repository.h

   1 #ifndef REPOSITORY_H
   2 #define REPOSITORY_H
   3
   4 struct config_set;
   5 struct git_hash_algo;
   6 struct index_state;
   7 struct raw_object_store;
   8 struct submodule_cache;
   9
  10 struct repository {
  11         /* Environment */
  12         /*
  13          * Path to the git directory.
  14          * Cannot be NULL after initialization.
  15          */
  16         char *gitdir;
  17
  18         /*
  19          * Path to the common git directory.
  20          * Cannot be NULL after initialization.
  21          */
  22         char *commondir;
  23
  24         /*
  25          * Holds any information related to accessing the raw object content.
  26          */
  27         struct raw_object_store *objects;
  28
  29         /* The store in which the refs are held. */
  30         struct ref_store *refs;
  31
  32         /*
  33          * Path to the repository's graft file.
  34          * Cannot be NULL after initialization.
  35          */
  36         char *graft_file;
  37
  38         /*
  39          * Path to the current worktree's index file.
  40          * Cannot be NULL after initialization.
  41          */
  42         char *index_file;
  43
  44         /*
  45          * Path to the working directory.
  46          * A NULL value indicates that there is no working directory.
  47          */
  48         char *worktree;
  49
  50         /*
  51          * Path from the root of the top-level superproject down to this
  52          * repository.  This is only non-NULL if the repository is initialized
  53          * as a submodule of another repository.
  54          */
  55         char *submodule_prefix;
  56
  57         /* Subsystems */
  58         /*
  59          * Repository's config which contains key-value pairs from the usual
  60          * set of config files (i.e. repo specific .git/config, user wide
  61          * ~/.gitconfig, XDG config file and the global /etc/gitconfig)
  62          */
  63         struct config_set *config;
  64
  65         /* Repository's submodule config as defined by '.gitmodules' */
  66         struct submodule_cache *submodule_cache;
  67
  68         /*
  69          * Repository's in-memory index.
  70          * 'repo_read_index()' can be used to populate 'index'.
  71          */
  72         struct index_state *index;
  73
  74         /* Repository's current hash algorithm, as serialized on disk. */
  75         const struct git_hash_algo *hash_algo;
  76
  77         /* Configurations */
  78
  79         /* Indicate if a repository has a different 'commondir' from 'gitdir' */
  80         unsigned different_commondir:1;
  81 };
  82
  83 extern struct repository *the_repository;
  84
  85 /*
  86  * Define a custom repository layout. Any field can be NULL, which
  87  * will default back to the path according to the default layout.
  88  */
  89 struct set_gitdir_args {
  90         const char *commondir;
  91         const char *object_dir;
  92         const char *graft_file;
  93         const char *index_file;
  94         const char *alternate_db;
  95 };
  96
  97 extern void repo_set_gitdir(struct repository *repo,
  98                             const char *root,
  99                             const struct set_gitdir_args *extra_args);
 100 extern void repo_set_worktree(struct repository *repo, const char *path);
 101 extern void repo_set_hash_algo(struct repository *repo, int algo);
 102 extern void initialize_the_repository(void);
 103 extern int repo_init(struct repository *r,
 104                      const char *gitdir,
 105                      const char *worktree);
 106 extern int repo_submodule_init(struct repository *submodule,
 107                                struct repository *superproject,
 108                                const char *path);
 109 extern void repo_clear(struct repository *repo);
 110
 111 /*
 112  * Populates the repository's index from its index_file, an index struct will
 113  * be allocated if needed.
 114  *
 115  * Return the number of index entries in the populated index or a value less
 116  * than zero if an error occured.  If the repository's index has already been
 117  * populated then the number of entries will simply be returned.
 118  */
 119 extern int repo_read_index(struct repository *repo);
 120
 121 #endif /* REPOSITORY_H */