trailer.h

   1 #ifndef TRAILER_H
   2 #define TRAILER_H
   3
   4 #include "list.h"
   5
   6 enum trailer_where {
   7         WHERE_DEFAULT,
   8         WHERE_END,
   9         WHERE_AFTER,
  10         WHERE_BEFORE,
  11         WHERE_START
  12 };
  13 enum trailer_if_exists {
  14         EXISTS_DEFAULT,
  15         EXISTS_ADD_IF_DIFFERENT_NEIGHBOR,
  16         EXISTS_ADD_IF_DIFFERENT,
  17         EXISTS_ADD,
  18         EXISTS_REPLACE,
  19         EXISTS_DO_NOTHING
  20 };
  21 enum trailer_if_missing {
  22         MISSING_DEFAULT,
  23         MISSING_ADD,
  24         MISSING_DO_NOTHING
  25 };
  26
  27 int trailer_set_where(enum trailer_where *item, const char *value);
  28 int trailer_set_if_exists(enum trailer_if_exists *item, const char *value);
  29 int trailer_set_if_missing(enum trailer_if_missing *item, const char *value);
  30
  31 struct trailer_info {
  32         /*
  33          * True if there is a blank line before the location pointed to by
  34          * trailer_start.
  35          */
  36         int blank_line_before_trailer;
  37
  38         /*
  39          * Pointers to the start and end of the trailer block found. If there
  40          * is no trailer block found, these 2 pointers point to the end of the
  41          * input string.
  42          */
  43         const char *trailer_start, *trailer_end;
  44
  45         /*
  46          * Array of trailers found.
  47          */
  48         char **trailers;
  49         size_t trailer_nr;
  50 };
  51
  52 /*
  53  * A list that represents newly-added trailers, such as those provided
  54  * with the --trailer command line option of git-interpret-trailers.
  55  */
  56 struct new_trailer_item {
  57         struct list_head list;
  58
  59         const char *text;
  60
  61         enum trailer_where where;
  62         enum trailer_if_exists if_exists;
  63         enum trailer_if_missing if_missing;
  64 };
  65
  66 struct process_trailer_options {
  67         int in_place;
  68         int trim_empty;
  69         int only_trailers;
  70         int only_input;
  71         int unfold;
  72 };
  73
  74 #define PROCESS_TRAILER_OPTIONS_INIT {0}
  75
  76 void process_trailers(const char *file,
  77                       const struct process_trailer_options *opts,
  78                       struct list_head *new_trailer_head);
  79
  80 void trailer_info_get(struct trailer_info *info, const char *str,
  81                       const struct process_trailer_options *opts);
  82
  83 void trailer_info_release(struct trailer_info *info);
  84
  85 /*
  86  * Format the trailers from the commit msg "msg" into the strbuf "out".
  87  * Note two caveats about "opts":
  88  *
  89  *   - this is primarily a helper for pretty.c, and not
  90  *     all of the flags are supported.
  91  *
  92  *   - this differs from process_trailers slightly in that we always format
  93  *     only the trailer block itself, even if the "only_trailers" option is not
  94  *     set.
  95  */
  96 void format_trailers_from_commit(struct strbuf *out, const char *msg,
  97                                  const struct process_trailer_options *opts);
  98
  99 #endif /* TRAILER_H */