[18457] | 1 | ###########################################################################
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| 2 | #
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| 3 | # inexport.pm -- useful utilities to support import.pl and export.pl
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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| 26 | package inexport;
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| 27 |
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| 28 | use strict;
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| 29 |
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| 30 | use util;
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| 31 | use GDBMUtils;
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| 32 |
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| 33 | sub new_vs_old_import_diff
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| 34 | {
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| 35 | my ($archive_info,$block_hash,$importdir) = @_;
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| 36 |
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| 37 | # First convert all files to absolute form
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| 38 | # This is to support the situation where the import folder is not
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| 39 | # the default
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| 40 |
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| 41 | my $prev_all_files = $archive_info->{'prev_import_filelist'};
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| 42 | my $full_prev_all_files = {};
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| 43 |
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| 44 | foreach my $prev_file (keys %$prev_all_files) {
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| 45 |
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| 46 | if (!&util::filename_is_absolute($prev_file)) {
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| 47 | my $full_prev_file = &util::filename_cat($ENV{'GSDLCOLLECTDIR'},$prev_file);
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| 48 | $full_prev_all_files->{$full_prev_file} = $prev_file;
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| 49 | }
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| 50 | else {
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| 51 | $full_prev_all_files->{$prev_file} = $prev_file;
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | # Figure out which are the new files, existing files and so
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| 56 | # by implication the files from the previous import that are not
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| 57 | # there any more => mark them for deletion
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| 58 | foreach my $curr_file (keys %{$block_hash->{'all_files'}}) {
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| 59 |
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| 60 | my $full_curr_file = $curr_file;
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| 61 |
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| 62 | # entry in 'all_files' is moved to either 'existing_files',
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| 63 | # 'deleted_files', or 'new_files'
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| 64 |
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| 65 | if (!&util::filename_is_absolute($curr_file)) {
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| 66 | # add in import dir to make absolute
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| 67 | $full_curr_file = &util::filename_cat($importdir,$curr_file);
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| 68 | }
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| 69 |
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| 70 | # figure of if new file or not
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| 71 | if (defined $full_prev_all_files->{$full_curr_file}) {
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| 72 | # had it before
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| 73 | $block_hash->{'existing_files'}->{$curr_file} = 1;
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| 74 | # Now remove it, so by end of loop only the files
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| 75 | # that need deleting are left
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| 76 |
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| 77 | delete $full_prev_all_files->{$full_curr_file};
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| 78 | }
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| 79 | else {
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| 80 | $block_hash->{'new_files'}->{$curr_file} = 1;
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| 81 | }
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| 82 |
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| 83 | delete $block_hash->{'all_files'}->{$curr_file};
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| 84 | }
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| 85 |
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| 86 | # By this point full_prev_all_files contains only the files
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| 87 | # that are not in the current import folder => i.e. files
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| 88 | # to be deleted
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| 89 | #
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| 90 | # The value in each key is its "local" import file name, which is what
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| 91 | # we want to use
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| 92 | my @deleted_files = values %$full_prev_all_files;
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| 93 | map { $block_hash->{'deleted_files'}->{$_} = 1 } @deleted_files;
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| 94 | }
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| 95 |
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| 96 | sub mark_docs_for_deletion
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| 97 | {
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| 98 | my ($archive_info,$deleted_files_ref,$archivedir,$verbosity) = @_;
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| 99 |
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| 100 | my $db_ext = &util::is_little_endian() ? ".ldb" : ".bdb";
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| 101 | my $doc_db = "archiveinf-doc$db_ext";
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| 102 | my $src_db = "archiveinf-src$db_ext";
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| 103 | my $arcinfo_doc_filename = &util::filename_cat ($archivedir, $doc_db);
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| 104 | my $arcinfo_src_filename = &util::filename_cat ($archivedir, $src_db);
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| 105 |
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| 106 |
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| 107 | # record files marked for deletion in arcinfo
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| 108 | foreach my $file (@$deleted_files_ref) {
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| 109 | # use 'archiveinf-src' GDBM file to look up all the OIDs
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| 110 | # this file is used in (note in most cases, it's just one OID)
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| 111 |
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| 112 | # An improvement would be to have the record read
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| 113 | # into a hash array
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| 114 | my $src_rec = GDBMUtils::gdbmRecordToHash($arcinfo_src_filename,$file);
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| 115 | my $oids = $src_rec->{'oid'};
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| 116 | foreach my $oid (@$oids) {
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| 117 |
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| 118 | # find out if it's an assoc file or main doc
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| 119 |
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| 120 | my $doc_rec = GDBMUtils::gdbmRecordToHash($arcinfo_doc_filename,$oid);
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| 121 | ## print STDERR "file = $file\n";
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| 122 |
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| 123 | if ($doc_rec->{'src-file'}->[0] eq $file) {
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| 124 | # mark it for deletion
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| 125 | if ($verbosity>1) {
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| 126 | print STDERR "$oid marked to be deleted\n";
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| 127 | }
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| 128 | $archive_info->set_status_info($oid,"D");
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| 129 |
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| 130 | my $val = &GDBMUtils::gdbmDatabaseGet($arcinfo_doc_filename,$oid);
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| 131 | $val =~ s/^<index-status>(.*)$/<index-status>D/m;
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| 132 | &GDBMUtils::gdbmDatabaseSet($arcinfo_doc_filename,$oid,$val);
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| 133 | }
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| 134 | else {
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| 135 | # assoc file => mark it for re-indexing (safest thing to do)
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| 136 | my $curr_status = $archive_info->get_status_info($oid);
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| 137 |
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| 138 |
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| 139 | if (defined($curr_status) && (($curr_status ne "D") && ($curr_status ne "R"))) {
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| 140 | if ($verbosity > 1) {
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| 141 | print STDERR "$oid marked for (potential) reindexing\n";
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| 142 | print STDERR " (because associated file $file deleted)\n";
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| 143 | }
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| 144 | $archive_info->set_status_info($oid,"R");
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| 145 |
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| 146 | my $val = &GDBMUtils::gdbmDatabaseGet($arcinfo_doc_filename,$oid);
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| 147 | $val =~ s/^<index-status>(.*)$/<index-status>R/m;
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| 148 | &GDBMUtils::gdbmDatabaseSet($arcinfo_doc_filename,$oid,$val);
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| 149 | }
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| 150 | }
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| 151 | }
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| 152 | }
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| 153 | }
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| 154 |
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| 155 |
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| 156 |
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| 157 | 1;
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