1/* 2 * Copyright (c) 2011, Google Inc. 3 */ 4#ifndef CONVERT_H 5#define CONVERT_H 6 7#include "string-list.h" 8 9struct index_state; 10 11#define CONV_EOL_RNDTRP_DIE (1<<0) /* Die if CRLF to LF to CRLF is different */ 12#define CONV_EOL_RNDTRP_WARN (1<<1) /* Warn if CRLF to LF to CRLF is different */ 13#define CONV_EOL_RENORMALIZE (1<<2) /* Convert CRLF to LF */ 14#define CONV_EOL_KEEP_CRLF (1<<3) /* Keep CRLF line endings as is */ 15 16extern int global_conv_flags_eol; 17 18enum auto_crlf { 19 AUTO_CRLF_FALSE = 0, 20 AUTO_CRLF_TRUE = 1, 21 AUTO_CRLF_INPUT = -1 22}; 23 24extern enum auto_crlf auto_crlf; 25 26enum eol { 27 EOL_UNSET, 28 EOL_CRLF, 29 EOL_LF, 30#ifdef NATIVE_CRLF 31 EOL_NATIVE = EOL_CRLF 32#else 33 EOL_NATIVE = EOL_LF 34#endif 35}; 36 37enum ce_delay_state { 38 CE_NO_DELAY = 0, 39 CE_CAN_DELAY = 1, 40 CE_RETRY = 2 41}; 42 43struct delayed_checkout { 44 /* 45 * State of the currently processed cache entry. If the state is 46 * CE_CAN_DELAY, then the filter can delay the current cache entry. 47 * If the state is CE_RETRY, then this signals the filter that the 48 * cache entry was requested before. 49 */ 50 enum ce_delay_state state; 51 /* List of filter drivers that signaled delayed blobs. */ 52 struct string_list filters; 53 /* List of delayed blobs identified by their path. */ 54 struct string_list paths; 55}; 56 57extern enum eol core_eol; 58extern const char *get_cached_convert_stats_ascii(const struct index_state *istate, 59 const char *path); 60extern const char *get_wt_convert_stats_ascii(const char *path); 61extern const char *get_convert_attr_ascii(const char *path); 62 63/* returns 1 if *dst was used */ 64extern int convert_to_git(const struct index_state *istate, 65 const char *path, const char *src, size_t len, 66 struct strbuf *dst, int conv_flags); 67extern int convert_to_working_tree(const char *path, const char *src, 68 size_t len, struct strbuf *dst); 69extern int async_convert_to_working_tree(const char *path, const char *src, 70 size_t len, struct strbuf *dst, 71 void *dco); 72extern int async_query_available_blobs(const char *cmd, struct string_list *available_paths); 73extern int renormalize_buffer(const struct index_state *istate, 74 const char *path, const char *src, size_t len, 75 struct strbuf *dst); 76static inline int would_convert_to_git(const struct index_state *istate, 77 const char *path) 78{ 79 return convert_to_git(istate, path, NULL, 0, NULL, 0); 80} 81/* Precondition: would_convert_to_git_filter_fd(path) == true */ 82extern void convert_to_git_filter_fd(const struct index_state *istate, 83 const char *path, int fd, 84 struct strbuf *dst, 85 int conv_flags); 86extern int would_convert_to_git_filter_fd(const char *path); 87 88/***************************************************************** 89 * 90 * Streaming conversion support 91 * 92 *****************************************************************/ 93 94struct stream_filter; /* opaque */ 95 96extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *); 97extern void free_stream_filter(struct stream_filter *); 98extern int is_null_stream_filter(struct stream_filter *); 99 100/* 101 * Use as much input up to *isize_p and fill output up to *osize_p; 102 * update isize_p and osize_p to indicate how much buffer space was 103 * consumed and filled. Return 0 on success, non-zero on error. 104 * 105 * Some filters may need to buffer the input and look-ahead inside it 106 * to decide what to output, and they may consume more than zero bytes 107 * of input and still not produce any output. After feeding all the 108 * input, pass NULL as input and keep calling this function, to let 109 * such filters know there is no more input coming and it is time for 110 * them to produce the remaining output based on the buffered input. 111 */ 112extern int stream_filter(struct stream_filter *, 113 const char *input, size_t *isize_p, 114 char *output, size_t *osize_p); 115 116#endif /* CONVERT_H */