Merge pull request #1642 from arrbee/diff-function-context

Diff code reorg plus function context in diff headers

1 files changed, 46 insertions, 0 deletions

diff --git a/src/diff_patch.h b/src/diff_patch.h
new file mode 100644
index 000000000..56af14600
--- /dev/null
+++ b/src/diff_patch.h
@@ -0,0 +1,46 @@
+/*
+ * 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_diff_patch_h__
+#define INCLUDE_diff_patch_h__
+
+#include "common.h"
+#include "diff.h"
+#include "diff_file.h"
+#include "array.h"
+
+extern git_diff_list *git_diff_patch__diff(git_diff_patch *);
+
+extern git_diff_driver *git_diff_patch__driver(git_diff_patch *);
+
+extern void git_diff_patch__old_data(char **, size_t *, git_diff_patch *);
+extern void git_diff_patch__new_data(char **, size_t *, git_diff_patch *);
+
+extern int git_diff_patch__invoke_callbacks(
+	git_diff_patch *patch,
+	git_diff_file_cb file_cb,
+	git_diff_hunk_cb hunk_cb,
+	git_diff_data_cb line_cb,
+	void *payload);
+
+typedef struct git_diff_output git_diff_output;
+struct git_diff_output {
+	/* these callbacks are issued with the diff data */
+	git_diff_file_cb file_cb;
+	git_diff_hunk_cb hunk_cb;
+	git_diff_data_cb data_cb;
+	void *payload;
+
+	/* this records the actual error in cases where it may be obscured */
+	int error;
+
+	/* this callback is used to do the diff and drive the other callbacks.
+	 * see diff_xdiff.h for how to use this in practice for now.
+	 */
+	int (*diff_cb)(git_diff_output *output, git_diff_patch *patch);
+};
+
+#endif