//////////////////////////////////////////////////////////////////////////////
//! Find the path for a file assuming that
//! files are either in data/ or in ../../../src/<executable_name>/data/.
//!
//! @return the path if succeeded, otherwise 0
//! @param filename name of the file
//! @param executable_path optional absolute path of the executable
//////////////////////////////////////////////////////////////////////////////
char*
findFilePath(const char* filename, const char* executable_path)
{
// search in data/
if (filename == 0)
return 0;
size_t filename_len = strlen(filename);
const char data_folder[] = "../../data/";
size_t data_folder_len = strlen(data_folder);
char* file_path =
(char*) malloc( sizeof(char) * (data_folder_len + filename_len + 1));
strcpy(file_path, data_folder);
strcat(file_path, filename);
size_t file_path_len = strlen(file_path);
file_path[file_path_len] = '\0';
std::fstream fh0(file_path, std::fstream::in);
if (fh0.good())
return file_path;
free( file_path);
// search in ../../../src/<executable_name>/data/
if (executable_path == 0)
return 0;
size_t executable_path_len = strlen(executable_path);
const char* exe;
for (exe = executable_path + executable_path_len - 1;
exe >= executable_path; --exe)
if (*exe == '/' || *exe == '\\')
break;
if (exe < executable_path)
exe = executable_path;
else
++exe;
size_t executable_len = strlen(exe);
size_t executable_dir_len = executable_path_len - executable_len;
const char projects_relative_path[] = "../../../src/";
size_t projects_relative_path_len = strlen(projects_relative_path);
file_path =
(char*) malloc( sizeof(char) * (executable_path_len +
projects_relative_path_len + 1 + data_folder_len + filename_len + 1));
strncpy(file_path, executable_path, executable_dir_len);
file_path[executable_dir_len] = '\0';
strcat(file_path, projects_relative_path);
strcat(file_path, exe);
file_path_len = strlen(file_path);
if (*(file_path + file_path_len - 1) == 'e' &&
*(file_path + file_path_len - 2) == 'x' &&
*(file_path + file_path_len - 3) == 'e' &&
*(file_path + file_path_len - 4) == '.') {
*(file_path + file_path_len - 4) = '/';
*(file_path + file_path_len - 3) = '\0';
}
else {
*(file_path + file_path_len - 0) = '/';
*(file_path + file_path_len + 1) = '\0';
}
strcat(file_path, data_folder);
strcat(file_path, filename);
file_path_len = strlen(file_path);
file_path[file_path_len] = '\0';
std::fstream fh1(file_path, std::fstream::in);
if (fh1.good())
return file_path;
free( file_path);
return 0;
}
static void test_get()
{
bpd::file_handle fh1(get_test_handle());
BOOST_REQUIRE_EQUAL(fh1.get(), get_test_handle());
}
