Elements  5.12
A C++ base framework for the Euclid Software.
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Configuration.cpp
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1 
24 
25 #include <algorithm> // for remove_if
26 #include <iterator>
27 #include <map>
28 #include <string> // for string
29 #include <vector> // for vector
30 
31 #include <boost/filesystem/operations.hpp> // for exists
32 
33 #include "ElementsKernel/Path.h" // for Path::VARIABLE, Path::Type
34 #include "ElementsKernel/System.h" // for DEFAULT_INSTALL_PREFIX
35 
36 using std::string;
37 
38 namespace Elements {
39 
42 }
43 
44 // Instantiation of the most expected types
45 template Path::Item getConfigurationPath(const Path::Item& file_name, bool raise_exception);
46 template Path::Item getConfigurationPath(const string& file_name, bool raise_exception);
47 
49 
50  auto location_list = Path::getLocations(Path::Type::configuration, exist_only);
51 
52  // the search is extended to the default system /usr/share/conf
53  location_list.push_back(Path::Item(System::DEFAULT_INSTALL_PREFIX) / "share" / "conf");
54 
55  if (exist_only) {
56  auto new_end = std::remove_if(location_list.begin(),
57  location_list.end(),
58  [](const Path::Item& p){
59  return (not boost::filesystem::exists(p));
60  });
61  location_list.erase(new_end, location_list.end());
62  }
63 
64  return location_list;
65 }
66 
67 } // namespace Elements
ELEMENTS_API Path::Item getConfigurationPath(const T &file_name, bool raise_exception=true)
ELEMENTS_API std::string getConfigurationVariableName()
ELEMENTS_API const std::map< Type, const std::string > VARIABLE
map containing the name of the path variable for each type
Definition: Path.cpp:44
ELEMENTS_API std::vector< Item > getLocations(const Type &path_type, bool exist_only=false)
function to get the locations for the specific type
Definition: Path.cpp:96
T remove_if(T...args)
STL class.
This file is intended to iron out all the differences between systems (currently Linux and MacOSX) ...
boost::filesystem::path Item
Definition: Path.h:61
STL class.
provide functions to retrieve resources pointed by environment variables
ELEMENTS_API std::vector< Path::Item > getConfigurationLocations(bool exist_only=false)
const std::string DEFAULT_INSTALL_PREFIX
constant for the canonical installation prefix (on Linux and MacOSX at least)
Definition: System.h:90
provide functions to retrieve configuration files