1 files changed, 106 insertions, 0 deletions
diff --git a/revision.h b/revision.h
new file mode 100644
index 0000000000..7d85b0f2e9
--- /dev/null
+++ b/revision.h
@@ -0,0 +1,106 @@
+#ifndef REVISION_H
+#define REVISION_H
+
+#define SEEN		(1u<<0)
+#define UNINTERESTING   (1u<<1)
+#define TREECHANGE	(1u<<2)
+#define SHOWN		(1u<<3)
+#define TMP_MARK	(1u<<4) /* for isolated cases; clean after use */
+#define BOUNDARY	(1u<<5)
+#define BOUNDARY_SHOW	(1u<<6)
+#define ADDED		(1u<<7)	/* Parents already parsed and added? */
+
+struct rev_info;
+struct log_info;
+
+typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
+
+struct rev_info {
+	/* Starting list */
+	struct commit_list *commits;
+	struct object_list *pending_objects;
+
+	/* Basic information */
+	const char *prefix;
+	void *prune_data;
+	prune_fn_t *prune_fn;
+
+	/* Traversal flags */
+	unsigned int	dense:1,
+			no_merges:1,
+			no_walk:1,
+			remove_empty_trees:1,
+			lifo:1,
+			topo_order:1,
+			tag_objects:1,
+			tree_objects:1,
+			blob_objects:1,
+			edge_hint:1,
+			limited:1,
+			unpacked:1,
+			boundary:1,
+			parents:1;
+
+	/* Diff flags */
+	unsigned int	diff:1,
+			full_diff:1,
+			show_root_diff:1,
+			no_commit_id:1,
+			verbose_header:1,
+			ignore_merges:1,
+			combine_merges:1,
+			dense_combined_merges:1,
+			always_show_header:1;
+
+	/* Format info */
+	unsigned int	shown_one:1,
+			abbrev_commit:1;
+	unsigned int	abbrev;
+	enum cmit_fmt	commit_format;
+	struct log_info *loginfo;
+	int		nr, total;
+	const char	*mime_boundary;
+	const char	*add_signoff;
+	const char	*extra_headers;
+
+	/* special limits */
+	int max_count;
+	unsigned long max_age;
+	unsigned long min_age;
+
+	/* diff info for patches and for paths limiting */
+	struct diff_options diffopt;
+	struct diff_options pruning;
+
+	topo_sort_set_fn_t topo_setter;
+	topo_sort_get_fn_t topo_getter;
+};
+
+#define REV_TREE_SAME		0
+#define REV_TREE_NEW		1
+#define REV_TREE_DIFFERENT	2
+
+/* revision.c */
+extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
+extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
+
+extern void init_revisions(struct rev_info *revs);
+extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
+extern void prepare_revision_walk(struct rev_info *revs);
+extern struct commit *get_revision(struct rev_info *revs);
+
+extern void mark_parents_uninteresting(struct commit *commit);
+extern void mark_tree_uninteresting(struct tree *tree);
+
+struct name_path {
+	struct name_path *up;
+	int elem_len;
+	const char *elem;
+};
+
+extern struct object_list **add_object(struct object *obj,
+				       struct object_list **p,
+				       struct name_path *path,
+				       const char *name);
+
+#endif