line-log.h

   1 #ifndef LINE_LOG_H
   2 #define LINE_LOG_H
   3
   4 #include "diffcore.h"
   5
   6 struct rev_info;
   7 struct commit;
   8 struct string_list;
   9
  10 /* A range [start,end].  Lines are numbered starting at 0, and the
  11  * ranges include start but exclude end. */
  12 struct range {
  13         long start, end;
  14 };
  15
  16 /* A set of ranges.  The ranges must always be disjoint and sorted. */
  17 struct range_set {
  18         unsigned int alloc, nr;
  19         struct range *ranges;
  20 };
  21
  22 /* A diff, encoded as the set of pre- and post-image ranges where the
  23  * files differ. A pair of ranges corresponds to a hunk. */
  24 struct diff_ranges {
  25         struct range_set parent;
  26         struct range_set target;
  27 };
  28
  29 void range_set_init(struct range_set *, size_t prealloc);
  30 void range_set_release(struct range_set *);
  31 /* Range includes start; excludes end */
  32 void range_set_append_unsafe(struct range_set *, long start, long end);
  33 /* New range must begin at or after end of last added range */
  34 void range_set_append(struct range_set *, long start, long end);
  35 /*
  36  * In-place pass of sorting and merging the ranges in the range set,
  37  * to sort and make the ranges disjoint.
  38  */
  39 void sort_and_merge_range_set(struct range_set *);
  40
  41 /* Linked list of interesting files and their associated ranges.  The
  42  * list must be kept sorted by path.
  43  *
  44  * For simplicity, even though this is highly redundant, each
  45  * line_log_data owns its 'path'.
  46  */
  47 struct line_log_data {
  48         struct line_log_data *next;
  49         char *path;
  50         struct range_set ranges;
  51         struct diff_filepair *pair;
  52         struct diff_ranges diff;
  53 };
  54
  55 void line_log_init(struct rev_info *rev, const char *prefix, struct string_list *args);
  56
  57 int line_log_filter(struct rev_info *rev);
  58 int line_log_process_ranges_arbitrary_commit(struct rev_info *rev,
  59                                                     struct commit *commit);
  60
  61 int line_log_print(struct rev_info *rev, struct commit *commit);
  62
  63 void line_log_free(struct rev_info *rev);
  64
  65 #endif /* LINE_LOG_H */