f4609b896f
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because there is some breakage in the git build related to the netrc credentials helper which someone has taken care of in nixpkgs. The stable channel is not used for anything other than git, so this should be fine. Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
59 lines
2 KiB
C
59 lines
2 KiB
C
#ifndef XDIFF_INTERFACE_H
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#define XDIFF_INTERFACE_H
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#include "cache.h"
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#include "xdiff/xdiff.h"
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/*
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* xdiff isn't equipped to handle content over a gigabyte;
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* we make the cutoff 1GB - 1MB to give some breathing
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* room for constant-sized additions (e.g., merge markers)
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*/
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#define MAX_XDIFF_SIZE (1024UL * 1024 * 1023)
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typedef void (*xdiff_emit_line_fn)(void *, char *, unsigned long);
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typedef void (*xdiff_emit_hunk_fn)(void *data,
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long old_begin, long old_nr,
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long new_begin, long new_nr,
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const char *func, long funclen);
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int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
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int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
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xdiff_emit_hunk_fn hunk_fn,
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xdiff_emit_line_fn line_fn,
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void *consume_callback_data,
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xpparam_t const *xpp, xdemitconf_t const *xecfg);
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int read_mmfile(mmfile_t *ptr, const char *filename);
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void read_mmblob(mmfile_t *ptr, const struct object_id *oid);
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int buffer_is_binary(const char *ptr, unsigned long size);
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void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);
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void xdiff_clear_find_func(xdemitconf_t *xecfg);
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int git_xmerge_config(const char *var, const char *value, void *cb);
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extern int git_xmerge_style;
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/*
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* Can be used as a no-op hunk_fn for xdi_diff_outf(), since a NULL
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* one just sends the hunk line to the line_fn callback).
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*/
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void discard_hunk_line(void *priv,
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long ob, long on, long nb, long nn,
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const char *func, long funclen);
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/*
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* Compare the strings l1 with l2 which are of size s1 and s2 respectively.
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* Returns 1 if the strings are deemed equal, 0 otherwise.
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* The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
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* are treated for the comparison.
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*/
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int xdiff_compare_lines(const char *l1, long s1,
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const char *l2, long s2, long flags);
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/*
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* Returns a hash of the string s of length len.
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* The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
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* are treated for the hash.
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*/
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unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
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#endif
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