Added COMMONCPP_LITE option

.gitignore

@@ -0,0 +1 @@
+CMakeLists.txt.user*

CMakeLists.txt

@@ -1,8 +1,12 @@
+cmake_minimum_required(VERSION 3.15)
+
 project(commoncpp LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+option(COMMONCPP_LITE "Build lite version on CommonCPP only" No)
+
 add_library(commoncpp STATIC
     config.cpp         include/commoncpp/config.hpp
     utils.cpp          include/commoncpp/utils.hpp
@@ -11,3 +15,7 @@ add_library(commoncpp STATIC
 
 target_include_directories(commoncpp PUBLIC include/)
 target_include_directories(commoncpp PRIVATE include/commoncpp/)
+
+if (COMMONCPP_LITE)
+    target_compile_definitions(commoncpp PUBLIC COMMONCPP_LITE)
+endif()

config.cpp

@@ -1,3 +1,4 @@
+#ifndef COMMONCPP_LITE
 #include "config.hpp"
 #include "utils.hpp"
 
@@ -104,3 +105,4 @@ void Configuration::parse(const std::string &file) {
         fill(file_parser(file), true);
 }
 }
+#endif // COMMONCPP_LITE

include/commoncpp/config.hpp

@@ -1,3 +1,4 @@
+#ifndef COMMONCPP_LITE
 #ifndef CONFIG_HPP
 #define CONFIG_HPP
 #include <string>
@@ -46,3 +47,4 @@ public:
 };
 }
 #endif // CONFIG_HPP
+#endif // COMMONCPP_LITE

include/commoncpp/pooled_thread.hpp

@@ -1,3 +1,4 @@
+#ifndef COMMONCPP_LITE
 #ifndef SCHEDULED_THREAD_HPP
 #define SCHEDULED_THREAD_HPP
 #include <functional>
@@ -64,3 +65,4 @@ namespace [[deprecated("Use the common namespace instead of commoncpp")]] common
 using namespace common;
 }
 #endif // SCHEDULED_THREAD_HPP
+#endif // COMMONCPP_LITE

include/commoncpp/utils.hpp

@@ -2,12 +2,18 @@
 #define UTILS_HPP
 #include <string>
 #include <string_view>
+#ifndef COMMONCPP_LITE
 #include <vector>
+#endif
+#include <utility>
 
 
 namespace common {
 namespace utils {
+#ifndef COMMONCPP_LITE
 std::vector<std::string_view> str_split(std::string_view s, char delimiter, size_t times = -1);
+#endif
+std::pair<std::string_view, std::string_view> str_split_once(std::string_view s, std::string_view delim);
 bool str_replace_in_place(std::string& subject, std::string_view search, const std::string& replace);
 std::string_view max_words(std::string_view text, unsigned count);
 bool contains(std::string_view value, std::string_view other);
@@ -15,8 +21,10 @@ bool starts_with(std::string_view value, std::string_view beginning);
 bool ends_with(std::string_view value, std::string_view ending);
 bool force_trailing(std::string& value, std::string_view ending);
 bool chop_down(std::string& s, char delim);
+#ifndef COMMONCPP_LITE
 std::string remove_nonprintable(std::string_view);
 std::string read_text_file(const std::string& path);
+#endif
 
 [[noreturn]] inline void unreachable() {
     // Uses compiler specific extensions if possible.

pooled_thread.cpp

@@ -1,3 +1,4 @@
+#ifndef COMMONCPP_LITE
 #include "pooled_thread.hpp"
 
 #include <exception>
@@ -38,3 +39,4 @@ void PooledThread::main_loop() {
 
 }
 }
+#endif // COMMONCPP_LITE

utils.cpp

@@ -1,14 +1,17 @@
 #include "utils.hpp"
 
+#ifndef COMMONCPP_LITE
 #include <sstream>
 #include <fstream>
 #include <stdexcept>
 #include <cerrno>
+#endif
 
 
 
 namespace common {
 namespace utils {
+#ifndef COMMONCPP_LITE
 std::vector<std::string_view> str_split(std::string_view s, char delimiter, size_t times) {
     std::vector<std::string_view> to_return;
     decltype(s.size()) start = 0, finish = 0;
@@ -20,6 +23,17 @@ std::vector<std::string_view> str_split(std::string_view s, char delimiter, size
     to_return.emplace_back(s.substr(start));
     return to_return;
 }
+#endif
+
+std::pair<std::string_view, std::string_view> str_split_once(std::string_view s, std::string_view delim) {
+    // Find the delimiter
+    auto pos = s.find(delim);
+    if (pos == s.npos) {
+        return {s, ""};
+    }
+    // Split there
+    return {s.substr(0, pos), s.substr(pos+delim.size(), s.size()-1)};
+}
 
 bool str_replace_in_place(std::string& subject, std::string_view search,
                          const std::string& replace) {
@@ -80,6 +94,7 @@ bool chop_down(std::string& s, char delim) {
     return true;
 }
 
+#ifndef COMMONCPP_LITE
 std::string remove_nonprintable(std::string_view str) {
     std::string fres;
     for (const char c : str) {
@@ -95,5 +110,6 @@ std::string read_text_file(const std::string& path) {
     sstr << in.rdbuf();
     return sstr.str();
 }
+#endif
 }
 }