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); 43static inline int would_convert_to_git(const char *path) 44{ 45 return convert_to_git(path, NULL, 0, NULL, 0); 46} 47/* Precondition: would_convert_to_git_filter_fd(path) == true */ 48extern void convert_to_git_filter_fd(const char *path, int fd, 49 struct strbuf *dst, 50 enum safe_crlf checksafe); 51extern int would_convert_to_git_filter_fd(const char *path); 52 53/***************************************************************** 54 * 55 * Streaming conversion support 56 * 57 *****************************************************************/ 58 59struct stream_filter; /* opaque */ 60 61extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *); 62extern void free_stream_filter(struct stream_filter *); 63extern int is_null_stream_filter(struct stream_filter *); 64 65/* 66 * Use as much input up to *isize_p and fill output up to *osize_p; 67 * update isize_p and osize_p to indicate how much buffer space was 68 * consumed and filled. Return 0 on success, non-zero on error. 69 * 70 * Some filters may need to buffer the input and look-ahead inside it 71 * to decide what to output, and they may consume more than zero bytes 72 * of input and still not produce any output. After feeding all the 73 * input, pass NULL as input and keep calling this function, to let 74 * such filters know there is no more input coming and it is time for 75 * them to produce the remaining output based on the buffered input. 76 */ 77extern int stream_filter(struct stream_filter *, 78 const char *input, size_t *isize_p, 79 char *output, size_t *osize_p); 80 81#endif /* CONVERT_H */