core: Add a periodic donation request (#8981)

Will fire once in december and july. Disableable with `ecosystem:no_donation:nag`

src/helpers/fs/FsUtils.cpp

@@ -0,0 +1,107 @@
+#include "FsUtils.hpp"
+#include "../../debug/Log.hpp"
+
+#include <cstdlib>
+#include <filesystem>
+
+#include <hyprutils/string/String.hpp>
+#include <hyprutils/string/VarList.hpp>
+using namespace Hyprutils::String;
+
+std::optional<std::string> NFsUtils::getDataHome() {
+    const auto  DATA_HOME = getenv("XDG_DATA_HOME");
+
+    std::string dataRoot;
+
+    if (!DATA_HOME) {
+        const auto HOME = getenv("HOME");
+
+        if (!HOME) {
+            Debug::log(ERR, "FsUtils::getDataHome: can't get data home: no $HOME or $XDG_DATA_HOME");
+            return std::nullopt;
+        }
+
+        dataRoot = HOME + std::string{"/.local/share/"};
+    } else
+        dataRoot = DATA_HOME + std::string{"/"};
+
+    std::error_code ec;
+    if (!std::filesystem::exists(dataRoot, ec) || ec) {
+        Debug::log(ERR, "FsUtils::getDataHome: can't get data home: inaccessible / missing");
+        return std::nullopt;
+    }
+
+    dataRoot += "hyprland/";
+
+    if (!std::filesystem::exists(dataRoot, ec) || ec) {
+        Debug::log(LOG, "FsUtils::getDataHome: no hyprland data home, creating.");
+        std::filesystem::create_directory(dataRoot, ec);
+        if (ec) {
+            Debug::log(ERR, "FsUtils::getDataHome: can't create new data home for hyprland");
+            return std::nullopt;
+        }
+        std::filesystem::permissions(dataRoot, std::filesystem::perms::owner_read | std::filesystem::perms::owner_write | std::filesystem::perms::owner_exec, ec);
+        if (ec)
+            Debug::log(WARN, "FsUtils::getDataHome: couldn't set perms on hyprland data store. Proceeding anyways.");
+    }
+
+    if (!std::filesystem::exists(dataRoot, ec) || ec) {
+        Debug::log(ERR, "FsUtils::getDataHome: no hyprland data home, failed to create.");
+        return std::nullopt;
+    }
+
+    return dataRoot;
+}
+
+std::optional<std::string> NFsUtils::readFileAsString(const std::string& path) {
+    std::error_code ec;
+
+    if (!std::filesystem::exists(path, ec) || ec)
+        return std::nullopt;
+
+    std::ifstream file(path);
+    if (!file.good())
+        return std::nullopt;
+
+    return trim(std::string((std::istreambuf_iterator<char>(file)), (std::istreambuf_iterator<char>())));
+}
+
+bool NFsUtils::writeToFile(const std::string& path, const std::string& content) {
+    std::ofstream of(path, std::ios::trunc);
+    if (!of.good()) {
+        Debug::log(ERR, "CVersionKeeperManager: couldn't open an ofstream for writing the version file.");
+        return false;
+    }
+
+    of << content;
+    of.close();
+
+    return true;
+}
+
+bool NFsUtils::executableExistsInPath(const std::string& exe) {
+    if (!getenv("PATH"))
+        return false;
+
+    static CVarList paths(getenv("PATH"), 0, ':', true);
+
+    for (auto& p : paths) {
+        std::string     path = p + std::string{"/"} + exe;
+        std::error_code ec;
+        if (!std::filesystem::exists(path, ec) || ec)
+            continue;
+
+        if (!std::filesystem::is_regular_file(path, ec) || ec)
+            continue;
+
+        auto stat = std::filesystem::status(path, ec);
+        if (ec)
+            continue;
+
+        auto perms = stat.permissions();
+
+        return std::filesystem::perms::none != (perms & std::filesystem::perms::others_exec);
+    }
+
+    return false;
+}