void Python::initpaths()
{
/*
* char pwd[2048];
* getcwd (pwd,2047);
* pwd[2047]='\0';
* for (int i=0;pwd[i]!='\0';i++) {
* if (pwd[i]=='\\')
* pwd[i]=DELIM;
* }
*/
std::string moduledir( vs_config->getVariable( "data", "python_modules", "modules" ) );
std::string basesdir( vs_config->getVariable( "data", "python_bases", "bases" ) );
/*
* std::string changepath ("import sys\nprint sys.path\nsys.path = ["
* "\""+std::string(pwd)+DELIMSTR"modules"DELIMSTR"builtin\""
* ",\""+std::string(pwd)+DELIMSTR+moduledir+string("\"")+
* ",\""+std::string(pwd)+DELIMSTR+basesdir + string("\"")+
* "]\n");
*/
std::string modpaths( "\"\"," );
//Find all the mods dir (ignore homedir)
for (unsigned int i = 1; i < VSFileSystem::Rootdir.size(); i++) {
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+moduledir+PATHSEP "builtin\",";
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+moduledir+PATHSEP "quests\",";
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+moduledir+PATHSEP "missions\",";
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+moduledir+PATHSEP "ai\",";
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+moduledir+"\",";
modpaths += "r\""+VSFileSystem::Rootdir[i]+PATHSEP+basesdir+"\"";
if ( i+1 < VSFileSystem::Rootdir.size() )
modpaths += ",";
}
/*
* string::size_type backslash;
* while ((backslash=modpaths.find("\\"))!=std::string::npos) {
* modpaths[backslash]='/';
* }*/
std::string changepath( "import sys\nprint(sys.path)\nsys.path = ["+modpaths+"] + sys.path\n" );
/*
* std::string changepath ("import sys\nprint sys.path\nsys.path = ["
* "\""+VSFileSystem::datadir+DELIMSTR"modules"DELIMSTR"builtin\""
* ",\""+VSFileSystem::datadir+DELIMSTR+moduledir+string("\"")+
* ",\""+VSFileSystem::datadir+DELIMSTR+basesdir + string("\"")+
* "]\n");
*/
VSFileSystem::vs_fprintf( stderr, "running %s", changepath.c_str() );
char *temppython = strdup( changepath.c_str() );
PyRun_SimpleString( temppython );
Python::reseterrors();
free( temppython );
}
const fs::path&
module_runtime_path(const std::string& dtype)
{
path_map& paths(module_paths());
path_map::iterator ipath(paths.find(dtype));
// Is this a valid dtype?
if (ipath == paths.end())
{
boost::format fmt("Invalid runtime path type “%1%”");
fmt % dtype;
throw std::logic_error(fmt.str());
}
Module& module = ipath->second;
// Return cached result if previously determined.
if(!module.realpath.empty())
return module.realpath;
// dtype set explicitly in environment.
if (getenv(module.envvar.c_str()))
{
fs::path dir(getenv(module.envvar.c_str()));
if (validate_path(dir))
{
module.realpath = boost::filesystem::canonical(dir);
return module.realpath;
}
}
// Full module path in environment + relative component
if (getenv(module.module_envvar.c_str()))
{
fs::path home(getenv(module.module_envvar.c_str()));
home /= module.relpath;
if (validate_path(home))
{
module.realpath = boost::filesystem::canonical(home);
return module.realpath;
}
}
// Full root path in environment + relative component
if (getenv(module.root_envvar.c_str()))
{
fs::path home(getenv(module.root_envvar.c_str()));
home /= module.relpath;
if (validate_path(home))
{
module.realpath = boost::filesystem::canonical(home);
return module.realpath;
}
}
// Full prefix is available only when configured explicitly.
if (validate_path(module.install_prefix))
{
// Full specific path.
if (validate_path(module.abspath))
{
module.realpath = boost::filesystem::canonical(module.abspath);
return module.realpath;
}
// Full root path + relative component
fs::path home(module.install_prefix);
home /= module.relpath;
if (validate_path(home))
{
module.realpath = boost::filesystem::canonical(home);
return module.realpath;
}
}
else
{
fs::path module_lib_path;
if (module.module_path)
{
module_lib_path = module.module_path();
}
if (module_lib_path.has_parent_path())
{
fs::path moduledir(module_lib_path.parent_path());
bool match = true;
fs::path libdir(module.shlibpath);
while(!libdir.empty())
{
if (libdir.filename() == moduledir.filename())
{
libdir = libdir.parent_path();
moduledir = moduledir.parent_path();
}
else
{
match = false;
break;
}
}
if (match && validate_path(moduledir))
{
moduledir /= module.relpath;
if (validate_path(moduledir))
{
module.realpath = boost::filesystem::canonical(moduledir);
return module.realpath;
}
}
}
}
boost::format fmt("Could not determine Bio-Formats runtime path for “%1%” directory");
fmt % dtype;
throw std::runtime_error(fmt.str());
}
