path: add functions to detect .gitconfig and .gitattributes

include/git2/sys/path.h

+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+#ifndef INCLUDE_sys_git_path_h__
+#define INCLUDE_sys_git_path_h__
+
+#include "git2/common.h"
+#include "git2/types.h"
+
+GIT_BEGIN_DECL
+
+/**
+ * Check whether a path component corresponds to a .gitmodules file
+ *
+ * @param name the path component to check
+ */
+GIT_EXTERN(int) git_path_is_dotgit_modules(const char *name);
+
+/**
+ * Check whether a path component corresponds to a .gitignore file
+ *
+ * @param name the path component to check
+ */
+GIT_EXTERN(int) git_path_is_dotgit_ignore(const char *name);
+
+/**
+ * Check whether a path component corresponds to a .gitignore file
+ *
+ * @param name the path component to check
+ */
+GIT_EXTERN(int) git_path_is_dotgit_attributes(const char *name);
+
+GIT_END_DECL
+#endif

src/path.c

@@ -1853,3 +1853,13 @@ int git_path_is_dotgit_modules(const char *name)
 {
 	return !verify_dotgit_generic(name, "gitmodules", "gi7eba");
 }
+
+int git_path_is_dotgit_ignore(const char *name)
+{
+	return !verify_dotgit_generic(name, "gitignore", "gi250a");
+}
+
+int git_path_is_dotgit_attributes(const char *name)
+{
+	return !verify_dotgit_generic(name, "gitattributes", "gi7d29");
+}