/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_git_tag_h__
#define INCLUDE_git_tag_h__
#include "common.h"
#include "types.h"
#include "oid.h"
#include "object.h"
/**
* @file git2/tag.h
* @brief Git tag parsing routines
* @defgroup git_tag Git tag management
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Lookup a tag object from the repository.
*
* @param tag pointer to the looked up tag
* @param repo the repo to use when locating the tag.
* @param id identity of the tag to locate.
* @return 0 or an error code
*/
GIT_INLINE(int) git_tag_lookup(git_tag **tag, git_repository *repo, const git_oid *id)
{
return git_object_lookup((git_object **)tag, repo, id, (git_otype)GIT_OBJ_TAG);
}
/**
* Lookup a tag object from the repository,
* given a prefix of its identifier (short id).
*
* @see git_object_lookup_prefix
*
* @param tag pointer to the looked up tag
* @param repo the repo to use when locating the tag.
* @param id identity of the tag to locate.
* @param len the length of the short identifier
* @return 0 or an error code
*/
GIT_INLINE(int) git_tag_lookup_prefix(git_tag **tag, git_repository *repo, const git_oid *id, unsigned int len)
{
return git_object_lookup_prefix((git_object **)tag, repo, id, len, (git_otype)GIT_OBJ_TAG);
}
/**
* Close an open tag
*
* This is a wrapper around git_object_free()
*
* IMPORTANT:
* It *is* necessary to call this method when you stop
* using a tag. Failure to do so will cause a memory leak.
*
* @param tag the tag to close
*/
GIT_INLINE(void) git_tag_free(git_tag *tag)
{
git_object_free((git_object *) tag);
}
/**
* Get the id of a tag.
*
* @param tag a previously loaded tag.
* @return object identity for the tag.
*/
GIT_EXTERN(const git_oid *) git_tag_id(git_tag *tag);
/**
* Get the tagged object of a tag
*
* This method performs a repository lookup for the
* given object and returns it
*
* @param target pointer where to store the target
* @param tag a previously loaded tag.
* @return 0 or an error code
*/
GIT_EXTERN(int) git_tag_target(git_object **target, git_tag *tag);
/**
* Get the OID of the tagged object of a tag
*
* @param tag a previously loaded tag.
* @return pointer to the OID
*/
GIT_EXTERN(const git_oid *) git_tag_target_oid(git_tag *tag);
/**
* Get the type of a tag's tagged object
*
* @param tag a previously loaded tag.
* @return type of the tagged object
*/
GIT_EXTERN(git_otype) git_tag_type(git_tag *tag);
/**
* Get the name of a tag
*
* @param tag a previously loaded tag.
* @return name of the tag
*/
GIT_EXTERN(const char *) git_tag_name(git_tag *tag);
/**
* Get the tagger (author) of a tag
*
* @param tag a previously loaded tag.
* @return reference to the tag's author
*/
GIT_EXTERN(const git_signature *) git_tag_tagger(git_tag *tag);
/**
* Get the message of a tag
*
* @param tag a previously loaded tag.
* @return message of the tag
*/
GIT_EXTERN(const char *) git_tag_message(git_tag *tag);
/**
* Create a new tag in the repository from an object
*
* A new reference will also be created pointing to
* this tag object. If `force` is true and a reference
* already exists with the given name, it'll be replaced.
*
* The message will be cleaned up from excess whitespace
* it will be made sure that the last line ends with a '\n'.
*
* @param oid Pointer where to store the OID of the
* newly created tag. If the tag already exists, this parameter
* will be the oid of the existing tag, and the function will
* return a GIT_EEXISTS error code.
*
* @param repo Repository where to store the tag
*
* @param tag_name Name for the tag; this name is validated
* for consistency. It should also not conflict with an
* already existing tag name
*
* @param target Object to which this tag points. This object
* must belong to the given `repo`.
*
* @param tagger Signature of the tagger for this tag, and
* of the tagging time
*
* @param message Full message for this tag
*
* @param force Overwrite existing references
*
* @return 0 or an error code
* A tag object is written to the ODB, and a proper reference
* is written in the /refs/tags folder, pointing to it
*/
GIT_EXTERN(int) git_tag_create(
git_oid *oid,
git_repository *repo,
const char *tag_name,
const git_object *target,
const git_signature *tagger,
const char *message,
int force);
/**
* Create a new tag in the repository from a buffer
*
* @param oid Pointer where to store the OID of the newly created tag
* @param repo Repository where to store the tag
* @param buffer Raw tag data
* @param force Overwrite existing tags
* @return 0 on success; error code otherwise
*/
GIT_EXTERN(int) git_tag_create_frombuffer(
git_oid *oid,
git_repository *repo,
const char *buffer,
int force);
/**
* Create a new lightweight tag pointing at a target object
*
* A new direct reference will be created pointing to
* this target object. If `force` is true and a reference
* already exists with the given name, it'll be replaced.
*
* @param oid Pointer where to store the OID of the provided
* target object. If the tag already exists, this parameter
* will be filled with the oid of the existing pointed object
* and the function will return a GIT_EEXISTS error code.
*
* @param repo Repository where to store the lightweight tag
*
* @param tag_name Name for the tag; this name is validated
* for consistency. It should also not conflict with an
* already existing tag name
*
* @param target Object to which this tag points. This object
* must belong to the given `repo`.
*
* @param force Overwrite existing references
*
* @return 0 or an error code
* A proper reference is written in the /refs/tags folder,
* pointing to the provided target object
*/
GIT_EXTERN(int) git_tag_create_lightweight(
git_oid *oid,
git_repository *repo,
const char *tag_name,
const git_object *target,
int force);
/**
* Delete an existing tag reference.
*
* @param repo Repository where lives the tag
*
* @param tag_name Name of the tag to be deleted;
* this name is validated for consistency.
*
* @return 0 or an error code
*/
GIT_EXTERN(int) git_tag_delete(
git_repository *repo,
const char *tag_name);
/**
* Fill a list with all the tags in the Repository
*
* The string array will be filled with the names of the
* matching tags; these values are owned by the user and
* should be free'd manually when no longer needed, using
* `git_strarray_free`.
*
* @param tag_names Pointer to a git_strarray structure where
* the tag names will be stored
* @param repo Repository where to find the tags
* @return 0 or an error code
*/
GIT_EXTERN(int) git_tag_list(
git_strarray *tag_names,
git_repository *repo);
/**
* Fill a list with all the tags in the Repository
* which name match a defined pattern
*
* If an empty pattern is provided, all the tags
* will be returned.
*
* The string array will be filled with the names of the
* matching tags; these values are owned by the user and
* should be free'd manually when no longer needed, using
* `git_strarray_free`.
*
* @param tag_names Pointer to a git_strarray structure where
* the tag names will be stored
* @param pattern Standard fnmatch pattern
* @param repo Repository where to find the tags
* @return 0 or an error code
*/
GIT_EXTERN(int) git_tag_list_match(
git_strarray *tag_names,
const char *pattern,
git_repository *repo);
/**
* Recursively peel a tag until a non tag git_object
* is met
*
* The retrieved `tag_target` object is owned by the repository
* and should be closed with the `git_object_free` method.
*
* @param tag_target Pointer to the peeled git_object
* @param tag The tag to be processed
* @return 0 or an error code
*/
GIT_EXTERN(int) git_tag_peel(
git_object **tag_target,
git_tag *tag);
/** @} */
GIT_END_DECL
#endif
