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Squashed 'third_party/git/' content from commit cb71568594

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git-subtree-dir: third_party/git
git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7
This commit is contained in:
Vincent Ambo 2020-01-11 23:36:56 +00:00
commit 1b593e1ea4
3629 changed files with 1139935 additions and 0 deletions
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59
xdiff-interface.h Normal file
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#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_line_fn)(void *, char *, unsigned long);
typedef void (*xdiff_emit_hunk_fn)(void *data,
long old_begin, long old_nr,
long new_begin, long new_nr,
const char *func, long funclen);
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_hunk_fn hunk_fn,
xdiff_emit_line_fn line_fn,
void *consume_callback_data,
xpparam_t const *xpp, xdemitconf_t const *xecfg);
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);
void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);
void xdiff_clear_find_func(xdemitconf_t *xecfg);
int git_xmerge_config(const char *var, const char *value, void *cb);
extern int git_xmerge_style;
/*
* Can be used as a no-op hunk_fn for xdi_diff_outf(), since a NULL
* one just sends the hunk line to the line_fn callback).
*/
void discard_hunk_line(void *priv,
long ob, long on, long nb, long nn,
const char *func, long funclen);
/*
* 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.
*/
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.
*/
unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
#endif