mercurial/bdiff.h

ui: option to preserve the progress bar

Some interface like the fast-import format of git are meant for pipe
processing. It can be still desirable to have progress bars in this
case, but clearing the bar after each output operation is not desirable.

Differential Revision: https://phab.mercurial-scm.org/D6843

#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