graft: let caller pass in overlayworkingctx to merge.graft()
Passing in a different `wctx` than `repo[None]` is useful because it
allows the caller to decide to not touch the working directory.
Differential Revision: https://phab.mercurial-scm.org/D8026
#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_
#include "compat.h"
struct bdiff_line {
int hash, n, e;
ssize_t len;
const char *l;
};
struct bdiff_hunk;
struct bdiff_hunk {
int a1, a2, b1, b2;
struct bdiff_hunk *next;
};
int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);
int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,
struct bdiff_hunk *base);
void bdiff_freehunks(struct bdiff_hunk *l);
#endif