copy_fd(): do not close the input file descriptor
[git/git.git] / convert.h
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1/*
2 * Copyright (c) 2011, Google Inc.
3 */
4#ifndef CONVERT_H
5#define CONVERT_H
6
7enum safe_crlf {
8 SAFE_CRLF_FALSE = 0,
9 SAFE_CRLF_FAIL = 1,
10 SAFE_CRLF_WARN = 2
11};
12
13extern enum safe_crlf safe_crlf;
14
15enum auto_crlf {
16 AUTO_CRLF_FALSE = 0,
17 AUTO_CRLF_TRUE = 1,
18 AUTO_CRLF_INPUT = -1
19};
20
21extern enum auto_crlf auto_crlf;
22
23enum eol {
24 EOL_UNSET,
25 EOL_CRLF,
26 EOL_LF,
27#ifdef NATIVE_CRLF
28 EOL_NATIVE = EOL_CRLF
29#else
30 EOL_NATIVE = EOL_LF
31#endif
32};
33
34extern enum eol core_eol;
35
36/* returns 1 if *dst was used */
37extern int convert_to_git(const char *path, const char *src, size_t len,
38 struct strbuf *dst, enum safe_crlf checksafe);
39extern int convert_to_working_tree(const char *path, const char *src,
40 size_t len, struct strbuf *dst);
41extern int renormalize_buffer(const char *path, const char *src, size_t len,
42 struct strbuf *dst);
7ce7c760 43static inline int would_convert_to_git(const char *path)
92ac3197 44{
7ce7c760 45 return convert_to_git(path, NULL, 0, NULL, 0);
92ac3197 46}
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47
48/*****************************************************************
49 *
749f763d 50 * Streaming conversion support
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51 *
52 *****************************************************************/
53
54struct stream_filter; /* opaque */
55
56extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *);
57extern void free_stream_filter(struct stream_filter *);
58extern int is_null_stream_filter(struct stream_filter *);
59
60/*
61 * Use as much input up to *isize_p and fill output up to *osize_p;
62 * update isize_p and osize_p to indicate how much buffer space was
63 * consumed and filled. Return 0 on success, non-zero on error.
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64 *
65 * Some filters may need to buffer the input and look-ahead inside it
66 * to decide what to output, and they may consume more than zero bytes
67 * of input and still not produce any output. After feeding all the
68 * input, pass NULL as input and keep calling this function, to let
69 * such filters know there is no more input coming and it is time for
70 * them to produce the remaining output based on the buffered input.
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71 */
72extern int stream_filter(struct stream_filter *,
73 const char *input, size_t *isize_p,
74 char *output, size_t *osize_p);
75
d1bf0e08 76#endif /* CONVERT_H */