@@ -14,6 +14,7 @@
#include "utf8.h"
#include "quote.h"
#include "thread-utils.h"
+#include "dir.h"
const char git_attr__true[] = "(builtin)true";
const char git_attr__false[] = "\0(builtin)false";
@@ -744,6 +745,19 @@ static struct attr_stack *read_attr_from_index(struct index_state *istate,
if (!istate)
return NULL;
+ /*
+ * The .gitattributes file only applies to files within its
+ * parent directory. In the case of cone-mode sparse-checkout,
+ * the .gitattributes file is sparse if and only if all paths
+ * within that directory are also sparse. Thus, don't load the
+ * .gitattributes file since it will not matter.
+ *
+ * In the case of a sparse index, it is critical that we don't go
+ * looking for a .gitattributes file, as the index will expand.
+ */
+ if (!path_in_cone_mode_sparse_checkout(path, istate))
+ return NULL;
+
buf = read_blob_data_from_index(istate, path, NULL);
if (!buf)
return NULL;