Display packages installed from a repository

include/katja/database.hpp

@@ -1,6 +1,12 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 #pragma once
 
 #include <string>
+#include <map>
 
 namespace katja
 {
@@ -21,8 +27,11 @@ namespace katja
 
         database_package(const std::string& fullname);
 
+        bool operator<(const database_package& that) const;
+        bool operator>(const database_package& that) const;
+
         std::string to_string() const;
     };
 
-
+    std::multimap<std::string, database_package> read_installed_database();
 }

include/katja/repository.hpp

@@ -0,0 +1,10 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+namespace katja
+{
+}

include/katja/sbo.hpp

@@ -0,0 +1,29 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+#include <string>
+#include <vector>
+#include <filesystem>
+#include <optional>
+
+namespace katja
+{
+    struct info_file
+    {
+        const std::string program_name;
+        const std::string version;
+        const std::string homepage;
+        const std::string email;
+        const std::string maintainer;
+
+        info_file(const std::string& program_name, const std::string& version,
+                const std::string homepage, const std::string& email, const std::string& maintainer);
+    };
+
+    std::optional<info_file> read_slackbuild_info(const std::filesystem::path& info_filepath);
+    void search_for_slackbuilds(std::vector<info_file>& info_files, const std::filesystem::path& directory);
+}