Package.cpp

#include <iostream>

#include "Package.h"

using namespace std;

Package::Package(string PackageOrigin, unordered_map<string,Package> &Scope)
{
	FILE *Pipe;
	char Buffer[128];

	string GetFlavorCmd =	(string) "pkg info " +
							(string) PackageOrigin +
							(string) "| grep 'flavor         :' | cut -f 4 -w";

	string GetAutomaticStateCmd =	(string) "pkg query -e '%o=" +
									(string) PackageOrigin +
									(string) "' %a";

	string GetDependencies;

	Origin = PackageOrigin;

	cout << "    Computing flavor of package...";
	Pipe = popen(GetFlavorCmd.c_str(),"r");
	if(!Pipe)
	{
		cerr << "Error while retrieving flavor of package " + Origin + "." << endl;
		exit(1);
	}
	Buffer[1] = 0;
	fgets(Buffer,128,Pipe);
	pclose(Pipe);
	Buffer[strlen(Buffer) - 1] = 0;
	Flavor = string(Buffer);
	cout << Flavor + "." << endl;

	cout << "    Computing automatic state of package...";
	Pipe = popen(GetAutomaticStateCmd.c_str(),"r");
	if(!Pipe)
	{
		cerr << "Error while retrieving automatic state of package " + Origin + "." << endl;
		exit(1);
	}
	fgets(Buffer,2,Pipe);
	pclose(Pipe);
	Automatic = (bool) (Buffer[0] - '0');
	if(Automatic) cout << "true." << endl;
	else cout << "false." << endl;

	cout << "    Computing dependencies..." << endl;
	GetDependencies =	(string) "pkg query -e \"\%o=" +
						(string) Origin +
						(string) "\" \%do";
	Pipe = popen(GetDependencies.c_str(),"r");
	if(!Pipe)
	{
		cerr << "Error while retrieving dependencies." << endl;
		exit(1);
	}
	while(fgets(Buffer,128,Pipe))
	{
		Buffer[strlen(Buffer) - 1] = 0;
		try
		{
			Dependencies.push_back(&(Scope.at(Buffer)));
			cout << "      " << Buffer << " is outdated." << endl;
		}
		catch(...)
		{
		};
	}
	pclose(Pipe);
}

void Package::SimulateUpdate(unsigned int RecursionDegree)
{
	for(auto PkgPtr: Dependencies) PkgPtr->SimulateUpdate(RecursionDegree + 1);
	if(Outdated)
	{
		string ToBeUpdated =	string(RecursionDegree, ' ') +
								(string) Origin +
								"\n";
		cout << ToBeUpdated;
		Outdated = false;
	}
}

void Package::Update()
{
	for(auto PkgPtr: Dependencies) PkgPtr->Update();
	if(Outdated)
	{
		string UpdateCommand =	(string) "cd " +
								(string) PORTSDIR +
								(string) "/" +
								(string) Origin +
								(string) " && make build deinstall install clean";
		if(!Flavor.empty())
		{
			UpdateCommand +=  " FLAVOR=" +
			(string) Flavor;
		}
		if(Automatic)
		{
			UpdateCommand += " INSTALLS_DEPENDS=-A";
		}
		Outdated = false;
		if(system(UpdateCommand.c_str()))
		{
			cerr << "Error while updating port " << Origin << "." << endl;
			exit(2);
		}
	}
}