commit-graph.h

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