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#ifndef _SUPPORT_GRDIFF_H_
#define _SUPPORT_GRDIFF_H_
#include "gutils.h"
#include "gstats.h"
#include "gstring.h"
#include "gpath.h"
#include "gtree.h"
#include "headers.h"
/*
* unzips all rdiff-backup mirror_metadata files in a given directory
*
* @1: path to the directory with mirror_metada
* @2: path to where unzipped files should be copied
*
* returns: 0 on success, -1 otherwise
*/
int unzip_revs(char *, char *);
/*
* counts all rdiff-backup mirror_metada files in a given directory
*
* @1: path to the directory
*
* returns: number of revisions on success, -1 otherwise
*/
int count_revs(char *);
/*
* returns gmt time of revision creation
*
* @1: filename of revision's mirror_metadata file
*
* returns: gmt time on success, -1 otherwise
*/
time_t get_revs_date(char *);
/*
* returns name of directory for a revision
*
* @1: filename of revision's mirror_metadata file
*
* returns: name of directory on success, NULL otherwise
*/
char* get_revs_dir(char *);
/*
* read single portion of file stats from a stream
*
* @1: location of stats structure, where information should be set
* @2: file stream
*
* returns: 0 on success, -1 otherwise
*/
int read_stats(struct stats *stats, FILE *file);
int get_revisions(struct file_system_info *, char *, int);
/*
* adds given revision to target file in a given directory
*
* @1: revision file name to be added
* @2: target file name
* @3: directory where both files are stored
*/
int add_snapshot(char *, char *, char *);
/*
* copy given revision to target file in a given directory
*
* @1: revision file name to be copied
* @2: target file name
* @3: directory where both files are stored
*
* returns: 0 on sucess, -1 otherwise
*/
int snapshot_copy(char *, char *, char *);
/*
* append given revision to target file in a given directory
*
* @1: revision file name to be appended
* @2: target file name
* @3: directory where both files are stored
*
* returns: 0 on sucess, -1 otherwise
*/
int snapshot_append(char *, char *, char *);
int update_tree(tree_t, stats_t *, char *);
/*
* finds and unzips revision from the given repository
*
* @1: path to the rdiff-backup repository
* @2: path to directory where revisions should be unzipped
* @3: pointer which will point to allocated memory with revision names
*
* returns: number of revisions found on success, -1 otherwise
*/
int gather_revisions(struct file_system_info *, char *, char *);
/*
* adds repository stat to a structure tree
*
* @1: repository name
* @2: tree with structure
*
* returns: returns 0 on sucess, -1 otherwise
*/
int add_repo_dir(char *, tree_t);
#endif
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