1 | #!/usr/bin/perl -w
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2 |
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3 | ###########################################################################
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4 | #
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5 | # update.pl
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6 | #
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7 | # A component of the Greenstone digital library software
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8 | # from the New Zealand Digital Library Project at the
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9 | # University of Waikato, New Zealand.
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10 | #
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11 | # Copyright (C) 1999 New Zealand Digital Library Project
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12 | #
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13 | # This program is free software; you can redistribute it and/or modify
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14 | # it under the terms of the GNU General Public License as published by
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15 | # the Free Software Foundation; either version 2 of the License, or
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16 | # (at your option) any later version.
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17 | #
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18 | # This program is distributed in the hope that it will be useful,
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19 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 | # GNU General Public License for more details.
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22 | #
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23 | # You should have received a copy of the GNU General Public License
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24 | # along with this program; if not, write to the Free Software
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25 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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26 | #
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27 | ###########################################################################
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28 |
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29 |
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30 | # This program updates any collections that are based on mirrors of
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31 | # web sites after a certain interval. It first checks that the
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32 | # collection is a mirrored collection and whether it is time to
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33 | # update the collection. If so, it updates the mirror with
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34 | # mirror.pl; then imports the collection with import.pl; then
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35 | # builds the collection with buildcol.pl; then replaces the
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36 | # existing index directory with the new building directory.
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37 | # The etc/mirror.log file stores the STDOUT output.
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38 |
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39 |
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40 | BEGIN {
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41 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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42 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
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43 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
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44 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/plugins");
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45 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/classify");
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46 | }
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47 |
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48 | use arcinfo;
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49 | use colcfg;
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50 | use util;
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51 | use parsargv;
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52 |
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53 | sub print_usage {
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54 | print STDERR "\n";
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55 | print STDERR "update.pl: Updates a collection if it has been set up to mirror\n";
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56 | print STDERR " a website. Calls mirror.pl to do the mirroring.\n\n";
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57 | print STDERR " usage: $0 [options] collection-name\n\n";
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58 | print STDERR " options:\n";
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59 | print STDERR " -verbosity number 0=none, 3=lots\n";
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60 | print STDERR " -importdir directory Where to place the mirrored material\n";
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61 | print STDERR " -archivedir directory Where the converted material ends up\n";
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62 | }
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63 |
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64 |
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65 | &main ();
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66 |
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67 | sub main {
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68 | my ($verbosity, $importdir, $archivedir, $builddir, $indexdir, $etcdir,
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69 | $mirror, $interval, $logfile,
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70 | $collection, $configfilename, $collectcfg);
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71 |
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72 | if (!parsargv::parse(\@ARGV,
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73 | 'verbosity/\d+/2', \$verbosity,
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74 | 'importdir/.*/', \$importdir,
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75 | 'archivedir/.*/', \$archivedir )) {
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76 | &print_usage();
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77 | die "\n";
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78 | }
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79 |
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80 | # get and check the collection name
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81 | if (($collection = &util::use_collection(@ARGV)) eq "") {
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82 | &print_usage();
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83 | die "\n";
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84 | }
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85 |
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86 | # check the configuration file for options
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87 | $configfilename = &util::filename_cat ($ENV{'GSDLCOLLECTDIR'}, "etc/collect.cfg");
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88 | if (-e $configfilename) {
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89 | $collectcfg = &colcfg::read_collect_cfg ($configfilename);
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90 | if (defined $collectcfg->{'importdir'} && $importdir eq "") {
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91 | $importdir = $collectcfg->{'importdir'};
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92 | }
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93 | if (defined $collectcfg->{'archivedir'} && $archivedir eq "") {
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94 | $archivedir = $collectcfg->{'archivedir'};
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95 | }
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96 | if (defined $collectcfg->{'mirror'}) {
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97 | $mirror = $collectcfg->{'mirror'};
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98 | }
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99 | } else {
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100 | die "Couldn't find the configuration file $configfilename\n";
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101 | }
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102 |
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103 | # fill in the default import and archives directories if none
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104 | # were supplied, turn all \ into / and remove trailing /
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105 | $importdir = "$ENV{'GSDLCOLLECTDIR'}/import" if $importdir eq "";
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106 | $importdir =~ s/[\\\/]+/\//g;
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107 | $importdir =~ s/\/$//;
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108 | $archivedir = "$ENV{'GSDLCOLLECTDIR'}/archives" if $archivedir eq "";
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109 | $archivedir =~ s/[\\\/]+/\//g;
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110 | $archivedir =~ s/\/$//;
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111 |
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112 | $indexdir = "$ENV{'GSDLCOLLECTDIR'}/index";
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113 | $builddir = "$ENV{'GSDLCOLLECTDIR'}/building";
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114 | $etcdir = "$ENV{'GSDLCOLLECTDIR'}/etc";
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115 | $logfile = "$etcdir/mirror.log";
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116 |
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117 | # if there is no mirror information, we're all done
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118 | if (!defined($mirror)) {
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119 | print "No mirror command in $configfilename\n";
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120 | exit;
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121 | }
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122 |
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123 | # read the mirror interval
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124 | if (($#$mirror == 1) && ($$mirror[0] =~ /interval/)){
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125 | $interval = $$mirror[1];
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126 | } else {
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127 | die "Malformed mirror information: use \"mirror interval N\"\n" .
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128 | "where N is the number of days between mirrors.\n";
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129 | }
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130 |
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131 | # make sure there is an import directory
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132 | if (! -e "$importdir") {
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133 | &util::mk_dir($importdir);
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134 | }
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135 |
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136 | print "archives directory: $archivedir\n";
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137 | print " import directory: $importdir\n";
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138 | print " etc directory: $etcdir\n";
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139 | print " interval: $interval days\n";
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140 |
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141 | # how many days is it since the last mirror
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142 | my $seconds = 0;
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143 | if (-e "$logfile") {
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144 | my $now = time;
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145 | my @stats = stat("$logfile");
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146 | my $then = $stats[9];
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147 | # calculate the number of days since the last mirror
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148 | $seconds = $now - $then;
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149 | }
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150 | my $days = (($seconds / 3600) / 24);
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151 |
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152 | # Is it too soon to start mirroring?
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153 | if (($seconds > 0) && ($interval > $days)) {
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154 | printf "Mirror not started: only %.1f days have passed\n", $days;
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155 | exit;
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156 | }
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157 |
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158 | # Mirror the remote site
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159 | open(WLOG, ">$logfile");
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160 | print WLOG "Starting mirror at " . time . "\n\n";
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161 |
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162 | my $command = "mirror.pl $collection";
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163 | print WLOG "Executing: $command\n";
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164 | print WLOG `$command`;
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165 |
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166 | # Import the collection
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167 | print WLOG "\n\nStarting import at " . time . "\n\n";
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168 | $command = "import.pl -removeold $collection";
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169 | print WLOG "Executing: $command\n";
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170 | print WLOG `$command`;
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171 |
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172 | # Build the collection
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173 | print WLOG "\n\nStarting buildcol.pl at " . time . "\n\n";
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174 | $command = "buildcol.pl $collection";
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175 | print WLOG "Executing: $command\n";
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176 | print WLOG `$command`;
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177 |
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178 | # Renaming the building directory to index
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179 | print WLOG "\n\nRenaming building directory at " . time . "\n\n";
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180 | if (-e $indexdir) {
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181 | &util::mv($indexdir, "$indexdir.old");
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182 | &util::mv($builddir, $indexdir);
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183 | &util::rm_r ("$indexdir.old");
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184 | } else {
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185 | &util::mv($builddir, $indexdir);
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186 | }
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187 |
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188 |
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189 | close WLOG;
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190 |
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191 | }
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192 |
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193 |
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194 |
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195 |
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196 |
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