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https://github.com/git/git.git
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Junio C Hamano
444df7fbb4
The object storage format has been made configurable via the 'extensions.objectStorage' configuration variable, allowing users to specify the storage backend and an optional payload, mirroring the design of 'extensions.refStorage'. * ps/odb-object-storage-extension: builtin/submodule: propagate "--object-storage-format=" builtin/clone: introduce "--object-storage-format=" builtin/init: introduce handling of object storage format builtin: expose the object storage format setup: allow overriding object storage format via environment setup: introduce object storage extension loose: drop unused `repo_write_loose_object_map()`
110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
#ifndef ODB_SOURCE_FILES_H
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#define ODB_SOURCE_FILES_H
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#include "odb/source.h"
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#include "statinfo.h"
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#include "strmap.h"
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struct odb_source_loose;
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struct odb_source_packed;
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/*
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* A single object directory that encapsulates access to both the loose and
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* packed backend. This can either be the primary or an alternate object
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* directory.
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*/
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struct odb_files_dir {
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/* Absolute path to the object directory. */
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char *abspath;
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/* List of alternate object directories. */
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struct odb_files_dir *next;
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/* The two sources derived from this object directory. */
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struct odb_source_loose *loose;
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struct odb_source_packed *packed;
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/*
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* Whether this is the local object directory of the owning
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* repository. Directories added via alternates are not local.
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*/
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bool local;
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};
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struct odb_files_dir *odb_files_dir_new(struct object_database *odb,
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const char *path, bool local);
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void odb_files_dir_free(struct odb_files_dir *dir);
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/*
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* The files object database source uses a combination of loose objects and
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* packfiles. It is the default backend used by Git to store objects.
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*/
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struct odb_source_files {
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struct odb_source base;
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/*
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* List of all object directories; the main directory is first (and
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* cannot be NULL after initialization). Subsequent directories are
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* alternates.
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*/
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struct odb_files_dir *dirs;
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struct odb_files_dir **dirs_tail;
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/*
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* Set of directory paths that have already been linked into this
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* source. This set is used to detect the case where the same directory
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* is registered multiple times.
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*/
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struct strset dir_paths;
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/*
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* Whether directory paths shall be compared case-insensitively, as
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* determined by "core.ignoreCase".
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*/
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int dir_paths_icase;
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/* Stat data of the "info/alternates" file. */
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struct stat_validity alternates_validity;
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};
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/* Allocate and initialize a new object source. */
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struct odb_source_files *odb_source_files_new(struct object_database *odb,
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const char *payload,
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enum odb_new_flags flags);
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/*
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* Optimize the files object database source by repacking loose objects and
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* packfiles as needed. Returns 0 on success, a negative error code otherwise.
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*/
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int odb_source_files_optimize(struct odb_source *source,
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const struct odb_optimize_options *opts);
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/*
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* Check whether optimization of the files object database source is required
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* given the provided options. Returns true if optimization should be
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* performed, false otherwise.
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*/
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bool odb_source_files_optimize_required(struct odb_source *source,
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const struct odb_optimize_options *opts);
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/*
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* Cast the given object database source to the files backend. This will cause
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* a BUG in case the source doesn't use this backend.
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*/
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static inline struct odb_source_files *odb_source_files_downcast(struct odb_source *source)
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{
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if (source->type != ODB_SOURCE_FILES)
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BUG("trying to downcast source of type '%s' to '%s'",
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odb_source_type_to_name(source->type),
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odb_source_type_to_name(ODB_SOURCE_FILES));
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return container_of(source, struct odb_source_files, base);
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}
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/*
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* Find "files" directory by its object directory path. Returns a `NULL`
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* pointer in case the object directory could not be found.
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*/
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struct odb_files_dir *odb_source_files_find_dir(struct object_database *odb, const char *obj_dir);
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#endif
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