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/*
* Copyright (C) 2009-2011 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_config_h__
#define INCLUDE_git_config_h__
#include "common.h"
#include "types.h"
/**
* @file git2/config.h
* @brief Git config management routines
* @defgroup git_config Git config management routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Generic backend that implements the interface to
* access a configuration file
*/
struct git_config_file {
struct git_config *cfg;
/* Open means open the file/database and parse if necessary */
int (*open)(struct git_config_file *);
int (*get)(struct git_config_file *, const char *key, const char **value);
int (*set)(struct git_config_file *, const char *key, const char *value);
int (*del)(struct git_config_file *, const char *key);
int (*foreach)(struct git_config_file *, int (*fn)(const char *, const char *, void *), void *data);
void (*free)(struct git_config_file *);
};
/**
* Locate the path to the global configuration file
*
* The user or global configuration file is usually
* located in `$HOME/.gitconfig`.
*
* This method will try to guess the full path to that
* file, if the file exists. The returned path
* may be used on any `git_config` call to load the
* global configuration file.
*
* @param global_config_path Buffer of GIT_PATH_MAX length to store the path
* @return GIT_SUCCESS if a global configuration file has been
* found. Its path will be stored in `buffer`.
*/
GIT_EXTERN(int) git_config_find_global(char *global_config_path);
/**
* Locate the path to the system configuration file
*
* If /etc/gitconfig doesn't exist, it will look for
* %PROGRAMFILES%\Git\etc\gitconfig.
* @param system_config_path Buffer of GIT_PATH_MAX length to store the path
* @return GIT_SUCCESS if a system configuration file has been
* found. Its path will be stored in `buffer`.
*/
GIT_EXTERN(int) git_config_find_system(char *system_config_path);
/**
* Open the global configuration file
*
* Utility wrapper that calls `git_config_find_global`
* and opens the located file, if it exists.
*
* @param out Pointer to store the config instance
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_open_global(git_config **out);
/**
* Create a configuration file backend for ondisk files
*
* These are the normal `.gitconfig` files that Core Git
* processes. Note that you first have to add this file to a
* configuration object before you can query it for configuration
* variables.
*
* @param out the new backend
* @param path where the config file is located
*/
GIT_EXTERN(int) git_config_file__ondisk(struct git_config_file **out, const char *path);
/**
* Allocate a new configuration object
*
* This object is empty, so you have to add a file to it before you
* can do anything with it.
*
* @param out pointer to the new configuration
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_new(git_config **out);
/**
* 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 will be accessed first).
*
* @param cfg the configuration to add the file to
* @param file the configuration file (backend) to add
* @param priority the priority the backend should have
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_add_file(git_config *cfg, git_config_file *file, int priority);
/**
* Add an on-disk config file instance to an existing config
*
* The on-disk file pointed at by `path` will be opened and
* parsed; it's expected to be a native Git config file following
* the default Git config syntax (see man git-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 will be accessed first).
*
* @param cfg the configuration to add the file to
* @param path path to the configuration file (backend) to add
* @param priority the priority the backend should have
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_add_file_ondisk(git_config *cfg, const char *path, int priority);
/**
* Create a new config instance containing a single on-disk file
*
* This method is a simple utility wrapper for the following sequence
* of calls:
* - git_config_new
* - git_config_add_file_ondisk
*
* @param cfg The configuration instance to create
* @param path Path to the on-disk file to open
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_open_ondisk(git_config **cfg, const char *path);
/**
* Free the configuration and its associated memory and files
*
* @param cfg the configuration to free
*/
GIT_EXTERN(void) git_config_free(git_config *cfg);
/**
* Get the value of an integer config variable.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param out pointer to the variable where the value should be stored
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_get_int32(git_config *cfg, const char *name, int32_t *out);
/**
* Get the value of a long integer config variable.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param out pointer to the variable where the value should be stored
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_get_int64(git_config *cfg, const char *name, int64_t *out);
/**
* Get the value of a boolean config variable.
*
* This function uses the usual C convention of 0 being false and
* anything else true.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param out pointer to the variable where the value should be stored
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_get_bool(git_config *cfg, const char *name, int *out);
/**
* Get the value of a string config variable.
*
* The string is owned by the variable and should not be freed by the
* user.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param out pointer to the variable's value
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_get_string(git_config *cfg, const char *name, const char **out);
/**
* Set the value of an integer config variable.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param value Integer value for the variable
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_set_int32(git_config *cfg, const char *name, int32_t value);
/**
* Set the value of a long integer config variable.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param value Long integer value for the variable
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_set_int64(git_config *cfg, const char *name, int64_t value);
/**
* Set the value of a boolean config variable.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param value the value to store
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_set_bool(git_config *cfg, const char *name, int value);
/**
* Set the value of a string config variable.
*
* A copy of the string is made and the user is free to use it
* afterwards.
*
* @param cfg where to look for the variable
* @param name the variable's name
* @param value the string to store.
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_config_set_string(git_config *cfg, const char *name, const char *value);
/**
* Delete a config variable
*
* @param cfg the configuration
* @param name the variable to delete
*/
GIT_EXTERN(int) git_config_delete(git_config *cfg, const char *name);
/**
* Perform an operation on each config variable.
*
* The callback receives the normalized name and value of each variable
* in the config backend, and the data pointer passed to this function.
* As soon as one of the callback functions returns something other than 0,
* this function returns that value.
*
* @param cfg where to get the variables from
* @param callback the function to call on each variable
* @param payload the data to pass to the callback
* @return GIT_SUCCESS or the return value of the callback which didn't return 0
*/
GIT_EXTERN(int) git_config_foreach(
git_config *cfg,
int (*callback)(const char *var_name, const char *value, void *payload),
void *payload);
/** @} */
GIT_END_DECL
#endif
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