view mercurial/bdiff.h @ 43114:8197b395710e

destutil: provide hint on rebase+merge for how to specify destination/rev

Without a destination specified, rebase and merge attempt to identify a good
candidate; this fails if there's too many heads, the heads have a bookmark, or
other reasons.

Complicating the issue, users may have specified -t, thinking it means target,
and are confused when the error message says that they need to specify an
explicit rev or explicit destination - they feel like they already have.

Differential Revision: https://phab.mercurial-scm.org/D7024

#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