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1 #!/usr/local/bin/perl -w
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2
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3 use strict;
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4
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5 use XML::LibXML;
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6
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7 # MPIWG libraries
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8 use lib '/usr/local/mpiwg/archive';
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9 use MPIWGStor;
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10
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11 # make output unbuffered
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12 $|=1;
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13
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14
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15 #######################################################
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16 # internal parameters
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17 #
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18
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19 # program version
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20 my $version = "0.1 (24.9.2003)";
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21
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22 # read command line parameters
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23 my $args = parseargs;
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24
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25 # debug level
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26 $debug = (exists $$args{'debug'}) ? ($$args{'debug'}) : 0;
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27
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28 # rewrite XML file (necessary for archive date!)
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29 my $fix_xml = 1;
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30 my $xml_changed = 0;
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31 # XML namespace (not really implemented!)
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32 my $namespace = "";
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33
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34 # archive name (archive-path element, usually == $docdir)
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35 my $archname;
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36 # archive storage date
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37 my $archdate;
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38
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39 #######################################################
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40 # external programs
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41 #
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42 my $archprog = "/opt/tivoli/tsm/client/ba/bin/dsmc";
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43 if (! -x $archprog) {
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44 logger("ABORT", "TSM client program '$archprog' missing!!");
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45 exit 1;
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46 }
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47 my $checkprog = "/usr/local/mpiwg/archive/archivecheck";
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48 if (! -x $checkprog) {
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49 logger("ABORT", "archive checking program '$checkprog' missing!!");
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50 exit 1;
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51 }
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52 # log file for archiver
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53 my $log_file = "/var/tmp/unarchiver.log";
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54 if (! open LOG, ">>$log_file") {
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55 logger("ABORT", "unable to write log file '$log_file'!!");
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56 exit 1;
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57 }
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58
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59 #######################################################
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60 # check parameters that were passed to the program
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61 #
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62 my $docdir = $$args{'path'};
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63 if (! $docdir) {
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64 print "ABORT: no document directory given!\n";
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65 exit 1;
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66 }
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67 # strip trailing slashes
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68 $docdir =~ s/\/$//;
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69 if (! -d $docdir) {
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70 print "ABORT: document directory \'$docdir\' doesn't exist!\n";
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71 exit 1;
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72 }
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73
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74 my $metafile = "$docdir/index.meta";
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75 if (! -f $metafile) {
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76 print "ABORT: metadata index file \'$metafile\' doesn't exist!\n";
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77 exit 1;
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78 }
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79
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80
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81 #######################################################
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82 # internal variables
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83 #
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84
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85 # number of errors
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86 my $errcnt = 0;
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87 # number of warnings
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88 my $warncnt = 0;
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89
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90 #######################################################
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91 # subroutines
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92 #
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93
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94
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95 #
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96 # $files = read_resource_meta($rootnode)
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97 #
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98 # checks general resource meta information and reads the list of files
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99 #
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100 sub read_resource_meta {
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101 my ($rootnode) = @_;
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102 my %files;
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103 #
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104 # archive path
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105 #
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106 # get archive-path
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107 $archname = sstrip($rootnode->findvalue('child::archive-path'));
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108 if (! $archname) {
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109 logger("ABORT", "archive-name element missing!!");
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110 exit 1;
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111 }
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112
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113 #
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114 # files
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115 #
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116 my @filenodes = $rootnode->findnodes('child::file');
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117 foreach my $fn (@filenodes) {
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118 my $name = sstrip($fn->findvalue('child::name'));
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119 my $path = sstrip($fn->findvalue('child::path'));
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120 logger("DEBUG", "FILE: ($path)$name");
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121 my $f = ($path) ? "$path/$name" : "$name";
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122 $files{$f} = [$name];
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123 }
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124
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125 #
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126 # dirs
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127 #
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128 my @dirnodes = $rootnode->findnodes('child::dir');
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129 foreach my $fn (@dirnodes) {
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130 my $name = sstrip($fn->findvalue('child::name'));
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131 my $path = sstrip($fn->findvalue('child::path'));
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132 logger("DEBUG", "DIR: ($path)$name");
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133 my $f = ($path) ? "$path/$name" : "$name";
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134 $files{$f} = [$name];
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135 }
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136
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137 #
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138 # archive-storage-date
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139 #
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140 my $archdate = $rootnode->find('child::archive-storage-date');
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141 if ($archdate) {
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142 logger("INFO", "archive storage date: $archdate");
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143 } else {
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144 logger("ERROR", "archive storage date missing!");
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145 $errcnt++;
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146 }
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147
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148 #
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149 # archive-recall-date
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150 #
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151 my $recalldatenode = ($rootnode->find('child::archive-recall-date'))->get_node(1);
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152 if ($recalldatenode) {
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153 print "INFO: archive recall date exists!\n";
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154 # delete old date
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155 $recalldatenode->removeChildNodes;
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156 } else {
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157 # create new storage date node
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158 $recalldatenode = $rootnode->addNewChild($namespace, "archive-recall-date");
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159 # move after archive-path
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160 $rootnode->insertAfter($recalldatenode, ($rootnode->find('child::archive-storage-date'))->get_node(1));
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161 }
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162 $recalldatenode->appendTextNode(scalar localtime);
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163 $xml_changed++;
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164
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165 return \%files;
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166 }
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167
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168
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169 #
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170 # $%files = run_retrieve
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171 #
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172 # runs the retriever program on $docdir and returns a list of archived files
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173 #
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174 # Sample output:
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175 # Retrieving 17,234 /mpiwg/archive/data/test/auto_titit_123/pageimg/essen-wind1.jpg [Done]
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176 #
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177 sub run_retrieve {
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178 my %files;
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179 print LOG "START unarchive $version ", scalar localtime, "\n";
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180 my $archcmd = $archprog;
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181 $archcmd .= " retrieve -subdir=yes -replace=all";
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182 $archcmd .= " -description='$archname'";
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183 $archcmd .= " '$docdir/'";
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184
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185 my $archcnt = 0;
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186 print LOG "CMD: $archcmd\n";
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187 if (open ARCH, "$archcmd 2>&1 |") {
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188 while (<ARCH>) {
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189 chomp;
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190 print LOG "ARCH: $_\n";
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191 if (/
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192 Retrieving
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193 \s+([\d,]+) # size
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194 \s+(\S+) # file name
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195 \s+\[Done\]
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196 /x) {
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197 my $size = $1;
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198 my $file = $2;
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199 $size =~ s/,//g;
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200 logger("DEBUG", " RETRIEVE: file '$file'");
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201 $archcnt++;
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202 if ($files{$file}) {
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203 logger("WARNING", "file $file seems to be archived multiple times.");
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204 $warncnt++;
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205 }
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206 $files{$file} = [$size];
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207 }
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208 }
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209 logger("INFO", "$archcnt archives of " . (scalar keys %files) . " files.");
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210 } else {
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211 logger("ABORT", "unable to start archive command '$archcmd'!!");
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212 exit 1;
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213 }
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214 return \%files;
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215 }
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216
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217
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218 #
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219 # check_files(\%files_to_retrieve, \%retrieved_files)
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220 #
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221 # compares the list of archived and retrieved files
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222 #
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223 sub check_files {
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224 my ($to_retrieve, $retrieved) = @_;
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225
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226 my $nt = scalar keys %$to_retrieve;
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227 my $na = scalar keys %$retrieved;
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228
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229 foreach my $ft (sort keys %$to_retrieve) {
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230 my $fp = "$docdir/$ft";
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231 #logger("DEBUG", " fp: $fp");
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232 if ($$retrieved{$fp}) {
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233 logger("DEBUG", "$ft retrieved OK");
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234 $$retrieved{$fp}->[1] = "OK";
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235 } else {
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236 logger("ERROR", "file entry '$ft' missing from archive!");
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237 $errcnt++;
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238 }
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239 }
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240
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241 foreach my $fa (sort keys %$retrieved) {
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242 if (! $$retrieved{$fa}->[1]) {
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243 my ($fn, $fp) = split_file_path($fa);
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244 if ($index_files{$fn}) {
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245 logger("DEBUG", "$fa ignored");
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246 $na--;
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247 } else {
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248 logger("WARNING", "$fa retrieved but not in list!");
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249 $warncnt++;
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250 }
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251 }
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252 }
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253
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254 if ($nt > $na) {
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255 logger("WARNING", "less files were retrieved ($na vs. $nt)!");
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256 $warncnt++;
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257 } elsif ($na > $nt) {
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258 logger("WARNING", "more files were retrieved ($na vs. $nt)!");
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259 $warncnt++;
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260 }
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261
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262 }
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263
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264
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265
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266 #######################################################
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267 # main
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268 #
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269
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270 logger("INFO", "unarchiver $version");
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271
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272 # make shure the right user is running this program
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273 my $user = getlogin;
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274 if (($user ne "archive")&&($user ne "root")) {
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275 logger("ABORT", "you must be archive or root user to run this program!");
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276 exit 1;
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277 }
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278
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279 # use checkarchive first
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280 if (system("$checkprog $docdir >/dev/null") == 0) {
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281 logger("INFO", "archive '$docdir' check OK");
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282 } else {
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283 logger("ABORT", "archive '$docdir' check failed!!");
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284 exit 1;
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285 }
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286
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287 # read index.meta file
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288 my ($document, $rootnode) = read_xml($metafile);
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289
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290 # check index file
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291 my $archived_files = read_resource_meta($rootnode);
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292 my $num_archived_files = scalar keys %$archived_files;
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293
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294 # check for .archived file
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295 if (-f "$docdir/.archived") {
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296 logger("INFO", ".archived file exists.");
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297 } else {
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298 logger("WARNING", "no .archived file!");
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299 $warncnt++;
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300 }
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301
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302 logger("INFO", "$num_archived_files files to retrieve.");
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303
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304 # retrieve
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305 my $retrieved_files = run_retrieve;
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306
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307 my $num_arch_files = (scalar keys %$retrieved_files);
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308 if ($num_arch_files == 0) {
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309 logger("ABORT", "no files retrieved!!");
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310 exit 1;
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311 }
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312 logger("INFO", "$num_arch_files files retrieved");
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313
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314 # check list of archived files
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315 check_files($archived_files, $retrieved_files);
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316
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317 # rewrite index.meta file
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318 write_xml($document, $metafile);
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319
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320 logger("INFO", "$warncnt warnings");
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321 logger("INFO", "$errcnt errors");
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322 if ($errcnt == 0) {
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323 logger("DONE", "" . (scalar keys %$retrieved_files) . " archived files retrieved");
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324 } else {
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325 logger("ABORT", "there were $errcnt errors!!");
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326 exit 1;
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327 }
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