annotate mercurial/progress.py @ 41774:2e2076c8c25f

commit: migrate to new method for getting copy info Differential Revision: https://phab.mercurial-scm.org/D6014
author Martin von Zweigbergk <martinvonz@google.com>
date Wed, 27 Dec 2017 22:31:24 -0800
parents 7b80406b8271
children 2372284d9457
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # progress.py progress bars related code
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2 #
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3 # Copyright (C) 2010 Augie Fackler <durin42@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import errno
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11 import threading
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12 import time
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13
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14 from .i18n import _
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15 from . import encoding
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16
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17 def spacejoin(*args):
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18 return ' '.join(s for s in args if s)
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19
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20 def shouldprint(ui):
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21 return not (ui.quiet or ui.plain('progress')) and (
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22 ui._isatty(ui.ferr) or ui.configbool('progress', 'assume-tty'))
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23
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24 def fmtremaining(seconds):
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25 """format a number of remaining seconds in human readable way
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26
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27 This will properly display seconds, minutes, hours, days if needed"""
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28 if seconds < 60:
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29 # i18n: format XX seconds as "XXs"
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30 return _("%02ds") % (seconds)
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31 minutes = seconds // 60
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32 if minutes < 60:
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33 seconds -= minutes * 60
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34 # i18n: format X minutes and YY seconds as "XmYYs"
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35 return _("%dm%02ds") % (minutes, seconds)
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36 # we're going to ignore seconds in this case
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37 minutes += 1
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38 hours = minutes // 60
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39 minutes -= hours * 60
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40 if hours < 30:
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41 # i18n: format X hours and YY minutes as "XhYYm"
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42 return _("%dh%02dm") % (hours, minutes)
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43 # we're going to ignore minutes in this case
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44 hours += 1
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45 days = hours // 24
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46 hours -= days * 24
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47 if days < 15:
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48 # i18n: format X days and YY hours as "XdYYh"
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49 return _("%dd%02dh") % (days, hours)
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50 # we're going to ignore hours in this case
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51 days += 1
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52 weeks = days // 7
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53 days -= weeks * 7
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54 if weeks < 55:
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55 # i18n: format X weeks and YY days as "XwYYd"
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56 return _("%dw%02dd") % (weeks, days)
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57 # we're going to ignore days and treat a year as 52 weeks
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58 weeks += 1
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59 years = weeks // 52
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60 weeks -= years * 52
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61 # i18n: format X years and YY weeks as "XyYYw"
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62 return _("%dy%02dw") % (years, weeks)
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63
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64 # file_write() and file_flush() of Python 2 do not restart on EINTR if
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65 # the file is attached to a "slow" device (e.g. a terminal) and raise
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66 # IOError. We cannot know how many bytes would be written by file_write(),
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67 # but a progress text is known to be short enough to be written by a
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68 # single write() syscall, so we can just retry file_write() with the whole
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69 # text. (issue5532)
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70 #
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71 # This should be a short-term workaround. We'll need to fix every occurrence
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72 # of write() to a terminal or pipe.
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73 def _eintrretry(func, *args):
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74 while True:
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75 try:
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76 return func(*args)
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77 except IOError as err:
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78 if err.errno == errno.EINTR:
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79 continue
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80 raise
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81
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82 class progbar(object):
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83 def __init__(self, ui):
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84 self.ui = ui
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85 self._refreshlock = threading.Lock()
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86 self.resetstate()
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87
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88 def resetstate(self):
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89 self.topics = []
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90 self.topicstates = {}
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91 self.starttimes = {}
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92 self.startvals = {}
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93 self.printed = False
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94 self.lastprint = time.time() + float(self.ui.config(
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95 'progress', 'delay'))
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96 self.curtopic = None
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97 self.lasttopic = None
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98 self.indetcount = 0
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99 self.refresh = float(self.ui.config(
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100 'progress', 'refresh'))
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101 self.changedelay = max(3 * self.refresh,
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102 float(self.ui.config(
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103 'progress', 'changedelay')))
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104 self.order = self.ui.configlist('progress', 'format')
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105 self.estimateinterval = self.ui.configwith(
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106 float, 'progress', 'estimateinterval')
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107
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108 def show(self, now, topic, pos, item, unit, total):
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109 if not shouldprint(self.ui):
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110 return
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111 termwidth = self.width()
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112 self.printed = True
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113 head = ''
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114 needprogress = False
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115 tail = ''
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116 for indicator in self.order:
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117 add = ''
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118 if indicator == 'topic':
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119 add = topic
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120 elif indicator == 'number':
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parents:
diff changeset
121 if total:
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Yuya Nishihara <yuya@tcha.org>
parents: 36152
diff changeset
122 add = b'%*d/%d' % (len(str(total)), pos, total)
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123 else:
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2831d918e1b4 py3: convert known-int values to bytes using %d
Augie Fackler <augie@google.com>
parents: 36202
diff changeset
124 add = b'%d' % pos
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125 elif indicator.startswith('item') and item:
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diff changeset
126 slice = 'end'
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diff changeset
127 if '-' in indicator:
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diff changeset
128 wid = int(indicator.split('-')[1])
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129 elif '+' in indicator:
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130 slice = 'beginning'
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diff changeset
131 wid = int(indicator.split('+')[1])
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132 else:
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diff changeset
133 wid = 20
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134 if slice == 'end':
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135 add = encoding.trim(item, wid, leftside=True)
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136 else:
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diff changeset
137 add = encoding.trim(item, wid)
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diff changeset
138 add += (wid - encoding.colwidth(add)) * ' '
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139 elif indicator == 'bar':
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140 add = ''
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
141 needprogress = True
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parents:
diff changeset
142 elif indicator == 'unit' and unit:
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diff changeset
143 add = unit
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parents:
diff changeset
144 elif indicator == 'estimate':
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parents:
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145 add = self.estimate(topic, pos, total, now)
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parents:
diff changeset
146 elif indicator == 'speed':
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147 add = self.speed(topic, pos, unit, now)
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148 if not needprogress:
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parents:
diff changeset
149 head = spacejoin(head, add)
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150 else:
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parents:
diff changeset
151 tail = spacejoin(tail, add)
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diff changeset
152 if needprogress:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
153 used = 0
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parents:
diff changeset
154 if head:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
155 used += encoding.colwidth(head) + 1
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parents:
diff changeset
156 if tail:
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parents:
diff changeset
157 used += encoding.colwidth(tail) + 1
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parents:
diff changeset
158 progwidth = termwidth - used - 3
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parents:
diff changeset
159 if total and pos <= total:
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parents:
diff changeset
160 amt = pos * progwidth // total
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parents:
diff changeset
161 bar = '=' * (amt - 1)
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parents:
diff changeset
162 if amt > 0:
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parents:
diff changeset
163 bar += '>'
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parents:
diff changeset
164 bar += ' ' * (progwidth - amt)
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diff changeset
165 else:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
166 progwidth -= 3
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
167 self.indetcount += 1
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parents:
diff changeset
168 # mod the count by twice the width so we can make the
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parents:
diff changeset
169 # cursor bounce between the right and left sides
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parents:
diff changeset
170 amt = self.indetcount % (2 * progwidth)
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parents:
diff changeset
171 amt -= progwidth
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parents:
diff changeset
172 bar = (' ' * int(progwidth - abs(amt)) + '<=>' +
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
173 ' ' * int(abs(amt)))
34486
a57c938e7ac8 style: never use a space before a colon or comma
Alex Gaynor <agaynor@mozilla.com>
parents: 34314
diff changeset
174 prog = ''.join(('[', bar, ']'))
25497
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parents:
diff changeset
175 out = spacejoin(head, prog, tail)
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parents:
diff changeset
176 else:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
177 out = spacejoin(head, tail)
32048
c3ef33fd0058 progress: extract stubs to restart ferr.flush() and .write() on EINTR
Yuya Nishihara <yuya@tcha.org>
parents: 30324
diff changeset
178 self._writeerr('\r' + encoding.trim(out, termwidth))
25497
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179 self.lasttopic = topic
32048
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parents: 30324
diff changeset
180 self._flusherr()
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181
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diff changeset
182 def clear(self):
29089
222b8170d69e progress: stop excessive clearing (issue4801)
Matt Mackall <mpm@selenic.com>
parents: 28171
diff changeset
183 if not self.printed or not self.lastprint or not shouldprint(self.ui):
25497
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184 return
32048
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diff changeset
185 self._writeerr('\r%s\r' % (' ' * self.width()))
26407
72bccc1f26b1 progress: force a repaint of a printed progress bar after a clear()
Augie Fackler <augie@google.com>
parents: 25968
diff changeset
186 if self.printed:
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Augie Fackler <augie@google.com>
parents: 25968
diff changeset
187 # force immediate re-paint of progress bar
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parents: 25968
diff changeset
188 self.lastprint = 0
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189
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190 def complete(self):
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diff changeset
191 if not shouldprint(self.ui):
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parents:
diff changeset
192 return
33249
391da1416038 configitems: register the 'progress.clear-complete' config
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 32049
diff changeset
193 if self.ui.configbool('progress', 'clear-complete'):
25497
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diff changeset
194 self.clear()
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diff changeset
195 else:
32048
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parents: 30324
diff changeset
196 self._writeerr('\n')
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diff changeset
197 self._flusherr()
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diff changeset
198
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Yuya Nishihara <yuya@tcha.org>
parents: 30324
diff changeset
199 def _flusherr(self):
32049
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Yuya Nishihara <yuya@tcha.org>
parents: 32048
diff changeset
200 _eintrretry(self.ui.ferr.flush)
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diff changeset
201
32048
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diff changeset
202 def _writeerr(self, msg):
32049
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Yuya Nishihara <yuya@tcha.org>
parents: 32048
diff changeset
203 _eintrretry(self.ui.ferr.write, msg)
32048
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Yuya Nishihara <yuya@tcha.org>
parents: 30324
diff changeset
204
25497
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diff changeset
205 def width(self):
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parents:
diff changeset
206 tw = self.ui.termwidth()
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parents:
diff changeset
207 return min(int(self.ui.config('progress', 'width', default=tw)), tw)
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parents:
diff changeset
208
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parents:
diff changeset
209 def estimate(self, topic, pos, total, now):
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parents:
diff changeset
210 if total is None:
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parents:
diff changeset
211 return ''
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
212 initialpos = self.startvals[topic]
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parents:
diff changeset
213 target = total - initialpos
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parents:
diff changeset
214 delta = pos - initialpos
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parents:
diff changeset
215 if delta > 0:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
216 elapsed = now - self.starttimes[topic]
34313
f428c347d32b progress: remove progress.estimate config
Jun Wu <quark@fb.com>
parents: 33499
diff changeset
217 seconds = (elapsed * (target - delta)) // delta + 1
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parents: 33499
diff changeset
218 return fmtremaining(seconds)
25497
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parents:
diff changeset
219 return ''
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parents:
diff changeset
220
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
221 def speed(self, topic, pos, unit, now):
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parents:
diff changeset
222 initialpos = self.startvals[topic]
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parents:
diff changeset
223 delta = pos - initialpos
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parents:
diff changeset
224 elapsed = now - self.starttimes[topic]
34313
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Jun Wu <quark@fb.com>
parents: 33499
diff changeset
225 if elapsed > 0:
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parents:
diff changeset
226 return _('%d %s/sec') % (delta / elapsed, unit)
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parents:
diff changeset
227 return ''
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parents:
diff changeset
228
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
229 def _oktoprint(self, now):
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parents:
diff changeset
230 '''Check if conditions are met to print - e.g. changedelay elapsed'''
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
231 if (self.lasttopic is None # first time we printed
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
232 # not a topic change
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
233 or self.curtopic == self.lasttopic
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parents:
diff changeset
234 # it's been long enough we should print anyway
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parents:
diff changeset
235 or now - self.lastprint >= self.changedelay):
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
236 return True
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
237 else:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
238 return False
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
239
34314
a667f0ca1d5f progress: make ETA only consider progress made in the last minute
Jun Wu <quark@fb.com>
parents: 34313
diff changeset
240 def _calibrateestimate(self, topic, now, pos):
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Jun Wu <quark@fb.com>
parents: 34313
diff changeset
241 '''Adjust starttimes and startvals for topic so ETA works better
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Jun Wu <quark@fb.com>
parents: 34313
diff changeset
242
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243 If progress is non-linear (ex. get much slower in the last minute),
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244 it's more friendly to only use a recent time span for ETA and speed
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245 calculation.
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246
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247 [======================================> ]
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248 ^^^^^^^
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249 estimateinterval, only use this for estimation
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250 '''
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251 interval = self.estimateinterval
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252 if interval <= 0:
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253 return
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254 elapsed = now - self.starttimes[topic]
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255 if elapsed > interval:
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256 delta = pos - self.startvals[topic]
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257 newdelta = delta * interval / elapsed
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258 # If a stall happens temporarily, ETA could change dramatically
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259 # frequently. This is to avoid such dramatical change and make ETA
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260 # smoother.
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261 if newdelta < 0.1:
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262 return
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263 self.startvals[topic] = pos - newdelta
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264 self.starttimes[topic] = now - interval
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265
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266 def progress(self, topic, pos, item='', unit='', total=None):
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267 if pos is None:
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268 self.closetopic(topic)
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269 return
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270 now = time.time()
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271 with self._refreshlock:
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272 if topic not in self.topics:
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273 self.starttimes[topic] = now
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274 self.startvals[topic] = pos
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275 self.topics.append(topic)
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276 self.topicstates[topic] = pos, item, unit, total
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277 self.curtopic = topic
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278 self._calibrateestimate(topic, now, pos)
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279 if now - self.lastprint >= self.refresh and self.topics:
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280 if self._oktoprint(now):
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281 self.lastprint = now
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282 self.show(now, topic, *self.topicstates[topic])
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283
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284 def closetopic(self, topic):
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285 with self._refreshlock:
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286 self.starttimes.pop(topic, None)
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287 self.startvals.pop(topic, None)
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288 self.topicstates.pop(topic, None)
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289 # reset the progress bar if this is the outermost topic
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290 if self.topics and self.topics[0] == topic and self.printed:
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291 self.complete()
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292 self.resetstate()
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293 # truncate the list of topics assuming all topics within
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294 # this one are also closed
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295 if topic in self.topics:
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296 self.topics = self.topics[:self.topics.index(topic)]
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297 # reset the last topic to the one we just unwound to,
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298 # so that higher-level topics will be stickier than
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299 # lower-level topics
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300 if self.topics:
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301 self.lasttopic = self.topics[-1]
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302 else:
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303 self.lasttopic = None