/usr/include/git2/reflog.h is in libgit2-dev 0.19.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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_reflog_h__
#define INCLUDE_git_reflog_h__
#include "common.h"
#include "types.h"
#include "oid.h"
/**
* @file git2/reflog.h
* @brief Git reflog management routines
* @defgroup git_reflog Git reflog management routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Read the reflog for the given reference
*
* If there is no reflog file for the given
* reference yet, an empty reflog object will
* be returned.
*
* The reflog must be freed manually by using
* git_reflog_free().
*
* @param out pointer to reflog
* @param ref reference to read the reflog for
* @return 0 or an error code
*/
GIT_EXTERN(int) git_reflog_read(git_reflog **out, const git_reference *ref);
/**
* Write an existing in-memory reflog object back to disk
* using an atomic file lock.
*
* @param reflog an existing reflog object
* @return 0 or an error code
*/
GIT_EXTERN(int) git_reflog_write(git_reflog *reflog);
/**
* Add a new entry to the reflog.
*
* `msg` is optional and can be NULL.
*
* @param reflog an existing reflog object
* @param id the OID the reference is now pointing to
* @param committer the signature of the committer
* @param msg the reflog message
* @return 0 or an error code
*/
GIT_EXTERN(int) git_reflog_append(git_reflog *reflog, const git_oid *id, const git_signature *committer, const char *msg);
/**
* Rename the reflog for the given reference
*
* The reflog to be renamed is expected to already exist
*
* The new name will be checked for validity.
* See `git_reference_create_symbolic()` for rules about valid names.
*
* @param ref the reference
* @param name the new name of the reference
* @return 0 on success, GIT_EINVALIDSPEC or an error code
*/
GIT_EXTERN(int) git_reflog_rename(git_reference *ref, const char *name);
/**
* Delete the reflog for the given reference
*
* @param ref the reference
* @return 0 or an error code
*/
GIT_EXTERN(int) git_reflog_delete(git_reference *ref);
/**
* Get the number of log entries in a reflog
*
* @param reflog the previously loaded reflog
* @return the number of log entries
*/
GIT_EXTERN(size_t) git_reflog_entrycount(git_reflog *reflog);
/**
* Lookup an entry by its index
*
* Requesting the reflog entry with an index of 0 (zero) will
* return the most recently created entry.
*
* @param reflog a previously loaded reflog
* @param idx the position of the entry to lookup. Should be greater than or
* equal to 0 (zero) and less than `git_reflog_entrycount()`.
* @return the entry; NULL if not found
*/
GIT_EXTERN(const git_reflog_entry *) git_reflog_entry_byindex(git_reflog *reflog, size_t idx);
/**
* Remove an entry from the reflog by its index
*
* To ensure there's no gap in the log history, set `rewrite_previous_entry`
* param value to 1. When deleting entry `n`, member old_oid of entry `n-1`
* (if any) will be updated with the value of member new_oid of entry `n+1`.
*
* @param reflog a previously loaded reflog.
*
* @param idx the position of the entry to remove. Should be greater than or
* equal to 0 (zero) and less than `git_reflog_entrycount()`.
*
* @param rewrite_previous_entry 1 to rewrite the history; 0 otherwise.
*
* @return 0 on success, GIT_ENOTFOUND if the entry doesn't exist
* or an error code.
*/
GIT_EXTERN(int) git_reflog_drop(
git_reflog *reflog,
size_t idx,
int rewrite_previous_entry);
/**
* Get the old oid
*
* @param entry a reflog entry
* @return the old oid
*/
GIT_EXTERN(const git_oid *) git_reflog_entry_id_old(const git_reflog_entry *entry);
/**
* Get the new oid
*
* @param entry a reflog entry
* @return the new oid at this time
*/
GIT_EXTERN(const git_oid *) git_reflog_entry_id_new(const git_reflog_entry *entry);
/**
* Get the committer of this entry
*
* @param entry a reflog entry
* @return the committer
*/
GIT_EXTERN(const git_signature *) git_reflog_entry_committer(const git_reflog_entry *entry);
/**
* Get the log message
*
* @param entry a reflog entry
* @return the log msg
*/
GIT_EXTERN(const char *) git_reflog_entry_message(const git_reflog_entry *entry);
/**
* Free the reflog
*
* @param reflog reflog to free
*/
GIT_EXTERN(void) git_reflog_free(git_reflog *reflog);
/** @} */
GIT_END_DECL
#endif
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