task split

src/tasks/python.cpp

@@ -0,0 +1,145 @@
+#include "pch.h"
+#include "tasks.h"
+
+namespace builder
+{
+
+python::python()
+	: basic_task("python")
+{
+}
+
+python::version_info python::version()
+{
+	// 3.8.1
+	// .1 is optional
+	std::regex re(R"((\d+)\.(\d+)(?:\.(\d+))?)");
+	std::smatch m;
+
+	if (!std::regex_match(versions::python(), m, re))
+		bail_out("bad python version '" + versions::python() + "'");
+
+	version_info v;
+
+	v.major = m[1];
+	v.minor = m[2];
+
+	if (m.size() > 3)
+		v.patch = m[3];
+
+	return v;
+}
+
+fs::path python::source_path()
+{
+	return paths::build() / ("python-" + versions::python());
+}
+
+void python::do_fetch()
+{
+	run_tool(git_clone()
+		.org("python")
+		.repo("cpython")
+		.branch("v" + versions::python())
+		.output(source_path()));
+
+	if (fs::exists(source_path() / "PCBuild" / "UpgradeLog.htm"))
+		debug("project already upgraded");
+	else
+		upgrade_project();
+}
+
+void python::do_build_and_install()
+{
+	run_tool(msbuild()
+		.solution(solution_file())
+		.projects({
+			"python", "pythonw", "python3dll", "select", "pyexpat",
+			"unicodedata", "_queue", "_bz2", "_ssl"})
+			.parameters({
+			"bz2Dir=" + bzip2::source_path().string(),
+			"zlibDir=" + zlib::source_path().string(),
+			"opensslIncludeDir=" + openssl::include_path().string(),
+			"opensslOutDir=" + openssl::source_path().string(),
+			"libffiIncludeDir=" + libffi::include_path().string(),
+			"libffiOutDir=" + libffi::lib_path().string()}));
+
+	if (fs::exists(build_path() / "_mob_packaged"))
+	{
+		debug("python already packaged");
+	}
+	else
+	{
+		const auto bat = source_path() / "python.bat";
+
+		run_tool(process_runner(bat, cmd::stdout_is_verbose)
+			.name("package python")
+			.arg(fs::path("PC/layout"))
+			.arg("--source", source_path())
+			.arg("--build", build_path())
+			.arg("--temp", (build_path() / "pythoncore_temp"))
+			.arg("--copy", (build_path() / "pythoncore"))
+			.arg("--preset-embed")
+			.cwd(source_path()));
+
+		op::touch(build_path() / "_mob_packaged");
+	}
+
+	op::copy_file_to_dir_if_better(
+		source_path() / "PC" / "pyconfig.h",
+		include_path());
+
+	op::copy_file_to_dir_if_better(
+		build_path() / "*.lib",
+		paths::install_libs());
+
+	op::copy_file_to_dir_if_better(
+		build_path() / "libffi*.dll",
+		paths::install_bin());
+
+	op::copy_file_to_dir_if_better(
+		build_path() / ("python" + version_for_dll() + ".dll"),
+		paths::install_bin());
+
+	op::copy_file_to_dir_if_better(
+		build_path() / ("python" + version_for_dll() + ".pdb"),
+		paths::install_pdbs());
+}
+
+void python::upgrade_project()
+{
+	run_tool(process_runner(third_party::devenv(), cmd::stdout_is_verbose)
+		.name("upgrade project")
+		.arg(solution_file())
+		.arg("/upgrade"));
+}
+
+fs::path python::build_path()
+{
+	return source_path() / "PCBuild" / "amd64";
+}
+
+fs::path python::python_exe()
+{
+	return build_path() / "python.exe";
+}
+
+fs::path python::include_path()
+{
+	return source_path() / "Include";
+}
+
+fs::path python::solution_file()
+{
+	return source_path() / "PCBuild" / "pcbuild.sln";
+}
+
+std::string python::version_for_dll()
+{
+	const auto v = version();
+
+	// 38
+	return v.major + v.minor;
+}
+
+}	// namespace builder