line-log.h

   1 #ifndef LINE_LOG_H
   2 #define LINE_LOG_H
   3
   4 struct rev_info;
   5 struct commit;
   6 struct string_list;
   7
   8 /* A range [start,end].  Lines are numbered starting at 0, and the
   9  * ranges include start but exclude end. */
  10 struct range {
  11         long start, end;
  12 };
  13
  14 /* A set of ranges.  The ranges must always be disjoint and sorted. */
  15 struct range_set {
  16         unsigned int alloc, nr;
  17         struct range *ranges;
  18 };
  19
  20 /* A diff, encoded as the set of pre- and post-image ranges where the
  21  * files differ. A pair of ranges corresponds to a hunk. */
  22 struct diff_ranges {
  23         struct range_set parent;
  24         struct range_set target;
  25 };
  26
  27 void range_set_init(struct range_set *, size_t prealloc);
  28 void range_set_release(struct range_set *);
  29 /* Range includes start; excludes end */
  30 void range_set_append_unsafe(struct range_set *, long start, long end);
  31 /* New range must begin at or after end of last added range */
  32 void range_set_append(struct range_set *, long start, long end);
  33 /*
  34  * In-place pass of sorting and merging the ranges in the range set,
  35  * to sort and make the ranges disjoint.
  36  */
  37 void sort_and_merge_range_set(struct range_set *);
  38
  39 /* Linked list of interesting files and their associated ranges.  The
  40  * list must be kept sorted by path.
  41  *
  42  * For simplicity, even though this is highly redundant, each
  43  * line_log_data owns its 'path'.
  44  */
  45 struct line_log_data {
  46         struct line_log_data *next;
  47         char *path;
  48         struct range_set ranges;
  49         struct diff_filepair *pair;
  50         struct diff_ranges diff;
  51 };
  52
  53 void line_log_init(struct rev_info *rev, const char *prefix, struct string_list *args);
  54
  55 int line_log_filter(struct rev_info *rev);
  56 int line_log_process_ranges_arbitrary_commit(struct rev_info *rev,
  57                                                     struct commit *commit);
  58
  59 int line_log_print(struct rev_info *rev, struct commit *commit);
  60
  61 void line_log_free(struct rev_info *rev);
  62
  63 #endif /* LINE_LOG_H */