Andrew's git - gitweb.git/blob

   1/*
   2 * Copyright (c) 2011, Google Inc.
   3 */
   4#ifndef CONVERT_H
   5#define CONVERT_H
   6
   7struct index_state;
   8
   9enum safe_crlf {
  10        SAFE_CRLF_FALSE = 0,
  11        SAFE_CRLF_FAIL = 1,
  12        SAFE_CRLF_WARN = 2,
  13        SAFE_CRLF_RENORMALIZE = 3,
  14        SAFE_CRLF_KEEP_CRLF = 4
  15};
  16
  17extern enum safe_crlf safe_crlf;
  18
  19enum auto_crlf {
  20        AUTO_CRLF_FALSE = 0,
  21        AUTO_CRLF_TRUE = 1,
  22        AUTO_CRLF_INPUT = -1
  23};
  24
  25extern enum auto_crlf auto_crlf;
  26
  27enum eol {
  28        EOL_UNSET,
  29        EOL_CRLF,
  30        EOL_LF,
  31#ifdef NATIVE_CRLF
  32        EOL_NATIVE = EOL_CRLF
  33#else
  34        EOL_NATIVE = EOL_LF
  35#endif
  36};
  37
  38extern enum eol core_eol;
  39extern const char *get_cached_convert_stats_ascii(const struct index_state *istate,
  40                                                  const char *path);
  41extern const char *get_wt_convert_stats_ascii(const char *path);
  42extern const char *get_convert_attr_ascii(const char *path);
  43
  44/* returns 1 if *dst was used */
  45extern int convert_to_git(const struct index_state *istate,
  46                          const char *path, const char *src, size_t len,
  47                          struct strbuf *dst, enum safe_crlf checksafe);
  48extern int convert_to_working_tree(const char *path, const char *src,
  49                                   size_t len, struct strbuf *dst);
  50extern int renormalize_buffer(const struct index_state *istate,
  51                              const char *path, const char *src, size_t len,
  52                              struct strbuf *dst);
  53static inline int would_convert_to_git(const struct index_state *istate,
  54                                       const char *path)
  55{
  56        return convert_to_git(istate, path, NULL, 0, NULL, 0);
  57}
  58/* Precondition: would_convert_to_git_filter_fd(path) == true */
  59extern void convert_to_git_filter_fd(const struct index_state *istate,
  60                                     const char *path, int fd,
  61                                     struct strbuf *dst,
  62                                     enum safe_crlf checksafe);
  63extern int would_convert_to_git_filter_fd(const char *path);
  64
  65/*****************************************************************
  66 *
  67 * Streaming conversion support
  68 *
  69 *****************************************************************/
  70
  71struct stream_filter; /* opaque */
  72
  73extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *);
  74extern void free_stream_filter(struct stream_filter *);
  75extern int is_null_stream_filter(struct stream_filter *);
  76
  77/*
  78 * Use as much input up to *isize_p and fill output up to *osize_p;
  79 * update isize_p and osize_p to indicate how much buffer space was
  80 * consumed and filled. Return 0 on success, non-zero on error.
  81 *
  82 * Some filters may need to buffer the input and look-ahead inside it
  83 * to decide what to output, and they may consume more than zero bytes
  84 * of input and still not produce any output. After feeding all the
  85 * input, pass NULL as input and keep calling this function, to let
  86 * such filters know there is no more input coming and it is time for
  87 * them to produce the remaining output based on the buffered input.
  88 */
  89extern int stream_filter(struct stream_filter *,
  90                         const char *input, size_t *isize_p,
  91                         char *output, size_t *osize_p);
  92
  93#endif /* CONVERT_H */