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1 | #ifndef XDIFF_INTERFACE_H | |
2 | #define XDIFF_INTERFACE_H | |
3 | ||
4 | #include "cache.h" | |
5 | #include "xdiff/xdiff.h" | |
6 | ||
7 | /* | |
8 | * xdiff isn't equipped to handle content over a gigabyte; | |
9 | * we make the cutoff 1GB - 1MB to give some breathing | |
10 | * room for constant-sized additions (e.g., merge markers) | |
11 | */ | |
12 | #define MAX_XDIFF_SIZE (1024UL * 1024 * 1023) | |
13 | ||
14 | typedef void (*xdiff_emit_line_fn)(void *, char *, unsigned long); | |
15 | typedef void (*xdiff_emit_hunk_fn)(void *data, | |
16 | long old_begin, long old_nr, | |
17 | long new_begin, long new_nr, | |
18 | const char *func, long funclen); | |
19 | ||
20 | int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb); | |
21 | int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2, | |
22 | xdiff_emit_hunk_fn hunk_fn, | |
23 | xdiff_emit_line_fn line_fn, | |
24 | void *consume_callback_data, | |
25 | xpparam_t const *xpp, xdemitconf_t const *xecfg); | |
26 | int read_mmfile(mmfile_t *ptr, const char *filename); | |
27 | void read_mmblob(mmfile_t *ptr, const struct object_id *oid); | |
28 | int buffer_is_binary(const char *ptr, unsigned long size); | |
29 | ||
30 | void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags); | |
31 | void xdiff_clear_find_func(xdemitconf_t *xecfg); | |
32 | int git_xmerge_config(const char *var, const char *value, void *cb); | |
33 | extern int git_xmerge_style; | |
34 | ||
35 | /* | |
36 | * Can be used as a no-op hunk_fn for xdi_diff_outf(), since a NULL | |
37 | * one just sends the hunk line to the line_fn callback). | |
38 | */ | |
39 | void discard_hunk_line(void *priv, | |
40 | long ob, long on, long nb, long nn, | |
41 | const char *func, long funclen); | |
42 | ||
43 | /* | |
44 | * Compare the strings l1 with l2 which are of size s1 and s2 respectively. | |
45 | * Returns 1 if the strings are deemed equal, 0 otherwise. | |
46 | * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces | |
47 | * are treated for the comparision. | |
48 | */ | |
49 | int xdiff_compare_lines(const char *l1, long s1, | |
50 | const char *l2, long s2, long flags); | |
51 | ||
52 | /* | |
53 | * Returns a hash of the string s of length len. | |
54 | * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces | |
55 | * are treated for the hash. | |
56 | */ | |
57 | unsigned long xdiff_hash_string(const char *s, size_t len, long flags); | |
58 | ||
59 | #endif |