_success 'apply symlink patch' '
+
+	git checkout side &&
+	git apply patch &&
+	git diff-files -p >patched &&
+	diff -u patch patched
+
+'
+
+test_expect_success 'apply --index symlink patch' '
+
+	git checkout -f side &&
+	git apply --index patch &&
+	git diff-index --cached -p HEAD >patched &&
+	diff -u patch patched
+
+'
+
+test_done