/usr/include/git2/sys/config.h is in libgit2-dev 0.26.0+dfsg.1-1.1build1.
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_sys_git_config_backend_h__
#define INCLUDE_sys_git_config_backend_h__
#include "git2/common.h"
#include "git2/types.h"
#include "git2/config.h"
/**
* @file git2/sys/config.h
* @brief Git config backend routines
* @defgroup git_backend Git custom backend APIs
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Every iterator must have this struct as its first element, so the
* API can talk to it. You'd define your iterator as
*
* struct my_iterator {
* git_config_iterator parent;
* ...
* }
*
* and assign `iter->parent.backend` to your `git_config_backend`.
*/
struct git_config_iterator {
git_config_backend *backend;
unsigned int flags;
/**
* Return the current entry and advance the iterator. The
* memory belongs to the library.
*/
int (*next)(git_config_entry **entry, git_config_iterator *iter);
/**
* Free the iterator
*/
void (*free)(git_config_iterator *iter);
};
/**
* Generic backend that implements the interface to
* access a configuration file
*/
struct git_config_backend {
unsigned int version;
/** True if this backend is for a snapshot */
int readonly;
struct git_config *cfg;
/* Open means open the file/database and parse if necessary */
int (*open)(struct git_config_backend *, git_config_level_t level);
int (*get)(struct git_config_backend *, const char *key, git_config_entry **entry);
int (*set)(struct git_config_backend *, const char *key, const char *value);
int (*set_multivar)(git_config_backend *cfg, const char *name, const char *regexp, const char *value);
int (*del)(struct git_config_backend *, const char *key);
int (*del_multivar)(struct git_config_backend *, const char *key, const char *regexp);
int (*iterator)(git_config_iterator **, struct git_config_backend *);
/** Produce a read-only version of this backend */
int (*snapshot)(struct git_config_backend **, struct git_config_backend *);
/**
* Lock this backend.
*
* Prevent any writes to the data store backing this
* backend. Any updates must not be visible to any other
* readers.
*/
int (*lock)(struct git_config_backend *);
/**
* Unlock the data store backing this backend. If success is
* true, the changes should be committed, otherwise rolled
* back.
*/
int (*unlock)(struct git_config_backend *, int success);
void (*free)(struct git_config_backend *);
};
#define GIT_CONFIG_BACKEND_VERSION 1
#define GIT_CONFIG_BACKEND_INIT {GIT_CONFIG_BACKEND_VERSION}
/**
* Initializes a `git_config_backend` with default values. Equivalent to
* creating an instance with GIT_CONFIG_BACKEND_INIT.
*
* @param backend the `git_config_backend` struct to initialize.
* @param version Version of struct; pass `GIT_CONFIG_BACKEND_VERSION`
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_config_init_backend(
git_config_backend *backend,
unsigned int version);
/**
* Add a generic config file instance to an existing config
*
* Note that the configuration object will free the file
* automatically.
*
* Further queries on this config object will access each
* of the config file instances in order (instances with
* a higher priority level will be accessed first).
*
* @param cfg the configuration to add the file to
* @param file the configuration file (backend) to add
* @param level the priority level of the backend
* @param force if a config file already exists for the given
* priority level, replace it
* @return 0 on success, GIT_EEXISTS when adding more than one file
* for a given priority level (and force_replace set to 0), or error code
*/
GIT_EXTERN(int) git_config_add_backend(
git_config *cfg,
git_config_backend *file,
git_config_level_t level,
int force);
/** @} */
GIT_END_DECL
#endif
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