renamed pip_install tool to just pip, move all the pip stuff to it

filter out annoying ensurepip messages

src/tasks/pyqt.cpp

@@ -132,7 +132,7 @@ void pyqt::build_and_install_from_source()
 {
 	instrument<times::build>([&]
 	{
-		run_tool(pip_install()
+		run_tool(pip(pip::install)
 			.package("PyQt-builder")
 			.version(builder_version()));
 
@@ -211,7 +211,7 @@ void pyqt::install_sip_file()
 	}
 	else
 	{
-		run_tool(pip_install()
+		run_tool(pip(pip::install)
 			.file(paths::cache() / sip_install_file()));
 
 		installed_bypass.create();

src/tasks/python.cpp

@@ -235,25 +235,7 @@ void python::copy_files()
 void python::install_pip()
 {
 	cx().trace(context::generic, "installing pip");
-
-	run_tool(process_runner(process()
-		.binary(python_exe())
-		.arg("-m", "ensurepip")));
-
-	run_tool(process_runner(process()
-		.binary(python_exe())
-		.arg("-m pip")
-		.arg("install")
-		.arg("--no-warn-script-location")
-		.arg("--upgrade pip")));
-
-	// ssl errors while downloading through python without certifi
-	run_tool(process_runner(process()
-		.binary(python_exe())
-		.arg("-m pip")
-		.arg("install")
-		.arg("--no-warn-script-location")
-		.arg("certifi")));
+	run_tool(pip(pip::ensure));
 }
 
 msbuild python::create_msbuild_tool(msbuild::ops o)

src/tools/tools.cpp

@@ -230,30 +230,94 @@ void nuget::do_run()
 }
 
 
-pip_install::pip_install()
-	: basic_process_runner("pip install")
+pip::pip(ops op)
+	: basic_process_runner("pip"), op_(op)
 {
 }
 
-pip_install& pip_install::package(const std::string& s)
+pip& pip::package(const std::string& s)
 {
 	package_ = s;
 	return *this;
 }
 
-pip_install& pip_install::version(const std::string& s)
+pip& pip::version(const std::string& s)
 {
 	version_ = s;
 	return *this;
 }
 
-pip_install& pip_install::file(const fs::path& p)
+pip& pip::file(const fs::path& p)
 {
 	file_ = p;
 	return *this;
 }
 
-void pip_install::do_run()
+void pip::do_run()
+{
+	switch (op_)
+	{
+		case ensure:
+			do_ensure();
+			break;
+
+		case install:
+			do_install();
+			break;
+
+		default:
+			cx().bail_out(context::generic, "pip unknown op {}", op_);
+	}
+}
+
+void pip::do_ensure()
+{
+	// ensure
+	//
+	// this spits out two warnings about not being on PATH and suggests to add
+	// --no-warn-script-location, but that's not actually a valid command
+	// line parameter for `ensurepip` and it fails, unlike the `install`
+	// commands below
+	//
+	// so just filter it out
+
+	set_process(process()
+		.stderr_filter([](auto&& f)
+		{
+			if (f.line.find("which is not on PATH") != -1)
+				f.lv = context::level::debug;
+			else if (f.line.find("Consider adding this directory"))
+				f.lv = context::level::debug;
+		})
+		.binary(python::python_exe())
+		.arg("-m", "ensurepip"));
+
+	execute_and_join();
+
+
+	// upgrade
+	set_process(process()
+		.binary(python::python_exe())
+		.arg("-m pip")
+		.arg("install")
+		.arg("--no-warn-script-location")
+		.arg("--upgrade pip"));
+
+	execute_and_join();
+
+
+	// ssl errors while downloading through python without certifi
+	set_process(process()
+		.binary(python::python_exe())
+		.arg("-m pip")
+		.arg("install")
+		.arg("--no-warn-script-location")
+		.arg("certifi"));
+
+	execute_and_join();
+}
+
+void pip::do_install()
 {
 	auto p = process()
 		.binary(python::python_exe())

src/tools/tools.h

@@ -590,22 +590,32 @@ private:
 };
 
 
-class pip_install : public basic_process_runner
+class pip : public basic_process_runner
 {
 public:
-	pip_install();
+	enum ops
+	{
+		ensure = 1,
+		install
+	};
 
-	pip_install& package(const std::string& s);
-	pip_install& version(const std::string& s);
-	pip_install& file(const fs::path& p);
+	pip(ops o);
+
+	pip& package(const std::string& s);
+	pip& version(const std::string& s);
+	pip& file(const fs::path& p);
 
 protected:
 	void do_run() override;
 
 private:
+	ops op_;
 	std::string package_;
 	std::string version_;
 	fs::path file_;
+
+	void do_ensure();
+	void do_install();
 };