annotate web/log.py @ 503:d96042bce9d3

- fermentation heat prediction kind of works? - fix watch
author Matt Johnston <matt@ucc.asn.au>
date Mon, 21 Apr 2014 21:41:44 +0800
parents 88204c0db5fa
children 3f403e22c2e3
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1 # -*- coding: utf-8 -*-
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2 #:vim:et:ts=4:sts=4:sw=4:
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3 import rrdtool
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4 import os
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5 import os.path
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6 import sys
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7 import glob
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8 import hashlib
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9 import tempfile
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10 import time
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11 import syslog
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12 import sqlite3
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13 import traceback
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14 import datetime
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15 import struct
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16 import binascii
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17 import json
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18 import subprocess
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19 from colorsys import hls_to_rgb
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20
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21 import config
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22 import atomicfile
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23
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24 def sensor_rrd_path(s):
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25 return '%s/sensor_%s.rrd' % (config.DATA_PATH, str(s))
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26
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27 # returns (path, sensor_name) tuples
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28 def all_sensors():
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29 return [(r, os.path.basename(r[:-4]))
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30 for r in glob.glob('%s/*.rrd' % config.DATA_PATH)]
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31
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32 def create_rrd(sensor_id):
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33 # start date of 10 seconds into 1970 is used so that we can
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34 # update with prior values straight away.
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35 if 'voltage' in sensor_id:
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36 args = [
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37 '--step', '3600',
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38 'DS:temp:GAUGE:7200:1:10',
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39 'RRA:AVERAGE:0.5:1:87600']
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40 elif 'fridge_on' in sensor_id:
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41 args = [
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42 '--step', '300',
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43 'DS:temp:GAUGE:600:-100:500',
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44 'RRA:LAST:0.5:1:1051200']
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45 else:
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46 args = [
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47 '--step', '300',
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48 'DS:temp:GAUGE:600:-100:500',
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49 'RRA:AVERAGE:0.5:1:1051200']
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50
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51 print>>sys.stderr, sensor_rrd_path(sensor_id)
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52
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53 rrdtool.create(sensor_rrd_path(sensor_id),
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54 '--start', 'now-60d',
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55 *args)
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56
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57 # stolen from viewmtn, stolen from monotone-viz
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58 def colour_from_string(str):
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59 def f(off):
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60 return ord(hashval[off]) / 256.0
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61 hashval = hashlib.sha1(str).digest()
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62 hue = f(5)
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63 li = f(1) * 0.15 + 0.55
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64 sat = f(2) * 0.5 + .5
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65 return ''.join(["%.2x" % int(x * 256) for x in hls_to_rgb(hue, li, sat)])
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66
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67 def graph_png(start, length):
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68 os.environ['MATT_PNG_BODGE_COMPRESS'] = '4'
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69 os.environ['MATT_PNG_BODGE_FILTER'] = 'paeth'
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70 rrds = all_sensors()
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71
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72 graph_args = []
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73 have_volts = False
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74
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75 ## volts = temp * volts_div + volts_shift
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76 #volts_div = 10
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77 #volts_shift = 2
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78 volts_div = 1
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79 volts_shift = 0
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80
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81 volts_mult = 1.0/volts_div
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82
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83 # (title, sensorline) pairs.
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84 sensor_lines = []
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85
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86 wort_sensor = None
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87 fridge_sensor = None
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88 for n, (rrdfile, sensor) in enumerate(rrds):
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89 unit = None
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90 if 'avrtemp' in sensor:
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91 continue
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92 if 'voltage' in sensor:
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93 have_volts = True
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94 vname = 'scalevolts'
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95 graph_args.append('DEF:%(vname)s=%(rrdfile)s:temp:AVERAGE:step=3600' % locals())
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96 unit = 'V'
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97 elif 'fridge_on' in sensor:
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98 vname = 'fridge_on'
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99 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:LAST' % locals())
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100 graph_args.append('CDEF:%(vname)s=raw%(vname)s,-0.2,*,3,+' % locals())
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101 else:
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102 vname = 'temp%d' % n
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103 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals())
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104 # limit max temp to 50
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105 graph_args.append('CDEF:%(vname)s=raw%(vname)s,38,GT,UNKN,raw%(vname)s,%(volts_mult)f,*,%(volts_shift)f,+,IF' % locals())
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106 unit = '<span face="Liberation Serif">ยบ</span>C'
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107
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108 format_last_value = None
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109 if unit:
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110 try:
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111 last_value = float(rrdtool.info(rrdfile)['ds[temp].last_ds'])
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112 format_last_value = ('%f' % last_value).rstrip('0').rstrip('.') + unit
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113 except ValueError:
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114 pass
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115 width = config.LINE_WIDTH
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116 legend = config.SENSOR_NAMES.get(sensor, sensor)
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117 colour = config.SENSOR_COLOURS.get(legend, colour_from_string(sensor))
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118 if format_last_value:
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119 print_legend = '%s (%s)' % (legend, format_last_value)
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120 else:
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121 print_legend = legend
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122 sensor_lines.append( (legend, 'LINE%(width)f:%(vname)s#%(colour)s:%(print_legend)s' % locals()) )
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123 if legend == 'Wort':
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124 wort_sensor = vname
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125 elif legend == 'Fridge':
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126 fridge_sensor = vname
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127
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128 sensor_lines.sort(key = lambda (legend, line): "Wort" in legend)
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129
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130 graph_args += (line for (legend, line) in sensor_lines)
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131
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132 print>>sys.stderr, '\n'.join(graph_args)
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133
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134 # calculated bits
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135 colour = '000000'
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136 print_legend = 'Heat'
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137 graph_args.append('CDEF:wortdel=%(wort_sensor)s,PREV(%(wort_sensor)s),-' % locals())
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138 graph_args.append('CDEF:tempdel=%(wort_sensor)s,%(fridge_sensor)s,-' % locals())
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139 graph_args.append('CDEF:fermheat=wortdel,80,*,tempdel,0.9,*,+' % locals())
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140 graph_args.append('CDEF:trendfermheat=fermheat,10800,TRENDNAN' % locals())
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141 graph_args.append('CDEF:limitfermheat=trendfermheat,5,+,11,MIN,2,MAX' % locals())
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142 graph_args.append('LINE0.5:limitfermheat#%(colour)s:%(print_legend)s' % locals())
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143
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144 end = int(start+length)
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145 start = int(start)
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146
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147 tempf = tempfile.NamedTemporaryFile()
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148 dateformat = '%H:%M:%S %Y-%m-%d'
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diff changeset
149 watermark = ("Now %s\t"
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parents: 369
diff changeset
150 "Start %s\t"
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parents: 369
diff changeset
151 "End %s" % (
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parents: 369
diff changeset
152 datetime.datetime.now().strftime(dateformat),
1f530c97c053 more graph fiddling
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parents: 369
diff changeset
153 datetime.datetime.fromtimestamp(start).strftime(dateformat),
1f530c97c053 more graph fiddling
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parents: 369
diff changeset
154 datetime.datetime.fromtimestamp(end).strftime(dateformat) ))
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parents: 369
diff changeset
155
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parents: 369
diff changeset
156 args = [tempf.name, '-s', str(start),
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diff changeset
157 '-e', str(end),
337
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parents: 335
diff changeset
158 '-w', str(config.GRAPH_WIDTH),
f575ef538f5d - Various fixes for web server, kind of works
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parents: 335
diff changeset
159 '-h', str(config.GRAPH_HEIGHT),
335
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parents: 334
diff changeset
160 '--slope-mode',
337
f575ef538f5d - Various fixes for web server, kind of works
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parents: 335
diff changeset
161 '--border', '0',
379
fed6738be1ab Get rid of axes labels, tidy html
Matt Johnston <matt@ucc.asn.au>
parents: 377
diff changeset
162 # '--vertical-label', 'Voltage',
464
c3926e7cfb0c LHS axis scaling easily changeable
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parents: 458
diff changeset
163 '--y-grid', '%(volts_mult)f:1' % locals(),
377
55710361804b swap the left and right scales, kind of clunky
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parents: 375
diff changeset
164 '--dynamic-labels',
362
8fea6144951b improve graphs
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parents: 355
diff changeset
165 '--grid-dash', '1:0',
383
a032051475fe ui tweaks
Matt Johnston <matt@ucc.asn.au>
parents: 381
diff changeset
166 '--zoom', str(config.ZOOM),
362
8fea6144951b improve graphs
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parents: 355
diff changeset
167 '--color', 'GRID#00000000',
8fea6144951b improve graphs
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parents: 355
diff changeset
168 '--color', 'MGRID#aaaaaa',
337
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parents: 335
diff changeset
169 '--color', 'BACK#ffffff',
373
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parents: 369
diff changeset
170 '--disable-rrdtool-tag',
384
abe8c530812e ui tweaks
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parents: 383
diff changeset
171 '--pango-markup',
373
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parents: 369
diff changeset
172 '--watermark', watermark,
337
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parents: 335
diff changeset
173 '--imgformat', 'PNG'] \
335
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parents: 334
diff changeset
174 + graph_args
373
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parents: 369
diff changeset
175 args += ['--font', 'DEFAULT:12:%s' % config.GRAPH_FONT]
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parents: 369
diff changeset
176 args += ['--font', 'WATERMARK:10:%s' % config.GRAPH_FONT]
367
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parents: 362
diff changeset
177 if have_volts:
464
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parents: 458
diff changeset
178 volts_shift_div = volts_div * volts_shift
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parents: 458
diff changeset
179 args += ['--right-axis', '%(volts_div)f:-%(volts_shift_div)f' % locals(),
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parents: 458
diff changeset
180 # '--right-axis-format', '%.0lf',
379
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parents: 377
diff changeset
181 # '--right-axis-label', 'Temperature'
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parents: 377
diff changeset
182 ]
367
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diff changeset
183
489
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diff changeset
184 #print>>sys.stderr, ' '.join("'%s'" % s for s in args)
335
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parents: 334
diff changeset
185 rrdtool.graph(*args)
410
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parents: 409
diff changeset
186 #return tempf
335
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diff changeset
187 return tempf.read()
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parents: 334
diff changeset
188
445
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diff changeset
189 def validate_value(m):
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parents: 436
diff changeset
190 if m == 85:
458
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parents: 445
diff changeset
191 return 'U'
445
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parents: 436
diff changeset
192 else:
458
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parents: 445
diff changeset
193 return '%f' % m
424
96bec5482294 avoid bad values
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parents: 410
diff changeset
194
445
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parents: 436
diff changeset
195 def sensor_update(sensor_id, measurements):
333
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parents:
diff changeset
196 try:
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parents:
diff changeset
197 open(sensor_rrd_path(sensor_id))
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parents:
diff changeset
198 except IOError, e:
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parents:
diff changeset
199 create_rrd(sensor_id)
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parents:
diff changeset
200
344
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parents: 339
diff changeset
201 if measurements:
445
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parents: 436
diff changeset
202 values = ['%d:%s' % (t, validate_value(m)) for (t, m) in measurements]
333
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parents:
diff changeset
203
344
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parents: 339
diff changeset
204 rrdfile = sensor_rrd_path(sensor_id)
346
d6219df77c41 main.c:
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parents: 344
diff changeset
205 # XXX what to do here when it fails...
355
a1aa4176ca2c update values one at a time, ignore failure
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parents: 351
diff changeset
206 for v in values:
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parents: 351
diff changeset
207 try:
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parents: 351
diff changeset
208 rrdtool.update(rrdfile, v)
369
dc9d63e2fd7a UI tweaks
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parents: 367
diff changeset
209 except rrdtool.error, e:
410
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parents: 409
diff changeset
210 print>>sys.stderr, "Bad rrdtool update '%s': %s" % (v, str(e))
355
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parents: 351
diff changeset
211 traceback.print_exc(file=sys.stderr)
339
449272fc63a3 - Debug log file for server
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parents: 338
diff changeset
212
344
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parents: 339
diff changeset
213 # be paranoid
410
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parents: 409
diff changeset
214 #f = file(rrdfile)
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parents: 409
diff changeset
215 #os.fsync(f.fileno())
333
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parents:
diff changeset
216
409
1854abee5a59 add debug url
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parents: 407
diff changeset
217 def debug_file(mode='r'):
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parents: 407
diff changeset
218 return open('%s/debug.log' % config.DATA_PATH, mode)
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parents: 407
diff changeset
219
445
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parents: 436
diff changeset
220 def record_debug(params):
409
1854abee5a59 add debug url
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parents: 407
diff changeset
221 f = debug_file('a+')
344
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parents: 339
diff changeset
222 f.write('===== %s =====\n' % time.strftime('%a, %d %b %Y %H:%M:%S'))
458
94932e7051e5 Fix the updated json web code to work
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parents: 445
diff changeset
223 json.dump(params, f, sort_keys=True, indent=4)
339
449272fc63a3 - Debug log file for server
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parents: 338
diff changeset
224 f.flush()
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parents: 338
diff changeset
225 return f
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parents: 338
diff changeset
226
409
1854abee5a59 add debug url
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parents: 407
diff changeset
227 def tail_debug_log():
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parents: 407
diff changeset
228 f = debug_file()
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parents: 407
diff changeset
229 f.seek(0, 2)
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parents: 407
diff changeset
230 size = f.tell()
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parents: 407
diff changeset
231 f.seek(max(0, size-30000))
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parents: 407
diff changeset
232 return '\n'.join(l.strip() for l in f.readlines()[-400:])
1854abee5a59 add debug url
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parents: 407
diff changeset
233
381
83c83014e5e3 report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents: 379
diff changeset
234 def convert_ds18b20_12bit(reading):
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parents: 379
diff changeset
235 value = struct.unpack('>h', binascii.unhexlify(reading))[0]
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parents: 379
diff changeset
236 return value * 0.0625
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parents: 379
diff changeset
237
400
1137f315209b use the remainder of times
Matt Johnston <matt@ucc.asn.au>
parents: 394
diff changeset
238 def time_rem(name, entries):
1137f315209b use the remainder of times
Matt Johnston <matt@ucc.asn.au>
parents: 394
diff changeset
239 val_ticks = int(entries[name])
401
56c32a62b0cd fix rem calculation
Matt Johnston <matt@ucc.asn.au>
parents: 400
diff changeset
240 val_rem = int(entries['%s_rem' % name])
405
d9b78a1bdd1d fix off-by-one in remainder code
Matt Johnston <matt@ucc.asn.au>
parents: 401
diff changeset
241 tick_wake = int(entries['tick_wake']) + 1
400
1137f315209b use the remainder of times
Matt Johnston <matt@ucc.asn.au>
parents: 394
diff changeset
242 tick_secs = int(entries['tick_secs'])
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Matt Johnston <matt@ucc.asn.au>
parents: 394
diff changeset
243 return val_ticks + float(val_rem) * tick_secs / tick_wake
1137f315209b use the remainder of times
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parents: 394
diff changeset
244
489
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parents: 485
diff changeset
245 def write_current_params(current_params):
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parents: 485
diff changeset
246 out = {}
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parents: 485
diff changeset
247 out['params'] = current_params
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parents: 485
diff changeset
248 out['time'] = time.time()
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parents: 485
diff changeset
249 atomicfile.AtomicFile("%s/current_params.txt" % config.DATA_PATH).write(
46e327c00246 gets current params
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parents: 485
diff changeset
250 json.dumps(out, sort_keys=True, indent=4)+'\n')
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parents: 485
diff changeset
251
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parents: 485
diff changeset
252 def read_current_params():
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parents: 485
diff changeset
253 p = atomicfile.AtomicFile("%s/current_params.txt" % config.DATA_PATH).read()
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parents: 485
diff changeset
254 dat = json.loads(p)
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parents: 485
diff changeset
255 return dat['params']
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parents: 485
diff changeset
256
445
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parents: 436
diff changeset
257 def parse(params):
410
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parents: 409
diff changeset
258
910324f14fe4 - few more web tweaks. don't fsync, it's slow.
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parents: 409
diff changeset
259 start_time = time.time()
339
449272fc63a3 - Debug log file for server
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parents: 338
diff changeset
260
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
261 debugf = record_debug(params)
333
298e502fdcd4 Add some web server handling
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parents:
diff changeset
262
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
263 remote_now = params['now']
333
298e502fdcd4 Add some web server handling
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parents:
diff changeset
264
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
265 time_diff = start_time - remote_now
333
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parents:
diff changeset
266
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
267 # readings is [ ({sensorname: value, ...}, time), ... ]
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parents: 436
diff changeset
268 readings = params['readings']
333
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parents:
diff changeset
269
445
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parents: 436
diff changeset
270 # measurements is {sensorname: [(time, value), ...], ...}
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parents: 436
diff changeset
271 measurements = {}
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parents: 436
diff changeset
272 for rs, t in readings:
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parents: 436
diff changeset
273 real_t = t + time_diff
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parents: 436
diff changeset
274 for s, v in rs.iteritems():
458
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parents: 445
diff changeset
275 measurements.setdefault(s, []).append((real_t, v))
367
3db118498b97 sort out voltage logging
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parents: 362
diff changeset
276
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
277 # one-off measurements here
489
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parents: 485
diff changeset
278 current_params = params['current_params']
445
5b9dc87c988f update web to handle new style params
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parents: 436
diff changeset
279 measurements['fridge_on'] = [ (time.time(), params['fridge_on']) ]
489
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parents: 485
diff changeset
280 measurements['fridge_setpoint'] = [ (time.time(), current_params['fridge_setpoint']) ]
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parents: 485
diff changeset
281
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parents: 485
diff changeset
282 write_current_params(current_params)
425
eb685e1afcbb ui tweaks, add fridge values
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parents: 424
diff changeset
283
445
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parents: 436
diff changeset
284 for s, vs in measurements.iteritems():
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parents: 436
diff changeset
285 sensor_update(s, vs)
339
449272fc63a3 - Debug log file for server
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parents: 338
diff changeset
286
410
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parents: 409
diff changeset
287 timedelta = time.time() - start_time
458
94932e7051e5 Fix the updated json web code to work
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parents: 445
diff changeset
288 debugf.write("Updated sensors in %.2f secs\n" % timedelta)
339
449272fc63a3 - Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents: 338
diff changeset
289 debugf.flush()
482
9950ffa9a79b set nearly working
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
290
492
23c6cf01d237 working kinda
Matt Johnston <matt@ucc.asn.au>
parents: 489
diff changeset
291 _FIELD_DEFAULTS = {
496
88204c0db5fa Fridge setpoint as a float value
Matt Johnston <matt@ucc.asn.au>
parents: 492
diff changeset
292 'fridge_setpoint': 16.0,
492
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parents: 489
diff changeset
293 'fridge_difference': 0.2,
23c6cf01d237 working kinda
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parents: 489
diff changeset
294 'overshoot_delay': 720, # 12 minutes
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parents: 489
diff changeset
295 'overshoot_factor': 1, # ยบC
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parents: 489
diff changeset
296 'disabled': False,
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parents: 489
diff changeset
297 'nowort': True,
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parents: 489
diff changeset
298 'fridge_range_lower': 3,
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parents: 489
diff changeset
299 'fridge_range_upper': 3,
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parents: 489
diff changeset
300 }
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301
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302 def get_params():
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303
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304 r = []
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305
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306 vals = read_current_params()
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307
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308 for k, v in _FIELD_DEFAULTS.iteritems():
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309 n = {'name': k, 'value': type(v)(vals[k])}
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310 if type(v) is bool:
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311 kind = 'yesno'
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312 else:
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313 kind = 'number'
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314 if k == 'overshoot_delay':
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315 n['unit'] = ' sec'
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316 n['amount'] = 60
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317 n['digits'] = 0;
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318 else:
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319 n['unit'] = 'ยบ'
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320 n['amount'] = 0.1;
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321 n['digits'] = 1;
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322 n['kind'] = kind
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323 n['title'] = k
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324 r.append(n)
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325
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326 return json.dumps(r, sort_keys=True, indent=4)
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327
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328 def send_params(params):
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329 # 'templog_receive' is ignored due to authorized_keys
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330 # restrictions
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331 args = [config.SSH_PROG, '-i', config.SSH_KEYFILE,
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332 config.SSH_HOST, 'templog_receive']
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333 try:
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334 p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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335 (out, err) = p.communicate(json.dumps(params))
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336 except OSError, e:
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337 print>>sys.stderr, e
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338 return "Failed update"
485
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339
492
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340 if 'Good Update' in out:
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341 return True
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342
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343 print>>sys.stderr, "Strange return from update:"
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344 print>>sys.stderr, out
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345 return "Unexpected update result"
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346
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347 def same_type(a, b):
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348 ta = type(a)
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349 tb = type(b)
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350
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351 if ta == int:
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352 ta = float
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353 if tb == int:
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354 tb = float
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355
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356 return (ta == tb)
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357
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358 def update_params(p):
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359 params = {}
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360 for i in p:
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361 params[i['name']] = i['value']
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362
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363 if params.viewkeys() != _FIELD_DEFAULTS.viewkeys():
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364 diff = params.viewkeys() ^ _FIELD_DEFAULTS.viewkeys()
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365 return "Key mismatch, difference %s" % str(diff)
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366
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367 for k, v in params.items():
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368 if not same_type(v, _FIELD_DEFAULTS[k]):
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369 return "Bad type for %s, %s vs %s" % (k , type(v), type(_FIELD_DEFAULTS[k]))
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370
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371 ret = send_params(params)
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372 if ret is not True:
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373 return "Failed sending params: %s" % ret
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374
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375 return True
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376
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377
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378