👷 add new function to control pacmanconf repos

.github/workflows/build.yml

@@ -37,6 +37,7 @@ jobs:
           cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
           cd ${{github.workspace}}/build
           ./tests/test-initcpio
+          ./tests/test-pacmanconf
         shell: bash
   build_withoutdev:
     name: Build (DEVENV OFF)

src/pacmanconf_repo.cpp

@@ -20,6 +20,7 @@
 #include <range/v3/range/conversion.hpp>
 #include <range/v3/view/join.hpp>
 #include <range/v3/view/split.hpp>
+#include <range/v3/view/filter.hpp>
 
 #if defined(__clang__)
 #pragma clang diagnostic pop
@@ -61,4 +62,19 @@ bool push_repos_front(const std::string_view& file_path, const std::string_view&
     return true;
 }
 
+auto get_repo_list(const std::string_view& file_path) noexcept -> std::vector<std::string> {
+    auto&& file_content = utils::read_whole_file(file_path);
+    if (file_content.empty()) {
+        spdlog::error("[PACMANCONFREPO] '{}' error occurred!", file_path);
+        return {};
+    }
+    auto&& result = file_content | ranges::views::split('\n')
+        | ranges::views::filter([](auto&& rng) {
+              auto&& line = std::string_view(&*rng.begin(), static_cast<size_t>(ranges::distance(rng)));
+              return !(line.empty() || line.starts_with("#") || !line.starts_with("[") || line.starts_with("[options]"));
+          })
+        | ranges::to<std::vector<std::string>>();
+    return result;
+}
+
 }  // namespace detail::pacmanconf

src/pacmanconf_repo.hpp

@@ -1,10 +1,13 @@
 #ifndef PACMANCONF_REPO_HPP
 #define PACMANCONF_REPO_HPP
 
+#include <string>       // for string
 #include <string_view>  // for string_view
+#include <vector>       // for vector
 
 namespace detail::pacmanconf {
 bool push_repos_front(const std::string_view& file_path, const std::string_view& value) noexcept;
+auto get_repo_list(const std::string_view& file_path) noexcept -> std::vector<std::string>;
 }  // namespace detail::pacmanconf
 
 #endif  // PACMANCONF_REPO_HPP

tests/CMakeLists.txt

@@ -2,6 +2,7 @@ list(APPEND test_SOURCES
         ${CMAKE_SOURCE_DIR}/src/config.cpp
         ${CMAKE_SOURCE_DIR}/src/utils.cpp
         ${CMAKE_SOURCE_DIR}/src/cpu.cpp
+        ${CMAKE_SOURCE_DIR}/src/pacmanconf_repo.cpp
         ${CMAKE_SOURCE_DIR}/src/initcpio.cpp
         ${CMAKE_SOURCE_DIR}/src/disk.cpp
         ${CMAKE_SOURCE_DIR}/src/drivers.cpp

tests/meson.build

@@ -5,6 +5,7 @@ test_libreq = shared_library('test_libreq',
         source_path + 'config.cpp',
         source_path + 'utils.cpp',
         source_path + 'cpu.cpp',
+        source_path + 'pacmanconf_repo.cpp',
         source_path + 'disk.cpp',
         source_path + 'drivers.cpp',
         source_path + 'widgets.cpp',
@@ -42,3 +43,11 @@ executable(
   link_with: [test_libreq],
   include_directories: [include_directories(source_path)],
   install: false)
+
+executable(
+  'test-pacmanconf',
+  files('unit-pacmanconf.cpp'),
+  dependencies: deps,
+  link_with: [test_libreq],
+  include_directories: [include_directories(source_path)],
+  install: false)

tests/unit-initcpio.cpp

@@ -8,8 +8,6 @@
 #include <vector>
 #include <filesystem>
 
-#include <fmt/core.h>
-
 namespace fs = std::filesystem;
 
 static constexpr auto MKINITCPIO_STR = R"(

tests/unit-pacmanconf.cpp

@@ -0,0 +1,151 @@
+#include "utils.hpp"
+#include "pacmanconf_repo.hpp"
+
+#include <cassert>
+#include <fstream>
+#include <string>
+#include <string_view>
+#include <vector>
+#include <filesystem>
+
+namespace fs = std::filesystem;
+
+static constexpr auto PACMANCONF_STR = R"(
+[options]
+HoldPkg     = pacman glibc
+Architecture = auto
+
+# Misc options
+Color
+CheckSpace
+VerbosePkgLists
+ParallelDownloads = 10
+
+# Repository entries are of the format:
+#       [repo-name]
+#       Server = ServerName
+#       Include = IncludePath
+#
+# The header [repo-name] is crucial - it must be present and
+# uncommented to enable the repo.
+#
+
+# The testing repositories are disabled by default. To enable, uncomment the
+# repo name header and Include lines. You can add preferred servers immediately
+# after the header, and they will be used before the default mirrors.
+
+#[testing]
+#Include = /etc/pacman.d/mirrorlist
+
+#[core-debug]
+#Include = /etc/pacman.d/mirrorlist
+
+#[extra-debug]
+#Include = /etc/pacman.d/mirrorlist
+
+[core]
+Include = /etc/pacman.d/mirrorlist
+
+[extra]
+Include = /etc/pacman.d/mirrorlist
+
+#[community-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[community]
+Include = /etc/pacman.d/mirrorlist
+
+#[multilib-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[multilib]
+Include = /etc/pacman.d/mirrorlist
+)";
+
+static constexpr auto PACMANCONF_TEST = R"(
+[options]
+HoldPkg     = pacman glibc
+Architecture = auto
+
+# Misc options
+Color
+CheckSpace
+VerbosePkgLists
+ParallelDownloads = 10
+
+# Repository entries are of the format:
+#       [repo-name]
+#       Server = ServerName
+#       Include = IncludePath
+#
+# The header [repo-name] is crucial - it must be present and
+# uncommented to enable the repo.
+#
+
+# The testing repositories are disabled by default. To enable, uncomment the
+# repo name header and Include lines. You can add preferred servers immediately
+# after the header, and they will be used before the default mirrors.
+
+#[testing]
+#Include = /etc/pacman.d/mirrorlist
+
+#[core-debug]
+#Include = /etc/pacman.d/mirrorlist
+
+#[extra-debug]
+#Include = /etc/pacman.d/mirrorlist
+
+[cachyos]
+Include = /etc/pacman.d/cachyos-mirrorlist
+
+
+[core]
+Include = /etc/pacman.d/mirrorlist
+
+[extra]
+Include = /etc/pacman.d/mirrorlist
+
+#[community-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[community]
+Include = /etc/pacman.d/mirrorlist
+
+#[multilib-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[multilib]
+Include = /etc/pacman.d/mirrorlist)";
+
+
+int main() {
+    static constexpr std::string_view filename{"/tmp/pacman.conf"};
+
+    // Open pacmanconf file for writing.
+    std::ofstream pacmanconf_file{filename.data()};
+    assert(pacmanconf_file.is_open());
+
+    // Setup pacmanconf file.
+    pacmanconf_file << PACMANCONF_STR;
+    pacmanconf_file.close();
+
+    // Get current repos.
+    auto repo_list = detail::pacmanconf::get_repo_list(filename);
+    assert(!repo_list.empty());
+    assert((repo_list == std::vector<std::string>{"[core]", "[extra]", "[community]", "[multilib]"}));
+
+    // Push repo.
+    assert(detail::pacmanconf::push_repos_front(filename, "[cachyos]\nInclude = /etc/pacman.d/cachyos-mirrorlist"));
+    
+    // Check repo list after pushing repo.
+    repo_list = detail::pacmanconf::get_repo_list(filename);
+    assert(!repo_list.empty());
+    assert((repo_list == std::vector<std::string>{"[cachyos]", "[core]", "[extra]", "[community]", "[multilib]"}));
+
+    // Check if file is equal to test data.
+    const auto& file_content = utils::read_whole_file(filename);
+    assert(file_content == PACMANCONF_TEST);
+
+    // Cleanup.
+    fs::remove(filename);
+}