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 14typedef void (*xdiff_emit_consume_fn)(void *, char *, unsigned long); 15 16int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb); 17int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2, 18 xdiff_emit_consume_fn fn, void *consume_callback_data, 19 xpparam_t const *xpp, xdemitconf_t const *xecfg); 20int parse_hunk_header(char *line, int len, 21 int *ob, int *on, 22 int *nb, int *nn); 23int read_mmfile(mmfile_t *ptr, const char *filename); 24void read_mmblob(mmfile_t *ptr, const struct object_id *oid); 25int buffer_is_binary(const char *ptr, unsigned long size); 26 27extern void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags); 28extern void xdiff_clear_find_func(xdemitconf_t *xecfg); 29extern int git_xmerge_config(const char *var, const char *value, void *cb); 30extern int git_xmerge_style; 31 32/* 33 * Compare the strings l1 with l2 which are of size s1 and s2 respectively. 34 * Returns 1 if the strings are deemed equal, 0 otherwise. 35 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces 36 * are treated for the comparision. 37 */ 38extern int xdiff_compare_lines(const char *l1, long s1, 39 const char *l2, long s2, long flags); 40 41/* 42 * Returns a hash of the string s of length len. 43 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces 44 * are treated for the hash. 45 */ 46extern unsigned long xdiff_hash_string(const char *s, size_t len, long flags); 47 48#endif