ui.py

Sun, 21 Jan 2018 22:01:57 +0000

author
Tuomo Valkonen <tuomov@iki.fi>
date
Sun, 21 Jan 2018 22:01:57 +0000
changeset 41
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parent 40
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child 42
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permissions
-rw-r--r--

--no-tray command line option for running on non-MacOS systems

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1 #
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2 # Borgend MacOS UI
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3 #
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4
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5 import rumps
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6 import time
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7 import datetime
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8 import logging
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9 import borgend
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10 import utils
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11 from threading import Lock, Timer
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12 from config import settings
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13 import objc
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14
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15 logger=borgend.logger.getChild(__name__)
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17 INACTIVE=0
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18 SCHEDULED_OK=1
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19 ACTIVE=2
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20 OFFLINE=3
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21 ERRORS=4
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22
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23 traynames={
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24 INACTIVE: 'B.',
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25 SCHEDULED_OK: 'B.',
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26 ACTIVE: 'B!',
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27 OFFLINE: 'B⦙',
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28 ERRORS: 'B?'
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29 }
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30
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31 # Refresh the menu at most once a second to reduce flicker
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32 refresh_interval=1.0
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33
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34 def combine_state(state1, state2):
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35 return max(state1, state2)
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36
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37 # Workaround to rumps brokenness;
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38 # see https://github.com/jaredks/rumps/issues/59
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39 def notification_workaround(title, subtitle, message):
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40 try:
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41 NSDictionary = objc.lookUpClass("NSDictionary")
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42 d=NSDictionary()
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43
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44 rumps.notification(title, subtitle, message, data=d)
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45 except Exception as err:
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46 utils.log_exception(logger, err,
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47 detail='Unable to display notification')
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48
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49 # Based on code snatched from
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50 # https://stackoverflow.com/questions/12523586/python-format-size-application-converting-b-to-kb-mb-gb-tb/37423778
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51 def humanbytes(B):
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52 'Return the given bytes as a human friendly KB, MB, GB, or TB string'
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53 B = float(B)
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54 KB = float(1024)
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55 MB = float(KB ** 2) # 1,048,576
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56 GB = float(KB ** 3) # 1,073,741,824
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57 TB = float(KB ** 4) # 1,099,511,627,776
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58
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59 if B < KB:
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60 return '{0}B'.format(B)
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61 elif KB <= B < MB:
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62 return '{0:.2f}KB'.format(B/KB)
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63 elif MB <= B < GB:
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64 return '{0:.2f}MB'.format(B/MB)
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65 elif GB <= B < TB:
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66 return '{0:.2f}GB'.format(B/GB)
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67 elif TB <= B:
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68 return '{0:.2f}TB'.format(B/TB)
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69
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70 def make_title(status):
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71 state=INACTIVE
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72
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73 if status['type']=='scheduled':
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74 # Operation scheduled
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75 when=status['when']
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76 now=time.time()
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77 if when<now:
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78 whenstr='overdue'
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79 else:
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80 diff=datetime.timedelta(seconds=when-now)
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81 if diff.days>0:
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82 whenday=datetime.date.fromtimestamp(when)
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83 whenstr='on %s' % whenday.isoformat()
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84 else:
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85 twhen=time.localtime(when)
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86 if twhen.tm_sec>30:
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87 # Round up minute display to avoid user confusion
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88 twhen=time.localtime(when+30)
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89 whenstr='at %02d:%02d' % (twhen.tm_hour, twhen.tm_min)
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90
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91 if status['detail']=='normal':
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92 state=SCHEDULED_OK
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93 detail=''
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94 else:
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95 if status['detail']=='retry':
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96 state=ERRORS
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97 detail=status['detail']+' '
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98 title="%s (%s%s %s)" % (status['name'], detail, status['operation'], whenstr)
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99 elif status['type']=='current':
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100 # Operation running
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101 progress=''
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102 if 'progress_current' in status and 'progress_total' in status:
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103 progress=' %d%%' % (status['progress_current']/status['progress_total'])
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104 elif 'original_size' in status and 'deduplicated_size' in status:
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105 progress=' %s→%s' % (humanbytes(status['original_size']),
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106 humanbytes(status['deduplicated_size']))
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107 title="%s (running: %s%s)" % (status['name'], status['operation'], progress)
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108 state=ACTIVE
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109 else: # status['type']=='nothing':
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110 # Should be unscheduled, nothing running
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111 title=status['name']
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112 if status['errors']:
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113 title=title + " (errors)"
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114
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115 if status['errors']:
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116 state=ERRORS
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117
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118 return title, state
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119
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120 class BorgendTray(rumps.App):
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121 def __init__(self, backups):
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122 self.lock=Lock()
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123 self.backups=backups
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124 self.statuses=[None]*len(backups)
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125
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126 with self.lock:
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127 # Initialise reporting callbacks and local status copy
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128 # (since rumps doesn't seem to be able to update menu items
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129 # without rebuilding the whole menu, and we don't want to lock
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130 # when calling Backup.status(), especially as we will be called
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131 # from Backup reporting its status, we keep a copy to allow
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132 # rebuilding the entire menu
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133 for index in range(len(backups)):
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134 b=backups[index]
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135 # Python closures suck dog's balls; hence the _index=index hack
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136 # See also http://math.andrej.com/2009/04/09/pythons-lambda-is-broken/
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137 cb=(lambda obj, status, _index=index, errors=None:
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138 self.__status_callback(obj, _index, status, errors))
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139 b.set_status_update_callback(cb)
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140 self.statuses[index]=b.status()
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141
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142 menu, state=self.__rebuild_menu()
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143
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144 self.refresh_timer=None
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145 self.logwindow=None
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146
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147 super().__init__(traynames[state], menu=menu, quit_button=None)
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148
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149 def __rebuild_menu(self):
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150 menu=[]
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151 state=INACTIVE
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152 for index in range(len(self.backups)):
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153 b=self.backups[index]
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154 title, this_state=make_title(self.statuses[index])
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155 # Python closures suck dog's balls...
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156 # first and the last program I write in Python until somebody
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157 # fixes this brain damage
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158 cbm=lambda sender, _b=b: self.__menu_select_backup(sender, _b)
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159 item=rumps.MenuItem(title, callback=cbm)
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160 if this_state==SCHEDULED_OK:
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161 item.state=1
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162 elif this_state>=OFFLINE:
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163 item.state=-1
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164 menu.append(item)
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165 state=combine_state(state, this_state)
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166
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167 menu_log=rumps.MenuItem("Show log", callback=self.showlog)
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168 menu.append(menu_log)
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169
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170 if not settings['no_quit_menu_entry']:
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171 menu_quit=rumps.MenuItem("Quit...", callback=self.my_quit)
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172 menu.append(menu_quit)
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173
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174 return menu, state
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175
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176 def refresh_ui(self):
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177 with self.lock:
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178 self.refresh_timer=None
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179 logger.debug('Rebuilding menu')
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180 menu, active=self.__rebuild_menu()
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181 self.menu.clear()
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182 self.menu.update(menu)
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183 self.title=traynames[active]
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184
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185 def __status_callback(self, obj, index, status, errorlog):
31
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186 logger.debug('Status callbackup %s' % str(status))
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187
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188 with self.lock:
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189 self.statuses[index]=status
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190 if self.refresh_timer==None:
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191 self.refresh_timer=Timer(refresh_interval, self.refresh_ui)
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192 self.refresh_timer.start()
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193
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194 if errorlog:
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195 if 'msgid' not in errorlog or not isinstance(errorlog['msgid'], str):
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196 msgid='UnknownError'
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197 else:
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198 msgid=errorlog['msgid']
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199
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200 logger.debug("Opening notification for error %s '%s'",
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201 msgid, errorlog['message'])
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diff changeset
202
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203 notification_workaround(borgend.appname_stylised,
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204 msgid, errorlog['message'])
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205
28
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206 def my_quit(self, _):
34
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207 logging.shutdown()
28
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diff changeset
208 rumps.quit_application()
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209
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210 def __menu_select_backup(self, sender, b):
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211 #sender.state=not sender.state
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212 logger.debug("Manually backup '%s'", b.name)
32
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diff changeset
213 try:
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214 b.create(None)
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diff changeset
215 except Exception as err:
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diff changeset
216 utils.log_exception(logger, err)
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diff changeset
217 notification_workaround(borgend.appname_stylised,
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diff changeset
218 err.__class__.__name__, str(err))
28
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diff changeset
219
21
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diff changeset
220 @rumps.notifications
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221 def notification_center(data):
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diff changeset
222 pass
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diff changeset
223
34
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224 def showlog(self, _):
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225 try:
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diff changeset
226 if not self.logwindow:
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diff changeset
227 lines=borgend.fifolog.formatAll()
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228 msg="\n".join(lines[0:])
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diff changeset
229 self.logwindow=rumps.Window(title=borgend.appname_stylised+' log',
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diff changeset
230 default_text=msg,
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diff changeset
231 ok='Close',
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diff changeset
232 dimensions=(640,320))
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diff changeset
233 self.logwindow.run()
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234 # Does not return until closed
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diff changeset
235 self.logwindow=None
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diff changeset
236 except Exception as err:
40
cfbeeec8cb82 Improved exception reporting etc.
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diff changeset
237 utils.log_exception(logger, err)
34
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diff changeset
238

mercurial