Lumiera  0.pre.03
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basic-setup.cpp
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1 /*
2  BasicSetup - elementary self-configuration of the application
3 
4  Copyright (C) Lumiera.org
5  2011, Hermann Vosseler <Ichthyostega@web.de>
6 
7  This program is free software; you can redistribute it and/or
8  modify it under the terms of the GNU General Public License as
9  published by the Free Software Foundation; either version 2 of
10  the License, or (at your option) any later version.
11 
12  This program is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  GNU General Public License for more details.
16 
17  You should have received a copy of the GNU General Public License
18  along with this program; if not, write to the Free Software
19  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 
21 * *****************************************************/
22 
23 
36 #include "common/basic-setup.hpp"
37 #include "lib/searchpath.hpp"
38 #include "lib/error.hpp"
39 #include "lib/util.hpp"
40 
41 extern "C" {
42 #include <unistd.h>
43 }
44 #include <boost/filesystem.hpp>
45 #include <fstream>
46 
47 
48 namespace lumiera {
49 
50  using std::string;
51  using std::ifstream;
52 
53  namespace fsys = boost::filesystem;
54  namespace opt = boost::program_options;
55 
56  namespace { // details of the bootstrap process...
57 
58 
59  // Helper to locate a module using a search path spec
61 
64  string
65  resolve (fsys::path iniSpec)
66  {
67  string searchpath = iniSpec.parent_path().string();
68  return resolveModulePath (iniSpec.filename(), searchpath);
69  }
70 
71  }//(End) implementation details
72 
73 
74 
82  BasicSetup::BasicSetup (string bootstrapIni)
83  : syntax("Lumiera installation and platform configuration")
84  , settings()
85  {
86  syntax.add_options()
87  ("Lumiera.gui", opt::value<string>(),
88  "name of the Lumiera GUI plugin to load")
89  ("Lumiera.modulepath", opt::value<string>(),
90  "search path for loadable modules. "
91  "May use $ORIGIN to refer to the EXE location")
92  ("Lumiera.configpath", opt::value<string>(),
93  "search path for extended configuration. "
94  "Extended Config system not yet implemented "
95  "Ignored as of 2/2011")
96  ("Lumiera.title", opt::value<string>(),
97  "title of the Lumiera Application, e.g. for windows")
98  ("Lumiera.version", opt::value<string>(),
99  "Application version string")
100  ("Lumiera.website", opt::value<string>(),
101  "URL of the Lumiera website")
102  ("Lumiera.authors", opt::value<string>(),
103  "names of Lumiera authors, for 'about' dialog. Separated by '|'")
104  ("Lumiera.copyright", opt::value<string>(),
105  "year(s) for the author's copyright claim")
106 
107  ("Gui.stylesheet", opt::value<string>(),
108  "name of the GTK stylesheet to use. Will be searched in resource path")
109  ("Gui.iconpath", opt::value<string>(),
110  "search path for icons")
111  ("Gui.resourcepath", opt::value<string>(),
112  "general search path for UI resources")
113  ;
114 
115  ifstream configIn (resolve(bootstrapIni).c_str());
116 
117 
118  opt::parsed_options parsed = opt::parse_config_file (configIn, syntax);
119 
120  opt::store (parsed, settings);
121  opt::notify(settings);
122  }
123 
124 
125 
126 } // namespace lumiera
Bootstrap and self-configuration of the application at startup.
Helpers to handle directory search paths.
Tiny helper functions and shortcuts to be used everywhere Consider this header to be effectively incl...
BasicSetup(string bootstrapIni)
Creating the BasicSetup object performs the initial self-configuration of the Lumiera Application...
Definition: basic-setup.cpp:82
Lumiera error handling (C++ interface).
Lumiera public interface.
Definition: advice.cpp:113
string resolveModulePath(fsys::path moduleName, string searchPath)
helper to establish the location to search for loadable modules, configuration files, icons and further resources.
Definition: searchpath.cpp:88
string resolve(fsys::path iniSpec)
use the general mechanism for resolving a search path to get the absolute path of the setup...
Definition: basic-setup.cpp:65