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Add support for XDG base directory. #295

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Add support for XDG base directory. #295

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95 changes: 67 additions & 28 deletions src/platform.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -94,21 +94,37 @@ std::string Platform::FindStateCacheFolder() {
}

#elif defined(__linux__)
static std::string TryUseEnvForResurceFolder(std::string env) {
const static std::string data_path = env + "/abaddon"s;
for (const auto &path : { "."s, data_path, std::string(ABADDON_DEFAULT_RESOURCE_DIR) }) {
if (util::IsFolder(path + "/res") && util::IsFolder(path + "/css")) {
return path;
}
}
return "";
}

std::string Platform::FindResourceFolder() {
static std::string found_path;
static bool found = false;
if (found) return found_path;

const auto data_env = std::getenv("XDG_DATA_HOME");
const auto path = TryUseEnvForResurceFolder(data_env);
if (path != "") {
found_path = path;
found = true;
return path;
}

const auto home_env = std::getenv("HOME");
if (home_env != nullptr) {
const static std::string home_path = home_env + "/.local/share/abaddon"s;

for (const auto &path : { "."s, home_path, std::string(ABADDON_DEFAULT_RESOURCE_DIR) }) {
if (util::IsFolder(path + "/res") && util::IsFolder(path + "/css")) {
found_path = path;
found = true;
return found_path;
}
const static std::string home_path = home_env + "/.local/share"s;
const auto path = TryUseEnvForResurceFolder(home_path);
if (path != "") {
found_path = path;
found = true;
return found_path;
}
}

Expand All @@ -118,6 +134,19 @@ std::string Platform::FindResourceFolder() {
return found_path;
}

static std::string FindOrCreateConfigDirInPath(std::string path) {
if (auto config_path = path + "/abaddon/abaddon.ini"s; util::IsFile(config_path)) {
return config_path;
}
std::error_code ec;
const auto config_path = path + "/abaddon"s;
if (!util::IsFolder(config_path))
std::filesystem::create_directories(config_path, ec);
if (util::IsFolder(config_path))
return config_path + "/abaddon.ini";
return "";
}

std::string Platform::FindConfigFile() {
const auto cfg = std::getenv("ABADDON_CONFIG");
if (cfg != nullptr) return cfg;
Expand All @@ -126,35 +155,45 @@ std::string Platform::FindConfigFile() {
if (util::IsFile("./abaddon.ini"))
return "./abaddon.ini";

if (const auto home_env = std::getenv("HOME")) {
// use ~/.config if present
if (auto home_path = home_env + "/.config/abaddon/abaddon.ini"s; util::IsFile(home_path)) {
return home_path;
}
if (const auto config_env = std::getenv("XDG_CONFIG_HOME")) {
const auto path = FindOrCreateConfigDirInPath(config_env);
if (path != "")
return path;
}

// fallback to ~/.config if the directory exists/can be created
std::error_code ec;
const auto home_path = home_env + "/.config/abaddon"s;
if (!util::IsFolder(home_path))
std::filesystem::create_directories(home_path, ec);
if (util::IsFolder(home_path))
return home_path + "/abaddon.ini";
if (const auto home_env = std::getenv("HOME")) {
const auto config_path = std::string(home_env) + "/.config";
const auto path = FindOrCreateConfigDirInPath(config_path);
if (path != "")
return path;
}

// fallback to cwd if cant find + cant make in ~/.config
spdlog::get("discord")->warn("can't find configuration file!");
return "./abaddon.ini";
}

static std::string FindOrCreateCacheDirInPath(std::string path) {
auto cache_path = path + "/abaddon"s;
std::error_code ec;
if (!util::IsFolder(cache_path))
std::filesystem::create_directories(cache_path, ec);
if (util::IsFolder(cache_path))
return cache_path;
return "";
}

std::string Platform::FindStateCacheFolder() {
const auto home_env = std::getenv("HOME");
if (home_env != nullptr) {
auto home_path = home_env + "/.cache/abaddon"s;
std::error_code ec;
if (!util::IsFolder(home_path))
std::filesystem::create_directories(home_path, ec);
if (util::IsFolder(home_path))
return home_path;
if (const auto cache_env = std::getenv("XDG_CACHE_HOME")) {
const auto path = FindOrCreateCacheDirInPath(cache_env);
if (path != "")
return path;
}
if (const auto home_env = std::getenv("HOME")) {
const auto cache_path = std::string(home_env) + "/.cache"s;
const auto path = FindOrCreateCacheDirInPath(cache_path);
if (path != "")
return path;
}
spdlog::get("discord")->warn("can't find cache folder!");
return ".";
Expand Down