Mercurial > kallithea

annotate rhodecode/lib/vcs/utils/progressbar.py @ 2278:24095abde696 beta

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print statement cleanup
author Marcin Kuzminski <marcin@python-works.com>
date Wed, 16 May 2012 01:24:23 +0200
parents 324ac367a4da
children d7488551578e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2007
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1 # encoding: UTF-8
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2 import sys
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3 import datetime
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4 from string import Template
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5 from rhodecode.lib.vcs.utils.filesize import filesizeformat
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6 from rhodecode.lib.vcs.utils.helpers import get_total_seconds
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7
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8
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9 class ProgressBarError(Exception):
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10 pass
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11
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12 class AlreadyFinishedError(ProgressBarError):
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13 pass
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14
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15
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16 class ProgressBar(object):
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17
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18 default_elements = ['percentage', 'bar', 'steps']
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19
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20 def __init__(self, steps=100, stream=None, elements=None):
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21 self.step = 0
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22 self.steps = steps
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23 self.stream = stream or sys.stderr
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24 self.bar_char = '='
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25 self.width = 50
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26 self.separator = ' | '
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27 self.elements = elements or self.default_elements
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28 self.started = None
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29 self.finished = False
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30 self.steps_label = 'Step'
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31 self.time_label = 'Time'
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32 self.eta_label = 'ETA'
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33 self.speed_label = 'Speed'
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34 self.transfer_label = 'Transfer'
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35
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36 def __str__(self):
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37 return self.get_line()
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38
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39 def __iter__(self):
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40 start = self.step
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41 end = self.steps + 1
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42 for x in xrange(start, end):
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43 self.render(x)
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44 yield x
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45
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46 def get_separator(self):
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47 return self.separator
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48
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49 def get_bar_char(self):
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50 return self.bar_char
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51
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52 def get_bar(self):
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53 char = self.get_bar_char()
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54 perc = self.get_percentage()
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55 length = int(self.width * perc / 100)
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56 bar = char * length
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57 bar = bar.ljust(self.width)
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58 return bar
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59
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60 def get_elements(self):
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61 return self.elements
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62
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63 def get_template(self):
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64 separator = self.get_separator()
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65 elements = self.get_elements()
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66 return Template(separator.join((('$%s' % e) for e in elements)))
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67
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68 def get_total_time(self, current_time=None):
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69 if current_time is None:
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70 current_time = datetime.datetime.now()
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71 if not self.started:
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72 return datetime.timedelta()
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73 return current_time - self.started
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74
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75 def get_rendered_total_time(self):
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76 delta = self.get_total_time()
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77 if not delta:
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78 ttime = '-'
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79 else:
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80 ttime = str(delta)
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81 return '%s %s' % (self.time_label, ttime)
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82
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83 def get_eta(self, current_time=None):
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84 if current_time is None:
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85 current_time = datetime.datetime.now()
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86 if self.step == 0:
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87 return datetime.timedelta()
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88 total_seconds = get_total_seconds(self.get_total_time())
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89 eta_seconds = total_seconds * self.steps / self.step - total_seconds
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90 return datetime.timedelta(seconds=int(eta_seconds))
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91
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92 def get_rendered_eta(self):
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93 eta = self.get_eta()
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94 if not eta:
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95 eta = '--:--:--'
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96 else:
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97 eta = str(eta).rjust(8)
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98 return '%s: %s' % (self.eta_label, eta)
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99
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100 def get_percentage(self):
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101 return float(self.step) / self.steps * 100
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102
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103 def get_rendered_percentage(self):
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104 perc = self.get_percentage()
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105 return ('%s%%' % (int(perc))).rjust(5)
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106
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107 def get_rendered_steps(self):
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108 return '%s: %s/%s' % (self.steps_label, self.step, self.steps)
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109
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110 def get_rendered_speed(self, step=None, total_seconds=None):
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111 if step is None:
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112 step = self.step
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113 if total_seconds is None:
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114 total_seconds = get_total_seconds(self.get_total_time())
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115 if step <= 0 or total_seconds <= 0:
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116 speed = '-'
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117 else:
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118 speed = filesizeformat(float(step) / total_seconds)
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119 return '%s: %s/s' % (self.speed_label, speed)
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120
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121 def get_rendered_transfer(self, step=None, steps=None):
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122 if step is None:
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123 step = self.step
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124 if steps is None:
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125 steps = self.steps
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126
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127 if steps <= 0:
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128 return '%s: -' % self.transfer_label
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129 total = filesizeformat(float(steps))
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130 if step <= 0:
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131 transferred = '-'
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132 else:
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133 transferred = filesizeformat(float(step))
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134 return '%s: %s / %s' % (self.transfer_label, transferred, total)
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135
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136 def get_context(self):
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137 return {
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138 'percentage': self.get_rendered_percentage(),
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139 'bar': self.get_bar(),
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140 'steps': self.get_rendered_steps(),
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141 'time': self.get_rendered_total_time(),
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142 'eta': self.get_rendered_eta(),
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143 'speed': self.get_rendered_speed(),
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144 'transfer': self.get_rendered_transfer(),
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145 }
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146
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147 def get_line(self):
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148 template = self.get_template()
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149 context = self.get_context()
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150 return template.safe_substitute(**context)
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151
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152 def write(self, data):
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153 self.stream.write(data)
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154
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155 def render(self, step):
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156 if not self.started:
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157 self.started = datetime.datetime.now()
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158 if self.finished:
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159 raise AlreadyFinishedError
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160 self.step = step
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161 self.write('\r%s' % self)
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162 if step == self.steps:
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163 self.finished = True
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164 if step == self.steps:
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165 self.write('\n')
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166
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167
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168 """
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169 termcolors.py
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170
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171 Grabbed from Django (http://www.djangoproject.com)
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172 """
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173
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174 color_names = ('black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white')
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175 foreground = dict([(color_names[x], '3%s' % x) for x in range(8)])
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176 background = dict([(color_names[x], '4%s' % x) for x in range(8)])
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177
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178 RESET = '0'
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179 opt_dict = {'bold': '1', 'underscore': '4', 'blink': '5', 'reverse': '7', 'conceal': '8'}
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180
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181 def colorize(text='', opts=(), **kwargs):
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182 """
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183 Returns your text, enclosed in ANSI graphics codes.
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184
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185 Depends on the keyword arguments 'fg' and 'bg', and the contents of
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186 the opts tuple/list.
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187
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188 Returns the RESET code if no parameters are given.
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189
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190 Valid colors:
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191 'black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white'
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192
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193 Valid options:
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194 'bold'
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195 'underscore'
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196 'blink'
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197 'reverse'
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198 'conceal'
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199 'noreset' - string will not be auto-terminated with the RESET code
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200
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201 Examples:
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202 colorize('hello', fg='red', bg='blue', opts=('blink',))
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203 colorize()
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204 colorize('goodbye', opts=('underscore',))
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205 print colorize('first line', fg='red', opts=('noreset',))
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206 print 'this should be red too'
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207 print colorize('and so should this')
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208 print 'this should not be red'
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209 """
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210 code_list = []
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211 if text == '' and len(opts) == 1 and opts[0] == 'reset':
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212 return '\x1b[%sm' % RESET
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213 for k, v in kwargs.iteritems():
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214 if k == 'fg':
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215 code_list.append(foreground[v])
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216 elif k == 'bg':
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217 code_list.append(background[v])
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218 for o in opts:
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219 if o in opt_dict:
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220 code_list.append(opt_dict[o])
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221 if 'noreset' not in opts:
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222 text = text + '\x1b[%sm' % RESET
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223 return ('\x1b[%sm' % ';'.join(code_list)) + text
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224
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225 def make_style(opts=(), **kwargs):
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226 """
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227 Returns a function with default parameters for colorize()
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228
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229 Example:
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230 bold_red = make_style(opts=('bold',), fg='red')
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231 print bold_red('hello')
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232 KEYWORD = make_style(fg='yellow')
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233 COMMENT = make_style(fg='blue', opts=('bold',))
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234 """
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235 return lambda text: colorize(text, opts, **kwargs)
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236
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237 NOCOLOR_PALETTE = 'nocolor'
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238 DARK_PALETTE = 'dark'
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239 LIGHT_PALETTE = 'light'
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240
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241 PALETTES = {
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242 NOCOLOR_PALETTE: {
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243 'ERROR': {},
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244 'NOTICE': {},
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245 'SQL_FIELD': {},
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246 'SQL_COLTYPE': {},
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247 'SQL_KEYWORD': {},
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248 'SQL_TABLE': {},
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249 'HTTP_INFO': {},
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250 'HTTP_SUCCESS': {},
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251 'HTTP_REDIRECT': {},
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252 'HTTP_NOT_MODIFIED': {},
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253 'HTTP_BAD_REQUEST': {},
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254 'HTTP_NOT_FOUND': {},
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255 'HTTP_SERVER_ERROR': {},
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256 },
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257 DARK_PALETTE: {
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258 'ERROR': { 'fg': 'red', 'opts': ('bold',) },
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259 'NOTICE': { 'fg': 'red' },
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260 'SQL_FIELD': { 'fg': 'green', 'opts': ('bold',) },
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261 'SQL_COLTYPE': { 'fg': 'green' },
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262 'SQL_KEYWORD': { 'fg': 'yellow' },
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263 'SQL_TABLE': { 'opts': ('bold',) },
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264 'HTTP_INFO': { 'opts': ('bold',) },
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265 'HTTP_SUCCESS': { },
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266 'HTTP_REDIRECT': { 'fg': 'green' },
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267 'HTTP_NOT_MODIFIED': { 'fg': 'cyan' },
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268 'HTTP_BAD_REQUEST': { 'fg': 'red', 'opts': ('bold',) },
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269 'HTTP_NOT_FOUND': { 'fg': 'yellow' },
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270 'HTTP_SERVER_ERROR': { 'fg': 'magenta', 'opts': ('bold',) },
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271 },
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272 LIGHT_PALETTE: {
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273 'ERROR': { 'fg': 'red', 'opts': ('bold',) },
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274 'NOTICE': { 'fg': 'red' },
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275 'SQL_FIELD': { 'fg': 'green', 'opts': ('bold',) },
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276 'SQL_COLTYPE': { 'fg': 'green' },
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277 'SQL_KEYWORD': { 'fg': 'blue' },
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278 'SQL_TABLE': { 'opts': ('bold',) },
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279 'HTTP_INFO': { 'opts': ('bold',) },
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280 'HTTP_SUCCESS': { },
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281 'HTTP_REDIRECT': { 'fg': 'green', 'opts': ('bold',) },
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282 'HTTP_NOT_MODIFIED': { 'fg': 'green' },
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283 'HTTP_BAD_REQUEST': { 'fg': 'red', 'opts': ('bold',) },
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284 'HTTP_NOT_FOUND': { 'fg': 'red' },
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285 'HTTP_SERVER_ERROR': { 'fg': 'magenta', 'opts': ('bold',) },
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286 }
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287 }
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288 DEFAULT_PALETTE = DARK_PALETTE
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289
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290 # ---------------------------- #
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291 # --- End of termcolors.py --- #
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292 # ---------------------------- #
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293
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294
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295 class ColoredProgressBar(ProgressBar):
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296
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297 BAR_COLORS = (
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298 (10, 'red'),
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299 (30, 'magenta'),
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300 (50, 'yellow'),
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301 (99, 'green'),
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302 (100, 'blue'),
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303 )
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304
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305 def get_line(self):
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306 line = super(ColoredProgressBar, self).get_line()
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307 perc = self.get_percentage()
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308 if perc > 100:
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309 color = 'blue'
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310 for max_perc, color in self.BAR_COLORS:
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311 if perc <= max_perc:
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312 break
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313 return colorize(line, fg=color)
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314
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315
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316 class AnimatedProgressBar(ProgressBar):
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317
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318 def get_bar_char(self):
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319 chars = '-/|\\'
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320 if self.step >= self.steps:
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321 return '='
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322 return chars[self.step % len(chars)]
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323
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324
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325 class BarOnlyProgressBar(ProgressBar):
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326
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327 default_elements = ['bar', 'steps']
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328
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329 def get_bar(self):
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330 bar = super(BarOnlyProgressBar, self).get_bar()
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331 perc = self.get_percentage()
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332 perc_text = '%s%%' % int(perc)
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333 text = (' %s%% ' % (perc_text)).center(self.width, '=')
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334 L = text.find(' ')
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335 R = text.rfind(' ')
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336 bar = ' '.join((bar[:L], perc_text, bar[R:]))
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337 return bar
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338
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339
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340 class AnimatedColoredProgressBar(AnimatedProgressBar,
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341 ColoredProgressBar):
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342 pass
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343
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344
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345 class BarOnlyColoredProgressBar(ColoredProgressBar,
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346 BarOnlyProgressBar):
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347 pass
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348
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349
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350
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351 def main():
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352 import time
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353
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354 print "Standard progress bar..."
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355 bar = ProgressBar(30)
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356 for x in xrange(1, 31):
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357 bar.render(x)
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358 time.sleep(0.02)
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359 bar.stream.write('\n')
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360 print
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361
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362 print "Empty bar..."
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363 bar = ProgressBar(50)
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364 bar.render(0)
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365 print
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366 print
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367
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368 print "Colored bar..."
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369 bar = ColoredProgressBar(20)
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370 for x in bar:
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371 time.sleep(0.01)
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372 print
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373
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374 print "Animated char bar..."
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375 bar = AnimatedProgressBar(20)
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376 for x in bar:
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377 time.sleep(0.01)
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378 print
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379
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380 print "Animated + colored char bar..."
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381 bar = AnimatedColoredProgressBar(20)
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382 for x in bar:
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383 time.sleep(0.01)
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384 print
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385
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386 print "Bar only ..."
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387 bar = BarOnlyProgressBar(20)
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diff changeset
388 for x in bar:
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389 time.sleep(0.01)
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390 print
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391
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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392 print "Colored, longer bar-only, eta, total time ..."
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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393 bar = BarOnlyColoredProgressBar(40)
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394 bar.width = 60
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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395 bar.elements += ['time', 'eta']
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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396 for x in bar:
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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397 time.sleep(0.01)
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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398 print
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
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diff changeset
399 print
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
400
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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401 print "File transfer bar, breaks after 2 seconds ..."
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402 total_bytes = 1024 * 1024 * 2
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403 bar = ProgressBar(total_bytes)
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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404 bar.width = 50
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
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diff changeset
405 bar.elements.remove('steps')
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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diff changeset
406 bar.elements += ['transfer', 'time', 'eta', 'speed']
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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407 for x in xrange(0, bar.steps, 1024):
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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408 bar.render(x)
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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diff changeset
409 time.sleep(0.01)
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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410 now = datetime.datetime.now()
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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diff changeset
411 if now - bar.started >= datetime.timedelta(seconds=2):
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
412 break
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
413 print
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
414 print
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
415
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
416
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
417
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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diff changeset
418 if __name__ == '__main__':
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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419 main()