ui.py

Mon, 22 Jan 2018 19:14:47 +0000

author
Tuomo Valkonen <tuomov@iki.fi>
date
Mon, 22 Jan 2018 19:14:47 +0000
changeset 52
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parent 51
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child 55
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permissions
-rw-r--r--

Have to clean up logger handlers in same cases to avoid duplicate messages

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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 backup
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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 traynames={
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18 backup.INACTIVE: 'B.',
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19 backup.SCHEDULED: 'B.',
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20 backup.ACTIVE: 'B!',
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21 backup.BUSY: 'B⦙',
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22 backup.OFFLINE: 'B⦙',
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23 backup.ERRORS: 'B?'
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24 }
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26 statestring={
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27 backup.INACTIVE: 'inactive',
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28 backup.SCHEDULED: 'scheduled',
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29 backup.ACTIVE: 'active',
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30 backup.BUSY: 'busy',
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31 backup.OFFLINE: 'offline',
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32 backup.ERRORS: 'errors'
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33 }
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34
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35 # Refresh the menu at most once a second to reduce flicker
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36 refresh_interval=1.0
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37
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38 # Workaround to rumps brokenness;
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39 # see https://github.com/jaredks/rumps/issues/59
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40 def notification_workaround(title, subtitle, message):
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41 try:
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42 NSDictionary = objc.lookUpClass("NSDictionary")
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43 d=NSDictionary()
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44
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45 rumps.notification(title, subtitle, message, data=d)
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46 except Exception as err:
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47 logger.exception("Failed 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=status['state']
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72 detail=''
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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 detail=''
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80 else:
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81 diff=datetime.timedelta(seconds=when-now)
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82 if diff.days>0:
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83 whenday=datetime.date.fromtimestamp(when)
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84 whenstr='on %s' % whenday.isoformat()
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85 else:
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86 twhen=time.localtime(when)
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87 if twhen.tm_sec>30:
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88 # Round up minute display to avoid user confusion
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89 twhen=time.localtime(when+30)
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90 whenstr='at %02d:%02d' % (twhen.tm_hour, twhen.tm_min)
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91
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92 detail=''
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93 if state>=backup.BUSY and state in statestring:
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94 detail=statestring[state] + '; '
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95 if status['detail']!='normal':
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96 detail=detail+status['detail']+' '
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97 title="%s (%s%s %s)" % (status['name'], detail, status['operation'], whenstr)
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98 elif status['type']=='current':
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99 # Operation running
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100 progress=''
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101 if 'progress_current' in status and 'progress_total' in status:
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102 progress=' %d%%' % (status['progress_current']/status['progress_total'])
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103 elif 'original_size' in status and 'deduplicated_size' in status:
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104 progress=' %s→%s' % (humanbytes(status['original_size']),
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105 humanbytes(status['deduplicated_size']))
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106 title="%s (running: %s%s)" % (status['name'], status['operation'], progress)
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107 else: # status['type']=='nothing':
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108 # Should be unscheduled, nothing running
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109 detail=''
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110 if state>=backup.BUSY and state in statestring:
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111 detail=' (' + statestring[state] + ')'
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112 title=status['name'] + detail
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113
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114 return title, state
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115
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116 class BorgendTray(rumps.App):
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117 def __init__(self, backups):
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118 self.lock=Lock()
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119 self.backups=backups
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120 self.statuses=[None]*len(backups)
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121
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122 with self.lock:
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123 # Initialise reporting callbacks and local status copy
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124 # (since rumps doesn't seem to be able to update menu items
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125 # without rebuilding the whole menu, and we don't want to lock
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126 # when calling Backup.status(), especially as we will be called
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127 # from Backup reporting its status, we keep a copy to allow
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128 # rebuilding the entire menu
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129 for index in range(len(backups)):
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130 b=backups[index]
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131 # Python closures suck dog's balls; hence the _index=index hack
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132 # See also http://math.andrej.com/2009/04/09/pythons-lambda-is-broken/
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133 cb=(lambda obj, status, _index=index, errors=None:
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134 self.__status_callback(obj, _index, status, errors))
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135 b.set_status_update_callback(cb)
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136 self.statuses[index]=b.status()
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137
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138 menu, state=self.__rebuild_menu()
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139
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140 self.refresh_timer=None
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141
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142 super().__init__(traynames[state], menu=menu, quit_button=None)
10
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143
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144 def __rebuild_menu(self):
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145 menu=[]
45
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146 state=backup.INACTIVE
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147 for index in range(len(self.backups)):
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148 b=self.backups[index]
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149 title, this_state=make_title(self.statuses[index])
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150 # Python closures suck dog's balls...
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151 # first and the last program I write in Python until somebody
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152 # fixes this brain damage
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153 cbm=lambda sender, _b=b: self.__menu_select_backup(sender, _b)
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154 item=rumps.MenuItem(title, callback=cbm)
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155 if this_state==backup.SCHEDULED:
38
085a635f23f5 Improved error indicators
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diff changeset
156 item.state=1
45
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157 elif this_state>=backup.BUSY:
38
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158 item.state=-1
10
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159 menu.append(item)
45
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160 state=backup.combine_state(state, this_state)
10
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161
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162 menu_log=rumps.MenuItem("Show log", callback=lambda _: showlog())
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163 menu.append(menu_log)
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164
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165 if not settings['no_quit_menu_entry']:
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166 menu_quit=rumps.MenuItem("Quit...", callback=lambda _: self.quit())
30
3dd525652dc8 Added no_quit_menu_entry option
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167 menu.append(menu_quit)
10
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168
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169 return menu, state
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170
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171 def refresh_ui(self):
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172 with self.lock:
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173 self.refresh_timer=None
31
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174 logger.debug('Rebuilding menu')
28
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175 menu, active=self.__rebuild_menu()
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176 self.menu.clear()
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177 self.menu.update(menu)
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178 self.title=traynames[active]
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179
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180 def __status_callback(self, obj, index, status, errorlog):
50
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181 logger.debug('Status callback: %s' % str(status))
21
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182
10
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183 with self.lock:
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184 self.statuses[index]=status
27
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185 if self.refresh_timer==None:
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186 self.refresh_timer=Timer(refresh_interval, self.refresh_ui)
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187 self.refresh_timer.start()
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188
21
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189 if errorlog:
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190 if 'msgid' not in errorlog or not isinstance(errorlog['msgid'], str):
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191 msgid='UnknownError'
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192 else:
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193 msgid=errorlog['msgid']
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diff changeset
194
32
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195 logger.debug("Opening notification for error %s '%s'",
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196 msgid, errorlog['message'])
21
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197
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198 notification_workaround(borgend.appname_stylised,
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diff changeset
199 msgid, errorlog['message'])
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diff changeset
200
46
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diff changeset
201 def quit(self):
34
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202 logging.shutdown()
28
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diff changeset
203 rumps.quit_application()
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204
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205 def __menu_select_backup(self, sender, b):
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diff changeset
206 #sender.state=not sender.state
31
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diff changeset
207 logger.debug("Manually backup '%s'", b.name)
32
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diff changeset
208 try:
49
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diff changeset
209 b.create()
32
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diff changeset
210 except Exception as err:
50
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diff changeset
211 logger.exception("Failure to initialise backup")
34
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diff changeset
212 notification_workaround(borgend.appname_stylised,
33
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diff changeset
213 err.__class__.__name__, str(err))
28
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diff changeset
214
42
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215 #
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216 # Log window
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217 #
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218
42
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diff changeset
219 logwindow=[None]
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diff changeset
220 logwindow_lock=Lock()
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221
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222 def showlog():
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diff changeset
223 try:
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diff changeset
224 w=None
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diff changeset
225 with logwindow_lock:
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diff changeset
226 if not logwindow[0]:
34
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diff changeset
227 lines=borgend.fifolog.formatAll()
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diff changeset
228 msg="\n".join(lines[0:])
42
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diff changeset
229 w=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 logwindow[0]=w
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diff changeset
234 if w:
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
235 try:
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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diff changeset
236 w.run()
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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diff changeset
237 finally:
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
238 with logwindow_lock:
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
239 logwindow[0]=None
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parents: 40
diff changeset
240 except Exception as err:
50
2d8947351727 Logging improvements
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parents: 49
diff changeset
241 logger.exception("Failed to display log")
34
9fce700d42de Log window and other logging improvements
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diff changeset
242
42
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
243 #
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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244 # Notification click response => show log window
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diff changeset
245 #
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
246
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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parents: 40
diff changeset
247 @rumps.notifications
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diff changeset
248 def notification_center(_):
00accd11978b Moved logwindow dispay out of BorgendTray, and made notification_center
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diff changeset
249 showlog()
50
2d8947351727 Logging improvements
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parents: 49
diff changeset
250

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