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78a6766802
In future versions of Git, we plan to support an additional hash algorithm. Integrate the enumeration of hash algorithms with repository setup, and store a pointer to the enumerated data in struct repository. Of course, we currently only support SHA-1, so hard-code this value in read_repository_format. In the future, we'll enumerate this value from the configuration. Add a constant, the_hash_algo, which points to the hash_algo structure pointer in the repository global. Note that this is the hash which is used to serialize data to disk, not the hash which is used to display items to the user. The transition plan anticipates that these may be different. We can add an additional element in the future (say, ui_hash_algo) to provide for this case. Include repository.h in cache.h since we now need to have access to these struct and variable definitions. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
#ifndef REPOSITORY_H
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#define REPOSITORY_H
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struct config_set;
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struct index_state;
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struct submodule_cache;
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struct git_hash_algo;
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struct repository {
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/* Environment */
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/*
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* Path to the git directory.
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* Cannot be NULL after initialization.
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*/
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char *gitdir;
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/*
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* Path to the common git directory.
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* Cannot be NULL after initialization.
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*/
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char *commondir;
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/*
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* Path to the repository's object store.
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* Cannot be NULL after initialization.
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*/
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char *objectdir;
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/*
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* Path to the repository's graft file.
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* Cannot be NULL after initialization.
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*/
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char *graft_file;
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/*
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* Path to the current worktree's index file.
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* Cannot be NULL after initialization.
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*/
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char *index_file;
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/*
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* Path to the working directory.
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* A NULL value indicates that there is no working directory.
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*/
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char *worktree;
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/*
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* Path from the root of the top-level superproject down to this
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* repository. This is only non-NULL if the repository is initialized
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* as a submodule of another repository.
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*/
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char *submodule_prefix;
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/* Subsystems */
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/*
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* Repository's config which contains key-value pairs from the usual
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* set of config files (i.e. repo specific .git/config, user wide
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* ~/.gitconfig, XDG config file and the global /etc/gitconfig)
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*/
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struct config_set *config;
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/* Repository's submodule config as defined by '.gitmodules' */
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struct submodule_cache *submodule_cache;
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/*
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* Repository's in-memory index.
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* 'repo_read_index()' can be used to populate 'index'.
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*/
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struct index_state *index;
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/* Repository's current hash algorithm, as serialized on disk. */
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const struct git_hash_algo *hash_algo;
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/* Configurations */
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/*
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* Bit used during initialization to indicate if repository state (like
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* the location of the 'objectdir') should be read from the
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* environment. By default this bit will be set at the begining of
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* 'repo_init()' so that all repositories will ignore the environment.
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* The exception to this is 'the_repository', which doesn't go through
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* the normal 'repo_init()' process.
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*/
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unsigned ignore_env:1;
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/* Indicate if a repository has a different 'commondir' from 'gitdir' */
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unsigned different_commondir:1;
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};
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extern struct repository *the_repository;
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extern void repo_set_gitdir(struct repository *repo, const char *path);
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extern void repo_set_worktree(struct repository *repo, const char *path);
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extern void repo_set_hash_algo(struct repository *repo, int algo);
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extern int repo_init(struct repository *repo, const char *gitdir, const char *worktree);
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extern int repo_submodule_init(struct repository *submodule,
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struct repository *superproject,
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const char *path);
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extern void repo_clear(struct repository *repo);
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/*
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* Populates the repository's index from its index_file, an index struct will
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* be allocated if needed.
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*
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* Return the number of index entries in the populated index or a value less
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* than zero if an error occured. If the repository's index has already been
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* populated then the number of entries will simply be returned.
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*/
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extern int repo_read_index(struct repository *repo);
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#endif /* REPOSITORY_H */
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