Edit file

File name : Progress.py

Content :# -*- coding: utf-8 -*- ## Amazon S3 manager ## Author: Michal Ludvig <michal@logix.cz> ## http://www.logix.cz/michal ## License: GPL Version 2 ## Copyright: TGRMN Software and contributors from __future__ import absolute_import, division import sys import datetime import time import S3.Utils class Progress(object): _stdout = sys.stdout _last_display = 0 def __init__(self, labels, total_size): self._stdout = sys.stdout self.new_file(labels, total_size) def new_file(self, labels, total_size): self.labels = labels self.total_size = total_size # Set initial_position to something in the # case we're not counting from 0. For instance # when appending to a partially downloaded file. # Setting initial_position will let the speed # be computed right. self.initial_position = 0 self.current_position = self.initial_position self.time_start = datetime.datetime.now() self.time_last = self.time_start self.time_current = self.time_start self.display(new_file = True) def update(self, current_position = -1, delta_position = -1): self.time_last = self.time_current self.time_current = datetime.datetime.now() if current_position > -1: self.current_position = current_position elif delta_position > -1: self.current_position += delta_position #else: # no update, just call display() self.display() def done(self, message): self.display(done_message = message) def output_labels(self): self._stdout.write(u"%(action)s: '%(source)s' -> '%(destination)s' %(extra)s\n" % self.labels) self._stdout.flush() def _display_needed(self): # We only need to update the display every so often. if time.time() - self._last_display > 1: self._last_display = time.time() return True return False def display(self, new_file = False, done_message = None): """ display(new_file = False[/True], done = False[/True]) Override this method to provide a nicer output. """ if new_file: self.output_labels() self.last_milestone = 0 return if self.current_position == self.total_size: print_size = S3.Utils.formatSize(self.current_position, True) if print_size[1] != "": print_size[1] += "B" timedelta = self.time_current - self.time_start sec_elapsed = timedelta.days * 86400 + timedelta.seconds + float(timedelta.microseconds) / 1000000.0 print_speed = S3.Utils.formatSize((self.current_position - self.initial_position) / sec_elapsed, True, True) self._stdout.write("100%% %s%s in %.2fs (%.2f %sB/s)\n" % (print_size[0], print_size[1], sec_elapsed, print_speed[0], print_speed[1])) self._stdout.flush() return rel_position = (self.current_position * 100) // self.total_size if rel_position >= self.last_milestone: # Move by increments of 5. # NOTE: to check: Looks like to not do what is looks like to be designed to do self.last_milestone = (rel_position // 5) * 5 self._stdout.write("%d%% ", self.last_milestone) self._stdout.flush() return class ProgressANSI(Progress): ## http://en.wikipedia.org/wiki/ANSI_escape_code SCI = '\x1b[' ANSI_hide_cursor = SCI + "?25l" ANSI_show_cursor = SCI + "?25h" ANSI_save_cursor_pos = SCI + "s" ANSI_restore_cursor_pos = SCI + "u" ANSI_move_cursor_to_column = SCI + "%uG" ANSI_erase_to_eol = SCI + "0K" ANSI_erase_current_line = SCI + "2K" def display(self, new_file = False, done_message = None): """ display(new_file = False[/True], done_message = None) """ if new_file: self.output_labels() self._stdout.write(self.ANSI_save_cursor_pos) self._stdout.flush() return # Only display progress every so often if not (new_file or done_message) and not self._display_needed(): return timedelta = self.time_current - self.time_start sec_elapsed = timedelta.days * 86400 + timedelta.seconds + float(timedelta.microseconds)/1000000.0 if (sec_elapsed > 0): print_speed = S3.Utils.formatSize((self.current_position - self.initial_position) / sec_elapsed, True, True) else: print_speed = (0, "") self._stdout.write(self.ANSI_restore_cursor_pos) self._stdout.write(self.ANSI_erase_to_eol) self._stdout.write("%(current)s of %(total)s %(percent)3d%% in %(elapsed)ds %(speed).2f %(speed_coeff)sB/s" % { "current" : str(self.current_position).rjust(len(str(self.total_size))), "total" : self.total_size, "percent" : self.total_size and ((self.current_position * 100) // self.total_size) or 0, "elapsed" : sec_elapsed, "speed" : print_speed[0], "speed_coeff" : print_speed[1] }) if done_message: self._stdout.write(" %s\n" % done_message) self._stdout.flush() class ProgressCR(Progress): ## Uses CR char (Carriage Return) just like other progress bars do. CR_char = chr(13) def display(self, new_file = False, done_message = None): """ display(new_file = False[/True], done_message = None) """ if new_file: self.output_labels() return # Only display progress every so often if not (new_file or done_message) and not self._display_needed(): return timedelta = self.time_current - self.time_start sec_elapsed = timedelta.days * 86400 + timedelta.seconds + float(timedelta.microseconds)/1000000.0 if (sec_elapsed > 0): print_speed = S3.Utils.formatSize((self.current_position - self.initial_position) / sec_elapsed, True, True) else: print_speed = (0, "") self._stdout.write(self.CR_char) output = " %(current)s of %(total)s %(percent)3d%% in %(elapsed)4ds %(speed)7.2f %(speed_coeff)sB/s" % { "current" : str(self.current_position).rjust(len(str(self.total_size))), "total" : self.total_size, "percent" : self.total_size and ((self.current_position * 100) // self.total_size) or 0, "elapsed" : sec_elapsed, "speed" : print_speed[0], "speed_coeff" : print_speed[1] } self._stdout.write(output) if done_message: self._stdout.write(" %s\n" % done_message) self._stdout.flush() class StatsInfo(object): """Holding info for stats totals""" def __init__(self): self.files = None self.size = None self.files_transferred = None self.size_transferred = None self.files_copied = None self.size_copied = None self.files_deleted = None self.size_deleted = None def format_output(self): outstr = u"" if self.files is not None: tmp_str = u"Number of files: %d"% self.files if self.size is not None: tmp_str += " (%d bytes) "% self.size outstr += u"\nStats: " + tmp_str if self.files_transferred: tmp_str = u"Number of files transferred: %d"% self.files_transferred if self.size_transferred is not None: tmp_str += " (%d bytes) "% self.size_transferred outstr += u"\nStats: " + tmp_str if self.files_copied: tmp_str = u"Number of files copied: %d"% self.files_copied if self.size_copied is not None: tmp_str += " (%d bytes) "% self.size_copied outstr += u"\nStats: " + tmp_str if self.files_deleted: tmp_str = u"Number of files deleted: %d"% self.files_deleted if self.size_deleted is not None: tmp_str += " (%d bytes) "% self.size_deleted outstr += u"\nStats: " + tmp_str return outstr # vim:et:ts=4:sts=4:ai

Save