Andrew's git - gitweb.git/blob

   1#ifndef REPOSITORY_H
   2#define REPOSITORY_H
   3
   4#include "path.h"
   5
   6struct config_set;
   7struct git_hash_algo;
   8struct index_state;
   9struct lock_file;
  10struct pathspec;
  11struct raw_object_store;
  12struct submodule_cache;
  13
  14struct repository {
  15        /* Environment */
  16        /*
  17         * Path to the git directory.
  18         * Cannot be NULL after initialization.
  19         */
  20        char *gitdir;
  21
  22        /*
  23         * Path to the common git directory.
  24         * Cannot be NULL after initialization.
  25         */
  26        char *commondir;
  27
  28        /*
  29         * Holds any information related to accessing the raw object content.
  30         */
  31        struct raw_object_store *objects;
  32
  33        /*
  34         * All objects in this repository that have been parsed. This structure
  35         * owns all objects it references, so users of "struct object *"
  36         * generally do not need to free them; instead, when a repository is no
  37         * longer used, call parsed_object_pool_clear() on this structure, which
  38         * is called by the repositories repo_clear on its desconstruction.
  39         */
  40        struct parsed_object_pool *parsed_objects;
  41
  42        /* The store in which the refs are held. */
  43        struct ref_store *refs;
  44
  45        /*
  46         * Contains path to often used file names.
  47         */
  48        struct path_cache cached_paths;
  49
  50        /*
  51         * Path to the repository's graft file.
  52         * Cannot be NULL after initialization.
  53         */
  54        char *graft_file;
  55
  56        /*
  57         * Path to the current worktree's index file.
  58         * Cannot be NULL after initialization.
  59         */
  60        char *index_file;
  61
  62        /*
  63         * Path to the working directory.
  64         * A NULL value indicates that there is no working directory.
  65         */
  66        char *worktree;
  67
  68        /*
  69         * Path from the root of the top-level superproject down to this
  70         * repository.  This is only non-NULL if the repository is initialized
  71         * as a submodule of another repository.
  72         */
  73        char *submodule_prefix;
  74
  75        /* Subsystems */
  76        /*
  77         * Repository's config which contains key-value pairs from the usual
  78         * set of config files (i.e. repo specific .git/config, user wide
  79         * ~/.gitconfig, XDG config file and the global /etc/gitconfig)
  80         */
  81        struct config_set *config;
  82
  83        /* Repository's submodule config as defined by '.gitmodules' */
  84        struct submodule_cache *submodule_cache;
  85
  86        /*
  87         * Repository's in-memory index.
  88         * 'repo_read_index()' can be used to populate 'index'.
  89         */
  90        struct index_state *index;
  91
  92        /* Repository's current hash algorithm, as serialized on disk. */
  93        const struct git_hash_algo *hash_algo;
  94
  95        /* A unique-id for tracing purposes. */
  96        int trace2_repo_id;
  97
  98        /* Configurations */
  99
 100        /* Indicate if a repository has a different 'commondir' from 'gitdir' */
 101        unsigned different_commondir:1;
 102};
 103
 104extern struct repository *the_repository;
 105
 106/*
 107 * Define a custom repository layout. Any field can be NULL, which
 108 * will default back to the path according to the default layout.
 109 */
 110struct set_gitdir_args {
 111        const char *commondir;
 112        const char *object_dir;
 113        const char *graft_file;
 114        const char *index_file;
 115        const char *alternate_db;
 116};
 117
 118void repo_set_gitdir(struct repository *repo, const char *root,
 119                     const struct set_gitdir_args *extra_args);
 120void repo_set_worktree(struct repository *repo, const char *path);
 121void repo_set_hash_algo(struct repository *repo, int algo);
 122void initialize_the_repository(void);
 123int repo_init(struct repository *r, const char *gitdir, const char *worktree);
 124
 125/*
 126 * Initialize the repository 'subrepo' as the submodule given by the
 127 * struct submodule 'sub' in parent repository 'superproject'.
 128 * Return 0 upon success and a non-zero value upon failure, which may happen
 129 * if the submodule is not found, or 'sub' is NULL.
 130 */
 131struct submodule;
 132int repo_submodule_init(struct repository *subrepo,
 133                        struct repository *superproject,
 134                        const struct submodule *sub);
 135void repo_clear(struct repository *repo);
 136
 137/*
 138 * Populates the repository's index from its index_file, an index struct will
 139 * be allocated if needed.
 140 *
 141 * Return the number of index entries in the populated index or a value less
 142 * than zero if an error occured.  If the repository's index has already been
 143 * populated then the number of entries will simply be returned.
 144 */
 145int repo_read_index(struct repository *repo);
 146int repo_hold_locked_index(struct repository *repo,
 147                           struct lock_file *lf,
 148                           int flags);
 149
 150int repo_read_index_preload(struct repository *,
 151                            const struct pathspec *pathspec,
 152                            unsigned refresh_flags);
 153int repo_read_index_unmerged(struct repository *);
 154/*
 155 * Opportunistically update the index but do not complain if we can't.
 156 * The lockfile is always committed or rolled back.
 157 */
 158void repo_update_index_if_able(struct repository *, struct lock_file *);
 159
 160
 161#endif /* REPOSITORY_H */