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/* ckutil.h - utility functions for ck ---------------------------------*- C -*-
*
* This file is part of ck, the config keeper
*
* -----------------------------------------------------------------------------
*
* Copyright (C) 2018 Anastasis Grammenos
* GPLv3 (see LICENCE for the full notice)
*
* -----------------------------------------------------------------------------
*
* Utility funtions and global constants.
*
* -------------------------------------------------------------------------- */
#ifndef CKUTIL_H
#define CKUTIL_H
/*******************/
/* global includes */
/*******************/
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#define PRINT_ERR(ERROR) \
printf("--[ Error ]--\n%s\n", ERROR);
#define UNUSED(x) (void)(x)
/********************/
/* global constants */
/********************/
/* String length - Small */
#define STR_S 30
/* String length -Medium */
#define STR_M 100
/* String length - Large */
#define STR_L 400
/********************/
/* string functions */
/********************/
/* Create the config name to be used when storing a new config to
* the VC or SCRT dir */
extern void str_make_ck_config_name(char *ret, const char *path,
const char *progName);
/* Joins the two strings into ret, with a '/' in between */
extern void str_join_dirname_with_basename(char *ret, const char *path,
const char *progName);
/* Returns 1 if str contains only whitespace, or nothing,
* else returns 0. */
extern int str_is_empty(const char *s);
extern char *swap_tilde_with_home(char *ret, const char *s, const char *home);
extern char *swap_home_with_tilde(char *ret, const char *s, const char *home);
/*********************/
/* utility functions */
/*********************/
/* Returns 1 if path is a directory, else returns 0. */
extern int util_is_dir(const char *path);
/* Returns 1 if file(or dir) exists, else returns 0.
* Pass a char array in absPath to get the absolute path
* of the file it it exists. Pass NULL if no need. */
extern int util_file_exists(const char *path, char *absPath);
/* Returns 1 if file(or dir) is readable and writable,
* else returns 0. */
extern int util_is_file_rw(const char *path);
/* Returns 1 if file is link 0 otherwise */
extern int util_is_file_link(const char *path);
/* Wrapper around mkdir with 0775 permissions */
extern void util_mkdir(const char *path);
/* Moves file from path, to destination
* keeping the same permissions.
* Only deletes original on successful copy */
extern int util_move_file(const char *path, const char* dest);
/* Wrapper around symlink() */
extern int util_symlink_file(const char *path, const char* dest);
/* Chnage owner and group of `new` and make it like `old`*/
extern int util_own_grp_copy(const char *new, const char* old);
extern int util_is_link_owned_by_root(const char *link);
#endif // CKUTIL_H
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