Ichthyostega
1c5ceaef15
This is kind of a workaround to avoid having to maintain two variants. Explanation: between Boost 1.42 and 1.52 there was the transition to a reworked version of the filesystem library, itroducing some breaking changes The new version distinguishes much clearer between the native and the generic representation of paths -- which becomes relevant when porting to non-POXIX operating systems. Actually the intention was to use the generic path representation in all configuration; currently this distinction is moot, since we're caring only for POSIX systems. So the workaround is to use the fsys::path::string() function, which is available in both versions, but changed meaning to yield the native string. Later, when able to deprecate older Boost versions, we should switch to generic_string() Note: an alternative solution was found by Mike Fisher in 3b39f35 using the compiletime define BOOST_FILESYSTEM_VERSION=2 See also ticket #896
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
/*
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BasicSetup - elementary self-configuration of the application
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Copyright (C) Lumiera.org
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2011, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "common/basic-setup.hpp"
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#include "lib/searchpath.hpp"
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#include "lib/error.hpp"
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#include "lib/util.hpp"
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extern "C" {
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#include <unistd.h>
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}
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#include <boost/filesystem.hpp>
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#include <iostream>
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#include <fstream>
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namespace lumiera {
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using std::string;
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using std::ifstream;
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namespace fsys = boost::filesystem;
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namespace opt = boost::program_options;
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namespace { // details of the bootstrap process...
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// Helper to locate a module using a search path spec
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using lib::resolveModulePath;
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/** use the general mechanism for resolving a search path
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* to get the absolute path of the \c setup.ini */
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string
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resolve (fsys::path iniSpec)
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{
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string searchpath = iniSpec.parent_path().string(); ///////////TICKET #896
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return resolveModulePath (iniSpec.filename(), searchpath);
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}
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}//(End) implementation details
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/**
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* Creating the BasicSetup object performs the
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* initial self-configuration of the Lumiera Application.
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* For this, the \c setup.ini file is located relative to the
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* current application executable, read in and parsed into a
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* map of setup variables.
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*/
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BasicSetup::BasicSetup (string bootstrapIni)
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: syntax("Lumiera installation and platform configuration")
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, settings()
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{
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syntax.add_options()
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("Lumiera.gui", opt::value<string>(),
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"name of the Lumiera GUI plugin to load")
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("Lumiera.modulepath", opt::value<string>(),
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"search path for loadable modules. "
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"May us $ORIGIN to refer to the EXE location")
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("Lumiera.configpath", opt::value<string>(),
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"search path for extended configuration. "
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"Extended Config system not yet implemented "
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"Ignored as of 2/2011")
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("Lumiera.title", opt::value<string>(),
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"title of the Lumiera Application, e.g. for windows")
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("Lumiera.version", opt::value<string>(),
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"Application version string")
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("Lumiera.website", opt::value<string>(),
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"URL of the Lumiera website")
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("Lumiera.authors", opt::value<string>(),
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"names of Lumiera authors, for 'about' dialog. Separated by '|'")
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("Gui.stylesheet", opt::value<string>(),
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"name of the GTK stylesheet to use. Will be searched in resource path")
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("Gui.iconpath", opt::value<string>(),
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"search path for icons")
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("Gui.resourcepath", opt::value<string>(),
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"general search path for UI resources")
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;
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ifstream configIn (resolve(bootstrapIni).c_str());
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opt::parsed_options parsed = opt::parse_config_file (configIn, syntax);
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opt::store (parsed, settings);
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opt::notify(settings);
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}
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} // namespace lumiera
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