From 19195e2bbdcd7a0db8f84732ce54b1c9d07c006c Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sun, 13 Jun 2021 18:24:16 +0200
Subject: Make task an abstract class and make CC and LD versions of it.

---
 task.cc | 263 ----------------------------------------------------------------
 1 file changed, 263 deletions(-)

(limited to 'task.cc')

diff --git a/task.cc b/task.cc
index 030932e..e69de29 100644
--- a/task.cc
+++ b/task.cc
@@ -1,263 +0,0 @@
-#include "task.h"
-
-#include <iostream>
-#include <fstream>
-#include <unistd.h>
-#include <cstring>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <spawn.h>
-
-#include "libcppbuild.h"
-#include "settings.h"
-
-namespace
-{
-std::string readFile(const std::string &fileName)
-{
-	std::ifstream ifs(fileName.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
-
-	std::ifstream::pos_type fileSize = ifs.tellg();
-	ifs.seekg(0, std::ios::beg);
-
-	std::vector<char> bytes(fileSize);
-	ifs.read(bytes.data(), fileSize);
-
-	return std::string(bytes.data(), fileSize);
-}
-
-std::vector<std::string> readDeps(const std::string& depFile)
-{
-	if(!std::filesystem::exists(depFile))
-	{
-		return {};
-	}
-
-	auto str = readFile(depFile);
-
-	std::vector<std::string> output;
-	std::string tmp;
-	bool start{false};
-	bool in_whitespace{false};
-	for(const auto& c : str)
-	{
-		if(c == '\\' || c == '\n')
-		{
-			continue;
-		}
-
-		if(c == ':')
-		{
-			start = true;
-			continue;
-		}
-
-		if(!start)
-		{
-			continue;
-		}
-
-		if(c == ' ' || c == '\t')
-		{
-			if(in_whitespace)
-			{
-				continue;
-			}
-
-			if(!tmp.empty())
-			{
-				output.push_back(tmp);
-			}
-			tmp.clear();
-			in_whitespace = true;
-		}
-		else
-		{
-			in_whitespace = false;
-			tmp += c;
-		}
-	}
-
-	if(!tmp.empty())
-	{
-		output.push_back(tmp);
-	}
-
-	return output;
-}
-} // namespace ::
-
-Task::Task(const BuildConfiguration& config, const Settings& settings,
-           const std::string& source)
-	: config(config)
-	, settings(settings)
-{
-	sourceFile = source;
-	targetFile = settings.builddir / sourceFile.stem();
-	targetFile += ".o";
-	depsFile = settings.builddir / sourceFile.stem();
-	depsFile += ".d";
-}
-
-bool Task::dirty()
-{
-	if(!std::filesystem::exists(sourceFile))
-	{
-		//std::cout << "Missing source file: " << std::string(sourceFile) << "\n";
-		return true;
-	}
-
-	if(!std::filesystem::exists(targetFile))
-	{
-		//std::cout << "Missing targetFile\n";
-		return true;
-	}
-
-	if(!std::filesystem::exists(depsFile))
-	{
-		//std::cout << "Missing depsFile\n";
-		return true;
-	}
-
-	if(std::filesystem::last_write_time(sourceFile) >
-	   std::filesystem::last_write_time(depsFile))
-	{
-		//std::cout << "The sourceFile newer than depsFile\n";
-		return true;
-	}
-
-	auto depList = readDeps(depsFile);
-	for(const auto& dep : depList)
-	{
-		if(!std::filesystem::exists(dep) ||
-		   std::filesystem::last_write_time(targetFile) <
-		   std::filesystem::last_write_time(dep))
-		{
-			//std::cout << "The targetFile older than " << std::string(dep) << "\n";
-			return true;
-		}
-	}
-
-	if(std::filesystem::last_write_time(sourceFile) >
-	   std::filesystem::last_write_time(targetFile))
-	{
-		//std::cout << "The targetFile older than sourceFile\n";
-		return true;
-	}
-
-	return false;
-}
-
-int parent_waitpid(pid_t pid)
-{
-	int status;
-
-	if(waitpid(pid, &status, 0) != pid)
-	{
-		return 1;
-	}
-
-	return status;
-}
-int Task::run()
-{
-	if(!std::filesystem::exists(sourceFile))
-	{
-		std::cout << "Missing source file: " << std::string(sourceFile) << "\n";
-		return 1;
-	}
-
-	std::string comp = "/usr/bin/g++";
-	auto flags = config.cxxflags;
-	if(std::string(sourceFile.extension()) == ".c")
-	{
-		comp = "/usr/bin/gcc";
-		flags = config.cflags;
-	}
-
-	char source[256];
-	strcpy(source, std::string(sourceFile).data());
-	char target[256];
-	strcpy(target, std::string(targetFile).data());
-	char pwd[256];
-	strcpy(pwd, std::string(std::filesystem::current_path()).data());
-	std::vector<const char*> argv;
-	//args.push_back("/bin/echo");
-	if(comp == "/usr/bin/gcc")
-	{
-		argv.push_back("/usr/bin/gcc");
-	}
-	else
-	{
-		argv.push_back("/usr/bin/g++");
-	}
-
-	argv.push_back("-MMD");
-	argv.push_back("-c");
-	argv.push_back(source);
-	argv.push_back("-o");
-	argv.push_back(target);
-
-	for(const auto& flag : flags)
-	{
-		argv.push_back(flag.data());
-	}
-
-	std::string cmd;
-	for(const auto& arg : argv)
-	{
-		if(arg == nullptr)
-		{
-			break;
-		}
-		if(!cmd.empty())
-		{
-			cmd += " ";
-		}
-		cmd += arg;
-	}
-	std::cout << cmd << "\n";
-
-#if 0
-	auto pid = vfork();
-	if(pid == 0)
-	{
-		execv(comp.data(), (char**)argv.data());
-	}
-#else
-	pid_t pid;
-	if(posix_spawn(&pid, comp.data(), nullptr, nullptr, (char**)argv.data(), nullptr))
-	{
-		return 1;//exit(1);
-	}
-#endif
-
-	return parent_waitpid(pid);
-}
-
-int Task::clean()
-{
-	if(std::filesystem::exists(targetFile))
-	{
-		std::cout << "Removing " << std::string(targetFile) << "\n";
-		std::filesystem::remove(targetFile);
-	}
-
-	if(std::filesystem::exists(depsFile))
-	{
-		std::cout << "Removing " << std::string(depsFile) << "\n";
-		std::filesystem::remove(depsFile);
-	}
-
-	return 0;
-}
-
-std::vector<std::string> Task::depends() const
-{
-	return {};
-}
-
-std::string Task::target() const
-{
-	return targetFile;
-}
-- 
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