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https://github.com/git/git.git
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6162a1d323
We do not allow paths with a ".git" component to be added to the index, as that would mean repository contents could overwrite our repository files. However, asking "is this path the same as .git" is not as simple as strcmp() on some filesystems. HFS+'s case-folding does more than just fold uppercase into lowercase (which we already handle with strcasecmp). It may also skip past certain "ignored" Unicode code points, so that (for example) ".gi\u200ct" is mapped ot ".git". The full list of folds can be found in the tables at: https://www.opensource.apple.com/source/xnu/xnu-1504.15.3/bsd/hfs/hfscommon/Unicode/UCStringCompareData.h Implementing a full "is this path the same as that path" comparison would require us importing the whole set of tables. However, what we want to do is much simpler: we only care about checking ".git". We know that 'G' is the only thing that folds to 'g', and so on, so we really only need to deal with the set of ignored code points, which is much smaller. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
#ifndef GIT_UTF8_H
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#define GIT_UTF8_H
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typedef unsigned int ucs_char_t; /* assuming 32bit int */
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size_t display_mode_esc_sequence_len(const char *s);
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int utf8_width(const char **start, size_t *remainder_p);
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int utf8_strnwidth(const char *string, int len, int skip_ansi);
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int utf8_strwidth(const char *string);
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int is_utf8(const char *text);
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int is_encoding_utf8(const char *name);
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int same_encoding(const char *, const char *);
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__attribute__((format (printf, 2, 3)))
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int utf8_fprintf(FILE *, const char *, ...);
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void strbuf_add_wrapped_text(struct strbuf *buf,
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const char *text, int indent, int indent2, int width);
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void strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len,
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int indent, int indent2, int width);
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void strbuf_utf8_replace(struct strbuf *sb, int pos, int width,
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const char *subst);
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#ifndef NO_ICONV
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char *reencode_string_iconv(const char *in, size_t insz,
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iconv_t conv, int *outsz);
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char *reencode_string_len(const char *in, int insz,
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const char *out_encoding,
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const char *in_encoding,
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int *outsz);
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#else
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#define reencode_string_len(a,b,c,d,e) NULL
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#endif
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static inline char *reencode_string(const char *in,
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const char *out_encoding,
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const char *in_encoding)
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{
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return reencode_string_len(in, strlen(in),
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out_encoding, in_encoding,
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NULL);
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}
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int mbs_chrlen(const char **text, size_t *remainder_p, const char *encoding);
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/*
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* Returns true if the the path would match ".git" after HFS case-folding.
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* The path should be NUL-terminated, but we will match variants of both ".git\0"
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* and ".git/..." (but _not_ ".../.git"). This makes it suitable for both fsck
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* and verify_path().
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*/
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int is_hfs_dotgit(const char *path);
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#endif
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