libgit2/include/git2/branch.h
Russell Belfer 5dca201072 Update iterators for consistency across library
This updates all the `foreach()` type functions across the library
that take callbacks from the user to have a consistent behavior.
The rules are:

* A callback terminates the loop by returning any non-zero value
* Once the callback returns non-zero, it will not be called again
  (i.e. the loop stops all iteration regardless of state)
* If the callback returns non-zero, the parent fn returns GIT_EUSER
* Although the parent returns GIT_EUSER, no error will be set in
  the library and `giterr_last()` will return NULL if called.

This commit makes those changes across the library and adds tests
for most of the iteration APIs to make sure that they follow the
above rules.
2012-08-03 17:08:01 -07:00

126 lines
3.5 KiB
C

/*
* 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_branch_h__
#define INCLUDE_git_branch_h__
#include "common.h"
#include "types.h"
/**
* @file git2/branch.h
* @brief Git branch parsing routines
* @defgroup git_branch Git branch management
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Create a new branch pointing at a target commit
*
* A new direct reference will be created pointing to
* this target commit. If `force` is true and a reference
* already exists with the given name, it'll be replaced.
*
* @param oid_out Pointer where to store the OID of the target commit.
*
* @param repo Repository where to store the branch.
*
* @param branch_name Name for the branch; this name is
* validated for consistency. It should also not conflict with
* an already existing branch name.
*
* @param target Object to which this branch should point. This object
* must belong to the given `repo` and can either be a git_commit or a
* git_tag. When a git_tag is being passed, it should be dereferencable
* to a git_commit which oid will be used as the target of the branch.
*
* @param force Overwrite existing branch.
*
* @return 0 or an error code.
* A proper reference is written in the refs/heads namespace
* pointing to the provided target commit.
*/
GIT_EXTERN(int) git_branch_create(
git_oid *oid_out,
git_repository *repo,
const char *branch_name,
const git_object *target,
int force);
/**
* Delete an existing branch reference.
*
* @param repo Repository where lives the branch.
*
* @param branch_name Name of the branch to be deleted;
* this name is validated for consistency.
*
* @param branch_type Type of the considered branch. This should
* be valued with either GIT_BRANCH_LOCAL or GIT_BRANCH_REMOTE.
*
* @return 0 on success, GIT_ENOTFOUND if the branch
* doesn't exist or an error code.
*/
GIT_EXTERN(int) git_branch_delete(
git_repository *repo,
const char *branch_name,
git_branch_t branch_type);
/**
* Loop over all the branches and issue a callback for each one.
*
* If the callback returns a non-zero value, this will stop looping.
*
* @param repo Repository where to find the branches.
*
* @param list_flags Filtering flags for the branch
* listing. Valid values are GIT_BRANCH_LOCAL, GIT_BRANCH_REMOTE
* or a combination of the two.
*
* @param branch_cb Callback to invoke per found branch.
*
* @param payload Extra parameter to callback function.
*
* @return 0 on success, GIT_EUSER on non-zero callback, or error code
*/
GIT_EXTERN(int) git_branch_foreach(
git_repository *repo,
unsigned int list_flags,
int (*branch_cb)(
const char *branch_name,
git_branch_t branch_type,
void *payload),
void *payload
);
/**
* Move/rename an existing branch reference.
*
* @param repo Repository where lives the branch.
*
* @param old_branch_name Current name of the branch to be moved;
* this name is validated for consistency.
*
* @param new_branch_name Target name of the branch once the move
* is performed; this name is validated for consistency.
*
* @param force Overwrite existing branch.
*
* @return 0 on success, GIT_ENOTFOUND if the branch
* doesn't exist or an error code.
*/
GIT_EXTERN(int) git_branch_move(
git_repository *repo,
const char *old_branch_name,
const char *new_branch_name,
int force);
/** @} */
GIT_END_DECL
#endif