made pip install a tool

src/tasks/pyqt.cpp

@@ -36,13 +36,9 @@ void pyqt::do_build_and_install()
 		"_QOpenGLFunctions_4_1_Core"
 	};
 
-	run_tool(process_runner(process()
-		.binary(python::python_exe())
-		.arg("-m", "pip")
-		.arg("install")
-		.arg("--no-warn-script-location")
-		.arg("--disable-pip-version-check")
-		.arg("PyQt-builder==" + versions::pyqt_builder())));
+	run_tool(pip_install()
+		.package("PyQt-builder")
+		.version(versions::pyqt_builder()));
 
 	run_tool(patcher()
 		.task(name())
@@ -100,14 +96,8 @@ void pyqt::do_build_and_install()
 	}
 	else
 	{
-		run_tool(process_runner(process()
-			.binary(python::python_exe())
-			.arg("-m", "pip")
-			.arg("install")
-			.arg("--no-warn-script-location")
-			.arg("--disable-pip-version-check")
-			.arg(paths::cache() / sip_install_file())
-			.cwd(python::source_path())));
+		run_tool(pip_install()
+			.file(paths::cache() / sip_install_file()));
 
 		op::touch(source_path() / "_mob_installed");
 	}

src/tools.cpp

@@ -3,6 +3,7 @@
 #include "utility.h"
 #include "op.h"
 #include "conf.h"
+#include "tasks/tasks.h"
 
 namespace builder
 {
@@ -865,4 +866,45 @@ void nuget::do_run()
 	execute_and_join();
 }
 
+
+pip_install::pip_install()
+	: basic_process_runner("pip install")
+{
+}
+
+pip_install& pip_install::package(const std::string& s)
+{
+	package_ = s;
+	return *this;
+}
+
+pip_install& pip_install::version(const std::string& s)
+{
+	version_ = s;
+	return *this;
+}
+
+pip_install& pip_install::file(const fs::path& p)
+{
+	file_ = p;
+	return *this;
+}
+
+void pip_install::do_run()
+{
+	process_
+		.binary(python::python_exe())
+		.arg("-m", "pip")
+		.arg("install")
+		.arg("--no-warn-script-location")
+		.arg("--disable-pip-version-check");
+
+	if (!package_.empty())
+		process_.arg(package_ + "==" + version_);
+	else if (!file_.empty())
+		process_.arg(file_);
+
+	execute_and_join();
+}
+
 }	// namespace

src/tools.h

@@ -274,4 +274,23 @@ private:
 	fs::path sln_;
 };
 
+
+class pip_install : public basic_process_runner
+{
+public:
+	pip_install();
+
+	pip_install& package(const std::string& s);
+	pip_install& version(const std::string& s);
+	pip_install& file(const fs::path& p);
+
+protected:
+	void do_run() override;
+
+private:
+	std::string package_;
+	std::string version_;
+	fs::path file_;
+};
+
 }	// namespace