ATBTariffWebInterface/libgit2-1.7.2/include/git2/rebase.h

400 lines
12 KiB
C

/*
* 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_rebase_h__
#define INCLUDE_git_rebase_h__
#include "common.h"
#include "types.h"
#include "oid.h"
#include "annotated_commit.h"
#include "merge.h"
#include "checkout.h"
#include "commit.h"
/**
* @file git2/rebase.h
* @brief Git rebase routines
* @defgroup git_rebase Git merge routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Rebase options
*
* Use to tell the rebase machinery how to operate.
*/
typedef struct {
unsigned int version;
/**
* Used by `git_rebase_init`, this will instruct other clients working
* on this rebase that you want a quiet rebase experience, which they
* may choose to provide in an application-specific manner. This has no
* effect upon libgit2 directly, but is provided for interoperability
* between Git tools.
*/
int quiet;
/**
* Used by `git_rebase_init`, this will begin an in-memory rebase,
* which will allow callers to step through the rebase operations and
* commit the rebased changes, but will not rewind HEAD or update the
* repository to be in a rebasing state. This will not interfere with
* the working directory (if there is one).
*/
int inmemory;
/**
* Used by `git_rebase_finish`, this is the name of the notes reference
* used to rewrite notes for rebased commits when finishing the rebase;
* if NULL, the contents of the configuration option `notes.rewriteRef`
* is examined, unless the configuration option `notes.rewrite.rebase`
* is set to false. If `notes.rewriteRef` is also NULL, notes will
* not be rewritten.
*/
const char *rewrite_notes_ref;
/**
* Options to control how trees are merged during `git_rebase_next`.
*/
git_merge_options merge_options;
/**
* Options to control how files are written during `git_rebase_init`,
* `git_rebase_next` and `git_rebase_abort`. Note that a minimum
* strategy of `GIT_CHECKOUT_SAFE` is defaulted in `init` and `next`,
* and a minimum strategy of `GIT_CHECKOUT_FORCE` is defaulted in
* `abort` to match git semantics.
*/
git_checkout_options checkout_options;
/**
* Optional callback that allows users to override commit
* creation in `git_rebase_commit`. If specified, users can
* create their own commit and provide the commit ID, which
* may be useful for signing commits or otherwise customizing
* the commit creation.
*
* If this callback returns `GIT_PASSTHROUGH`, then
* `git_rebase_commit` will continue to create the commit.
*/
git_commit_create_cb commit_create_cb;
#ifdef GIT_DEPRECATE_HARD
void *reserved;
#else
/**
* If provided, this will be called with the commit content, allowing
* a signature to be added to the rebase commit. Can be skipped with
* GIT_PASSTHROUGH. If GIT_PASSTHROUGH is returned, a commit will be made
* without a signature.
*
* This field is only used when performing git_rebase_commit.
*
* This callback is not invoked if a `git_commit_create_cb` is
* specified.
*
* This callback is deprecated; users should provide a
* creation callback as `commit_create_cb` that produces a
* commit buffer, signs it, and commits it.
*/
int (*signing_cb)(git_buf *, git_buf *, const char *, void *);
#endif
/**
* This will be passed to each of the callbacks in this struct
* as the last parameter.
*/
void *payload;
} git_rebase_options;
/**
* Type of rebase operation in-progress after calling `git_rebase_next`.
*/
typedef enum {
/**
* The given commit is to be cherry-picked. The client should commit
* the changes and continue if there are no conflicts.
*/
GIT_REBASE_OPERATION_PICK = 0,
/**
* The given commit is to be cherry-picked, but the client should prompt
* the user to provide an updated commit message.
*/
GIT_REBASE_OPERATION_REWORD,
/**
* The given commit is to be cherry-picked, but the client should stop
* to allow the user to edit the changes before committing them.
*/
GIT_REBASE_OPERATION_EDIT,
/**
* The given commit is to be squashed into the previous commit. The
* commit message will be merged with the previous message.
*/
GIT_REBASE_OPERATION_SQUASH,
/**
* The given commit is to be squashed into the previous commit. The
* commit message from this commit will be discarded.
*/
GIT_REBASE_OPERATION_FIXUP,
/**
* No commit will be cherry-picked. The client should run the given
* command and (if successful) continue.
*/
GIT_REBASE_OPERATION_EXEC
} git_rebase_operation_t;
#define GIT_REBASE_OPTIONS_VERSION 1
#define GIT_REBASE_OPTIONS_INIT \
{ GIT_REBASE_OPTIONS_VERSION, 0, 0, NULL, GIT_MERGE_OPTIONS_INIT, \
GIT_CHECKOUT_OPTIONS_INIT, NULL, NULL }
/** Indicates that a rebase operation is not (yet) in progress. */
#define GIT_REBASE_NO_OPERATION SIZE_MAX
/**
* A rebase operation
*
* Describes a single instruction/operation to be performed during the
* rebase.
*/
typedef struct {
/** The type of rebase operation. */
git_rebase_operation_t type;
/**
* The commit ID being cherry-picked. This will be populated for
* all operations except those of type `GIT_REBASE_OPERATION_EXEC`.
*/
const git_oid id;
/**
* The executable the user has requested be run. This will only
* be populated for operations of type `GIT_REBASE_OPERATION_EXEC`.
*/
const char *exec;
} git_rebase_operation;
/**
* Initialize git_rebase_options structure
*
* Initializes a `git_rebase_options` with default values. Equivalent to
* creating an instance with `GIT_REBASE_OPTIONS_INIT`.
*
* @param opts The `git_rebase_options` struct to initialize.
* @param version The struct version; pass `GIT_REBASE_OPTIONS_VERSION`.
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_rebase_options_init(
git_rebase_options *opts,
unsigned int version);
/**
* Initializes a rebase operation to rebase the changes in `branch`
* relative to `upstream` onto another branch. To begin the rebase
* process, call `git_rebase_next`. When you have finished with this
* object, call `git_rebase_free`.
*
* @param out Pointer to store the rebase object
* @param repo The repository to perform the rebase
* @param branch The terminal commit to rebase, or NULL to rebase the
* current branch
* @param upstream The commit to begin rebasing from, or NULL to rebase all
* reachable commits
* @param onto The branch to rebase onto, or NULL to rebase onto the given
* upstream
* @param opts Options to specify how rebase is performed, or NULL
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_rebase_init(
git_rebase **out,
git_repository *repo,
const git_annotated_commit *branch,
const git_annotated_commit *upstream,
const git_annotated_commit *onto,
const git_rebase_options *opts);
/**
* Opens an existing rebase that was previously started by either an
* invocation of `git_rebase_init` or by another client.
*
* @param out Pointer to store the rebase object
* @param repo The repository that has a rebase in-progress
* @param opts Options to specify how rebase is performed
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_rebase_open(
git_rebase **out,
git_repository *repo,
const git_rebase_options *opts);
/**
* Gets the original `HEAD` ref name for merge rebases.
*
* @param rebase The in-progress rebase.
* @return The original `HEAD` ref name
*/
GIT_EXTERN(const char *) git_rebase_orig_head_name(git_rebase *rebase);
/**
* Gets the original `HEAD` id for merge rebases.
*
* @param rebase The in-progress rebase.
* @return The original `HEAD` id
*/
GIT_EXTERN(const git_oid *) git_rebase_orig_head_id(git_rebase *rebase);
/**
* Gets the `onto` ref name for merge rebases.
*
* @param rebase The in-progress rebase.
* @return The `onto` ref name
*/
GIT_EXTERN(const char *) git_rebase_onto_name(git_rebase *rebase);
/**
* Gets the `onto` id for merge rebases.
*
* @param rebase The in-progress rebase.
* @return The `onto` id
*/
GIT_EXTERN(const git_oid *) git_rebase_onto_id(git_rebase *rebase);
/**
* Gets the count of rebase operations that are to be applied.
*
* @param rebase The in-progress rebase
* @return The number of rebase operations in total
*/
GIT_EXTERN(size_t) git_rebase_operation_entrycount(git_rebase *rebase);
/**
* Gets the index of the rebase operation that is currently being applied.
* If the first operation has not yet been applied (because you have
* called `init` but not yet `next`) then this returns
* `GIT_REBASE_NO_OPERATION`.
*
* @param rebase The in-progress rebase
* @return The index of the rebase operation currently being applied.
*/
GIT_EXTERN(size_t) git_rebase_operation_current(git_rebase *rebase);
/**
* Gets the rebase operation specified by the given index.
*
* @param rebase The in-progress rebase
* @param idx The index of the rebase operation to retrieve
* @return The rebase operation or NULL if `idx` was out of bounds
*/
GIT_EXTERN(git_rebase_operation *) git_rebase_operation_byindex(
git_rebase *rebase,
size_t idx);
/**
* Performs the next rebase operation and returns the information about it.
* If the operation is one that applies a patch (which is any operation except
* GIT_REBASE_OPERATION_EXEC) then the patch will be applied and the index and
* working directory will be updated with the changes. If there are conflicts,
* you will need to address those before committing the changes.
*
* @param operation Pointer to store the rebase operation that is to be performed next
* @param rebase The rebase in progress
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_rebase_next(
git_rebase_operation **operation,
git_rebase *rebase);
/**
* Gets the index produced by the last operation, which is the result
* of `git_rebase_next` and which will be committed by the next
* invocation of `git_rebase_commit`. This is useful for resolving
* conflicts in an in-memory rebase before committing them. You must
* call `git_index_free` when you are finished with this.
*
* This is only applicable for in-memory rebases; for rebases within
* a working directory, the changes were applied to the repository's
* index.
*
* @param index The result index of the last operation.
* @param rebase The in-progress rebase.
* @return 0 or an error code
*/
GIT_EXTERN(int) git_rebase_inmemory_index(
git_index **index,
git_rebase *rebase);
/**
* Commits the current patch. You must have resolved any conflicts that
* were introduced during the patch application from the `git_rebase_next`
* invocation.
*
* @param id Pointer in which to store the OID of the newly created commit
* @param rebase The rebase that is in-progress
* @param author The author of the updated commit, or NULL to keep the
* author from the original commit
* @param committer The committer of the rebase
* @param message_encoding The encoding for the message in the commit,
* represented with a standard encoding name. If message is NULL,
* this should also be NULL, and the encoding from the original
* commit will be maintained. If message is specified, this may be
* NULL to indicate that "UTF-8" is to be used.
* @param message The message for this commit, or NULL to use the message
* from the original commit.
* @return Zero on success, GIT_EUNMERGED if there are unmerged changes in
* the index, GIT_EAPPLIED if the current commit has already
* been applied to the upstream and there is nothing to commit,
* -1 on failure.
*/
GIT_EXTERN(int) git_rebase_commit(
git_oid *id,
git_rebase *rebase,
const git_signature *author,
const git_signature *committer,
const char *message_encoding,
const char *message);
/**
* Aborts a rebase that is currently in progress, resetting the repository
* and working directory to their state before rebase began.
*
* @param rebase The rebase that is in-progress
* @return Zero on success; GIT_ENOTFOUND if a rebase is not in progress,
* -1 on other errors.
*/
GIT_EXTERN(int) git_rebase_abort(git_rebase *rebase);
/**
* Finishes a rebase that is currently in progress once all patches have
* been applied.
*
* @param rebase The rebase that is in-progress
* @param signature The identity that is finishing the rebase (optional)
* @return Zero on success; -1 on error
*/
GIT_EXTERN(int) git_rebase_finish(
git_rebase *rebase,
const git_signature *signature);
/**
* Frees the `git_rebase` object.
*
* @param rebase The rebase object
*/
GIT_EXTERN(void) git_rebase_free(git_rebase *rebase);
/** @} */
GIT_END_DECL
#endif