1 files changed, 52 insertions, 0 deletions
diff --git a/src/flags.cpp b/src/flags.cpp
new file mode 100644
index 0000000..4369794
--- /dev/null
+++ b/src/flags.cpp
@@ -0,0 +1,52 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "flags.hpp"
+#include "os.hpp"
+#include "util.hpp"
+
+#include <fmt/format.h>
+#include <fstream>
+#include <nlohmann/json.hpp>
+
+namespace fs = std::filesystem;
+using json = nlohmann::json;
+
+// read configuration file
+Flags::Flags()
+{
+    const auto home = os::getenv("HOME").value_or(util::temp_directory_path());
+    const auto config_home = os::getenv("XDG_CONFIG_HOME").value_or(fmt::format("{}/.config", home));
+    config_file = fmt::format("{}/ueberzugpp/config.json", config_home);
+    if (fs::exists(config_file)) {
+        read_config_file();
+    }
+}
+
+void Flags::read_config_file()
+{
+    std::ifstream ifs(config_file);
+    const auto data = json::parse(ifs);
+    if (!data.contains("layer")) {
+        return;
+    }
+    const auto &layer = data.at("layer");
+    silent = layer.value("silent", false);
+    output = layer.value("output", "");
+    no_cache = layer.value("no-cache", false);
+    no_opencv = layer.value("no-opencv", false);
+    use_opengl = layer.value("opengl", false);
+}