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file_util: Use an enum class for GetUserPath()

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Instead of using an unsigned int as a parameter and expecting a user to
always pass in the correct values, we can just convert the enum into an
enum class and use that type as the parameter type instead, which makes
the interface more type safe.

We also get rid of the bookkeeping "NUM_" element in the enum by just
using an unordered map. This function is generally low-frequency in
terms of calls (and I'd hope so, considering otherwise would mean we're
slamming the disk with IO all the time) so I'd consider this acceptable
in this case.
This commit is contained in:
Lioncash 2018-07-21 15:52:42 -04:00
parent 8623af5453
commit 85ca923ed4
11 changed files with 85 additions and 73 deletions
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68
src/common/file_util.cpp
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@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include <sstream>
#include <unordered_map>
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/common_paths.h"
@ -681,67 +682,68 @@ std::string GetSysDirectory() {
// Returns a string with a yuzu data dir or file in the user's home
// directory. To be used in "multi-user" mode (that is, installed).
const std::string& GetUserPath(const unsigned int DirIDX, const std::string& newPath) {
static std::string paths[NUM_PATH_INDICES];
const std::string& GetUserPath(UserPath path, const std::string& new_path) {
static std::unordered_map<UserPath, std::string> paths;
auto& user_path = paths[UserPath::UserDir];
// Set up all paths and files on the first run
if (paths[D_USER_IDX].empty()) {
if (user_path.empty()) {
#ifdef _WIN32
paths[D_USER_IDX] = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
if (!FileUtil::IsDirectory(paths[D_USER_IDX])) {
paths[D_USER_IDX] = AppDataRoamingDirectory() + DIR_SEP EMU_DATA_DIR DIR_SEP;
user_path = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
if (!FileUtil::IsDirectory(user_path)) {
user_path = AppDataRoamingDirectory() + DIR_SEP EMU_DATA_DIR DIR_SEP;
} else {
LOG_INFO(Common_Filesystem, "Using the local user directory");
}
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
paths.emplace(UserPath::ConfigDir, user_path + CONFIG_DIR DIR_SEP);
paths.emplace(UserPath::CacheDir, user_path + CACHE_DIR DIR_SEP);
#else
if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR)) {
paths[D_USER_IDX] = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
user_path = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
paths.emplace(UserPath::ConfigDir, user_path + CONFIG_DIR DIR_SEP);
paths.emplace(UserPath::CacheDir, user_path + CACHE_DIR DIR_SEP);
} else {
std::string data_dir = GetUserDirectory("XDG_DATA_HOME");
std::string config_dir = GetUserDirectory("XDG_CONFIG_HOME");
std::string cache_dir = GetUserDirectory("XDG_CACHE_HOME");
paths[D_USER_IDX] = data_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
paths[D_CONFIG_IDX] = config_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
paths[D_CACHE_IDX] = cache_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
user_path = data_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
paths.emplace(UserPath::ConfigDir, config_dir + DIR_SEP EMU_DATA_DIR DIR_SEP);
paths.emplace(UserPath::CacheDir, cache_dir + DIR_SEP EMU_DATA_DIR DIR_SEP);
}
#endif
paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
paths[D_NAND_IDX] = paths[D_USER_IDX] + NAND_DIR DIR_SEP;
paths[D_SYSDATA_IDX] = paths[D_USER_IDX] + SYSDATA_DIR DIR_SEP;
paths.emplace(UserPath::SDMCDir, user_path + SDMC_DIR DIR_SEP);
paths.emplace(UserPath::NANDDir, user_path + NAND_DIR DIR_SEP);
paths.emplace(UserPath::SysDataDir, user_path + SYSDATA_DIR DIR_SEP);
// TODO: Put the logs in a better location for each OS
paths[D_LOGS_IDX] = paths[D_USER_IDX] + LOG_DIR DIR_SEP;
paths.emplace(UserPath::LogDir, user_path + LOG_DIR DIR_SEP);
}
if (!newPath.empty()) {
if (!FileUtil::IsDirectory(newPath)) {
LOG_ERROR(Common_Filesystem, "Invalid path specified {}", newPath);
return paths[DirIDX];
if (!new_path.empty()) {
if (!FileUtil::IsDirectory(new_path)) {
LOG_ERROR(Common_Filesystem, "Invalid path specified {}", new_path);
return paths[path];
} else {
paths[DirIDX] = newPath;
paths[path] = new_path;
}
switch (DirIDX) {
case D_ROOT_IDX:
paths[D_USER_IDX] = paths[D_ROOT_IDX] + DIR_SEP;
switch (path) {
case UserPath::RootDir:
user_path = paths[UserPath::RootDir] + DIR_SEP;
break;
case D_USER_IDX:
paths[D_USER_IDX] = paths[D_ROOT_IDX] + DIR_SEP;
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
paths[D_NAND_IDX] = paths[D_USER_IDX] + NAND_DIR DIR_SEP;
case UserPath::UserDir:
user_path = paths[UserPath::RootDir] + DIR_SEP;
paths[UserPath::ConfigDir] = user_path + CONFIG_DIR DIR_SEP;
paths[UserPath::CacheDir] = user_path + CACHE_DIR DIR_SEP;
paths[UserPath::SDMCDir] = user_path + SDMC_DIR DIR_SEP;
paths[UserPath::NANDDir] = user_path + NAND_DIR DIR_SEP;
break;
}
}
return paths[DirIDX];
return paths[path];
}
size_t WriteStringToFile(bool text_file, const std::string& str, const char* filename) {