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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 # internal parameters
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16 #
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17
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18 # program version
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11
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19 my $version = "0.6 (ROC 23.3.2005)";
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20
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21 # short help
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22 my $shorthelp = "MPIWG archiver $version\nuse:\n archiver [options] docpath\noptions:\n -premigrate don't delete archived files\n";
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23
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24 # read command line parameters
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25 my $args = MPIWGStor::parseargs;
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26
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27 # debug level
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28 my $debug = (exists $$args{'debug'}) ? $$args{'debug'} : 0;
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0
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29
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30 # rewrite XML file (necessary for archive date!)
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31 my $fix_xml = 1;
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32 my $xml_changed = 0;
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33 # XML namespace (not really implemented!)
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34 my $namespace = "";
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35
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36 # archive name (archive-path element, usually == $docdir)
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37 my $archname;
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38 # archive storage date (now)
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39 my $archdate = stime(time);
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40
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41 # delete "junk" files before archiving
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42 my $delete_junk_files = 1;
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43
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44 # delete data files after archiving
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45 my $delete_data_files = 1;
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46
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47
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48 #######################################################
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49 # external programs
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50 #
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51 my $archprog = "/opt/tivoli/tsm/client/ba/bin/dsmc";
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52 if (! -x $archprog) {
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11
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53 logger('ABORT', "TSM client program '$archprog' missing!!\n");
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0
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54 exit 1;
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55 }
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56 my $checkprog = "/usr/local/mpiwg/archive/metacheck";
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57 if (! -x $checkprog) {
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11
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58 logger('ABORT', "meta data checking program '$checkprog' missing!!\n");
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0
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59 exit 1;
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60 }
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61 # log file for archiver
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62 my $log_file = "/var/log/mpiwg-archiver.log";
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63 if (! open LOG, ">>$log_file") {
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11
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64 logger('ABORT', "unable to write log file '$log_file'!!\n");
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0
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65 exit 1;
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66 }
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67
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68 #######################################################
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69 # check parameters that were passed to the program
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70 #
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71 if ($#ARGV < 0) {
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11
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72 print $shorthelp;
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0
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73 exit 1;
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74 }
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11
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75 my $docdir = $$args{'path'};
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1
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76 # strip double slashes
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77 $docdir =~ s/\/\//\//;
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78 # strip trailing slashes
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1
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79 $docdir =~ s/\/+$//;
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80 if (! -d $docdir) {
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11
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81 logger('ABORT', "document directory \'$docdir\' doesn't exist!\n");
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82 exit 1;
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83 }
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11
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84 # don't delete archived files with "-premigrate"
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85 if (exists $$args{'premigrate'}) {
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86 $delete_data_files = not $$args{'premigrate'};
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87 }
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88 if ($delete_data_files) {
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89 logger('INFO', "going to remove successfully archived files from disk");
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0
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90 }
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91
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92 my $metafile = "$docdir/index.meta";
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93 if (! -f $metafile) {
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11
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94 logger('ABORT', "metadata index file \'$metafile\' doesn't exist!\n");
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0
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95 exit 1;
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96 }
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97
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98 #######################################################
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99 # internal variables
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100 #
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101
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102 # number of errors
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103 my $errcnt = 0;
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104 # number of warnings
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105 my $warncnt = 0;
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106
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107 #######################################################
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108 # subroutines
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109 #
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110
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111 #
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112 # $files = read_resource_meta($rootnode)
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113 #
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114 # checks general resource meta information and reads the list of files
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115 #
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116 sub read_resource_meta {
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117 my ($rootnode) = @_;
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118 my %files;
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119 #
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120 # archive path
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121 #
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122 # get archive-path
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123 $archname = MPIWGStor::sstrip($rootnode->findvalue('child::archive-path'));
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124 if (! $archname) {
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11
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125 logger('ABORT', "archive-name element missing!!\n");
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0
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126 exit 1;
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127 }
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128
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129 #
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130 # files
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131 #
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132 my @filenodes = $rootnode->findnodes('child::file');
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133 foreach my $fn (@filenodes) {
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134 my $name = MPIWGStor::sstrip($fn->findvalue('child::name'));
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135 my $path = MPIWGStor::sstrip($fn->findvalue('child::path'));
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11
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136 logger('DEBUG', "FILE ($path)$name\n");
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137 my $f = ($path) ? "$path/$name" : "$name";
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138 $files{$f} = $name;
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139 }
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140
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141 #
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142 # archive-storage-date
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143 #
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144 my $stordatenode = ($rootnode->find('child::archive-storage-date'))->get_node(1);
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145 if ($stordatenode) {
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11
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146 logger('WARNING', "archive storage date exists! Resource already archived?\n");
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147 $warncnt++;
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148 # delete old date
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149 $stordatenode->removeChildNodes;
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150 } else {
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151 # create new storage date node
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152 $stordatenode = $rootnode->addNewChild($namespace, "archive-storage-date");
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153 # move after archive-path
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154 $rootnode->insertAfter($stordatenode, ($rootnode->find('child::archive-path'))->get_node(1));
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155 }
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156 $stordatenode->appendTextNode($archdate);
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157 $xml_changed++;
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158 return \%files;
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159 }
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160
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161
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162 #
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163 # $%files = run_archive
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164 #
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165 # runs the archiver program on $docdir and returns a list of archived files
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166 #
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167 sub run_archive {
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168 my %files;
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169 print LOG "START archiver $version $archdate\n";
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170 my $archcmd = $archprog;
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171 $archcmd .= " archive -archsymlinkasfile=no -subdir=yes";
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172 $archcmd .= " -description='$archname'";
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173 $archcmd .= " '$docdir/'";
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174
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175 print LOG "CMD: $archcmd\n";
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176 if (open ARCH, "$archcmd 2>&1 |") {
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177 while (<ARCH>) {
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178 chomp;
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179 print LOG "ARCH: $_\n";
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180 if (/Normal File-->\s+[\d,]+\s+(.*)\s+\[Sent\]/) {
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181 print " ARCH: file '$1'\n";
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182 $files{$1} = "ok";
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183 }
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184 if (/^Archive processing of .* finished without failure./) {
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185 print " ARCH: OK\n";
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186 }
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187 }
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188 } else {
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189 logger('ABORT', "unable to start archive command '$archcmd'!!\n");
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0
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190 exit 1;
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191 }
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192
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193 return \%files;
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194 }
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195
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196
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197 #
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198 # check_files(\%files_to_archive, \%archived_files)
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199 #
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200 # compares the list of archived and to be archived files
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201 #
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202 sub check_files {
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203 my ($to_archive, $archived) = @_;
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204
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205 my $nt = scalar keys %$to_archive;
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206 my $na = scalar keys %$archived;
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207
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208 foreach my $ft (sort keys %$to_archive) {
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209 my $fp = "$docdir/$ft";
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210 #print " fp: $fp\n";
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211 if ($$archived{$fp}) {
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212 logger('DEBUG', "$ft archived OK\n");
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213 $$archived{$fp} = "OK";
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214 } else {
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11
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215 logger('ERROR', "file '$ft' missing from archive!\n");
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216 $errcnt++;
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217 }
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218 }
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219
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220 foreach my $fa (sort keys %$archived) {
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221 if ($$archived{$fa} ne "OK") {
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222 my ($fn, $fp) = MPIWGStor::split_file_path($fa);
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223 if ($MPIWGStor::index_files{$fn}) {
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224 logger('DEBUG', "$fa ignored\n");
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225 $na--;
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226 } else {
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11
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227 logger('WARNING', "$fa archived but not in list!\n");
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228 $warncnt++;
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229 }
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230 }
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231 }
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232
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233 if ($nt > $na) {
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234 logger('WARNING', "less files were archived ($na vs. $nt)!\n");
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0
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235 } elsif ($na > $nt) {
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11
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236 logger('WARNING', "more files were archived ($na vs. $nt)!\n");
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0
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237 }
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238
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239 }
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240
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241
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242 #
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243 # delete_files(\%files)
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244 #
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245 # deletes the files from the list (of absolute files) and their directories
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246 # if they are empty
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247 #
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248 sub delete_files {
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249 my ($files) = @_;
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250 my %dirs;
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251
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252 foreach my $f (sort keys %$files) {
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253 my ($fn, $fp) = MPIWGStor::split_file_path($f);
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254 # collect all unique directories
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255 if ($fp && (! $dirs{$fp})) {
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256 $dirs{$fp} = $fp;
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257 }
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258 # don't delete index files
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259 next if ($MPIWGStor::index_files{$fn});
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260 # no file no delete
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261 next unless (-f $f);
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262 # delete files
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263 if (unlink $f) {
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11
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264 logger('INFO', "remove $f ($fn)\n");
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265 } else {
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266 logger('ERROR', "unable to delete $f!\n");
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267 $errcnt++;
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268 }
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269 }
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270 # try to delete all empty directories
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271 my @dirkeys = sort keys %dirs;
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272 # starting at the end to get to the subdirectories first
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273 for (my $i = $#dirkeys; $i >= 0; $i--) {
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274 my $d = $dirkeys[$i];
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275 # dont't remove document dir (shouldn't be empty anyway)
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276 next if ($d eq $docdir);
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277 if (-d $d) {
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278 logger('INFO', "remove dir $d\n");
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279 rmdir $d;
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280 }
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281 }
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282 }
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283
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284
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285 #
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286 # delete_all_files(\%files, $dir)
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287 #
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288 # deletes all files with names from the list %files
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289 # in the directory $dir and its subdirectories
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290 #
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291 sub delete_all_files {
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292 my ($files, $dir) = @_;
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293
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294 if (! opendir DIR, $dir) {
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295 logger('ERROR', "unable to read directory $dir!\n");
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296 $errcnt++;
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297 return;
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298 }
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299 my @fl = readdir DIR;
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300 closedir DIR;
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301
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302 foreach my $f (@fl) {
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303 next if ($f =~ /^\.{1,2}$/);
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304 if ($$files{$f}) {
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305 # $f is in the file list
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306 if (-f "$dir/$f") {
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307 # $f is a file
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308 if (unlink "$dir/$f") {
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309 logger('INFO', "removed $f\n");
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310 } else {
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11
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311 logger('ERROR', "unable to delete $f!\n");
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312 $errcnt++;
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313 }
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314 } elsif (-d _) {
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315 # $f is a directory (unlink won't work)
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316 if ((system 'rm', '-r', "$dir/$f") == 0) {
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317 logger('INFO', "removed directory $f\n");
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318 } else {
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319 logger('ERROR', "unable to delete directory $f!\n");
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320 $errcnt++;
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321 }
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322 } else {
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11
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323 logger('ERROR', "funny object $dir/$f!\n");
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324 $errcnt++;
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325 }
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326 } else {
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327 # $f is not in the list
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328 if (-d "$dir/$f") {
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329 # recurse into directories
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330 logger('DEBUG', "enter $dir/$f\n");
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331 delete_all_files($files, "$dir/$f");
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332 }
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333 }
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334 }
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335 }
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336
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337
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338 #######################################################
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339 # main
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340 #
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341
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11
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342 logger('START', "archiver $version at $archdate\n");
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0
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343
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344 # make shure the right user is running this program
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345 my $user = getlogin;
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346 #if (($user ne "archive")||($user ne "root")) {
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347 # logger("ABORT", "you ($user) must be archive or root user to run this program!");
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348 # exit 1;
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349 #}
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350
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351 # use metacheck first
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352 if (system("$checkprog $docdir >/dev/null") == 0) {
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11
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353 logger('INFO', "resource '$docdir' check OK\n");
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0
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354 } else {
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11
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355 logger('ABORT', "resource '$docdir' check failed!!\n");
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0
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356 exit 1;
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357 }
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358
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359 # read index.meta file
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360 my ($document, $rootnode) = MPIWGStor::read_xml($metafile);
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361
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362 # check file and add archive date
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363 my $files_to_archive = read_resource_meta($rootnode);
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364
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365 print "INFO: ", scalar keys %$files_to_archive, " files to archive\n";
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366
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367 # check for .archived file
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368 if (-f "$docdir/.archived") {
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369 if (unlink "$docdir/.archived") {
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11
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370 logger('WARNING', "existing .archived file has been removed! Resource already archived?\n");
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0
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371 $warncnt++;
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372 } else {
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11
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373 logger('ERROR', "unable to remove existing .archived file!\n");
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0
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374 $errcnt++;
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375 }
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376 }
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377
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378 # remove junk files
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379 if ($delete_junk_files) {
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380 delete_all_files(\%MPIWGStor::junk_files, $docdir);
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381 }
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382
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383 # write new index.meta
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384 if ($errcnt > 0) {
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11
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385 logger('ABORT', "there were errors!\n");
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0
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386 exit 1;
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387 } else {
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388 if ($fix_xml) {
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389 MPIWGStor::write_xml($document, $metafile);
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390 }
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391 }
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392
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393 # start archiving
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5
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394 my $archived_files = run_archive();
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395 my $num_archfiles = scalar keys %$archived_files;
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0
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396
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11
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397 logger('INFO', "$num_archfiles files archived\n");
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0
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398
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399 # check list of archived files
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400 check_files($files_to_archive, $archived_files);
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401
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402 # delete files if all went OK
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403 if ($errcnt == 0) {
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404 system("touch", "$docdir/.archived");
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405 # remove junk files (again)
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406 if ($delete_junk_files) {
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407 delete_all_files(\%MPIWGStor::junk_files, $docdir);
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408 }
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409 # remove archived files
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410 if ($delete_data_files) {
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411 delete_files($archived_files);
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412 }
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413 }
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414
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11
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415 logger('INFO', "$warncnt warnings\n");
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416 logger('INFO', "$errcnt errors\n");
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0
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417 if ($errcnt > 0) {
|
|
11
|
418 logger('ABORT', "there were errors! ($num_archfiles files archived) at " . stime(time));
|
|
0
|
419 exit 1;
|
|
|
420 } else {
|
|
11
|
421 logger('DONE', "$num_archfiles files archived at " . stime(time));
|
|
0
|
422 }
|
