1 | ''' |
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2 | Automatic verification that the ANUGA code runs the Patong simulation |
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3 | and produces the expected output. |
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4 | |
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5 | Required files are downloaded from the ANUGA servers if they are |
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6 | out of date or missing. |
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7 | ''' |
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8 | |
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9 | import sys |
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10 | import os |
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11 | import glob |
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12 | import unittest |
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13 | import time |
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14 | import shutil |
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15 | |
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16 | from anuga.utilities.system_tools import get_web_file, untar_file, file_length |
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17 | import anuga.utilities.log as log |
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18 | |
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19 | |
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20 | # sourceforge download mirror hosts (must end with '/') |
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21 | # try these in turn for each file |
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22 | ## NOTE: It would be more reliable if we could somehow 'poll' Sourceforge |
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23 | ## for a list of mirrors instead of hard-coding a list here. That may |
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24 | ## be too difficult, as we only get the chance to select a mirror when |
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25 | ## actually downloading a file. |
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26 | MIRRORS = ['http://transact.dl.sourceforge.net/sourceforge/anuga/', # au |
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27 | 'http://voxel.dl.sourceforge.net/sourceforge/anuga/', # us |
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28 | 'http://superb-west.dl.sourceforge.net/sourceforge/anuga/', # us |
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29 | 'http://jaist.dl.sourceforge.net/sourceforge/anuga/', # jp |
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30 | 'http://dfn.dl.sourceforge.net/sourceforge/anuga/' # de |
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31 | ] |
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32 | ##MIRRORS = ['http://10.7.64.243/patong_validation_data/'] # local linux box |
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33 | |
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34 | # URL to hand-get data files, if required |
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35 | DATA_FILES_URL = 'http://sourceforge.net/project/showfiles.php?group_id=172848' |
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36 | |
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37 | # sequence of mandatory local data objects |
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38 | Mandatory_Data_Objects = ('data.tgz',) |
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39 | |
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40 | # sequence of optional local data objects |
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41 | Optional_Data_Objects = ('patong.sww.TRIAL.tgz', |
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42 | 'patong.sww.BASIC.tgz', |
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43 | 'patong.sww.FINAL.tgz' |
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44 | ) |
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45 | |
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46 | # path to the local data directory |
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47 | Local_Data_Directory = 'local_data' |
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48 | |
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49 | # path to the remote data directory |
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50 | Remote_Data_Directory = 'remote_data' |
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51 | |
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52 | # name of stdout catch file for runmodel.py |
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53 | RUNMODEL_STDOUT = 'runmodel.stdout' |
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54 | |
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55 | # text at start of 'output dir' line in RUNMODEL_STDOUT file |
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56 | OUTDIR_PREFIX = 'Make directory ' |
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57 | |
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58 | # Name of SWW file produced by simulation |
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59 | OUTPUT_SWW = 'patong.sww' |
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60 | |
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61 | |
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62 | def setup(): |
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63 | '''Prepare for the validation run. |
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64 | |
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65 | Check we have required data set in project.py. |
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66 | ''' |
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67 | |
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68 | pass |
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69 | |
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70 | |
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71 | def refresh_local_data(data_objects, target_dir, mirrors): |
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72 | '''Update local data objects from the server. |
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73 | |
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74 | data_objects: list of files to refresh |
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75 | target_dir: directory in which to put files |
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76 | mirrors: list of mirror sites to use |
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77 | |
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78 | Each file has an associated *.digest file used to decide |
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79 | if the local file needs refreshing. |
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80 | |
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81 | Return True if all went well, else False. |
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82 | ''' |
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83 | |
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84 | # decision function to decide if a file contains HTML |
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85 | def is_html(filename): |
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86 | '''Decide if given file contains HTML.''' |
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87 | |
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88 | fd = open(filename) |
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89 | data = fd.read(1024) |
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90 | fd.close() |
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91 | |
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92 | if 'DOCTYPE' in data: |
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93 | return False |
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94 | |
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95 | return True |
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96 | |
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97 | |
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98 | # local function to get remote file from one of mirrors |
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99 | def get_remote_from_mirrors(remote, local, auth, mirrors): |
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100 | '''Get 'remote' from one of 'mirrors', put in 'local'.''' |
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101 | |
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102 | # Get a unique date+time string to defeat caching. The idea is to add |
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103 | # this to the end of any URL so proxy sees a different request. |
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104 | cache_defeat = '?' + time.strftime('%Y%m%d%H%M%S') |
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105 | |
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106 | # try each mirror when getting file |
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107 | for mirror in mirrors: |
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108 | log.info('Fetching remote file %s from mirror %s' |
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109 | % (remote, mirror)) |
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110 | |
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111 | remote_url = mirror + remote + cache_defeat |
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112 | log.debug('Trying to fetching file %s' % remote_url) |
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113 | new_auth = get_web_file(remote_url, local, auth=auth) |
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114 | if new_auth != False and not is_html(local): |
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115 | log.debug('Success fetching file %s' % remote_url) |
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116 | return new_auth |
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117 | |
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118 | log.info('Could not fetch file %s' % remote_url) |
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119 | return None |
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120 | |
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121 | |
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122 | # local function to compare contents of two files |
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123 | def files_same(file_a, file_b): |
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124 | '''Compare two files to see if contents are the same.''' |
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125 | |
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126 | fd = open(file_a, 'r') |
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127 | data_a = fd.read() |
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128 | fd.close() |
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129 | |
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130 | fd = open(file_b, 'r') |
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131 | data_b = fd.read() |
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132 | fd.close() |
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133 | |
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134 | return data_a == data_b |
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135 | |
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136 | |
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137 | # local function to update one data object |
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138 | def refresh_object(obj, auth, mirrors): |
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139 | '''Update object 'obj' using authentication tuple 'auth'. |
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140 | |
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141 | Return updated auth object (success) or None (failure). |
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142 | ''' |
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143 | |
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144 | log.info("Refreshing local object '%s'" % obj) |
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145 | |
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146 | # create local and remote file paths. |
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147 | obj_digest = obj + '.digest' |
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148 | |
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149 | remote_file = os.path.join(Remote_Data_Directory, obj) |
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150 | remote_digest = remote_file + '.digest' |
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151 | |
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152 | local_file = os.path.join(Local_Data_Directory, obj) |
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153 | local_digest = local_file + '.digest' |
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154 | |
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155 | # see if missing either digest or object .tgz |
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156 | if not os.path.exists(local_digest) or not os.path.exists(local_file): |
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157 | # no digest or no object, download both digest and object |
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158 | auth = get_remote_from_mirrors(obj_digest, local_digest, auth, mirrors) |
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159 | if auth: |
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160 | auth = get_remote_from_mirrors(obj, local_file, auth, mirrors) |
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161 | else: |
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162 | # download object digest to remote data directory |
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163 | auth = get_remote_from_mirrors(obj_digest, remote_digest, auth, mirrors) |
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164 | if auth: |
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165 | if not files_same(local_data_digest, remote_data_digest): |
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166 | # digests differ, refresh object |
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167 | log.info('Local file %s is out of date' % obj) |
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168 | shutil.move(remote_digest, local_digest) |
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169 | auth = get_remote_from_mirrors(obj, local_file, auth, mirrors) |
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170 | |
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171 | return auth |
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172 | |
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173 | # create local data directory if required |
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174 | log.debug('Creating local directory: %s' % Local_Data_Directory) |
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175 | if not os.path.exists(Local_Data_Directory): |
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176 | os.mkdir(Local_Data_Directory) |
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177 | |
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178 | # clean out remote data copy directory |
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179 | log.debug('Cleaning remote directory: %s' % Remote_Data_Directory) |
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180 | shutil.rmtree(Remote_Data_Directory, ignore_errors=True) |
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181 | os.mkdir(Remote_Data_Directory) |
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182 | |
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183 | # success, refresh local files |
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184 | auth = None |
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185 | for data_object in Mandatory_Data_Objects: |
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186 | auth = refresh_object(data_object, auth, mirrors) |
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187 | if auth is None: |
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188 | log.debug('Failed fetching %s, returning None' % data_object) |
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189 | return None |
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190 | for data_object in Optional_Data_Objects: |
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191 | auth = refresh_object(data_object, auth, mirrors) |
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192 | if auth is None: |
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193 | log.debug('Failed fetching %s, returning None' % data_object) |
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194 | return None |
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195 | |
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196 | log.info('Local data has been refreshed.') |
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197 | return True |
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198 | |
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199 | |
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200 | def can_we_run(): |
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201 | '''Decide if we can run with the files we have. |
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202 | |
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203 | Return True if we *can* run, else False. |
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204 | |
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205 | Tell user what is happening first, then untar files. |
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206 | ''' |
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207 | |
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208 | log.critical('Checking if you have the required files to run:') |
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209 | |
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210 | have_mandatory_files = True |
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211 | max_width = 0 |
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212 | for obj in Mandatory_Data_Objects: |
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213 | max_width = max(len(obj), max_width) |
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214 | for obj in Optional_Data_Objects: |
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215 | max_width = max(len(obj), max_width) |
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216 | |
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217 | # if we don't have all mandatory object, can't run |
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218 | for obj in Mandatory_Data_Objects: |
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219 | obj_path = os.path.join(Local_Data_Directory, obj) |
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220 | if os.path.exists(obj_path): |
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221 | log.info('\t%s found' % obj.ljust(max_width)) |
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222 | else: |
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223 | log.info('\t%s MISSING AND REQUIRED!' % obj.ljust(max_width)) |
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224 | have_mandatory_files = False |
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225 | |
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226 | # one or more of these must exist |
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227 | have_optional_files = True |
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228 | for obj in Optional_Data_Objects: |
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229 | obj_path = os.path.join(Local_Data_Directory, obj) |
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230 | if os.path.exists(obj_path): |
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231 | log.info('\t%s found' % obj.ljust(max_width)) |
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232 | else: |
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233 | log.info('\t%s MISSING!' % obj.ljust(max_width)) |
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234 | have_optional_files = False |
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235 | |
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236 | if not have_mandatory_files or not have_optional_files: |
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237 | log.critical('You must obtain the missing files before you can run ' |
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238 | 'this validation.') |
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239 | return False |
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240 | |
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241 | log.critical('You have the required files.') |
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242 | |
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243 | return True |
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244 | |
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245 | |
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246 | def run_simulation(vtype, sim_obj): |
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247 | '''Run the Patong simulation.''' |
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248 | |
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249 | # now untar file/directory objects |
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250 | for obj in Mandatory_Data_Objects: |
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251 | tar_path = os.path.join(Local_Data_Directory, obj) |
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252 | log.info('Untarring %s in directory %s ...' |
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253 | % (tar_path, Local_Data_Directory)) |
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254 | untar_file(tar_path, target_dir=Local_Data_Directory) |
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255 | |
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256 | # untar the vtype object |
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257 | tar_path = os.path.join(Local_Data_Directory, sim_obj) |
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258 | log.info('Untarring %s in directory %s ...' |
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259 | % (tar_path, Local_Data_Directory)) |
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260 | untar_file(tar_path, target_dir=Local_Data_Directory) |
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261 | |
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262 | # modify environment so we use the local data |
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263 | new_inundationhome = os.path.join(Local_Data_Directory, '') |
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264 | os.environ['INUNDATIONHOME'] = new_inundationhome |
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265 | new_muxhome = os.path.join(Local_Data_Directory, 'data') |
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266 | os.environ['MUXHOME'] = new_muxhome |
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267 | |
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268 | # modify project.py template |
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269 | fd = open('project.py.template', 'r') |
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270 | project = fd.readlines() |
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271 | fd.close() |
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272 | |
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273 | new_project = [] |
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274 | for line in project: |
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275 | new_project.append(line.replace('#!SETUP!#', vtype.lower())) |
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276 | |
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277 | fd = open('project.py', 'w') |
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278 | fd.write(''.join(new_project)) |
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279 | fd.close() |
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280 | |
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281 | # We import here, _after_ environment variables are set |
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282 | import project |
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283 | |
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284 | # run the simulation, produce SWW file |
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285 | log.critical('Running Patong simulation ...') |
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286 | cmd = 'python run_model.py > %s' % RUNMODEL_STDOUT |
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287 | res = os.system(cmd) |
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288 | assert res == 0 |
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289 | |
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290 | def check_that_output_is_as_expected(): |
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291 | '''Check that validation output is as required.''' |
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292 | |
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293 | # get path to expected SWW file |
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294 | log.critical('Checking that simulation results are as expected ...') |
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295 | local_sww = os.path.join(Local_Data_Directory, Local_Data_Objects[0]) |
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296 | |
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297 | # get output directory from stdout capture file |
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298 | try: |
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299 | fd = open(RUNMODEL_STDOUT, 'r') |
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300 | except IOError, e: |
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301 | log.critical("Can't open catch file '%s': %s" |
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302 | % (RUNMODEL_STDOUT, str(e))) |
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303 | return 1 |
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304 | lines = fd.readlines() |
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305 | fd.close |
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306 | |
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307 | output_directory = None |
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308 | for line in lines: |
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309 | if line.startswith(OUTDIR_PREFIX): |
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310 | output_directory = line.replace(OUTDIR_PREFIX, '', 1) |
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311 | output_directory = output_directory.strip('\n') |
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312 | break |
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313 | if output_directory is None: |
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314 | log.critical("Couldn't find line starting with '%s' in file '%s'" |
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315 | % (OUTDIR_PREFIX, RUNMODEL_STDOUT)) |
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316 | return 1 |
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317 | |
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318 | # compare SWW files here and there |
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319 | new_output_sww = os.path.join(output_directory, OUTPUT_SWW) |
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320 | cmd = 'python cmpsww.py %s %s > cmpsww.stdout' % (local_sww, new_output_sww) |
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321 | res = os.system(cmd) |
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322 | if res == 0: |
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323 | log.info('Simulation results are as expected.') |
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324 | else: |
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325 | log.critical('Simulation results are NOT as expected.') |
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326 | fd = open('cmpsww.stdout', 'r') |
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327 | cmp_error = fd.readlines() |
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328 | fd.close() |
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329 | log.critical('\n' + ''.join(cmp_error)) |
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330 | |
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331 | |
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332 | def teardown(): |
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333 | '''Clean up after validation run.''' |
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334 | |
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335 | # clear all data objects from local data directory |
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336 | for data_object in Local_Data_Objects: |
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337 | obj_path = os.path.join(Local_Data_Directory, data_object) |
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338 | if os.path.isfile(obj_path): |
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339 | os.remove(obj_path) |
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340 | else: |
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341 | shutil.rmtree(obj_path, ignore_errors=True) |
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342 | |
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343 | # remove remote directory and stdout capture file |
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344 | shutil.rmtree(Remote_Data_Directory, ignore_errors=True) |
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345 | try: |
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346 | os.remove(RUNMODEL_STDOUT) |
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347 | except OSError: |
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348 | pass |
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349 | |
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350 | |
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351 | ################################################################################ |
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352 | # Mainline - run the simulation, check output. |
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353 | ################################################################################ |
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354 | |
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355 | # set logging levels |
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356 | log.console_logging_level = log.INFO |
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357 | setup() |
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358 | |
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359 | # prepare user for what is about to happen |
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360 | |
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361 | msg = ''' |
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362 | This validation requires a working internet connection to refresh it's files. |
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363 | You may still run this validation without an internet connection if you have the |
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364 | required files. |
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365 | |
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366 | If you are behind a proxy server you will need to supply your proxy details |
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367 | such as the proxy server address and your proxy username and password. These |
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368 | can be defined in one or more of the environment variables: |
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369 | HTTP_PROXY |
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370 | PROXY_USERNAME |
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371 | PROXY_PASSWORD |
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372 | if you wish. If not supplied in environment variables you will be prompted for |
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373 | the information. |
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374 | ''' |
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375 | |
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376 | log.critical(msg) |
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377 | |
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378 | # make sure local data is up to date |
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379 | data_objects = [] |
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380 | for o in Mandatory_Data_Objects: |
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381 | data_objects.append(o) |
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382 | for o in Optional_Data_Objects: |
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383 | data_objects.append(o) |
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384 | |
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385 | if not refresh_local_data(data_objects, Local_Data_Directory, MIRRORS): |
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386 | if not can_we_run(): |
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387 | log.critical("Can't refresh via the internet and you don't have the " |
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388 | "required files.") |
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389 | log.critical('Terminating the validation.') |
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390 | log.critical('') |
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391 | log.critical('If you get the missing files from %s' % DATA_FILES_URL) |
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392 | log.critical('then you can try to run the validation again. Put the ' |
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393 | 'files into the directory') |
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394 | log.critical("%s." % Local_Data_Directory) |
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395 | sys.exit(10) |
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396 | |
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397 | # now run what simulations we can and check output is as expected |
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398 | for odo in Optional_Data_Objects: |
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399 | (_, vtype, _) = odo.rsplit('.', 2) |
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400 | vtype = vtype.lower() |
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401 | print "Running Patong '%s' validation" % vtype |
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402 | run_simulation(vtype, odo) |
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403 | check_that_output_is_as_expected(vtype, odo) |
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404 | |
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405 | # clean up |
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406 | #teardown() |
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