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0
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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 use XML::LibXML;
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5
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6 use lib '/usr/local/mpiwg/archive';
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7 use MPIWGStor;
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8
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9 # make output unbuffered
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10 $|=1;
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11
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12 #######################################################
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13 # internal parameters
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14 #
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15
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16 # program version
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17 my $version = "0.5.2 (7.1.2004)";
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18
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19 # read command line parameters
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20 my $args = MPIWGStor::parseargs;
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21
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22 # debug level
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23 $debug = (exists $$args{'debug'}) ? $$args{'debug'} : 0;
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24
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25 # check only or fix index file also
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26 my $check_only = (exists $$args{'checkonly'}) ? $$args{'checkonly'} : 0;
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27 # add file tags for missing files
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28 my $fix_files = ! $check_only;
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29 # add tags for file size and date
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30 my $fix_fs_meta = 1;
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31 # add dir tags for missing directories
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32 my $fix_dirs = ! $check_only;
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33 # rewrite XML file (necessary for fix_files and fix_dirs)
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34 my $fix_xml = ! $check_only;
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35 my $xml_changed = 0;
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36 # XML namespace (not really implemented!)
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37 my $namespace = "";
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38
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39
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40 #######################################################
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41 # check parameters that were passed to the program
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42 #
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43 my $docdir = $$args{'path'};
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44 if (! $docdir) {
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45 logger("ABORT", "no document directory given!");
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46 exit 1;
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47 }
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48 # strip trailing slashes
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49 $docdir =~ s/\/$//;
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50 if (! -d $docdir) {
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51 logger("ABORT", "document directory \'$docdir\' doesn't exist!");
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52 exit 1;
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53 }
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54
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55 my $metafile = "$docdir/index.meta";
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56 if (! -f $metafile) {
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57 logger("ABORT", "metadata index file \'$metafile\' doesn't exist!");
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58 exit 1;
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59 }
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60
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61 #######################################################
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62 # internal variables
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63 #
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64
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65 # all files in the document directory tree
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66 my %files;
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67 # all directories in the document directory tree
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68 my %dirs;
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69 # number of errors
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70 my $errcnt = 0;
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71 # number of warnings
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72 my $warncnt = 0;
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73
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74 #######################################################
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75 # subroutines
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76 #
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77
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78 #
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79 # fs_read_files($realdir, $docdir, \%files, \%dirs)
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80 #
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81 # reads all files and directories below $realdir and puts the
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82 # files in %files and directories in %dirs
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83 # $docdir is only for recursion, it should be empty when called
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84 # from outside
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85 #
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86 sub fs_read_files {
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87 my ($directory, $docdir, $files, $dirs) = @_;
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88 my $cnt = 0;
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89
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90 if (! opendir DIR, $directory) {
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91 return 0;
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92 }
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93 my @dirfiles = readdir DIR;
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94 foreach my $fn (@dirfiles) {
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95 # ignore names starting with a dot
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96 next if ($fn =~ /^\./);
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97 # ignore other silly files
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98 next if ($junk_files{$fn});
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99
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100 $cnt++;
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101 my $f = "$directory/$fn";
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102 my $docf = ($docdir) ? "$docdir/$fn" : $fn;
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103 #logger("fs_file: \"$f\"");
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104 if (-f $f) {
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105 #logger(" is file");
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106 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
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107 $atime,$mtime,$ctime,$blksize,$blocks)
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108 = stat(_);
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109 $$files{$docf} = [$fn, $size, $mtime];
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110 } elsif (-d _) {
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111 #logger(" is dir");
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112 $$dirs{$docf} = $fn;
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113 # recurse into directory
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114 $cnt += fs_read_files($f, $docf, $files, $dirs);
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115 }
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116 }
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117 return $cnt;
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118 }
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119
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120
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121 #
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122 # check_dirs($rootnode, \%dirs)
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123 #
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124 # reads all dir elements under $rootnode and compares with the directory list
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125 # in %dirs
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126 #
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127 sub check_dirs {
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128 my ($root, $fsdirs) = @_;
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129
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130 #
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131 # iterate all dir tags
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132 #
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133 my @dirnodes = $root->findnodes('child::dir');
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134 my %okdirs;
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135 foreach my $dirnode (@dirnodes) {
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136 my $dirname = sstrip($dirnode->find('child::name'));
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137 my $dirpath = sstrip($dirnode->find('child::path'));
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138 my $description = sstrip($dirnode->find('child::description'));
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139 # name must be valid
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140 if (! valid_dir_name($dirname)) {
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141 logger("ERROR", "directory name ($dirpath) $dirname invalid!");
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142 $errcnt++;
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143 }
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144 # description can be present
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145 if (! $description) {
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146 logger("WARNING", "description for directory $dirname (in $dirpath/) missing!");
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147 $warncnt++;
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148 }
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149 # check with dirs on filesystem
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150 my $fn;
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151 if ($dirpath) {
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152 $fn = "$dirpath/$dirname";
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153 } else {
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154 $fn = "$dirname";
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155 }
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156 #logger("dir: \"$dirname\", \"$dirpath\"");
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157 if ($$fsdirs{$fn}) {
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158 #logger(" OK ($$fsdirs{$fn})");
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159 $okdirs{$fn} = $dirname;
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160 } else {
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161 logger("ERROR", "directory $dirname (in $dirpath/) missing on disk!");
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162 $errcnt++;
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163 }
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164 }
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165 #logger("dirs: ", (scalar keys %$fsdirs), " vs ", (scalar keys %okdirs), "");
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166 if ((scalar keys %$fsdirs) != (scalar keys %okdirs)) {
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167 # number of dir tags and dirs don't match
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168 # iterate through all dirs
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169 foreach my $f (sort keys %$fsdirs) {
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170 # was this dir missing?
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171 if (! $okdirs{$f}) {
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172 my ($name, $path) = split_file_path($f);
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173 # name must be valid
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174 if (! valid_dir_name($name)) {
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175 $path = "." unless ($path);
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176 logger("ERROR", "directory name $name (in $path/) invalid!");
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177 $errcnt++;
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178 next;
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179 }
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180 if ($fix_dirs) {
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181 # add missing dir tag
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182 my $dir_node = $root->addNewChild($namespace, "dir");
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183 $xml_changed++;
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184 # add name
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185 my $name_node = $dir_node->addNewChild($namespace, "name");
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186 $name_node->appendTextNode($name);
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187 # add path
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188 if ($path) {
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189 my $path_node = $dir_node->addNewChild($namespace, "path");
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190 $path_node->appendTextNode($path);
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191 }
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192 logger("INFO", "directory $f to be added to index file!");
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193 } else {
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194 logger("ERROR", "directory $f missing in index file!");
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195 $errcnt++;
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196 }
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197 }
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198 }
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199 }
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200 }
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201
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202
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203 #
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204 # check_files($rootnode, \%files)
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205 #
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206 # reads all file elements under $rootnode and compares with the file list
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207 # in %files
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208 #
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209 sub check_files {
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210 my ($root, $fsfiles) = @_;
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211
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212 #
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213 # iterate all file tags
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214 #
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215 my @filenodes = $root->findnodes('child::file');
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216 my %okfiles;
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217 foreach my $filenode (@filenodes) {
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218 my $filename = sstrip($filenode->find('child::name'));
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219 my $filepath = sstrip($filenode->find('child::path'));
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220 my $filesize = sstrip($filenode->find('child::size'));
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221 my $filedate = sstrip($filenode->find('child::date'));
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222 # name must be valid
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223 if (! valid_file_name($filename)) {
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224 logger("ERROR", "file name ($filepath)$filename invalid!");
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225 $errcnt++;
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226 }
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227 my $fn = ($filepath) ? "$filepath/$filename" : "$filename";
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228 #logger("file: \"$filename\", \"$filepath\"");
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229 if ($$fsfiles{$fn}) {
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230 #logger(" OK ($$fsfiles{$fn})");
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231 $okfiles{$fn} = $filename;
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232 # check file size and date
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233 if ($filesize) {
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234 if ($filesize != $$fsfiles{$fn}->[1]) {
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235 logger("WARNING", "size of file $fn changed: $filesize to $$fsfiles{$fn}->[1]");
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236 $warncnt++;
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237 }
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238 }
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239 # file date
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240 if ($filedate) {
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241 if ($filedate ne stime($$fsfiles{$fn}->[2])) {
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242 logger("WARNING", "date of file $fn changed: $filedate to ", stime($$fsfiles{$fn}->[2]), "");
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243 $warncnt++;
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244 }
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245 }
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246 # update file size and date
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247 if ($fix_fs_meta) {
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248 # delete size and date
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249 foreach my $n ($filenode->findnodes('child::size')) {
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250 $filenode->removeChild($n);
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251 }
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252 foreach my $n ($filenode->findnodes('child::date')) {
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253 $filenode->removeChild($n);
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254 }
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255 # add new size and date
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256 my $node = $filenode->addNewChild($namespace, "size");
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257 $node->appendTextNode($$fsfiles{$fn}->[1]);
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258 $node = $filenode->addNewChild($namespace, "date");
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259 $node->appendTextNode(stime($$fsfiles{$fn}->[2]));
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260 $xml_changed++;
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261 }
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262 } else {
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263 logger("ERROR", "file $filename (in $filepath/) missing on disk!");
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264 $errcnt++;
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265 }
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266 }
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267 #logger("files: ", (scalar keys %$fsfiles), " vs ", (scalar keys %okfiles), "");
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268 if ((scalar keys %$fsfiles) != (scalar keys %okfiles)) {
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269 # number of file tags and files don't match
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270 # iterate through all files
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271 foreach my $f (sort keys %$fsfiles) {
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272 my ($name, $path) = split_file_path($f);
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273 # was this file missing?
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274 if (! $okfiles{$f}) {
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275 # is an ignoreable file?
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276 if ($index_files{$name}) {
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277 next;
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278 }
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279 # name must be valid
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280 if (! valid_dir_name($name)) {
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281 $path = "." unless ($path);
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282 logger("ERROR", "file name $name (in $path/) invalid!");
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283 $errcnt++;
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284 next;
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285 }
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286 if ($fix_files) {
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287 # add missing file tag
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288 my $file_node = $root->addNewChild($namespace, "file");
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289 $xml_changed++;
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290 # add name
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291 my $name_node = $file_node->addNewChild($namespace, "name");
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292 $name_node->appendTextNode($name);
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293 # add path
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294 if ($path) {
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295 my $path_node = $file_node->addNewChild($namespace, "path");
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296 $path_node->appendTextNode($path);
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297 }
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298 # add size
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299 my $size_node = $file_node->addNewChild($namespace, "size");
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300 $size_node->appendTextNode($$fsfiles{$f}->[1]);
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301 # add date
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302 my $date_node = $file_node->addNewChild($namespace, "date");
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303 $date_node->appendTextNode(stime($$fsfiles{$f}->[2]));
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304 logger("INFO", "file $f to be added to index file!");
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305 } else {
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306 logger("ERROR", "file $f missing in index file!");
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307 $errcnt++;
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308 }
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309 }
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310 }
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311 }
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312 }
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313
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314 #
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315 # check_resource_meta($rootnode)
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316 #
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317 # checks general resource meta information
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318 #
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319 sub check_resource_meta {
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320 my ($rootnode) = @_;
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321
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322 #
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323 # description
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324 #
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325 my $description = $rootnode->findvalue('child::description');
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326 if (! $description) {
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327 logger("ERROR", "resource description element missing!");
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328 $errcnt++;
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329 }
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330 #
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331 # name
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332 #
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333 my $name = sstrip($rootnode->findvalue('child::name'));
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334 if ($name) {
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335 my ($dirname, $dirpath) = split_file_path($docdir);
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336 if ($dirname ne $name) {
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337 logger("ERROR", "resource name element '$name' does not match directory name '$dirname'!");
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338 $errcnt++;
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339 }
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340 } else {
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341 logger("ERROR", "resource name element missing!");
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342 $errcnt++;
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343 }
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344 #
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345 # archive path
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346 #
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347 my $realpath;
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348 # get real path
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349 if ($docdir =~ /^\//) {
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350 # docdir is absolute
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351 $realpath = $docdir;
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352 } else {
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353 # docdir is relative -- try with the shell
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354 if (open PWDCMD, "cd $docdir ; pwd|") {
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355 $realpath = <PWDCMD>;
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356 chomp $realpath;
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357 }
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358 }
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359 if (! $realpath) {
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360 logger("ERROR", "unable to check real archive path!");
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361 $errcnt++;
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362 return;
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363 }
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364 # get archive-path
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365 my $archnode = ($rootnode->find('child::archive-path'))->get_node(1);
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366 if ($archnode) {
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367 my $arch = sstrip($archnode->textContent);
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368 if ($arch ne $realpath) {
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369 logger("WARNING", "incorrect archive-path '$arch' will be changed to '$realpath'!");
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370 $warncnt++;
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371 # correct archive-path
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372 $archnode->removeChildNodes;
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373 $archnode->appendTextNode($realpath);
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374 $xml_changed++;
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375 }
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376 } else {
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377 # add archive-path
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378 $archnode = $rootnode->addNewChild($namespace, "archive-path");
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379 $archnode->appendTextNode($realpath);
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380 $xml_changed++;
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381 }
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382
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383 }
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384
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385
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386
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387 #######################################################
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388 # main
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389 #
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390
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391 logger("INFO", "metacheck $version");
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392
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393 my ($document, $rootnode) = read_xml($metafile);
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394
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395 check_resource_meta($rootnode);
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396
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397 my $fnum = fs_read_files($docdir, "", \%files, \%dirs);
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398 logger("INFO", "$fnum files on FS");
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399 #foreach (keys %files) {logger(" file ($_): $files{$_}");}
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400
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401 check_files($rootnode, \%files);
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402 check_dirs($rootnode, \%dirs);
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403
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404 logger("INFO", "$warncnt warnings");
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405 logger("INFO", "$errcnt errors");
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406 if ($errcnt > 0) {
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407 logger("ABORT", "there were errors!");
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408 exit 1;
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409 } else {
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410 if ($fix_xml) {
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411 write_xml($document, $metafile);
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412 }
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413 logger("DONE", "index file checked successfully!");
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414 }
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