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