resource_dirs.c

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/*!
   \file lib/gis/resource_dirs.c
 
   \brief GIS Library - Get paths to resource directories.
 
   \author Nicklas Larsson
 
   (c) 2025 by the GRASS Development Team
 
   SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include <stdlib.h>
 
#include <grass/gis.h>
#include <grass/glocale.h>
 
static const char *get_g_env(const char *);
 
const char *G_colors_dir(void)
{
    return get_g_env("GRASS_COLORSDIR");
}
 
const char *G_etcbin_dir(void)
{
    return get_g_env("GRASS_ETCBINDIR");
}
 
const char *G_etc_dir(void)
{
    return get_g_env("GRASS_ETCDIR");
}
 
const char *G_fonts_dir(void)
{
    return get_g_env("GRASS_FONTSDIR");
}
 
const char *G_locale_dir(void)
{
    return get_g_env("GRASS_LOCALEDIR");
}
 
static const char *get_g_env(const char *env_var)
{
    const char *value = getenv(env_var);
    if (value)
        return value;
 
    G_fatal_error(_("Incomplete GRASS session: Variable '%s' not set"),
                  env_var);
}