Split libcppbuild.cc into multiple files/modules.

1 files changed, 123 insertions, 0 deletions

diff --git a/tasks.cc b/tasks.cc
new file mode 100644
index 0000000..641e05b
--- /dev/null
+++ b/tasks.cc
@@ -0,0 +1,123 @@
+#include "tasks.h"
+
+#include <filesystem>
+#include <deque>
+#include <iostream>
+
+#include "settings.h"
+#include "libcppbuild.h"
+#include "task.h"
+#include "task_cc.h"
+#include "task_ld.h"
+#include "task_ar.h"
+#include "task_so.h"
+#include "rebuild.h"
+
+std::list<std::shared_ptr<Task>> taskFactory(const BuildConfiguration& config,
+                                             const Settings& settings,
+                                             const std::string& sourceDir)
+{
+	std::filesystem::path targetFile(config.target);
+
+	TargetType target_type{config.type};
+	if(target_type == TargetType::Auto)
+	{
+		if(targetFile.extension() == ".a")
+		{
+			target_type = TargetType::StaticLibrary;
+		}
+		else if(targetFile.extension() == ".so")
+		{
+			target_type = TargetType::DynamicLibrary;
+		}
+		else if(targetFile.extension() == "")
+		{
+			target_type = TargetType::Executable;
+		}
+		else
+		{
+			std::cerr << "Could not deduce target type from target " <<
+				targetFile.string() << " please specify.\n";
+			exit(1);
+		}
+	}
+
+	std::vector<std::string> objects;
+	std::list<std::shared_ptr<Task>> tasks;
+	for(const auto& file : config.sources)
+	{
+		tasks.emplace_back(std::make_shared<TaskCC>(config, settings,
+		                                            sourceDir, file));
+		objects.push_back(tasks.back()->target());
+	}
+
+	switch(target_type)
+	{
+	case TargetType::StaticLibrary:
+		tasks.emplace_back(std::make_shared<TaskAR>(config, settings, config.target,
+		                                            objects));
+		break;
+
+	case TargetType::DynamicLibrary:
+		if(targetFile.stem().string().substr(0, 3) != "lib")
+		{
+			std::cerr << "Dynamic library target must have 'lib' prefix\n";
+			exit(1);
+		}
+		tasks.emplace_back(std::make_shared<TaskSO>(config, settings, config.target,
+		                                            objects));
+		break;
+
+	case TargetType::Executable:
+		tasks.emplace_back(std::make_shared<TaskLD>(config, settings, config.target,
+		                                            objects));
+		break;
+	}
+
+	return tasks;
+}
+
+std::shared_ptr<Task> getNextTask(const std::list<std::shared_ptr<Task>>& allTasks,
+                                  std::list<std::shared_ptr<Task>>& dirtyTasks)
+{
+	for(auto dirtyTask = dirtyTasks.begin();
+	    dirtyTask != dirtyTasks.end();
+	    ++dirtyTask)
+	{
+		//std::cout << "Examining target " << (*dirtyTask)->target() << "\n";
+		if((*dirtyTask)->ready())
+		{
+			dirtyTasks.erase(dirtyTask);
+			return *dirtyTask;
+		}
+	}
+
+	//std::cout << "No task ready ... \n";
+	return nullptr;
+}
+
+std::list<std::shared_ptr<Task>> getTasks(const Settings& settings)
+{
+	static std::deque<BuildConfiguration> build_configs;
+	std::list<std::shared_ptr<Task>> tasks;
+	for(std::size_t i = 0; i < numConfigFiles; ++i)
+	{
+		std::string path =
+			std::filesystem::path(configFiles[i].file).parent_path();
+		if(settings.verbose > 1)
+		{
+			std::cout << configFiles[i].file << " in path " << path << "\n";
+		}
+		auto configs = configFiles[i].cb();
+		for(const auto& config : configs)
+		{
+			build_configs.push_back(config);
+			const auto& build_config = build_configs.back();
+			std::vector<std::string> objects;
+			auto t = taskFactory(build_config, settings, path);
+			tasks.insert(tasks.end(), t.begin(), t.end());
+		}
+	}
+
+	return tasks;
+}