53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
// Filename: configVariableSearchPath.cxx
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// Created by: drose (21Oct04)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "configVariableSearchPath.h"
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#include "executionEnvironment.h"
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////////////////////////////////////////////////////////////////////
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// Function: ConfigVariableSearchPath::reload_search_path
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// Access: Private
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// Description: Recopies the config variable into the search path for
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// returning its value.
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////////////////////////////////////////////////////////////////////
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void ConfigVariableSearchPath::
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reload_search_path() {
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nassertv(_core != (ConfigVariableCore *)NULL);
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mark_cache_valid(_local_modified);
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_cache.clear();
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_cache.append_path(_prefix);
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int num_unique_references = _core->get_num_unique_references();
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for (int i = 0; i < num_unique_references; i++) {
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const ConfigDeclaration *decl = _core->get_unique_reference(i);
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const ConfigPage *page = decl->get_page();
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Filename page_filename(page->get_name());
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Filename page_dirname = page_filename.get_dirname();
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ExecutionEnvironment::shadow_environment_variable("THIS_PRC_DIR", page_dirname.to_os_specific());
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string expanded = ExecutionEnvironment::expand_string(decl->get_string_value());
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ExecutionEnvironment::clear_shadow("THIS_PRC_DIR");
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if (!expanded.empty()) {
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_cache.append_directory(Filename::from_os_specific(expanded));
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}
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}
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if (num_unique_references == 0) {
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// An empty search path implicitly has the default value.
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_cache = _default_value;
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}
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_cache.append_path(_postfix);
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}
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