xdiff-interface.h

   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_consume_fn)(void *, char *, unsigned long);
  15
  16 int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
  17 int 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);
  20 int parse_hunk_header(char *line, int len,
  21                       int *ob, int *on,
  22                       int *nb, int *nn);
  23 int read_mmfile(mmfile_t *ptr, const char *filename);
  24 void read_mmblob(mmfile_t *ptr, const struct object_id *oid);
  25 int buffer_is_binary(const char *ptr, unsigned long size);
  26
  27 extern void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);
  28 extern void xdiff_clear_find_func(xdemitconf_t *xecfg);
  29 extern int git_xmerge_config(const char *var, const char *value, void *cb);
  30 extern 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  */
  38 extern 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  */
  46 extern unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
  47
  48 #endif