view mercurial/mpatch.h @ 41591:4d4842445afc

revert: always show relative path to .orig backup

This helps make some future patches easier when I replace origpath()
by another function that works with repo-relative paths (origpath()
works with cwd-relative paths).

Always showing a relative path seems a little more user-friendly and
is more consistent between configured ui.origbackuppath and not. OTOH,
it's annoying if ui.origbackuppath is far outside the repo. This is
just --verbose output, so I don't think it's worth spending much time
on (I've already wasted too many hours on it).

Differential Revision: https://phab.mercurial-scm.org/D5871

#ifndef _HG_MPATCH_H_
#define _HG_MPATCH_H_

#define MPATCH_ERR_NO_MEM -3
#define MPATCH_ERR_CANNOT_BE_DECODED -2
#define MPATCH_ERR_INVALID_PATCH -1

struct mpatch_frag {
	int start, end, len;
	const char *data;
};

struct mpatch_flist {
	struct mpatch_frag *base, *head, *tail;
};

int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);
ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);
void mpatch_lfree(struct mpatch_flist *a);
int mpatch_apply(char *buf, const char *orig, ssize_t len,
                 struct mpatch_flist *l);
struct mpatch_flist *
mpatch_fold(void *bins, struct mpatch_flist *(*get_next_item)(void *, ssize_t),
            ssize_t start, ssize_t end);

#endif