config: handle realloc issues from larger depths

As the include depth increases, the chance of a realloc
increases. This means that whenever we run git_array_alloc() or call
config_parse(), we need to remember what our reader's index is so we
can look it up again.

1 files changed, 14 insertions, 0 deletions

diff --git a/tests-clar/config/include.c b/tests-clar/config/include.c
index f1019a9dc..535573808 100644
--- a/tests-clar/config/include.c
+++ b/tests-clar/config/include.c
@@ -93,3 +93,17 @@ void test_config_include__ordering(void)
 
 	git_config_free(cfg);
 }
+
+/* We need to pretend that the variables were defined where the file was included */
+void test_config_include__depth(void)
+{
+	git_config *cfg;
+
+	cl_git_mkfile("a", "[include]\npath = b");
+	cl_git_mkfile("b", "[include]\npath = a");
+
+	cl_git_fail(git_config_open_ondisk(&cfg, "a"));
+
+	unlink("a");
+	unlink("b");
+}