summaryrefslogtreecommitdiff
path: root/xdiff-interface.h
blob: 135fc05d72e8f066a63902785d12485a656efa97 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
#ifndef XDIFF_INTERFACE_H
#define XDIFF_INTERFACE_H
 
#include "cache.h"
#include "xdiff/xdiff.h"
 
/*
 * xdiff isn't equipped to handle content over a gigabyte;
 * we make the cutoff 1GB - 1MB to give some breathing
 * room for constant-sized additions (e.g., merge markers)
 */
#define MAX_XDIFF_SIZE (1024UL * 1024 * 1023)
 
typedef void (*xdiff_emit_consume_fn)(void *, char *, unsigned long);
 
int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
		  xdiff_emit_consume_fn fn, void *consume_callback_data,
		  xpparam_t const *xpp, xdemitconf_t const *xecfg);
int parse_hunk_header(char *line, int len,
		      int *ob, int *on,
		      int *nb, int *nn);
int read_mmfile(mmfile_t *ptr, const char *filename);
void read_mmblob(mmfile_t *ptr, const struct object_id *oid);
int buffer_is_binary(const char *ptr, unsigned long size);
 
extern void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);
extern void xdiff_clear_find_func(xdemitconf_t *xecfg);
extern int git_xmerge_config(const char *var, const char *value, void *cb);
extern int git_xmerge_style;
 
/*
 * Compare the strings l1 with l2 which are of size s1 and s2 respectively.
 * Returns 1 if the strings are deemed equal, 0 otherwise.
 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
 * are treated for the comparision.
 */
extern int xdiff_compare_lines(const char *l1, long s1,
			       const char *l2, long s2, long flags);
 
/*
 * Returns a hash of the string s of length len.
 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
 * are treated for the hash.
 */
extern unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
 
#endif