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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* path-prefix.cpp - Inkscape specific prefix handling *//*
* Authors:
* Patrick Storz <eduard.braun2@gmx.de>
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifdef HAVE_CONFIG_H
# include "config.h" // only include where actually required!
#endif
#ifdef _WIN32
#include <windows.h> // for GetModuleFileNameW
#endif
#ifdef __APPLE__
#include <mach-o/dyld.h> // for _NSGetExecutablePath
#endif
#include <glib.h>
#include "path-prefix.h"
/**
* Determine the location of the Inkscape data directory (typically the share/ folder
* from where Inkscape should be loading resources) and append a relative path
*
* - by default use the compile time value of INKSCAPE_DATADIR
* - on Windows inkscape_datadir will be relative to the called executable by default
* (typically inkscape/share but also handles the case where the executable is in a /bin subfolder)
* - if the environment variable INKSCAPE_DATADIR is set it will override all of the above
*/
char *append_inkscape_datadir(const char *relative_path)
{
static gchar const *inkscape_datadir;
if (!inkscape_datadir) {
gchar *datadir;
gchar const *datadir_env = g_getenv("INKSCAPE_DATADIR");
if (datadir_env) {
datadir = g_strdup(datadir_env);
} else {
#ifdef _WIN32
gchar *module_path = g_win32_get_package_installation_directory_of_module(NULL);
datadir = g_build_filename(module_path, "share", NULL);
g_free(module_path);
#elif defined(__APPLE__)
gchar *program_dir = get_program_dir();
if (g_str_has_suffix(program_dir, "Contents/MacOS")) {
datadir = g_build_filename(program_dir, "../Resources/share", nullptr);
} else {
datadir = g_strdup(INKSCAPE_DATADIR);
}
g_free(program_dir);
#else
datadir = g_strdup(INKSCAPE_DATADIR);
#endif
}
#if GLIB_CHECK_VERSION(2,58,0)
inkscape_datadir = g_canonicalize_filename(datadir, NULL);
g_free(datadir);
#else
inkscape_datadir = datadir;
#endif
}
if (!relative_path) {
relative_path = "";
}
#if GLIB_CHECK_VERSION(2,58,0)
return g_canonicalize_filename(relative_path, inkscape_datadir);
#else
return g_build_filename(inkscape_datadir, relative_path, NULL);
#endif
}
/**
* Gets the the currently running program's executable name (including full path)
*
* @return executable name (including full path) encoded as UTF-8
* or NULL if it can't be determined
*/
gchar *get_program_name()
{
static gchar *program_name = NULL;
if (program_name == NULL) {
// There is no portable way to get an executable's name including path, so we need to do it manually.
// TODO: Re-evaluate boost::dll::program_location() once we require Boost >= 1.61
//
// The following platform-specific code is partially based on GdxPixbuf's get_toplevel()
// See also https://stackoverflow.com/a/1024937
#if defined(_WIN32)
wchar_t module_file_name[MAX_PATH];
if (GetModuleFileNameW(NULL, module_file_name, MAX_PATH)) {
program_name = g_utf16_to_utf8((gunichar2 *)module_file_name, -1, NULL, NULL, NULL);
} else {
g_warning("get_program_name() - GetModuleFileNameW failed");
}
#elif defined(__APPLE__)
char pathbuf[PATH_MAX + 1];
uint32_t bufsize = sizeof(pathbuf);
if (_NSGetExecutablePath(pathbuf, &bufsize) == 0) {
program_name = realpath(pathbuf, nullptr);
} else {
g_warning("get_program_name() - _NSGetExecutablePath failed");
}
#elif defined(__linux__)
program_name = g_file_read_link("/proc/self/exe", NULL);
if (!program_name) {
g_warning("get_program_name() - g_file_read_link failed");
}
#else
#warning get_program_name() - no known way to obtain executable name on this platform
g_info("get_program_name() - no known way to obtain executable name on this platform");
#endif
}
return program_name;
}
/**
* Gets the the full path to the directory containing the currently running program's executable
*
* @return full path to directory encoded as UTF-8
* or NULL if it can't be determined
*/
gchar *get_program_dir()
{
return g_path_get_dirname(get_program_name());
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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