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#ifndef COMMIT_H
#define COMMIT_H
 
#include "object.h"
#include "tree.h"
 
struct commit_list {
	struct commit *item;
	struct commit_list *next;
};
 
struct commit {
	struct object object;
	unsigned long date;
	struct commit_list *parents;
	struct tree *tree;
};
 
extern const char *commit_type;
 
struct commit *lookup_commit(unsigned char *sha1);
struct commit *lookup_commit_reference(unsigned char *sha1);
 
int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
 
int parse_commit(struct commit *item);
 
void commit_list_insert(struct commit *item, struct commit_list **list_p);
 
void free_commit_list(struct commit_list *list);
 
void sort_by_date(struct commit_list **list);
 
/** Removes the first commit from a list sorted by date, and adds all
 * of its parents.
 **/
struct commit *pop_most_recent_commit(struct commit_list **list, 
				      unsigned int mark);
 
#endif /* COMMIT_H */