52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/**
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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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* @file configVariableSearchPath.cxx
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* @author drose
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* @date 2004-10-21
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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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* Recopies the config variable into the search path for 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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size_t num_unique_references = _core->get_num_unique_references();
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for (size_t 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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Filename dir = Filename::from_os_specific(expanded);
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dir.make_true_case();
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_cache.append_directory(dir);
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}
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}
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if (_prefix.is_empty() && _postfix.is_empty() &&
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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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