merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 30 insertions, 0 deletions

diff --git a/third_party/git/ll-merge.h b/third_party/git/ll-merge.h
new file mode 100644
index 000000000000..b9e2af1c8840
--- /dev/null
+++ b/third_party/git/ll-merge.h
@@ -0,0 +1,30 @@
+/*
+ * Low level 3-way in-core file merge.
+ */
+
+#ifndef LL_MERGE_H
+#define LL_MERGE_H
+
+#include "xdiff/xdiff.h"
+
+struct index_state;
+
+struct ll_merge_options {
+	unsigned virtual_ancestor : 1;
+	unsigned variant : 2;	/* favor ours, favor theirs, or union merge */
+	unsigned renormalize : 1;
+	unsigned extra_marker_size;
+	long xdl_opts;
+};
+
+int ll_merge(mmbuffer_t *result_buf,
+	     const char *path,
+	     mmfile_t *ancestor, const char *ancestor_label,
+	     mmfile_t *ours, const char *our_label,
+	     mmfile_t *theirs, const char *their_label,
+	     struct index_state *istate,
+	     const struct ll_merge_options *opts);
+
+int ll_merge_marker_size(struct index_state *istate, const char *path);
+
+#endif