trailer.h

   1 #ifndef TRAILER_H
   2 #define TRAILER_H
   3
   4 #include "list.h"
   5
   6 struct strbuf;
   7
   8 enum trailer_where {
   9         WHERE_DEFAULT,
  10         WHERE_END,
  11         WHERE_AFTER,
  12         WHERE_BEFORE,
  13         WHERE_START
  14 };
  15 enum trailer_if_exists {
  16         EXISTS_DEFAULT,
  17         EXISTS_ADD_IF_DIFFERENT_NEIGHBOR,
  18         EXISTS_ADD_IF_DIFFERENT,
  19         EXISTS_ADD,
  20         EXISTS_REPLACE,
  21         EXISTS_DO_NOTHING
  22 };
  23 enum trailer_if_missing {
  24         MISSING_DEFAULT,
  25         MISSING_ADD,
  26         MISSING_DO_NOTHING
  27 };
  28
  29 int trailer_set_where(enum trailer_where *item, const char *value);
  30 int trailer_set_if_exists(enum trailer_if_exists *item, const char *value);
  31 int trailer_set_if_missing(enum trailer_if_missing *item, const char *value);
  32
  33 struct trailer_info {
  34         /*
  35          * True if there is a blank line before the location pointed to by
  36          * trailer_start.
  37          */
  38         int blank_line_before_trailer;
  39
  40         /*
  41          * Pointers to the start and end of the trailer block found. If there
  42          * is no trailer block found, these 2 pointers point to the end of the
  43          * input string.
  44          */
  45         const char *trailer_start, *trailer_end;
  46
  47         /*
  48          * Array of trailers found.
  49          */
  50         char **trailers;
  51         size_t trailer_nr;
  52 };
  53
  54 /*
  55  * A list that represents newly-added trailers, such as those provided
  56  * with the --trailer command line option of git-interpret-trailers.
  57  */
  58 struct new_trailer_item {
  59         struct list_head list;
  60
  61         const char *text;
  62
  63         enum trailer_where where;
  64         enum trailer_if_exists if_exists;
  65         enum trailer_if_missing if_missing;
  66 };
  67
  68 struct process_trailer_options {
  69         int in_place;
  70         int trim_empty;
  71         int only_trailers;
  72         int only_input;
  73         int unfold;
  74         int no_divider;
  75 };
  76
  77 #define PROCESS_TRAILER_OPTIONS_INIT {0}
  78
  79 void process_trailers(const char *file,
  80                       const struct process_trailer_options *opts,
  81                       struct list_head *new_trailer_head);
  82
  83 void trailer_info_get(struct trailer_info *info, const char *str,
  84                       const struct process_trailer_options *opts);
  85
  86 void trailer_info_release(struct trailer_info *info);
  87
  88 /*
  89  * Format the trailers from the commit msg "msg" into the strbuf "out".
  90  * Note two caveats about "opts":
  91  *
  92  *   - this is primarily a helper for pretty.c, and not
  93  *     all of the flags are supported.
  94  *
  95  *   - this differs from process_trailers slightly in that we always format
  96  *     only the trailer block itself, even if the "only_trailers" option is not
  97  *     set.
  98  */
  99 void format_trailers_from_commit(struct strbuf *out, const char *msg,
 100                                  const struct process_trailer_options *opts);
 101
 102 #endif /* TRAILER_H */