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};
  15
  16extern enum safe_crlf safe_crlf;
  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
  37extern enum eol core_eol;
  38extern const char *get_cached_convert_stats_ascii(const struct index_state *istate,
  39                                                  const char *path);
  40extern const char *get_wt_convert_stats_ascii(const char *path);
  41extern const char *get_convert_attr_ascii(const char *path);
  42
  43/* returns 1 if *dst was used */
  44extern int convert_to_git(const struct index_state *istate,
  45                          const char *path, const char *src, size_t len,
  46                          struct strbuf *dst, enum safe_crlf checksafe);
  47extern int convert_to_working_tree(const char *path, const char *src,
  48                                   size_t len, struct strbuf *dst);
  49extern int renormalize_buffer(const struct index_state *istate,
  50                              const char *path, const char *src, size_t len,
  51                              struct strbuf *dst);
  52static inline int would_convert_to_git(const struct index_state *istate,
  53                                       const char *path)
  54{
  55        return convert_to_git(istate, path, NULL, 0, NULL, 0);
  56}
  57/* Precondition: would_convert_to_git_filter_fd(path) == true */
  58extern void convert_to_git_filter_fd(const struct index_state *istate,
  59                                     const char *path, int fd,
  60                                     struct strbuf *dst,
  61                                     enum safe_crlf checksafe);
  62extern int would_convert_to_git_filter_fd(const char *path);
  63
  64/*****************************************************************
  65 *
  66 * Streaming conversion support
  67 *
  68 *****************************************************************/
  69
  70struct stream_filter; /* opaque */
  71
  72extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *);
  73extern void free_stream_filter(struct stream_filter *);
  74extern int is_null_stream_filter(struct stream_filter *);
  75
  76/*
  77 * Use as much input up to *isize_p and fill output up to *osize_p;
  78 * update isize_p and osize_p to indicate how much buffer space was
  79 * consumed and filled. Return 0 on success, non-zero on error.
  80 *
  81 * Some filters may need to buffer the input and look-ahead inside it
  82 * to decide what to output, and they may consume more than zero bytes
  83 * of input and still not produce any output. After feeding all the
  84 * input, pass NULL as input and keep calling this function, to let
  85 * such filters know there is no more input coming and it is time for
  86 * them to produce the remaining output based on the buffered input.
  87 */
  88extern int stream_filter(struct stream_filter *,
  89                         const char *input, size_t *isize_p,
  90                         char *output, size_t *osize_p);
  91
  92#endif /* CONVERT_H */