conditional compiling and multithreading

Crafter.Build-ModuleFile.cpp

@@ -25,108 +25,194 @@ module;
 #include <iostream>
 #include <regex>
 #include <print>
+#include <execution>
 module Crafter.Build;
 using namespace Crafter::Build;
 namespace fs = std::filesystem;
 
-
+ModulePartition::ModulePartition(const std::string& name, const fs::path& path, Module* parent, const std::string& fileContent, const fs::path& pcmDir) : name(name), path(path), parent(parent) {
-ModuleFile* ModuleFile::CompileModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target) {
-    if(fs::exists(path.generic_string()+".cppm")) {
-        allFilesMutex.lock();
-        if(!allFiles.contains(path)) {
-            return new ModuleFile(path, clangDir, config, pcmDir, target);
-        } else{
-            allFilesMutex.unlock();
-            return allFiles[path];
-        }
-    } else{
-        return nullptr;
-    }
-}
-
-ModuleFile::ModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target): path(path), recompiled(false) {
-    fileMutex.lock();
-    allFiles.insert({path,this});
-    allFilesMutex.unlock();
-    needsRecompiling = !fs::exists((pcmDir/path.filename()).generic_string()+".pcm") || fs::last_write_time(path.generic_string()+".cppm") > fs::last_write_time((pcmDir/path.filename()).generic_string()+".pcm");
-    std::ifstream t(path.generic_string()+".cppm");
-    std::stringstream buffer;
-    buffer << t.rdbuf();
-    std::string fileContent = buffer.str();
-
-    std::regex rgx("import (.*);");
-    std::smatch matches;
-    std::regex_search(fileContent, matches, rgx);
-
-    std::string::const_iterator searchStart( fileContent.cbegin() );
-    while ( regex_search( searchStart, fileContent.cend(), matches, rgx ) )
     {
-        std::string matchString = matches[1].str();
+        std::regex pattern(R"(import :([a-zA-Z_\-0-9\.]*);)");
-        if(matchString[0] == ':'){
+        std::sregex_iterator currentMatch(fileContent.begin(), fileContent.end(), pattern);
-            std::regex rgx2("export module ([a-zA-Z_\\-0-9\\.]*).*;");
+        std::sregex_iterator lastMatch;
-            std::smatch matches2;
-            std::regex_search(fileContent, matches2, rgx2);
-            matchString.erase(0, 1);
-            matchString = matches2[1].str()+"-"+matchString;
-        }
-        fs::path importPath = path.remove_filename()/fs::path(matchString);
-        ModuleFile* file = CompileModuleFile(importPath,clangDir, config, pcmDir, target);
-        if(file){
-            file->fileMutex.lock();
     
-            if(file->needsRecompiling){
+        while (currentMatch != lastMatch) {
+            std::smatch match = *currentMatch;
+            partitionDependencies.push_back(match[1]);
+            ++currentMatch;
+        }
+    }
+    {
+        std::regex pattern(R"(import ([a-zA-Z_\-0-9\.]*);)");
+        std::sregex_iterator currentMatch(fileContent.begin(), fileContent.end(), pattern);
+        std::sregex_iterator lastMatch;
+    
+        while (currentMatch != lastMatch) {
+            std::smatch match = *currentMatch;
+            moduleDependencies.push_back(match[1]);
+            ++currentMatch;
+        }
+    }
+    if(!fs::exists((pcmDir/path.filename()).generic_string()+".pcm")) {
         needsRecompiling = true;
+        needsRecompilingDependency = true;
+    } else if(fs::last_write_time(path.generic_string()+".cppm") > fs::last_write_time((pcmDir/path.filename()).generic_string()+".pcm")) {
+        needsRecompiling = true;
+        needsRecompilingDependency = true;
+    }
 }
 
-            file->fileMutex.unlock();
+void ModulePartition::AddDependants() {
-            dependencies.push_back(file);
+    for(const std::string& dependency: partitionDependencies) {
+        auto pos = parent->partitions.find(dependency);
+        if (pos != parent->partitions.end()) {
+            pos->second.partitionDependants.push_back(this);
+            partitionDependenciesP.push_back(&pos->second);
+        } else {
+            throw std::runtime_error(std::format("Partition {}:{} not found", parent->name, dependency));
         }
-        searchStart = matches.suffix().first;
     }
-    fileMutex.unlock();
-    Compile(clangDir, config, pcmDir, target);
 }
 
-void ModuleFile::Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target) {
+void ModulePartition::Check() {
+    if(!needsRecompiling) {
+        for(ModulePartition* dependency : partitionDependenciesP) {
+            if(dependency->needsRecompilingDependency) {
+                needsRecompiling = true;
+                break;
+            }
+        }
+    }
+}
+
+void ModulePartition::Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags) {
     if(needsRecompiling) {
-        fileMutex.lock();
+        for(ModulePartition* dependency : partitionDependenciesP) {
-        if(!recompiled){
+            if(dependency->needsRecompiling) {
-            for(ModuleFile* dep : dependencies){
+                dependency->compiled->wait(false);
-                dep->Compile(clangDir, config, pcmDir, target);
             }
-
-            std::string flags;
-            for(const std::string& flag : config.flags) {
-                flags+=flag;
         }
-
-            if(config.debug) {
-                flags+=" -g";
-            }
-            
-            std::string march;
-            if(config.target != "wasm32-unknown-wasi"){
-                march = std::format("-march={}", config.march);
-            }
-
         std::string command = std::format("{} {} -std={} {}.cppm --precompile {} -fprebuilt-module-path={} -o {}.pcm {}", clangDir, flags, config.standard, path.generic_string(), march, pcmDir.generic_string(), (pcmDir/path.filename()).generic_string(), target);
         if(config.verbose) {
             std::cout << command << std::endl;
         }
         system(command.c_str());
-
+    }
-
+    *compiled = true;
-
+    compiled->notify_all();
-            recompiled = true;
+}
-            fileMutex.unlock();
+void ModulePartition::CompileSource(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, const fs::path& buildDir) {
-
+    std::string command = std::format("{} -std={} {}.pcm -fprebuilt-module-path={} -c -O{} {} {} -o {}.o {}", clangDir, config.standard, (pcmDir/path.filename()).generic_string(), pcmDir.generic_string(), config.optimizationLevel, march, flags, (buildDir/path.filename()).generic_string(), target);
-            command = std::format("{} -std={} {}.pcm -fprebuilt-module-path={} -c -O{} {} {} -o {}.o {}", clangDir, config.standard, (pcmDir/path.filename()).generic_string(), pcmDir.generic_string(), config.optimizationLevel, march, flags, (config.buildDir/path.filename()).generic_string(), target);
     if(config.verbose) {
         std::cout << command << std::endl;
     }
     system(command.c_str());
-        } else {
+}
-            fileMutex.unlock();
+
+Module::Module(const std::string& name, const fs::path& path, const Configuration& config, const fs::path& pcmDir, std::string& files, const fs::path& buildDir) : name(name), path(path) {
+    for(const fs::path& file: config.moduleFiles) {
+        std::ifstream t(file.generic_string()+".cppm");
+        std::stringstream buffer;
+        buffer << t.rdbuf();
+        std::string fileContent = buffer.str();
+        
+        std::regex pattern("export module ([a-zA-Z_\\-0-9\\.]*):([a-zA-Z_\\-0-9\\.]*);");
+        std::smatch match;
+        if (std::regex_search(fileContent, match, pattern)) {
+            if(match[1] == name) {
+                partitions.insert({match[2], ModulePartition(match[2], file, this, fileContent, pcmDir)});
+                files += std::format("{}.o ",(buildDir/file.filename()).generic_string());
             }
         }
     }
+
+    if(!fs::exists((pcmDir/path.filename()).generic_string()+".pcm")) {
+        needsRecompiling = true;
+    } else if(fs::last_write_time(path.generic_string()+".cppm") > fs::last_write_time((pcmDir/path.filename()).generic_string()+".pcm")) {
+        needsRecompiling = true;
+    }
+
+
+    for(auto& [key, val] : partitions) {
+        val.AddDependants();
+    }
+
+    files += std::format("{}.o ",(buildDir/path.filename()).generic_string());
+}
+
+void Module::Check() {
+    for(auto& [key, val] : partitions) {
+        val.Check();
+    }
+
+    for(auto& [key, val] : partitions) {;
+        if(val.needsRecompilingDependency) {
+            needsRecompiling = true;
+            break;
+        }
+    }
+}
+
+void Module::Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, const fs::path& buildDir) {
+    std::vector<std::thread> threads;
+    for(auto& [key, val] : partitions) {;
+        if(val.needsRecompiling) {
+            threads.emplace_back([&val, &clangDir, &config, &pcmDir, &target, &march, &flags](){
+                val.Compile(clangDir, config, pcmDir, target, march, flags);
+            });
+        }
+    }
+
+    for(std::thread& thread : threads){
+        thread.join();
+    }
+
+    {
+        std::string command = std::format("{} {} -std={} {}.cppm --precompile {} -fprebuilt-module-path={} -o {}.pcm {}", clangDir, flags, config.standard, path.generic_string(), march, pcmDir.generic_string(), (pcmDir/path.filename()).generic_string(), target);
+        if(config.verbose) {
+            std::cout << command << std::endl;
+        }
+        system(command.c_str());
+    }
+
+    std::vector<std::thread> threads2;
+    for(auto& [key, val] : partitions) {;
+        if(val.needsRecompiling) {
+            threads2.emplace_back([&val, &clangDir, &config, &pcmDir, &target, &march, &flags, &buildDir](){
+                val.CompileSource(clangDir, config, pcmDir, target, march, flags, buildDir);
+            });
+        }
+    }
+    threads2.emplace_back([this, &clangDir, &config, &pcmDir, &target, &march, &flags, &buildDir](){
+        std::string command = std::format("{} -std={} {}.pcm -fprebuilt-module-path={} -c -O{} {} {} -o {}.o {}", clangDir, config.standard, (pcmDir/path.filename()).generic_string(), pcmDir.generic_string(), config.optimizationLevel, march, flags, (buildDir/path.filename()).generic_string(), target);
+        if(config.verbose) {
+            std::cout << command << std::endl;
+        }
+        system(command.c_str());
+    });
+
+    for(std::thread& thread : threads2){
+        thread.join();
+    }
+}
+
+std::vector<Module> Module::GetModules(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, std::string& files, const fs::path& buildDir) {
+    std::vector<Module> modules;
+    for(const fs::path& file: config.moduleFiles) {
+        std::ifstream t(file.generic_string()+".cppm");
+        std::stringstream buffer;
+        buffer << t.rdbuf();
+        std::string fileContent = buffer.str();
+        
+        std::regex pattern("export module ([a-zA-Z_\\-0-9\\.]*);");
+        std::smatch match;
+        if (std::regex_search(fileContent, match, pattern)) {
+            modules.emplace_back(match[1], file, config, pcmDir, files, buildDir);
+        }
+    }
+    std::for_each(std::execution::par, modules.begin(), modules.end(), [&clangDir, &config, &pcmDir, &target, &march, &flags, &buildDir](Module& modulee) {
+        modulee.Check();
+        modulee.Compile(clangDir, config, pcmDir, target, march, flags, buildDir);
+    });
+    return modules;
+}

Crafter.Build-ModuleFile.cppm

@@ -23,23 +23,45 @@ module;
 #include <filesystem>
 #include <mutex>
 #include <unordered_map>
+#include <vector>
+#include <atomic>
+#include <thread>
+#include <condition_variable>                                                                                                                                                                                                                                                             
 export module Crafter.Build:ModuleFile;
 import :Configuration;
 namespace fs = std::filesystem;
 
 export namespace Crafter::Build {
-    class ModuleFile {
+    class Module;
+
+    class ModulePartition {
         public:
-        inline static std::mutex allFilesMutex;
+        bool needsRecompilingDependency = false;
-        std::mutex fileMutex;
+        bool needsRecompiling = false;
-        inline static std::unordered_map<fs::path, ModuleFile*> allFiles;
-        bool needsRecompiling;
-        bool recompiled = false;
         fs::path path;
-        std::vector<ModuleFile*> dependencies;
+        Module* parent;
-        static ModuleFile* CompileModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+        std::vector<std::string> moduleDependencies;
-    private:
+        std::vector<ModulePartition*> partitionDependants;
-        ModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+        std::vector<std::string> partitionDependencies;
-        void Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+        std::vector<ModulePartition*> partitionDependenciesP;
+        const std::string name;
+        std::atomic<bool>* compiled = new std::atomic<bool>(false);
+        ModulePartition(const std::string& name, const fs::path& path, Module* parent, const std::string& fileContent, const fs::path& pcmDir);
+        void AddDependants();
+        void Check();
+        void Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags);
+        void CompileSource(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, const fs::path& buildDir);
+    };
+
+    class Module {
+        public:
+        bool needsRecompiling = false;
+        std::unordered_map<std::string, ModulePartition> partitions;
+        const std::string name;
+        const fs::path path;
+        Module(const std::string& name, const fs::path& path, const Configuration& config, const fs::path& pcmDir, std::string& files, const fs::path& buildDir);
+        void Check();
+        void Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, const fs::path& buildDir);
+        static std::vector<Module> GetModules(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, std::string& files, const fs::path& buildDir);
     };
 }

Crafter.Build-Project.cpp

@@ -28,6 +28,7 @@ module;
 #include <filesystem>
 #include <thread>
 #include <glslang/SPIRV/GlslangToSpv.h>
+#include <regex>
 module Crafter.Build;
 using namespace Crafter::Build;
 namespace fs = std::filesystem;
@@ -90,8 +91,16 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
     }
     if (!fs::exists(outputDir)) {
         fs::create_directory(outputDir);
+    } else{
+        for (const auto& entry : fs::directory_iterator(outputDir)) {
+            fs::remove_all(entry);
+        }
     }
 
+    std::string buildDir = config.buildDir/fs::path(config.name);
+    if (!fs::exists(buildDir)) {
+        fs::create_directory(buildDir);
+    }
     std::string target;
     if(!config.target.empty()){
         target = std::format("-target {}", config.target);
@@ -100,7 +109,7 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
     if(config.type == "library" || config.type == "shared-library"){
         pcmDir = outputDir;
     }else{
-        pcmDir = config.buildDir;
+        pcmDir = buildDir;
     }
 
     
@@ -130,19 +139,19 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
 
     for(std::int_fast32_t i = 0; i < depThreads.size(); i++) {
         if(config.dependencies[i].path.ends_with(".git")) {
-            std::string branch;
+            fs::path name = fs::path(config.dependencies[i].path).filename();
+            name.replace_extension();
+            if(!fs::exists(buildDir/name)) {
                 if(!config.dependencies[i].branch.empty()) {
-                fs::path name = fs::path(config.dependencies[i].path).filename();
+                    system(std::format("cd {} && git clone {} && cd {} && git switch {}", buildDir, config.dependencies[i].path, (buildDir/name).generic_string(), config.dependencies[i].branch).c_str());
-                name.replace_extension();
-                branch = std::format(" && cd {} && git switch {}", name.generic_string(), config.dependencies[i].branch);
                 } else if(!config.dependencies[i].commit.empty()){
-                fs::path name = fs::path(config.dependencies[i].path).filename();
+                    system(std::format("cd {} && git clone {} && cd {} && git checkout {}", buildDir, config.dependencies[i].path, (buildDir/name).generic_string(), config.dependencies[i].commit).c_str());
-                name.replace_extension();
+                }
-                branch = std::format(" && cd {} && git checkout {}", name.generic_string(), config.dependencies[i].commit);
+            } else if(config.dependencies[i].commit.empty()) {
+                system(std::format("cd {} && git pull", (buildDir/name).generic_string()).c_str());
             }
-            system(std::format("cd {} && git clone {}{}", config.buildDir, config.dependencies[i].path, branch).c_str());
             config.dependencies[i].path = fs::path(config.dependencies[i].path).filename().replace_extension();
-            Project project = Project::LoadFromJSON(fs::path(config.buildDir)/config.dependencies[i].path/"project.json");
+            Project project = Project::LoadFromJSON(fs::path(buildDir)/config.dependencies[i].path/"project.json");
             libs+=std::format(" -l{}", project.name);
             depThreads[i] = std::thread([i, pcmDir, config, project, binDir]() {
                 project.Build(config.dependencies[i].configuration, pcmDir, binDir);
@@ -154,7 +163,6 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
                 project.Build(config.dependencies[i].configuration, pcmDir, binDir);
             });
         }
-       
     }
 
     std::string name = this->name;
@@ -171,7 +179,7 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
             name+=".wasm";
         }
     } else {
-        clangDir = "clang++ -Wno-unused-command-line-argument";
+        clangDir = "clang++";
     }
 
     std::string flags;
@@ -191,45 +199,25 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
         thread.join();
     }
 
-    std::string files;
-    //std::vector<std::thread> moduleThreads(config.moduleFiles.size());
-    for(std::uint_fast32_t i = 0; i < config.moduleFiles.size(); i++) {
-        //moduleThreads[i] = std::thread([i, &config, pcmDir, target, clangDir](){
-            ModuleFile::CompileModuleFile(config.moduleFiles[i], clangDir, config, pcmDir, target);
-        //});
-        files+=std::format("{}.o ",(config.buildDir/config.moduleFiles[i].filename()).generic_string());
-    }
-    // for(std::thread& thread : moduleThreads){
-    //     thread.join();
-    // }
-
     std::string march;
     if(config.target != "wasm32-unknown-wasi"){
         march = std::format("-march={}", config.march);
     }
 
+    std::string files;
+    std::vector<Module> modules = Module::GetModules(clangDir, config, pcmDir, target, march, flags, files, buildDir);
 
     std::vector<std::thread> threads;
-    for(std::uint_fast32_t i = 0; i < config.sourceFiles.size(); i++) {
+
-        files+=std::format("{}_source.o ",(config.buildDir/config.sourceFiles[i].filename()).generic_string());
+    Source::GetSourceFiles(clangDir, config, pcmDir, target, march, flags, threads, modules, files, buildDir);
-        //if(!fs::exists((config.buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o") || fs::last_write_time(config.sourceFiles[i].generic_string()+".cpp") > fs::last_write_time((config.buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o")) {
-            threads.emplace_back([i, &config, pcmDir, target, clangDir, flags, march](){
-                std::string command = std::format("{} -std={} {}.cpp -fprebuilt-module-path={} -c -O{} {} {} -o {}_source.o {}", clangDir, config.standard, config.sourceFiles[i].generic_string(), pcmDir.generic_string(), config.optimizationLevel, march, flags, (config.buildDir/config.sourceFiles[i].filename()).generic_string(), target);
-                if(config.verbose) {
-                    std::cout << command << std::endl;
-                }
-                system(command.c_str());
-            });
-        //}
-    }
 
     for(std::uint_fast32_t i = 0; i < config.c_files.size(); i++) {
-        files+=std::format("{}_source.o ",(config.buildDir/config.c_files[i].filename()).generic_string());
+        files+=std::format("{}_source.o ",(buildDir/config.c_files[i].filename()).generic_string());
-        //if(!fs::exists((config.buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o") || fs::last_write_time(config.sourceFiles[i].generic_string()+".cpp") > fs::last_write_time((config.buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o")) {
+        if(!fs::exists((buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o") || fs::last_write_time(config.sourceFiles[i].generic_string()+".c") > fs::last_write_time((config.buildDir/config.sourceFiles[i].filename()).generic_string()+"_source.o")) {
-            threads.emplace_back([i, &config, pcmDir, target, clangDir, flags, march](){
+            threads.emplace_back([i, &config, pcmDir, target, clangDir, flags, march, &buildDir](){
-                system(std::format("clang {}.c -c -O{} {} {} -o {}_source.o {}", config.c_files[i].generic_string(), config.optimizationLevel, march, flags, (config.buildDir/config.c_files[i].filename()).generic_string(), target).c_str());
+                system(std::format("clang {}.c -c -O{} {} {} -o {}_source.o {}", config.c_files[i].generic_string(), config.optimizationLevel, march, flags, (buildDir/config.c_files[i].filename()).generic_string(), target).c_str());
             });
-        //}
+        }
     }
 
     for(std::thread& thread : threads){
@@ -237,7 +225,6 @@ void Project::Build(Configuration config, fs::path outputDir, fs::path binDir) c
     }
 
     if(config.type == "executable"){
-        //std::cout << std::format("{} {} {}-O{} -o {} {} {} -fuse-ld=lld", clangDir, flags, files, config.optimizationLevel, (outputDir/name).generic_string(), target, libs).c_str() << std::endl;
         if(config.target == "x86_64-w64-mingw64" || config.target == "x86_64-w64-mingw32") {
             flags += " -static-libgcc -static-libstdc++ -Wl,-Bstatic -lstdc++ -lpthread";
             name += ".exe";

Crafter.Build-Shader.cpp

@@ -36,6 +36,9 @@ Shader::Shader(fs::path path, std::string entrypoint, EShLanguage type): path(pa
 }
 
 void Shader::Compile(fs::path outputDir) {
+	if(!fs::exists((outputDir/path.filename()).replace_extension("spirv")) || fs::last_write_time(path) > fs::last_write_time((outputDir/path.filename()).replace_extension("spirv"))) {
+        return;
+    }
 	glslang::InitializeProcess();
     EShMessages messages = static_cast<EShMessages>(EShMsgDefault | EShMsgVulkanRules | EShMsgSpvRules);
     std::ifstream fileStream(path, std::ios::in | std::ios::binary);

Crafter.Build-SourceFile.cpp

@@ -0,0 +1,87 @@
+/*
+Crafter.Build
+Copyright (C) 2025 Catcrafts®
+Catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3.0 of the License, or (at your option) any later version.
+
+ This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+module;
+#include <string>
+#include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <regex>
+#include <print>
+#include <execution>
+module Crafter.Build;
+using namespace Crafter::Build;
+namespace fs = std::filesystem;
+
+void Source::GetSourceFiles(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, std::vector<std::thread>& threads, const std::vector<Module>& modules, std::string& files, const fs::path& buildDir) {
+    for(const fs::path& sourceFile : config.sourceFiles) {
+        files+=std::format("{}_source.o ",(buildDir/sourceFile.filename()).generic_string());
+        if(Source::Check(sourceFile, modules, config, buildDir)) {
+            threads.emplace_back([&config, sourceFile, pcmDir, target, clangDir, flags, march, buildDir](){
+                std::string command = std::format("{} -std={} {}.cpp -fprebuilt-module-path={} -c -O{} {} {} -o {}_source.o {}", clangDir, config.standard, sourceFile.generic_string(), pcmDir.generic_string(), config.optimizationLevel, march, flags, (buildDir/sourceFile.filename()).generic_string(), target);
+                if(config.verbose) {
+                    std::cout << command << std::endl;
+                }
+                system(command.c_str());
+            });
+        }
+    }
+}
+
+bool Source::Check(const fs::path& path, const std::vector<Module>& modules, const Configuration& config, const fs::path& buildDir) {
+    if(!fs::exists((buildDir/path.filename()).generic_string()+"_source.o") || fs::last_write_time((path).generic_string()+".cpp") > fs::last_write_time((buildDir/path.filename()).generic_string()+"_source.o")) {
+        return true;
+    }
+    std::ifstream t(path.generic_string()+".cpp");
+    std::stringstream buffer;
+    buffer << t.rdbuf();
+    std::string fileContent = buffer.str();
+    {
+        std::regex pattern(R"(module ([a-zA-Z_\-0-9\.]*);)");
+        std::sregex_iterator currentMatch(fileContent.begin(), fileContent.end(), pattern);
+        std::sregex_iterator lastMatch;
+    
+        while (currentMatch != lastMatch) {
+            std::smatch match = *currentMatch;
+            for(const Module& module : modules) {
+                if(module.name == match[1] && module.needsRecompiling) {
+                    return true;
+                }
+            }
+            ++currentMatch;
+        }
+    }
+    {
+        std::regex pattern(R"(import ([a-zA-Z_\-0-9\.]*);)");
+        std::sregex_iterator currentMatch(fileContent.begin(), fileContent.end(), pattern);
+        std::sregex_iterator lastMatch;
+    
+        while (currentMatch != lastMatch) {
+            std::smatch match = *currentMatch;
+            for(const Module& module : modules) {
+                if(module.name == match[1] && module.needsRecompiling) {
+                    return true;
+                }
+            }
+            ++currentMatch;
+        }
+    }
+    return false;
+}

Crafter.Build-SourceFile.cppm

@@ -0,0 +1,42 @@
+/*
+Crafter.Build
+Copyright (C) 2025 Catcrafts®
+Catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3.0 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+module;
+#include <string>
+#include <filesystem>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+#include <atomic>
+#include <thread>
+#include <condition_variable>                                                                                                                                                                                                                                                             
+export module Crafter.Build:SourceFile;
+import :Configuration;
+import :ModuleFile;
+namespace fs = std::filesystem;
+
+namespace Crafter::Build {
+    class Source {
+        public:
+        static void GetSourceFiles(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target, const std::string& march, const std::string& flags, std::vector<std::thread>& threads, const std::vector<Module>& modules, std::string& files, const fs::path& buildDir);
+        private:
+        static bool Check(const fs::path& path, const std::vector<Module>& modules, const Configuration& config, const fs::path& buildDir);
+    };
+}

Crafter.Build.cppm

@@ -23,4 +23,5 @@ export import :Dependency;
 export import :Project;
 export import :Configuration;
 export import :ModuleFile;
+export import :SourceFile;
 export import :Shader;

build.sh

@@ -5,12 +5,14 @@ clang++ -std=c++26 Crafter.Build-Shader.cppm --precompile -fprebuilt-module-path
 clang++ -std=c++26 Crafter.Build-Dependency.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build-Dependency.pcm
 clang++ -std=c++26 Crafter.Build-Configuration.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build-Configuration.pcm
 clang++ -std=c++26 Crafter.Build-ModuleFile.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build-ModuleFile.pcm
+clang++ -std=c++26 Crafter.Build-SourceFile.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build-SourceFile.pcm
 clang++ -std=c++26 Crafter.Build-Project.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build-Project.pcm
 clang++ -std=c++26 Crafter.Build.cppm --precompile -fprebuilt-module-path=./build -o ./build/Crafter.Build.pcm
 
 clang++ -std=c++26 Crafter.Build-Dependency.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Dependency_source.o
 clang++ -std=c++26 Crafter.Build-Configuration.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Configuration_source.o
 clang++ -std=c++26 Crafter.Build-ModuleFile.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-ModuleFile_source.o
+clang++ -std=c++26 Crafter.Build-SourceFile.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-SourceFile_source.o
 clang++ -std=c++26 Crafter.Build-Shader.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Shader_source.o
 clang++ -std=c++26 Crafter.Build-Project.cpp -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Project_source.o
 clang++ -std=c++26 main.cpp -fprebuilt-module-path=./build -c -o ./build/main.o
@@ -18,9 +20,10 @@ clang++ -std=c++26 main.cpp -fprebuilt-module-path=./build -c -o ./build/main.o
 clang++ -std=c++26 ./build/Crafter.Build-Project.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Project.o
 clang++ -std=c++26 ./build/Crafter.Build-Configuration.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Configuration.o
 clang++ -std=c++26 ./build/Crafter.Build-ModuleFile.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-ModuleFile.o
+clang++ -std=c++26 ./build/Crafter.Build-SourceFile.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-SourceFile.o
 clang++ -std=c++26 ./build/Crafter.Build-Shader.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Shader.o
 clang++ -std=c++26 ./build/Crafter.Build-Dependency.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build-Dependency.o
 clang++ -std=c++26 ./build/Crafter.Build.pcm -fprebuilt-module-path=./build -c -O3 -o ./build/Crafter.Build.o
-clang++ ./build/main.o ./build/Crafter.Build-ModuleFile_source.o ./build/Crafter.Build-ModuleFile.o ./build/Crafter.Build-Shader_source.o ./build/Crafter.Build-Shader.o ./build/Crafter.Build.o ./build/Crafter.Build-Configuration.o ./build/Crafter.Build-Configuration_source.o ./build/Crafter.Build-Project.o ./build/Crafter.Build-Project_source.o ./build/Crafter.Build-Dependency.o ./build/Crafter.Build-Dependency_source.o -O3 -o ./bin/crafter-build    -L/usr/local/lib -L/usr/lib/ -lvulkan -lMachineIndependent -lOSDependent -lGenericCodeGen -lglslang -lglslang-default-resource-limits -lSPIRV -lSPVRemapper -fuse-ld=lld
+clang++ ./build/main.o ./build/Crafter.Build-ModuleFile_source.o ./build/Crafter.Build-ModuleFile.o ./build/Crafter.Build-SourceFile_source.o ./build/Crafter.Build-SourceFile.o ./build/Crafter.Build-Shader_source.o ./build/Crafter.Build-Shader.o ./build/Crafter.Build.o ./build/Crafter.Build-Configuration.o ./build/Crafter.Build-Configuration_source.o ./build/Crafter.Build-Project.o ./build/Crafter.Build-Project_source.o ./build/Crafter.Build-Dependency.o ./build/Crafter.Build-Dependency_source.o -O3 -o ./bin/crafter-build    -L/usr/local/lib -L/usr/lib/ -lvulkan -lMachineIndependent -lOSDependent -lGenericCodeGen -lglslang -lglslang-default-resource-limits -lSPIRV -lSPVRemapper -ltbb -fuse-ld=lld
 
 rm -rf build

project.json

@@ -4,12 +4,11 @@
         {
             "name": "base",
             "standard": "c++26",
-            "source_files": ["Crafter.Build-Configuration", "Crafter.Build-Project", "Crafter.Build-Dependency", "Crafter.Build-ModuleFile", "Crafter.Build-Shader"],
+            "source_files": ["Crafter.Build-Configuration", "Crafter.Build-Project", "Crafter.Build-Dependency", "Crafter.Build-ModuleFile", "Crafter.Build-Shader", "Crafter.Build-SourceFile"],
-            "module_files": ["Crafter.Build-Dependency", "Crafter.Build-Configuration", "Crafter.Build-Project", "Crafter.Build-Shader", "Crafter.Build", "Crafter.Build-ModuleFile"],
+            "module_files": ["Crafter.Build-Dependency", "Crafter.Build-Configuration", "Crafter.Build-Project", "Crafter.Build-Shader", "Crafter.Build", "Crafter.Build-ModuleFile", "Crafter.Build-SourceFile"],
-            "build_dir": "./build",
+            "build_dir": "build",
-            "output_dir": "./bin",
+            "output_dir": "bin",
-            "libs": ["vulkan", "MachineIndependent", "OSDependent", "GenericCodeGen", "glslang", "glslang-default-resource-limits", "SPIRV", "SPVRemapper"],
+            "libs": ["vulkan", "MachineIndependent", "OSDependent", "GenericCodeGen", "glslang", "glslang-default-resource-limits", "SPIRV", "SPVRemapper", "tbb"]
-            "verbose": true
         },
         {
             "name": "executable",