Display packages installed from a repository

9 files changed, 259 insertions, 156 deletions

diff --git a/.gitignore b/.gitignore
index a8d7602..1c6e0ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /config/tea-cleaner.toml
 /log/
 /tmp/
-CMakeLists.txt
+CMakeCache.txt
+CMakeFiles/
 /.cache/
 /build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..6b3667c
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.21)
+project(Katja)
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_CXX_STANDARD 17)
+
+find_package(Boost CONFIG COMPONENTS process program_options REQUIRED)
+
+add_library(backend
+       katja/database.cpp include/katja/database.hpp
+       katja/sbo.cpp include/katja/sbo.hpp
+       katja/repository.cpp include/katja/repository.hpp
+)
+target_include_directories(backend PRIVATE include ${Boost_INCLUDE_DIR})
+
+add_executable(katja cli/main.cpp)
+target_link_libraries(katja PRIVATE backend)
+target_include_directories(katja PRIVATE include ${Boost_INCLUDE_DIR})
+target_link_libraries(katja LINK_PUBLIC ${Boost_LIBRARIES})
diff --git a/cli/main.cpp b/cli/main.cpp
index 614a274..c417b83 100644
--- a/cli/main.cpp
+++ b/cli/main.cpp
@@ -1,171 +1,29 @@
 #include <filesystem>
 #include <iostream>
-#include <fstream>
-#include <algorithm>
-#include <optional>
-#include <boost/algorithm/string.hpp>
-#include "katja/database.hpp"
-
-bool trim_info_line(std::string& info_value)
-{
-    if (boost::algorithm::ends_with(info_value, "\""))
-    {
-        info_value.pop_back();
-        return false;
-    }
-    else if (boost::algorithm::ends_with(info_value, "\\"))
-    {
-        info_value.pop_back();
-        return true;
-    }
-    return false;
-}
-
-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)
-        : program_name(program_name), version(version), homepage(homepage), email(email), maintainer(maintainer)
-    {
-    }
-};
-
-std::optional<info_file> read_slackbuild_info(const std::filesystem::path& info_filepath)
-{
-    std::ifstream info_stream{ info_filepath };
-    std::string info_line, info_variable, info_value;
-    std::string program_name, version, homepage, email, maintainer;
-    std::vector<std::string> download, md5sum, download_x86_64, md5sum_x86_64, requires;
-    bool continuation{ false };
-
-    while (std::getline(info_stream, info_line))
-    {
-        if (info_line.empty())
-        {
-            continue;
-        }
-        else if (!continuation)
-        {
-            auto equals_position = std::find(info_line.cbegin(), info_line.cend(), '=');
-            info_variable = std::string(info_line.cbegin(), equals_position);
-
-            if (equals_position == info_line.cend()
-                    || ++equals_position == info_line.cend() || *equals_position != '"')
-            {
-                return std::nullopt;
-            }
-            info_value = std::string(std::next(equals_position), info_line.cend());
-        }
-        else
-        {
-            info_value += info_line;
-        }
-        continuation = trim_info_line(info_value);
-
-        if (!continuation)
-        {
-            if (info_variable == "PRGNAM")
-            {
-                std::swap(program_name, info_value);
-            }
-            else if (info_variable == "VERSION")
-            {
-                std::swap(version, info_value);
-            }
-            else if (info_variable == "HOMEPAGE")
-            {
-                std::swap(homepage, info_value);
-            }
-            else if (info_variable == "EMAIL")
-            {
-                std::swap(email, info_value);
-            }
-            else if (info_variable == "MAINTAINER")
-            {
-                std::swap(maintainer, info_value);
-            }
-            else if (info_variable == "DOWNLOAD")
-            {
-                boost::split(download, info_value, boost::is_any_of(" "), boost::token_compress_on);
-            }
-            else if (info_variable == "MD5SUM")
-            {
-                boost::split(md5sum, info_value, boost::is_any_of(" "), boost::token_compress_on);
-            }
-            else if (info_variable == "DOWNLOAD_x86_64")
-            {
-                boost::split(download_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
-            }
-            else if (info_variable == "MD5SUM_x86_64")
-            {
-                boost::split(md5sum_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
-            }
-            else if (info_variable == "REQUIRES")
-            {
-                boost::split(requires, info_value, boost::is_any_of(" "), boost::token_compress_on);
-            }
-       }
-    }
-    return std::make_optional<info_file>(program_name, version, homepage, email, maintainer);
-}
-
-void search_for_slackbuilds(std::vector<info_file>& info_files, const std::filesystem::path& directory)
-{
-    for (const auto& entry : std::filesystem::directory_iterator(directory))
-    {
-        std::filesystem::path entry_path = entry;
-        std::filesystem::path info_filename = entry_path;
-        info_filename.replace_extension(".info");
-
-        std::filesystem::path info_filepath = entry_path / info_filename;
 
-        if (std::filesystem::exists(info_filepath))
-        {
-            auto slackbuild_info = read_slackbuild_info(info_filepath);
-
-            if (slackbuild_info.has_value())
-            {
-                info_files.emplace_back(std::move(slackbuild_info.value()));
-            }
-            else
-            {
-                std::cout << info_filepath << std::endl;
-            }
-        }
-        else if (std::filesystem::is_directory(entry_path))
-        {
-            search_for_slackbuilds(info_files, entry_path);
-        }
-    }
-}
+#include "katja/sbo.hpp"
+#include "katja/database.hpp"
 
 int main(int argc, const char **argv)
 {
-    std::vector<info_file> info_files;
+    std::vector<katja::info_file> info_files;
+    std::multimap<std::string, katja::database_package> installed_database = katja::read_installed_database();
 
     if (argc > 1)
     {
         std::filesystem::path slackbuild_repository{ argv[1] };
 
-        search_for_slackbuilds(info_files, slackbuild_repository);
+        katja::search_for_slackbuilds(info_files, slackbuild_repository);
         for (const auto& slackbuild_info : info_files)
         {
-            std::cout << slackbuild_info.program_name << " " << slackbuild_info.version << " " << std::endl;
-        }
-    }
-    else
-    {
-        for (const auto& entry : std::filesystem::directory_iterator(katja::database))
-        {
-            katja::database_package database_entry{ entry.path().filename() };
+            std::multimap<std::string, katja::database_package>::const_iterator installed_package =
+                installed_database.find(slackbuild_info.program_name);
 
-            std::cout << database_entry.to_string() << std::endl;
+            if (installed_package != installed_database.cend())
+            {
+                std::cout << slackbuild_info.program_name << " " << slackbuild_info.version
+                    << " (installed " << installed_package->second.version << ")" << std::endl;
+            }
         }
     }
     return 0;
diff --git a/include/katja/database.hpp b/include/katja/database.hpp
index d4d99e6..ee4816e 100644
--- a/include/katja/database.hpp
+++ b/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();
 }
diff --git a/include/katja/repository.hpp b/include/katja/repository.hpp
new file mode 100644
index 0000000..ca20277
--- /dev/null
+++ b/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
+{
+}
diff --git a/include/katja/sbo.hpp b/include/katja/sbo.hpp
new file mode 100644
index 0000000..ff16dd7
--- /dev/null
+++ b/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);
+}
diff --git a/katja/database.cpp b/katja/database.cpp
index 555e679..11e3730 100644
--- a/katja/database.cpp
+++ b/katja/database.cpp
@@ -1,5 +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/.
+ */
 #include "katja/database.hpp"
 
+#include <filesystem>
+
 namespace katja
 {
     database_package database_package::create_database_package(const std::string& fullname)
@@ -47,6 +54,16 @@ namespace katja
     {
     }
 
+    bool database_package::operator<(const database_package& that) const
+    {
+        return this->name < that.name;
+    }
+
+    bool database_package::operator>(const database_package& that) const
+    {
+        return this->name > that.name;
+    }
+
     std::string database_package::to_string() const
     {
         std::string package_string;
@@ -64,4 +81,16 @@ namespace katja
 
         return package_string;
     }
+
+    std::multimap<std::string, database_package> read_installed_database()
+    {
+        std::multimap<std::string, database_package> result;
+
+        for (const auto& entry : std::filesystem::directory_iterator(katja::database))
+        {
+            database_package database_entry{ entry.path().filename() };
+            result.emplace(database_entry.name, database_entry);
+        }
+        return result;
+    }
 }
diff --git a/katja/repository.cpp b/katja/repository.cpp
new file mode 100644
index 0000000..e9a345c
--- /dev/null
+++ b/katja/repository.cpp
@@ -0,0 +1,8 @@
+/*
+ * 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/.
+ */
+namespace katja
+{
+}
diff --git a/katja/sbo.cpp b/katja/sbo.cpp
new file mode 100644
index 0000000..161e834
--- /dev/null
+++ b/katja/sbo.cpp
@@ -0,0 +1,139 @@
+/*
+ * 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/.
+ */
+#include <fstream>
+
+#include <boost/algorithm/string.hpp>
+
+#include "katja/sbo.hpp"
+
+namespace katja
+{
+    info_file::info_file(const std::string& program_name, const std::string& version,
+            const std::string homepage, const std::string& email, const std::string& maintainer)
+        : program_name(program_name), version(version), homepage(homepage), email(email), maintainer(maintainer)
+    {
+    }
+
+    bool trim_info_line(std::string& info_value)
+    {
+        if (boost::algorithm::ends_with(info_value, "\""))
+        {
+            info_value.pop_back();
+            return false;
+        }
+        else if (boost::algorithm::ends_with(info_value, "\\"))
+        {
+            info_value.pop_back();
+            return true;
+        }
+        return false;
+    }
+
+    std::optional<info_file> read_slackbuild_info(const std::filesystem::path& info_filepath)
+    {
+        std::ifstream info_stream{ info_filepath };
+        std::string info_line, info_variable, info_value;
+        std::string program_name, version, homepage, email, maintainer;
+        std::vector<std::string> download, md5sum, download_x86_64, md5sum_x86_64, requires;
+        bool continuation{ false };
+
+        while (std::getline(info_stream, info_line))
+        {
+            if (info_line.empty())
+            {
+                continue;
+            }
+            else if (!continuation)
+            {
+                auto equals_position = std::find(info_line.cbegin(), info_line.cend(), '=');
+                info_variable = std::string(info_line.cbegin(), equals_position);
+
+                if (equals_position == info_line.cend()
+                        || ++equals_position == info_line.cend() || *equals_position != '"')
+                {
+                    return std::nullopt;
+                }
+                info_value = std::string(std::next(equals_position), info_line.cend());
+            }
+            else
+            {
+                info_value += info_line;
+            }
+            continuation = trim_info_line(info_value);
+
+            if (!continuation)
+            {
+                if (info_variable == "PRGNAM")
+                {
+                    std::swap(program_name, info_value);
+                }
+                else if (info_variable == "VERSION")
+                {
+                    std::swap(version, info_value);
+                }
+                else if (info_variable == "HOMEPAGE")
+                {
+                    std::swap(homepage, info_value);
+                }
+                else if (info_variable == "EMAIL")
+                {
+                    std::swap(email, info_value);
+                }
+                else if (info_variable == "MAINTAINER")
+                {
+                    std::swap(maintainer, info_value);
+                }
+                else if (info_variable == "DOWNLOAD")
+                {
+                    boost::split(download, info_value, boost::is_any_of(" "), boost::token_compress_on);
+                }
+                else if (info_variable == "MD5SUM")
+                {
+                    boost::split(md5sum, info_value, boost::is_any_of(" "), boost::token_compress_on);
+                }
+                else if (info_variable == "DOWNLOAD_x86_64")
+                {
+                    boost::split(download_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
+                }
+                else if (info_variable == "MD5SUM_x86_64")
+                {
+                    boost::split(md5sum_x86_64, info_value, boost::is_any_of(" "), boost::token_compress_on);
+                }
+                else if (info_variable == "REQUIRES")
+                {
+                    boost::split(requires, info_value, boost::is_any_of(" "), boost::token_compress_on);
+                }
+           }
+        }
+        return std::make_optional<info_file>(program_name, version, homepage, email, maintainer);
+    }
+
+    void search_for_slackbuilds(std::vector<info_file>& info_files, const std::filesystem::path& directory)
+    {
+        for (const auto& entry : std::filesystem::directory_iterator(directory))
+        {
+            std::filesystem::path entry_path = entry;
+            std::filesystem::path info_filename = entry_path.filename();
+            info_filename.replace_extension(".info");
+
+            std::filesystem::path info_filepath = entry_path / info_filename;
+
+            if (std::filesystem::exists(info_filepath))
+            {
+                auto slackbuild_info = read_slackbuild_info(info_filepath);
+
+                if (slackbuild_info.has_value())
+                {
+                    info_files.emplace_back(std::move(slackbuild_info.value()));
+                }
+            }
+            else if (std::filesystem::is_directory(entry_path))
+            {
+                search_for_slackbuilds(info_files, entry_path);
+            }
+        }
+    }
+}