[PATCH] Fix rev-list when showing objects involving submodules

[Johannes Schindelin <Johannes.Schindelin@gmx.de>]

The function mark_tree_uninteresting() assumed that the tree entries
are blob when they are not trees.  This is not so.  Since we do
not traverse into submodules (yet), the gitlinks should be ignored.

Noticed by Ilari on IRC.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 revision.c                    |    2 +-
 t/t6008-rev-list-submodule.sh |   42 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 1 deletions(-)
 create mode 100755 t/t6008-rev-list-submodule.sh

diff --git a/revision.c b/revision.c
index 931f978..81b5a93 100644
--- a/revision.c
+++ b/revision.c
@@ -69,7 +69,7 @@ void mark_tree_uninteresting(struct tree *tree)
 	while (tree_entry(&desc, &entry)) {
 		if (S_ISDIR(entry.mode))
 			mark_tree_uninteresting(lookup_tree(entry.sha1));
-		else
+		else if (!S_ISGITLINK(entry.mode))
 			mark_blob_uninteresting(lookup_blob(entry.sha1));
 	}
 
diff --git a/t/t6008-rev-list-submodule.sh b/t/t6008-rev-list-submodule.sh
new file mode 100755
index 0000000..88e96fb
--- /dev/null
+++ b/t/t6008-rev-list-submodule.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Johannes E. Schindelin
+#
+
+test_description='git rev-list involving submodules that this repo has'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	: > file &&
+	git add file &&
+	test_tick &&
+	git commit -m initial &&
+	echo 1 > file &&
+	test_tick &&
+	git commit -m second file &&
+	echo 2 > file &&
+	test_tick &&
+	git commit -m third file &&
+
+	rm .git/index &&
+
+	: > super-file &&
+	git add super-file &&
+	git submodule add . sub &&
+	git symbolic-ref HEAD refs/heads/super &&
+	test_tick &&
+	git commit -m super-initial &&
+	echo 1 > super-file &&
+	test_tick &&
+	git commit -m super-first super-file &&
+	echo 2 > super-file &&
+	test_tick &&
+	git commit -m super-second super-file
+'
+
+test_expect_success "Ilari's test" '
+	git rev-list --objects super master ^super^
+'
+
+test_done
-- 
1.5.3.5.1695.g146d07