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Diffstat (limited to 'third_party/git/blame.h')
| -rw-r--r-- | third_party/git/blame.h | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/third_party/git/blame.h b/third_party/git/blame.h deleted file mode 100644 index 4a9e1270b0..0000000000 --- a/third_party/git/blame.h +++ /dev/null @@ -1,188 +0,0 @@ -#ifndef BLAME_H -#define BLAME_H - -#include "cache.h" -#include "commit.h" -#include "xdiff-interface.h" -#include "revision.h" -#include "prio-queue.h" -#include "diff.h" - -#define PICKAXE_BLAME_MOVE 01 -#define PICKAXE_BLAME_COPY 02 -#define PICKAXE_BLAME_COPY_HARDER 04 -#define PICKAXE_BLAME_COPY_HARDEST 010 - -#define BLAME_DEFAULT_MOVE_SCORE 20 -#define BLAME_DEFAULT_COPY_SCORE 40 - -/* - * One blob in a commit that is being suspected - */ -struct blame_origin { - int refcnt; - /* Record preceding blame record for this blob */ - struct blame_origin *previous; - /* origins are put in a list linked via `next' hanging off the - * corresponding commit's util field in order to make finding - * them fast. The presence in this chain does not count - * towards the origin's reference count. It is tempting to - * let it count as long as the commit is pending examination, - * but even under circumstances where the commit will be - * present multiple times in the priority queue of unexamined - * commits, processing the first instance will not leave any - * work requiring the origin data for the second instance. An - * interspersed commit changing that would have to be - * preexisting with a different ancestry and with the same - * commit date in order to wedge itself between two instances - * of the same commit in the priority queue _and_ produce - * blame entries relevant for it. While we don't want to let - * us get tripped up by this case, it certainly does not seem - * worth optimizing for. - */ - struct blame_origin *next; - struct commit *commit; - /* `suspects' contains blame entries that may be attributed to - * this origin's commit or to parent commits. When a commit - * is being processed, all suspects will be moved, either by - * assigning them to an origin in a different commit, or by - * shipping them to the scoreboard's ent list because they - * cannot be attributed to a different commit. - */ - struct blame_entry *suspects; - mmfile_t file; - int num_lines; - void *fingerprints; - struct object_id blob_oid; - unsigned short mode; - /* guilty gets set when shipping any suspects to the final - * blame list instead of other commits - */ - char guilty; - char path[FLEX_ARRAY]; -}; - -/* - * Each group of lines is described by a blame_entry; it can be split - * as we pass blame to the parents. They are arranged in linked lists - * kept as `suspects' of some unprocessed origin, or entered (when the - * blame origin has been finalized) into the scoreboard structure. - * While the scoreboard structure is only sorted at the end of - * processing (according to final image line number), the lists - * attached to an origin are sorted by the target line number. - */ -struct blame_entry { - struct blame_entry *next; - - /* the first line of this group in the final image; - * internally all line numbers are 0 based. - */ - int lno; - - /* how many lines this group has */ - int num_lines; - - /* the commit that introduced this group into the final image */ - struct blame_origin *suspect; - - /* the line number of the first line of this group in the - * suspect's file; internally all line numbers are 0 based. - */ - int s_lno; - - /* how significant this entry is -- cached to avoid - * scanning the lines over and over. - */ - unsigned score; - int ignored; - int unblamable; -}; - -/* - * The current state of the blame assignment. - */ -struct blame_scoreboard { - /* the final commit (i.e. where we started digging from) */ - struct commit *final; - /* Priority queue for commits with unassigned blame records */ - struct prio_queue commits; - struct repository *repo; - struct rev_info *revs; - const char *path; - - /* - * The contents in the final image. - * Used by many functions to obtain contents of the nth line, - * indexed with scoreboard.lineno[blame_entry.lno]. - */ - const char *final_buf; - unsigned long final_buf_size; - - /* linked list of blames */ - struct blame_entry *ent; - - struct oidset ignore_list; - - /* look-up a line in the final buffer */ - int num_lines; - int *lineno; - - /* stats */ - int num_read_blob; - int num_get_patch; - int num_commits; - - /* - * blame for a blame_entry with score lower than these thresholds - * is not passed to the parent using move/copy logic. - */ - unsigned move_score; - unsigned copy_score; - - /* use this file's contents as the final image */ - const char *contents_from; - - /* flags */ - int reverse; - int show_root; - int xdl_opts; - int no_whole_file_rename; - int debug; - - /* callbacks */ - void(*on_sanity_fail)(struct blame_scoreboard *, int); - void(*found_guilty_entry)(struct blame_entry *, void *); - - void *found_guilty_entry_data; -}; - -/* - * Origin is refcounted and usually we keep the blob contents to be - * reused. - */ -static inline struct blame_origin *blame_origin_incref(struct blame_origin *o) -{ - if (o) - o->refcnt++; - return o; -} -void blame_origin_decref(struct blame_origin *o); - -void blame_coalesce(struct blame_scoreboard *sb); -void blame_sort_final(struct blame_scoreboard *sb); -unsigned blame_entry_score(struct blame_scoreboard *sb, struct blame_entry *e); -void assign_blame(struct blame_scoreboard *sb, int opt); -const char *blame_nth_line(struct blame_scoreboard *sb, long lno); - -void init_scoreboard(struct blame_scoreboard *sb); -void setup_scoreboard(struct blame_scoreboard *sb, - const char *path, - struct blame_origin **orig); - -struct blame_entry *blame_entry_prepend(struct blame_entry *head, - long start, long end, - struct blame_origin *o); - -struct blame_origin *get_blame_suspects(struct commit *commit); - -#endif /* BLAME_H */ |