[apt.git] / apt-pkg / install-progress.cc

#include <config.h>

#include <apt-pkg/configuration.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/install-progress.h>

#include <signal.h>
#include <unistd.h>
#include <iostream>
#include <vector>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <algorithm>
#include <stdio.h>
#include <sstream>
#include <cmath>

#include <apti18n.h>

namespace APT {
namespace Progress {

PackageManager::PackageManager() : d(NULL), percentage(0.0), last_reported_progress(-1) {}
PackageManager::~PackageManager() {}

/* Return a APT::Progress::PackageManager based on the global
 * apt configuration (i.e. APT::Status-Fd and APT::Status-deb822-Fd)
 */
PackageManager* PackageManagerProgressFactory()
{
   // select the right progress
   int status_fd = _config->FindI("APT::Status-Fd", -1);
   int status_deb822_fd = _config->FindI("APT::Status-deb822-Fd", -1);

   APT::Progress::PackageManager *progress = NULL;
   if (status_deb822_fd > 0)
      progress = new APT::Progress::PackageManagerProgressDeb822Fd(
         status_deb822_fd);
   else if (status_fd > 0)
      progress = new APT::Progress::PackageManagerProgressFd(status_fd);
   else if(_config->FindB("Dpkg::Progress-Fancy", false) == true)
      progress = new APT::Progress::PackageManagerFancy();
   else if (_config->FindB("Dpkg::Progress", 
                           _config->FindB("DpkgPM::Progress", false)) == true)
      progress = new APT::Progress::PackageManagerText();
   else
      progress = new APT::Progress::PackageManager();
   return progress;
}

bool PackageManager::StatusChanged(std::string /*PackageName*/,
                                   unsigned int StepsDone,
                                   unsigned int TotalSteps,
                                   std::string /*HumanReadableAction*/)
{
   int reporting_steps = _config->FindI("DpkgPM::Reporting-Steps", 1);
   percentage = StepsDone/(float)TotalSteps * 100.0;
   strprintf(progress_str, _("Progress: [%3i%%]"), (int)percentage);

   if(percentage < (last_reported_progress + reporting_steps))
      return false;

   return true;
}

PackageManagerProgressFd::PackageManagerProgressFd(int progress_fd)
   : d(NULL), StepsDone(0), StepsTotal(1)
{
   OutStatusFd = progress_fd;
}
PackageManagerProgressFd::~PackageManagerProgressFd() {}

void PackageManagerProgressFd::WriteToStatusFd(std::string s)
{
   if(OutStatusFd <= 0)
      return;
   FileFd::Write(OutStatusFd, s.c_str(), s.size());   
}

static std::string GetProgressFdString(char const * const status,
      char const * const pkg, unsigned long long Done,
      unsigned long long Total, char const * const msg)
{
   float const progress{Done / static_cast<float>(Total) * 100};
   std::ostringstream str;
   str.imbue(std::locale("C.UTF-8"));
   str.precision(4);
   str << status << ':' << pkg << ':' << std::fixed << progress << ':' << msg << '\n';
   return str.str();
}

void PackageManagerProgressFd::StartDpkg()
{
   if(OutStatusFd <= 0)
      return;

   // FIXME: use SetCloseExec here once it taught about throwing
   //        exceptions instead of doing _exit(100) on failure
   fcntl(OutStatusFd,F_SETFD,FD_CLOEXEC); 

   // send status information that we are about to fork dpkg
   WriteToStatusFd(GetProgressFdString("pmstatus", "dpkg-exec", StepsDone, StepsTotal, _("Running dpkg")));
}

APT_CONST void PackageManagerProgressFd::Stop()
{
}

void PackageManagerProgressFd::Error(std::string PackageName,
                                     unsigned int StepsDone,
                                     unsigned int TotalSteps,
                                     std::string ErrorMessage)
{
   WriteToStatusFd(GetProgressFdString("pmerror", PackageName.c_str(),
	    StepsDone, TotalSteps, ErrorMessage.c_str()));
}

void PackageManagerProgressFd::ConffilePrompt(std::string PackageName,
                                              unsigned int StepsDone,
                                              unsigned int TotalSteps,
                                              std::string ConfMessage)
{
   WriteToStatusFd(GetProgressFdString("pmconffile", PackageName.c_str(),
	    StepsDone, TotalSteps, ConfMessage.c_str()));
}


bool PackageManagerProgressFd::StatusChanged(std::string PackageName, 
                                             unsigned int xStepsDone,
                                             unsigned int xTotalSteps,
                                             std::string pkg_action)
{
   StepsDone = xStepsDone;
   StepsTotal = xTotalSteps;

   WriteToStatusFd(GetProgressFdString("pmstatus", StringSplit(PackageName, ":")[0].c_str(),
	    StepsDone, StepsTotal, pkg_action.c_str()));

   if(_config->FindB("Debug::APT::Progress::PackageManagerFd", false) == true)
      std::cerr << "progress: " << PackageName << " " << xStepsDone
                << " " << xTotalSteps << " " << pkg_action
                << std::endl;


   return true;
}


PackageManagerProgressDeb822Fd::PackageManagerProgressDeb822Fd(int progress_fd)
   : d(NULL), StepsDone(0), StepsTotal(1)
{
   OutStatusFd = progress_fd;
}
PackageManagerProgressDeb822Fd::~PackageManagerProgressDeb822Fd() {}

void PackageManagerProgressDeb822Fd::WriteToStatusFd(std::string s)
{
   FileFd::Write(OutStatusFd, s.c_str(), s.size());   
}

static std::string GetProgressDeb822String(char const * const status,
      char const * const pkg, unsigned long long Done,
      unsigned long long Total, char const * const msg)
{
   float const progress{Done / static_cast<float>(Total) * 100};
   std::ostringstream str;
   str.imbue(std::locale("C.UTF-8"));
   str.precision(4);
   str << "Status: " << status << '\n';
   if (pkg != nullptr)
      str << "Package: " << pkg << '\n';
   str << "Percent: " << std::fixed << progress << '\n'
      << "Message: " << msg << "\n\n";
   return str.str();
}

void PackageManagerProgressDeb822Fd::StartDpkg()
{
   // FIXME: use SetCloseExec here once it taught about throwing
   //        exceptions instead of doing _exit(100) on failure
   fcntl(OutStatusFd,F_SETFD,FD_CLOEXEC); 

   WriteToStatusFd(GetProgressDeb822String("progress", nullptr, StepsDone, StepsTotal, _("Running dpkg")));
}

APT_CONST void PackageManagerProgressDeb822Fd::Stop()
{
}

void PackageManagerProgressDeb822Fd::Error(std::string PackageName,
                                     unsigned int StepsDone,
                                     unsigned int TotalSteps,
                                     std::string ErrorMessage)
{
   WriteToStatusFd(GetProgressDeb822String("Error", PackageName.c_str(), StepsDone, TotalSteps, ErrorMessage.c_str()));
}

void PackageManagerProgressDeb822Fd::ConffilePrompt(std::string PackageName,
                                              unsigned int StepsDone,
                                              unsigned int TotalSteps,
                                              std::string ConfMessage)
{
   WriteToStatusFd(GetProgressDeb822String("ConfFile", PackageName.c_str(), StepsDone, TotalSteps, ConfMessage.c_str()));
}


bool PackageManagerProgressDeb822Fd::StatusChanged(std::string PackageName, 
                                             unsigned int xStepsDone,
                                             unsigned int xTotalSteps,
                                             std::string message)
{
   StepsDone = xStepsDone;
   StepsTotal = xTotalSteps;

   WriteToStatusFd(GetProgressDeb822String("progress", PackageName.c_str(), StepsDone, StepsTotal, message.c_str()));
   return true;
}


PackageManagerFancy::PackageManagerFancy()
   : d(NULL), child_pty(-1)
{
   // setup terminal size
   old_SIGWINCH = signal(SIGWINCH, PackageManagerFancy::staticSIGWINCH);
   instances.push_back(this);
}
std::vector<PackageManagerFancy*> PackageManagerFancy::instances;

PackageManagerFancy::~PackageManagerFancy()
{
   instances.erase(find(instances.begin(), instances.end(), this));
   signal(SIGWINCH, old_SIGWINCH);
}

void PackageManagerFancy::staticSIGWINCH(int signum)
{
   std::vector<PackageManagerFancy *>::const_iterator I;
   for(I = instances.begin(); I != instances.end(); ++I)
      (*I)->HandleSIGWINCH(signum);
}

PackageManagerFancy::TermSize
PackageManagerFancy::GetTerminalSize()
{
   struct winsize win;
   PackageManagerFancy::TermSize s = { 0, 0 };

   // FIXME: get from "child_pty" instead?
   if(ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&win) != 0)
      return s;

   if(_config->FindB("Debug::InstallProgress::Fancy", false) == true)
      std::cerr << "GetTerminalSize: " << win.ws_row << " x " << win.ws_col << std::endl;

   s.rows = win.ws_row;
   s.columns = win.ws_col;
   return s;
}

void PackageManagerFancy::SetupTerminalScrollArea(int nr_rows)
{
     if(_config->FindB("Debug::InstallProgress::Fancy", false) == true)
        std::cerr << "SetupTerminalScrollArea: " << nr_rows << std::endl;

     if (unlikely(nr_rows <= 1))
	return;

     // scroll down a bit to avoid visual glitch when the screen
     // area shrinks by one row
     std::cout << "\n";
         
     // save cursor
     std::cout << "\0337";
         
     // set scroll region (this will place the cursor in the top left)
     std::cout << "\033[0;" << std::to_string(nr_rows - 1) << "r";
            
     // restore cursor but ensure its inside the scrolling area
     std::cout << "\0338";
     static const char *move_cursor_up = "\033[1A";
     std::cout << move_cursor_up;

     // ensure its flushed
     std::flush(std::cout);

     // setup tty size to ensure xterm/linux console are working properly too
     // see bug #731738
     struct winsize win;
     if (ioctl(child_pty, TIOCGWINSZ, (char *)&win) != -1)
     {
	win.ws_row = nr_rows - 1;
	ioctl(child_pty, TIOCSWINSZ, (char *)&win);
     }
}

void PackageManagerFancy::HandleSIGWINCH(int)
{
   int const nr_terminal_rows = GetTerminalSize().rows;
   SetupTerminalScrollArea(nr_terminal_rows);
   DrawStatusLine();
}

void PackageManagerFancy::Start(int a_child_pty)
{
   child_pty = a_child_pty;
   int const nr_terminal_rows = GetTerminalSize().rows;
   SetupTerminalScrollArea(nr_terminal_rows);
}

void PackageManagerFancy::Stop()
{
   int const nr_terminal_rows = GetTerminalSize().rows;
   if (nr_terminal_rows > 0)
   {
      SetupTerminalScrollArea(nr_terminal_rows + 1);

      // override the progress line (sledgehammer)
      static const char* clear_screen_below_cursor = "\033[J";
      std::cout << clear_screen_below_cursor;
      std::flush(std::cout);
   }
   child_pty = -1;
}

std::string 
PackageManagerFancy::GetTextProgressStr(float Percent, int OutputSize)
{
   std::string output;
   if (unlikely(OutputSize < 3))
      return output;

   int const BarSize = OutputSize - 2; // bar without the leading "[" and trailing "]"
   int const BarDone = std::max(0, std::min(BarSize, static_cast<int>(std::floor(Percent * BarSize))));
   output.append("[");
   std::fill_n(std::fill_n(std::back_inserter(output), BarDone, '#'), BarSize - BarDone, '.');
   output.append("]");
   return output;
}

bool PackageManagerFancy::StatusChanged(std::string PackageName, 
                                        unsigned int StepsDone,
                                        unsigned int TotalSteps,
                                        std::string HumanReadableAction)
{
   if (!PackageManager::StatusChanged(PackageName, StepsDone, TotalSteps,
          HumanReadableAction))
      return false;

   return DrawStatusLine();
}
bool PackageManagerFancy::DrawStatusLine()
{
   PackageManagerFancy::TermSize const size = GetTerminalSize();
   if (unlikely(size.rows < 1 || size.columns < 1))
      return false;

   static std::string save_cursor = "\0337";
   static std::string restore_cursor = "\0338";

   // green
   static std::string set_bg_color = DeQuoteString(
      _config->Find("Dpkg::Progress-Fancy::Progress-fg", "%1b[42m"));
   // black
   static std::string set_fg_color = DeQuoteString(
      _config->Find("Dpkg::Progress-Fancy::Progress-bg", "%1b[30m"));

   static std::string restore_bg =  "\033[49m";
   static std::string restore_fg = "\033[39m";

   std::cout << save_cursor
      // move cursor position to last row
             << "\033[" << std::to_string(size.rows) << ";0f"
             << set_bg_color
             << set_fg_color
             << progress_str
             << restore_bg
             << restore_fg;
   std::flush(std::cout);

   // draw text progress bar
   if (_config->FindB("Dpkg::Progress-Fancy::Progress-Bar", true))
   {
      int padding = 4;
      float progressbar_size = size.columns - padding - progress_str.size();
      float current_percent = percentage / 100.0;
      std::cout << " " 
                << GetTextProgressStr(current_percent, progressbar_size)
                << " ";
      std::flush(std::cout);
   }

   // restore
   std::cout << restore_cursor;
   std::flush(std::cout);

   last_reported_progress = percentage;

   return true;
}

bool PackageManagerText::StatusChanged(std::string PackageName, 
                                       unsigned int StepsDone,
                                       unsigned int TotalSteps,
                                       std::string HumanReadableAction)
{
   if (!PackageManager::StatusChanged(PackageName, StepsDone, TotalSteps, HumanReadableAction))
      return false;

   std::cout << progress_str << "\r\n";
   std::flush(std::cout);
                   
   last_reported_progress = percentage;

   return true;
}

PackageManagerText::PackageManagerText() : PackageManager(), d(NULL) {}
PackageManagerText::~PackageManagerText() {}


} // namespace progress
} // namespace apt
Commit	Line	Data
453b82a3 DK	1	#include <config.h>
453b82a3 DK	2
e6ad8031 MV	3	#include <apt-pkg/configuration.h>
e6ad8031 MV	4	#include <apt-pkg/fileutl.h>
31f97d7b	5	#include <apt-pkg/strutl.h>
af36becc	6	#include <apt-pkg/install-progress.h>
c7ea1eba	7
453b82a3 DK	8	#include <signal.h>
	9	#include <unistd.h>
	10	#include <iostream>
453b82a3	11	#include <vector>
31f97d7b	12	#include <sys/ioctl.h>
5e9458e2	13	#include <fcntl.h>
5ed88785	14	#include <algorithm>
c23e6cd5	15	#include <stdio.h>
ac7f8f79	16	#include <sstream>
1cb04707	17	#include <cmath>
e96e4e9c	18
453b82a3 DK	19	#include <apti18n.h>
453b82a3 DK	20
31f97d7b MV	21	namespace APT {
	22	namespace Progress {
	23
440614ff DK	24	PackageManager::PackageManager() : d(NULL), percentage(0.0), last_reported_progress(-1) {}
440614ff DK	25	PackageManager::~PackageManager() {}
61f954bf MV	26
	27	/* Return a APT::Progress::PackageManager based on the global
	28	* apt configuration (i.e. APT::Status-Fd and APT::Status-deb822-Fd)
	29	*/
bd5f39b3 MV	30	PackageManager* PackageManagerProgressFactory()
	31	{
	32	// select the right progress
	33	int status_fd = _config->FindI("APT::Status-Fd", -1);
	34	int status_deb822_fd = _config->FindI("APT::Status-deb822-Fd", -1);
	35
	36	APT::Progress::PackageManager *progress = NULL;
	37	if (status_deb822_fd > 0)
	38	progress = new APT::Progress::PackageManagerProgressDeb822Fd(
	39	status_deb822_fd);
	40	else if (status_fd > 0)
	41	progress = new APT::Progress::PackageManagerProgressFd(status_fd);
	42	else if(_config->FindB("Dpkg::Progress-Fancy", false) == true)
	43	progress = new APT::Progress::PackageManagerFancy();
	44	else if (_config->FindB("Dpkg::Progress",
	45	_config->FindB("DpkgPM::Progress", false)) == true)
	46	progress = new APT::Progress::PackageManagerText();
	47	else
	48	progress = new APT::Progress::PackageManager();
	49	return progress;
	50	}
	51
65512241	52	bool PackageManager::StatusChanged(std::string /PackageName/,
e6ad8031 MV	53	unsigned int StepsDone,
e6ad8031 MV	54	unsigned int TotalSteps,
65512241	55	std::string /HumanReadableAction/)
6c5ae8ed MV	56	{
	57	int reporting_steps = _config->FindI("DpkgPM::Reporting-Steps", 1);
	58	percentage = StepsDone/(float)TotalSteps * 100.0;
	59	strprintf(progress_str, _("Progress: [%3i%%]"), (int)percentage);
	60
	61	if(percentage < (last_reported_progress + reporting_steps))
	62	return false;
	63
	64	return true;
	65	}
	66
e6ad8031	67	PackageManagerProgressFd::PackageManagerProgressFd(int progress_fd)
6c55f07a	68	: d(NULL), StepsDone(0), StepsTotal(1)
e6ad8031 MV	69	{
	70	OutStatusFd = progress_fd;
	71	}
c8a4ce6c	72	PackageManagerProgressFd::~PackageManagerProgressFd() {}
e6ad8031	73
f9935b1c MV	74	void PackageManagerProgressFd::WriteToStatusFd(std::string s)
	75	{
	76	if(OutStatusFd <= 0)
	77	return;
	78	FileFd::Write(OutStatusFd, s.c_str(), s.size());
	79	}
	80
0919f1df DK	81	static std::string GetProgressFdString(char const * const status,
	82	char const * const pkg, unsigned long long Done,
	83	unsigned long long Total, char const * const msg)
	84	{
	85	float const progress{Done / static_cast<float>(Total) * 100};
	86	std::ostringstream str;
	87	str.imbue(std::locale("C.UTF-8"));
	88	str.precision(4);
	89	str << status << ':' << pkg << ':' << std::fixed << progress << ':' << msg << '\n';
	90	return str.str();
	91	}
	92
e45c4617	93	void PackageManagerProgressFd::StartDpkg()
e6ad8031	94	{
5e9458e2 MV	95	if(OutStatusFd <= 0)
	96	return;
	97
	98	// FIXME: use SetCloseExec here once it taught about throwing
	99	// exceptions instead of doing _exit(100) on failure
	100	fcntl(OutStatusFd,F_SETFD,FD_CLOEXEC);
e6ad8031 MV	101
e6ad8031 MV	102	// send status information that we are about to fork dpkg
0919f1df	103	WriteToStatusFd(GetProgressFdString("pmstatus", "dpkg-exec", StepsDone, StepsTotal, _("Running dpkg")));
e6ad8031 MV	104	}
e6ad8031 MV	105
a02db58f	106	APT_CONST void PackageManagerProgressFd::Stop()
e6ad8031	107	{
e6ad8031 MV	108	}
	109
	110	void PackageManagerProgressFd::Error(std::string PackageName,
	111	unsigned int StepsDone,
	112	unsigned int TotalSteps,
	113	std::string ErrorMessage)
	114	{
0919f1df DK	115	WriteToStatusFd(GetProgressFdString("pmerror", PackageName.c_str(),
0919f1df DK	116	StepsDone, TotalSteps, ErrorMessage.c_str()));
e6ad8031 MV	117	}
	118
	119	void PackageManagerProgressFd::ConffilePrompt(std::string PackageName,
	120	unsigned int StepsDone,
	121	unsigned int TotalSteps,
	122	std::string ConfMessage)
	123	{
0919f1df DK	124	WriteToStatusFd(GetProgressFdString("pmconffile", PackageName.c_str(),
0919f1df DK	125	StepsDone, TotalSteps, ConfMessage.c_str()));
e6ad8031 MV	126	}
	127
	128
	129	bool PackageManagerProgressFd::StatusChanged(std::string PackageName,
	130	unsigned int xStepsDone,
	131	unsigned int xTotalSteps,
	132	std::string pkg_action)
	133	{
	134	StepsDone = xStepsDone;
	135	StepsTotal = xTotalSteps;
	136
0919f1df DK	137	WriteToStatusFd(GetProgressFdString("pmstatus", StringSplit(PackageName, ":")[0].c_str(),
0919f1df DK	138	StepsDone, StepsTotal, pkg_action.c_str()));
65dbd5a1 MV	139
	140	if(_config->FindB("Debug::APT::Progress::PackageManagerFd", false) == true)
	141	std::cerr << "progress: " << PackageName << " " << xStepsDone
	142	<< " " << xTotalSteps << " " << pkg_action
	143	<< std::endl;
	144
	145
e6ad8031 MV	146	return true;
	147	}
	148
c7ea1eba MV	149
c7ea1eba MV	150	PackageManagerProgressDeb822Fd::PackageManagerProgressDeb822Fd(int progress_fd)
6c55f07a	151	: d(NULL), StepsDone(0), StepsTotal(1)
c7ea1eba MV	152	{
	153	OutStatusFd = progress_fd;
	154	}
c8a4ce6c	155	PackageManagerProgressDeb822Fd::~PackageManagerProgressDeb822Fd() {}
c7ea1eba MV	156
	157	void PackageManagerProgressDeb822Fd::WriteToStatusFd(std::string s)
	158	{
	159	FileFd::Write(OutStatusFd, s.c_str(), s.size());
	160	}
	161
0919f1df DK	162	static std::string GetProgressDeb822String(char const * const status,
	163	char const * const pkg, unsigned long long Done,
	164	unsigned long long Total, char const * const msg)
	165	{
	166	float const progress{Done / static_cast<float>(Total) * 100};
	167	std::ostringstream str;
	168	str.imbue(std::locale("C.UTF-8"));
	169	str.precision(4);
	170	str << "Status: " << status << '\n';
	171	if (pkg != nullptr)
	172	str << "Package: " << pkg << '\n';
	173	str << "Percent: " << std::fixed << progress << '\n'
	174	<< "Message: " << msg << "\n\n";
	175	return str.str();
	176	}
	177
790d41f6	178	void PackageManagerProgressDeb822Fd::StartDpkg()
c7ea1eba MV	179	{
	180	// FIXME: use SetCloseExec here once it taught about throwing
	181	// exceptions instead of doing _exit(100) on failure
	182	fcntl(OutStatusFd,F_SETFD,FD_CLOEXEC);
	183
0919f1df	184	WriteToStatusFd(GetProgressDeb822String("progress", nullptr, StepsDone, StepsTotal, _("Running dpkg")));
c7ea1eba MV	185	}
c7ea1eba MV	186
a02db58f	187	APT_CONST void PackageManagerProgressDeb822Fd::Stop()
c7ea1eba	188	{
c7ea1eba MV	189	}
	190
	191	void PackageManagerProgressDeb822Fd::Error(std::string PackageName,
	192	unsigned int StepsDone,
	193	unsigned int TotalSteps,
	194	std::string ErrorMessage)
	195	{
0919f1df	196	WriteToStatusFd(GetProgressDeb822String("Error", PackageName.c_str(), StepsDone, TotalSteps, ErrorMessage.c_str()));
c7ea1eba MV	197	}
	198
	199	void PackageManagerProgressDeb822Fd::ConffilePrompt(std::string PackageName,
	200	unsigned int StepsDone,
	201	unsigned int TotalSteps,
	202	std::string ConfMessage)
	203	{
0919f1df	204	WriteToStatusFd(GetProgressDeb822String("ConfFile", PackageName.c_str(), StepsDone, TotalSteps, ConfMessage.c_str()));
c7ea1eba MV	205	}
	206
	207
	208	bool PackageManagerProgressDeb822Fd::StatusChanged(std::string PackageName,
	209	unsigned int xStepsDone,
	210	unsigned int xTotalSteps,
	211	std::string message)
	212	{
	213	StepsDone = xStepsDone;
	214	StepsTotal = xTotalSteps;
	215
0919f1df	216	WriteToStatusFd(GetProgressDeb822String("progress", PackageName.c_str(), StepsDone, StepsTotal, message.c_str()));
c7ea1eba MV	217	return true;
	218	}
	219
5ed88785 MV	220
5ed88785 MV	221	PackageManagerFancy::PackageManagerFancy()
6c55f07a	222	: d(NULL), child_pty(-1)
5ed88785 MV	223	{
	224	// setup terminal size
	225	old_SIGWINCH = signal(SIGWINCH, PackageManagerFancy::staticSIGWINCH);
	226	instances.push_back(this);
	227	}
	228	std::vector<PackageManagerFancy*> PackageManagerFancy::instances;
	229
	230	PackageManagerFancy::~PackageManagerFancy()
	231	{
	232	instances.erase(find(instances.begin(), instances.end(), this));
	233	signal(SIGWINCH, old_SIGWINCH);
	234	}
	235
	236	void PackageManagerFancy::staticSIGWINCH(int signum)
	237	{
	238	std::vector<PackageManagerFancy *>::const_iterator I;
9ce3cfc9	239	for(I = instances.begin(); I != instances.end(); ++I)
5ed88785 MV	240	(*I)->HandleSIGWINCH(signum);
	241	}
	242
fa211e2d MV	243	PackageManagerFancy::TermSize
fa211e2d MV	244	PackageManagerFancy::GetTerminalSize()
e96e4e9c MV	245	{
e96e4e9c MV	246	struct winsize win;
76bd63e2	247	PackageManagerFancy::TermSize s = { 0, 0 };
fa211e2d	248
5ed88785	249	// FIXME: get from "child_pty" instead?
e96e4e9c	250	if(ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&win) != 0)
fa211e2d	251	return s;
5ed88785 MV	252
5ed88785 MV	253	if(_config->FindB("Debug::InstallProgress::Fancy", false) == true)
76bd63e2	254	std::cerr << "GetTerminalSize: " << win.ws_row << " x " << win.ws_col << std::endl;
fa211e2d MV	255
	256	s.rows = win.ws_row;
	257	s.columns = win.ws_col;
	258	return s;
e96e4e9c	259	}
c7ea1eba	260
db78c60c	261	void PackageManagerFancy::SetupTerminalScrollArea(int nr_rows)
31f97d7b	262	{
5ed88785 MV	263	if(_config->FindB("Debug::InstallProgress::Fancy", false) == true)
	264	std::cerr << "SetupTerminalScrollArea: " << nr_rows << std::endl;
	265
76bd63e2 DK	266	if (unlikely(nr_rows <= 1))
	267	return;
	268
31f97d7b MV	269	// scroll down a bit to avoid visual glitch when the screen
	270	// area shrinks by one row
	271	std::cout << "\n";
	272
	273	// save cursor
45b19add	274	std::cout << "\0337";
31f97d7b MV	275
31f97d7b MV	276	// set scroll region (this will place the cursor in the top left)
b58e2c7c	277	std::cout << "\033[0;" << std::to_string(nr_rows - 1) << "r";
31f97d7b MV	278
31f97d7b MV	279	// restore cursor but ensure its inside the scrolling area
45b19add	280	std::cout << "\0338";
31f97d7b MV	281	static const char *move_cursor_up = "\033[1A";
31f97d7b MV	282	std::cout << move_cursor_up;
db78c60c	283
5ed88785	284	// ensure its flushed
31f97d7b	285	std::flush(std::cout);
31f97d7b	286
5ed88785 MV	287	// setup tty size to ensure xterm/linux console are working properly too
	288	// see bug #731738
	289	struct winsize win;
76bd63e2 DK	290	if (ioctl(child_pty, TIOCGWINSZ, (char *)&win) != -1)
	291	{
	292	win.ws_row = nr_rows - 1;
	293	ioctl(child_pty, TIOCSWINSZ, (char *)&win);
	294	}
e96e4e9c MV	295	}
	296
	297	void PackageManagerFancy::HandleSIGWINCH(int)
	298	{
76bd63e2	299	int const nr_terminal_rows = GetTerminalSize().rows;
e96e4e9c	300	SetupTerminalScrollArea(nr_terminal_rows);
76bd63e2	301	DrawStatusLine();
31f97d7b MV	302	}
31f97d7b MV	303
5ed88785	304	void PackageManagerFancy::Start(int a_child_pty)
31f97d7b	305	{
5ed88785	306	child_pty = a_child_pty;
76bd63e2 DK	307	int const nr_terminal_rows = GetTerminalSize().rows;
76bd63e2 DK	308	SetupTerminalScrollArea(nr_terminal_rows);
31f97d7b MV	309	}
31f97d7b MV	310
a22fdebf	311	void PackageManagerFancy::Stop()
31f97d7b	312	{
76bd63e2	313	int const nr_terminal_rows = GetTerminalSize().rows;
db78c60c MV	314	if (nr_terminal_rows > 0)
	315	{
	316	SetupTerminalScrollArea(nr_terminal_rows + 1);
31f97d7b	317
db78c60c MV	318	// override the progress line (sledgehammer)
	319	static const char* clear_screen_below_cursor = "\033[J";
	320	std::cout << clear_screen_below_cursor;
915f4ac6	321	std::flush(std::cout);
db78c60c	322	}
5ed88785	323	child_pty = -1;
31f97d7b MV	324	}
31f97d7b MV	325
fa211e2d MV	326	std::string
	327	PackageManagerFancy::GetTextProgressStr(float Percent, int OutputSize)
	328	{
	329	std::string output;
1cb04707	330	if (unlikely(OutputSize < 3))
fa211e2d	331	return output;
1cb04707 DK	332
	333	int const BarSize = OutputSize - 2; // bar without the leading "[" and trailing "]"
	334	int const BarDone = std::max(0, std::min(BarSize, static_cast<int>(std::floor(Percent * BarSize))));
	335	output.append("[");
	336	std::fill_n(std::fill_n(std::back_inserter(output), BarDone, '#'), BarSize - BarDone, '.');
	337	output.append("]");
fa211e2d MV	338	return output;
	339	}
	340
6c5ae8ed	341	bool PackageManagerFancy::StatusChanged(std::string PackageName,
31f97d7b	342	unsigned int StepsDone,
e6ad8031 MV	343	unsigned int TotalSteps,
e6ad8031 MV	344	std::string HumanReadableAction)
31f97d7b	345	{
e6ad8031 MV	346	if (!PackageManager::StatusChanged(PackageName, StepsDone, TotalSteps,
e6ad8031 MV	347	HumanReadableAction))
6c5ae8ed	348	return false;
31f97d7b	349
76bd63e2 DK	350	return DrawStatusLine();
	351	}
	352	bool PackageManagerFancy::DrawStatusLine()
	353	{
	354	PackageManagerFancy::TermSize const size = GetTerminalSize();
	355	if (unlikely(size.rows < 1 \|\| size.columns < 1))
	356	return false;
31f97d7b	357
45b19add JM	358	static std::string save_cursor = "\0337";
45b19add JM	359	static std::string restore_cursor = "\0338";
453b82a3	360
c34d1202 MV	361	// green
	362	static std::string set_bg_color = DeQuoteString(
	363	_config->Find("Dpkg::Progress-Fancy::Progress-fg", "%1b[42m"));
	364	// black
	365	static std::string set_fg_color = DeQuoteString(
	366	_config->Find("Dpkg::Progress-Fancy::Progress-bg", "%1b[30m"));
453b82a3 DK	367
	368	static std::string restore_bg = "\033[49m";
	369	static std::string restore_fg = "\033[39m";
	370
31f97d7b MV	371	std::cout << save_cursor
31f97d7b MV	372	// move cursor position to last row
b58e2c7c	373	<< "\033[" << std::to_string(size.rows) << ";0f"
31f97d7b MV	374	<< set_bg_color
	375	<< set_fg_color
	376	<< progress_str
31f97d7b MV	377	<< restore_bg
	378	<< restore_fg;
	379	std::flush(std::cout);
fa211e2d MV	380
	381	// draw text progress bar
	382	if (_config->FindB("Dpkg::Progress-Fancy::Progress-Bar", true))
	383	{
	384	int padding = 4;
	385	float progressbar_size = size.columns - padding - progress_str.size();
76bd63e2	386	float current_percent = percentage / 100.0;
fa211e2d MV	387	std::cout << " "
	388	<< GetTextProgressStr(current_percent, progressbar_size)
	389	<< " ";
	390	std::flush(std::cout);
	391	}
	392
	393	// restore
	394	std::cout << restore_cursor;
	395	std::flush(std::cout);
	396
31f97d7b	397	last_reported_progress = percentage;
6c5ae8ed MV	398
6c5ae8ed MV	399	return true;
31f97d7b MV	400	}
31f97d7b MV	401
6c5ae8ed	402	bool PackageManagerText::StatusChanged(std::string PackageName,
31f97d7b	403	unsigned int StepsDone,
e6ad8031 MV	404	unsigned int TotalSteps,
e6ad8031 MV	405	std::string HumanReadableAction)
31f97d7b	406	{
e6ad8031	407	if (!PackageManager::StatusChanged(PackageName, StepsDone, TotalSteps, HumanReadableAction))
6c5ae8ed	408	return false;
31f97d7b MV	409
	410	std::cout << progress_str << "\r\n";
	411	std::flush(std::cout);
	412
	413	last_reported_progress = percentage;
6c5ae8ed MV	414
6c5ae8ed MV	415	return true;
31f97d7b MV	416	}
31f97d7b MV	417
6c55f07a	418	PackageManagerText::PackageManagerText() : PackageManager(), d(NULL) {}
c8a4ce6c DK	419	PackageManagerText::~PackageManagerText() {}
	420
	421
31f97d7b	422
c7ea1eba	423
d3e8fbb3 DK	424	} // namespace progress
d3e8fbb3 DK	425	} // namespace apt