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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* 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_clone_h__
#define INCLUDE_git_clone_h__
#include "common.h"
#include "types.h"
#include "indexer.h"
#include "checkout.h"
#include "remote.h"
#include "transport.h"
/**
* @file git2/clone.h
* @brief Git cloning routines
* @defgroup git_clone Git cloning routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Options for bypassing the git-aware transport on clone. Bypassing
* it means that instead of a fetch, libgit2 will copy the object
* database directory instead of figuring out what it needs, which is
* faster. If possible, it will hardlink the files to save space.
*/
typedef enum {
/**
* Auto-detect (default), libgit2 will bypass the git-aware
* transport for local paths, but use a normal fetch for
* `file://` urls.
*/
GIT_CLONE_LOCAL_AUTO,
/**
* Bypass the git-aware transport even for a `file://` url.
*/
GIT_CLONE_LOCAL,
/**
* Do no bypass the git-aware transport
*/
GIT_CLONE_NO_LOCAL,
/**
* Bypass the git-aware transport, but do not try to use
* hardlinks.
*/
GIT_CLONE_LOCAL_NO_LINKS,
} git_clone_local_t;
/**
* The signature of a function matching git_remote_create, with an additional
* void* as a callback payload.
*
* Callers of git_clone may provide a function matching this signature to override
* the remote creation and customization process during a clone operation.
*
* @param out the resulting remote
* @param repo the repository in which to create the remote
* @param name the remote's name
* @param url the remote's url
* @param payload an opaque payload
* @return 0, GIT_EINVALIDSPEC, GIT_EEXISTS or an error code
*/
typedef int GIT_CALLBACK(git_remote_create_cb)(
git_remote **out,
git_repository *repo,
const char *name,
const char *url,
void *payload);
/**
* The signature of a function matchin git_repository_init, with an
* aditional void * as callback payload.
*
* Callers of git_clone my provide a function matching this signature
* to override the repository creation and customization process
* during a clone operation.
*
* @param out the resulting repository
* @param path path in which to create the repository
* @param bare whether the repository is bare. This is the value from the clone options
* @param payload payload specified by the options
* @return 0, or a negative value to indicate error
*/
typedef int GIT_CALLBACK(git_repository_create_cb)(
git_repository **out,
const char *path,
int bare,
void *payload);
/**
* Clone options structure
*
* Initialize with `GIT_CLONE_OPTIONS_INIT`. Alternatively, you can
* use `git_clone_options_init`.
*
*/
typedef struct git_clone_options {
unsigned int version;
/**
* These options are passed to the checkout step. To disable
* checkout, set the `checkout_strategy` to
* `GIT_CHECKOUT_NONE`.
*/
git_checkout_options checkout_opts;
/**
* Options which control the fetch, including callbacks.
*
* The callbacks are used for reporting fetch progress, and for acquiring
* credentials in the event they are needed.
*/
git_fetch_options fetch_opts;
/**
* Set to zero (false) to create a standard repo, or non-zero
* for a bare repo
*/
int bare;
/**
* Whether to use a fetch or copy the object database.
*/
git_clone_local_t local;
/**
* The name of the branch to checkout. NULL means use the
* remote's default branch.
*/
const char *checkout_branch;
/**
* A callback used to create the new repository into which to
* clone. If NULL, the 'bare' field will be used to determine
* whether to create a bare repository.
*/
git_repository_create_cb repository_cb;
/**
* An opaque payload to pass to the git_repository creation callback.
* This parameter is ignored unless repository_cb is non-NULL.
*/
void *repository_cb_payload;
/**
* A callback used to create the git_remote, prior to its being
* used to perform the clone operation. See the documentation for
* git_remote_create_cb for details. This parameter may be NULL,
* indicating that git_clone should provide default behavior.
*/
git_remote_create_cb remote_cb;
/**
* An opaque payload to pass to the git_remote creation callback.
* This parameter is ignored unless remote_cb is non-NULL.
*/
void *remote_cb_payload;
} git_clone_options;
#define GIT_CLONE_OPTIONS_VERSION 1
#define GIT_CLONE_OPTIONS_INIT { GIT_CLONE_OPTIONS_VERSION, \
{ GIT_CHECKOUT_OPTIONS_VERSION, GIT_CHECKOUT_SAFE }, \
GIT_FETCH_OPTIONS_INIT }
/**
* Initialize git_clone_options structure
*
* Initializes a `git_clone_options` with default values. Equivalent to creating
* an instance with GIT_CLONE_OPTIONS_INIT.
*
* @param opts The `git_clone_options` struct to initialize.
* @param version The struct version; pass `GIT_CLONE_OPTIONS_VERSION`.
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_clone_options_init(
git_clone_options *opts,
unsigned int version);
/**
* Clone a remote repository.
*
* By default this creates its repository and initial remote to match
* git's defaults. You can use the options in the callback to
* customize how these are created.
*
* @param out pointer that will receive the resulting repository object
* @param url the remote repository to clone
* @param local_path local directory to clone to
* @param options configuration options for the clone. If NULL, the
* function works as though GIT_OPTIONS_INIT were passed.
* @return 0 on success, any non-zero return value from a callback
* function, or a negative value to indicate an error (use
* `git_error_last` for a detailed error message)
*/
GIT_EXTERN(int) git_clone(
git_repository **out,
const char *url,
const char *local_path,
const git_clone_options *options);
/** @} */
GIT_END_DECL
#endif
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