commit-graph.h

   1 #ifndef COMMIT_GRAPH_H
   2 #define COMMIT_GRAPH_H
   3
   4 #include "git-compat-util.h"
   5 #include "repository.h"
   6 #include "string-list.h"
   7
   8 char *get_commit_graph_filename(const char *obj_dir);
   9
  10 /*
  11  * Given a commit struct, try to fill the commit struct info, including:
  12  *  1. tree object
  13  *  2. date
  14  *  3. parents.
  15  *
  16  * Returns 1 if and only if the commit was found in the packed graph.
  17  *
  18  * See parse_commit_buffer() for the fallback after this call.
  19  */
  20 int parse_commit_in_graph(struct commit *item);
  21
  22 /*
  23  * It is possible that we loaded commit contents from the commit buffer,
  24  * but we also want to ensure the commit-graph content is correctly
  25  * checked and filled. Fill the graph_pos and generation members of
  26  * the given commit.
  27  */
  28 void load_commit_graph_info(struct commit *item);
  29
  30 struct tree *get_commit_tree_in_graph(const struct commit *c);
  31
  32 struct commit_graph {
  33         int graph_fd;
  34
  35         const unsigned char *data;
  36         size_t data_len;
  37
  38         unsigned char hash_len;
  39         unsigned char num_chunks;
  40         uint32_t num_commits;
  41         struct object_id oid;
  42
  43         const uint32_t *chunk_oid_fanout;
  44         const unsigned char *chunk_oid_lookup;
  45         const unsigned char *chunk_commit_data;
  46         const unsigned char *chunk_large_edges;
  47 };
  48
  49 struct commit_graph *load_commit_graph_one(const char *graph_file);
  50
  51 void write_commit_graph_reachable(const char *obj_dir, int append);
  52 void write_commit_graph(const char *obj_dir,
  53                         struct string_list *pack_indexes,
  54                         struct string_list *commit_hex,
  55                         int append);
  56
  57 int verify_commit_graph(struct repository *r, struct commit_graph *g);
  58
  59 #endif