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b6691092d7
This introduces an API to plug custom filters to an input stream.
The caller gets get_stream_filter("path") to obtain an appropriate
filter for the path, and then uses it when opening an input stream
via open_istream(). After that, the caller can read from the stream
with read_istream(), and close it with close_istream(), just like an
unfiltered stream.
This only adds a "null" filter that is a pass-thru filter, but later
changes can add LF-to-CRLF and other filters, and the callers of the
streaming API do not have to change.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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* Copyright (c) 2011, Google Inc.
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*/
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#ifndef CONVERT_H
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#define CONVERT_H
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enum safe_crlf {
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SAFE_CRLF_FALSE = 0,
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SAFE_CRLF_FAIL = 1,
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SAFE_CRLF_WARN = 2
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};
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extern enum safe_crlf safe_crlf;
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enum auto_crlf {
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AUTO_CRLF_FALSE = 0,
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AUTO_CRLF_TRUE = 1,
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AUTO_CRLF_INPUT = -1
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};
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extern enum auto_crlf auto_crlf;
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enum eol {
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EOL_UNSET,
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EOL_CRLF,
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EOL_LF,
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#ifdef NATIVE_CRLF
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EOL_NATIVE = EOL_CRLF
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#else
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EOL_NATIVE = EOL_LF
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#endif
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};
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extern enum eol core_eol;
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/* returns 1 if *dst was used */
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extern int convert_to_git(const char *path, const char *src, size_t len,
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struct strbuf *dst, enum safe_crlf checksafe);
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extern int convert_to_working_tree(const char *path, const char *src,
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size_t len, struct strbuf *dst);
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extern int renormalize_buffer(const char *path, const char *src, size_t len,
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struct strbuf *dst);
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/*****************************************************************
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*
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* Streaming converison support
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*
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*****************************************************************/
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struct stream_filter; /* opaque */
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extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *);
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extern void free_stream_filter(struct stream_filter *);
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extern int is_null_stream_filter(struct stream_filter *);
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/*
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* Use as much input up to *isize_p and fill output up to *osize_p;
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* update isize_p and osize_p to indicate how much buffer space was
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* consumed and filled. Return 0 on success, non-zero on error.
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*/
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extern int stream_filter(struct stream_filter *,
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const char *input, size_t *isize_p,
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char *output, size_t *osize_p);
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#endif /* CONVERT_H */
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