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#ifndef REVELA_FS_H
#define REVELA_FS_H
#include <stdbool.h>
#include <sys/stat.h>
#include "hmap.h"
typedef bool (*preremove_fn)(const char *path, void *data);
enum nmkdir_res {
NMKDIR_ERROR,
NMKDIR_NOOP,
NMKDIR_CREATED,
};
/*
* Returns a pointer to where the basename of the file is inside path.
*/
const char *rbasename(const char *path);
/*
* Makes a new directory if it doesn't exist. If there were errors returns
* false, otherwise returns true.
*/
enum nmkdir_res nmkdir(const char *path, struct stat *dstat, bool dry);
#define joinpathb(buf, a, b) sprintf(buf, "%s/%s", a, b)
/*
* Joins two paths into one, e.g. /hello, word -> /hello/world
* This function allocates a new string and returns it.
*/
char *joinpath(const char *restrict a, const char *restrict b);
bool isimage(const char *fname);
/*
* Removes extension from file name "e.g. pepe.gif -> pepe. Returns a pointer to
* location of the extension in the string.
*/
const char *delext(const char *restrict basename, char *restrict dest, size_t n);
#define TIMEQUAL(a, b) \
((a).tv_sec == (b).tv_sec && (a).tv_nsec == (b).tv_nsec)
/*
* -1 if error; 0 if the timestamps are different; 1 if they are equal.
*/
int file_is_uptodate(const char *path, const struct timespec *srcmtim);
/*
* Sets access and modification times to the time passed.
*/
void setdatetime(const char *path, const struct timespec *mtim);
bool rmentry(const char *path, bool dry);
/*
* Recursively deletes extaneous files from directory, keeping files in the
* preserved hmap. Returns -1 on error, number of deleted entries on success.
* The number is not the total number of files on all subdirectories, but only
* the number of files/dirs deleted from the directory pointed by path.
*/
ssize_t rmextra(const char *path, struct hmap *preserved, preremove_fn,
void *data, bool dry);
/*
* Copies file(s) truncating and overwritting the file(s) in the destination
* path if they exist and are not a directory, or creating them if they don't
* exist. If srcpath is a directory, copies all files within that directory
* recursively. Only copies the regular files that already exist if their
* timestamps do not match.
*/
bool filesync(const char *restrict srcpath, const char *restrict dstpath,
struct hmap *preserved, bool dry);
#endif
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