diff options
Diffstat (limited to '')
| -rw-r--r-- | apt-pkg/install-progress.cc | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/apt-pkg/install-progress.cc b/apt-pkg/install-progress.cc new file mode 100644 index 0000000..2e8fac2 --- /dev/null +++ b/apt-pkg/install-progress.cc @@ -0,0 +1,425 @@ +#include <config.h> + +#include <apt-pkg/configuration.h> +#include <apt-pkg/fileutl.h> +#include <apt-pkg/install-progress.h> +#include <apt-pkg/strutl.h> + +#include <algorithm> +#include <cmath> +#include <iostream> +#include <sstream> +#include <vector> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <sys/ioctl.h> +#include <unistd.h> + +#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/(double)TotalSteps * 100.0; + strprintf(progress_str, _("Progress: [%3li%%]"), std::lround(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::classic()); + 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"))); +} + +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::classic()); + 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"))); +} + +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; + auto const progressbar_size = size.columns - padding - progress_str.size(); + auto const current_percent = percentage / 100.0f; + 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 |