384 lines
10 KiB
C
384 lines
10 KiB
C
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/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_git_tag_h__
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#define INCLUDE_git_tag_h__
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#include "common.h"
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#include "types.h"
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#include "oid.h"
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#include "object.h"
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#include "strarray.h"
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/**
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* @file git2/tag.h
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* @brief Git tag parsing routines
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* @defgroup git_tag Git tag management
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* @ingroup Git
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* @{
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*/
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GIT_BEGIN_DECL
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/**
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* Lookup a tag object from the repository.
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*
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* @param out pointer to the looked up tag
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* @param repo the repo to use when locating the tag.
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* @param id identity of the tag to locate.
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_lookup(
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git_tag **out, git_repository *repo, const git_oid *id);
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/**
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* Lookup a tag object from the repository,
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* given a prefix of its identifier (short id).
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*
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* @see git_object_lookup_prefix
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*
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* @param out pointer to the looked up tag
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* @param repo the repo to use when locating the tag.
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* @param id identity of the tag to locate.
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* @param len the length of the short identifier
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_lookup_prefix(
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git_tag **out, git_repository *repo, const git_oid *id, size_t len);
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/**
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* Close an open tag
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*
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* You can no longer use the git_tag pointer after this call.
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*
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* IMPORTANT: You MUST call this method when you are through with a tag to
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* release memory. Failure to do so will cause a memory leak.
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*
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* @param tag the tag to close
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*/
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GIT_EXTERN(void) git_tag_free(git_tag *tag);
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/**
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* Get the id of a tag.
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*
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* @param tag a previously loaded tag.
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* @return object identity for the tag.
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*/
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GIT_EXTERN(const git_oid *) git_tag_id(const git_tag *tag);
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/**
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* Get the repository that contains the tag.
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*
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* @param tag A previously loaded tag.
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* @return Repository that contains this tag.
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*/
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GIT_EXTERN(git_repository *) git_tag_owner(const git_tag *tag);
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/**
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* Get the tagged object of a tag
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*
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* This method performs a repository lookup for the
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* given object and returns it
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*
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* @param target_out pointer where to store the target
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* @param tag a previously loaded tag.
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_target(git_object **target_out, const git_tag *tag);
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/**
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* Get the OID of the tagged object of a tag
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*
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* @param tag a previously loaded tag.
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* @return pointer to the OID
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*/
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GIT_EXTERN(const git_oid *) git_tag_target_id(const git_tag *tag);
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/**
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* Get the type of a tag's tagged object
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*
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* @param tag a previously loaded tag.
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* @return type of the tagged object
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*/
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GIT_EXTERN(git_object_t) git_tag_target_type(const git_tag *tag);
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/**
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* Get the name of a tag
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*
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* @param tag a previously loaded tag.
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* @return name of the tag
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*/
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GIT_EXTERN(const char *) git_tag_name(const git_tag *tag);
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/**
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* Get the tagger (author) of a tag
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*
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* @param tag a previously loaded tag.
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* @return reference to the tag's author or NULL when unspecified
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*/
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GIT_EXTERN(const git_signature *) git_tag_tagger(const git_tag *tag);
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/**
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* Get the message of a tag
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*
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* @param tag a previously loaded tag.
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* @return message of the tag or NULL when unspecified
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*/
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GIT_EXTERN(const char *) git_tag_message(const git_tag *tag);
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/**
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* Create a new tag in the repository from an object
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*
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* A new reference will also be created pointing to
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* this tag object. If `force` is true and a reference
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* already exists with the given name, it'll be replaced.
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*
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* The message will not be cleaned up. This can be achieved
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* through `git_message_prettify()`.
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*
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* The tag name will be checked for validity. You must avoid
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* the characters '~', '^', ':', '\\', '?', '[', and '*', and the
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* sequences ".." and "@{" which have special meaning to revparse.
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*
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* @param oid Pointer where to store the OID of the
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* newly created tag. If the tag already exists, this parameter
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* will be the oid of the existing tag, and the function will
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* return a GIT_EEXISTS error code.
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*
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* @param repo Repository where to store the tag
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*
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* @param tag_name Name for the tag; this name is validated
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* for consistency. It should also not conflict with an
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* already existing tag name
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*
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* @param target Object to which this tag points. This object
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* must belong to the given `repo`.
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*
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* @param tagger Signature of the tagger for this tag, and
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* of the tagging time
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*
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* @param message Full message for this tag
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*
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* @param force Overwrite existing references
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*
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* @return 0 on success, GIT_EINVALIDSPEC or an error code
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* A tag object is written to the ODB, and a proper reference
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* is written in the /refs/tags folder, pointing to it
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*/
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GIT_EXTERN(int) git_tag_create(
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git_oid *oid,
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git_repository *repo,
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const char *tag_name,
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const git_object *target,
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const git_signature *tagger,
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const char *message,
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int force);
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/**
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* Create a new tag in the object database pointing to a git_object
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*
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* The message will not be cleaned up. This can be achieved
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* through `git_message_prettify()`.
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*
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* @param oid Pointer where to store the OID of the
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* newly created tag
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*
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* @param repo Repository where to store the tag
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*
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* @param tag_name Name for the tag
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*
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* @param target Object to which this tag points. This object
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* must belong to the given `repo`.
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*
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* @param tagger Signature of the tagger for this tag, and
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* of the tagging time
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*
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* @param message Full message for this tag
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*
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* @return 0 on success or an error code
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*/
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GIT_EXTERN(int) git_tag_annotation_create(
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git_oid *oid,
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git_repository *repo,
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const char *tag_name,
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const git_object *target,
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const git_signature *tagger,
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const char *message);
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/**
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* Create a new tag in the repository from a buffer
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*
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* @param oid Pointer where to store the OID of the newly created tag
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* @param repo Repository where to store the tag
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* @param buffer Raw tag data
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* @param force Overwrite existing tags
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* @return 0 on success; error code otherwise
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*/
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GIT_EXTERN(int) git_tag_create_from_buffer(
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git_oid *oid,
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git_repository *repo,
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const char *buffer,
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int force);
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/**
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* Create a new lightweight tag pointing at a target object
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*
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* A new direct reference will be created pointing to
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* this target object. If `force` is true and a reference
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* already exists with the given name, it'll be replaced.
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*
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* The tag name will be checked for validity.
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* See `git_tag_create()` for rules about valid names.
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*
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* @param oid Pointer where to store the OID of the provided
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* target object. If the tag already exists, this parameter
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* will be filled with the oid of the existing pointed object
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* and the function will return a GIT_EEXISTS error code.
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*
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* @param repo Repository where to store the lightweight tag
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*
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* @param tag_name Name for the tag; this name is validated
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* for consistency. It should also not conflict with an
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* already existing tag name
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*
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* @param target Object to which this tag points. This object
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* must belong to the given `repo`.
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*
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* @param force Overwrite existing references
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*
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* @return 0 on success, GIT_EINVALIDSPEC or an error code
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* A proper reference is written in the /refs/tags folder,
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* pointing to the provided target object
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*/
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GIT_EXTERN(int) git_tag_create_lightweight(
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git_oid *oid,
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git_repository *repo,
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const char *tag_name,
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const git_object *target,
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int force);
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/**
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* Delete an existing tag reference.
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*
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* The tag name will be checked for validity.
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* See `git_tag_create()` for rules about valid names.
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*
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* @param repo Repository where lives the tag
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*
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* @param tag_name Name of the tag to be deleted;
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* this name is validated for consistency.
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*
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* @return 0 on success, GIT_EINVALIDSPEC or an error code
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*/
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GIT_EXTERN(int) git_tag_delete(
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git_repository *repo,
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const char *tag_name);
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/**
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* Fill a list with all the tags in the Repository
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*
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* The string array will be filled with the names of the
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* matching tags; these values are owned by the user and
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* should be free'd manually when no longer needed, using
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* `git_strarray_free`.
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*
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* @param tag_names Pointer to a git_strarray structure where
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* the tag names will be stored
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* @param repo Repository where to find the tags
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_list(
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git_strarray *tag_names,
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git_repository *repo);
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/**
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* Fill a list with all the tags in the Repository
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* which name match a defined pattern
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*
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* If an empty pattern is provided, all the tags
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* will be returned.
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*
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* The string array will be filled with the names of the
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* matching tags; these values are owned by the user and
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* should be free'd manually when no longer needed, using
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* `git_strarray_free`.
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*
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* @param tag_names Pointer to a git_strarray structure where
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* the tag names will be stored
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* @param pattern Standard fnmatch pattern
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* @param repo Repository where to find the tags
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_list_match(
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git_strarray *tag_names,
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const char *pattern,
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git_repository *repo);
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/**
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* Callback used to iterate over tag names
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*
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* @see git_tag_foreach
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*
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* @param name The tag name
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* @param oid The tag's OID
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* @param payload Payload passed to git_tag_foreach
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* @return non-zero to terminate the iteration
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*/
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typedef int GIT_CALLBACK(git_tag_foreach_cb)(const char *name, git_oid *oid, void *payload);
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/**
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* Call callback `cb' for each tag in the repository
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*
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* @param repo Repository
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* @param callback Callback function
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* @param payload Pointer to callback data (optional)
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*/
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GIT_EXTERN(int) git_tag_foreach(
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git_repository *repo,
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git_tag_foreach_cb callback,
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void *payload);
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/**
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* Recursively peel a tag until a non tag git_object is found
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*
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* The retrieved `tag_target` object is owned by the repository
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* and should be closed with the `git_object_free` method.
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*
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* @param tag_target_out Pointer to the peeled git_object
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* @param tag The tag to be processed
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_tag_peel(
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git_object **tag_target_out,
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const git_tag *tag);
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/**
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* Create an in-memory copy of a tag. The copy must be explicitly
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* free'd or it will leak.
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*
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* @param out Pointer to store the copy of the tag
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* @param source Original tag to copy
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* @return 0
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*/
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GIT_EXTERN(int) git_tag_dup(git_tag **out, git_tag *source);
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/**
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* Determine whether a tag name is valid, meaning that (when prefixed
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* with `refs/tags/`) that it is a valid reference name, and that any
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* additional tag name restrictions are imposed (eg, it cannot start
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* with a `-`).
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*
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* @param valid output pointer to set with validity of given tag name
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* @param name a tag name to test
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* @return 0 on success or an error code
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*/
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GIT_EXTERN(int) git_tag_name_is_valid(int *valid, const char *name);
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/** @} */
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GIT_END_DECL
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#endif
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