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128 lines
3.7 KiB
128 lines
3.7 KiB
#!/usr/bin/perl -w
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#
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# Vzic - a program to convert Olson timezone database files into VZTIMEZONE
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# files compatible with the iCalendar specification (RFC2445).
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#
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# Copyright (C) 2001 Ximian, Inc.
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# Copyright (C) 2003 Damon Chaplin.
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#
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# Author: Damon Chaplin <damon@gnome.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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# This merges in a new set of VTIMEZONE files with the 'master' set. It only
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# updates the files in the master set if the VTIMEZONE component has really
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# been changes. Note that the TZID normally includes the date the VTIMEZONE
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# file was generated on, so we have to ignore this when comparing the files.
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#
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# Set these to the toplevel directories of the 2 sets of VTIMEZONE files.
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#$MASTER_ZONEINFO_DIR = "/home/damon/cvs/libical/zoneinfo";
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$MASTER_ZONEINFO_DIR = "/usr/share/libical-evolution/zoneinfo";
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$NEW_ZONEINFO_DIR = "/home/damon/src/vzic-1.0/zoneinfo";
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# Set this to 1 if you have version numbers in the TZID like libical.
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$LIBICAL_VERSIONING = 1;
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# Set this to 0 for dry-runs, and 1 to actually update.
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$DO_UPDATES = 1;
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# Save this so we can restore it later.
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$input_record_separator = $/;
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chdir $NEW_ZONEINFO_DIR
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|| die "Can't cd to $NEW_ZONEINFO_DIR";
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foreach $new_file (`find -name "*.ics"`) {
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# Get rid of './' at start and whitespace at end.
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$new_file =~ s/^\.\///;
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$new_file =~ s/\s+$//;
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# print "File: $new_file\n";
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open (NEWZONEFILE, "$new_file")
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|| die "Can't open file: $NEW_ZONEINFO_DIR/$new_file";
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undef $/;
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$new_contents = <NEWZONEFILE>;
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$/ = $input_record_separator;
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close (NEWZONEFILE);
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$master_file = $MASTER_ZONEINFO_DIR . "/$new_file";
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# print "Master File: $master_file\n";
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$copy_to_master = 0;
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# If the ics file exists in the master copy we have to compare them,
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# otherwise we can just copy the new file into the master directory.
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if (-e $master_file) {
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open (MASTERZONEFILE, "$master_file")
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|| die "Can't open file: $master_file";
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undef $/;
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$master_contents = <MASTERZONEFILE>;
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$/ = $input_record_separator;
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close (MASTERZONEFILE);
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$new_contents_copy = $new_contents;
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# Strip the TZID from both contents.
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$new_contents_copy =~ s/^TZID:\S+$//m;
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$new_tzid = $&;
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$master_contents =~ s/^TZID:\S+$//m;
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$master_tzid = $&;
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# print "Matched: $master_tzid\n";
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if ($new_contents_copy ne $master_contents) {
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print "$new_file has changed. Updating...\n";
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$copy_to_master = 1;
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if ($LIBICAL_VERSIONING) {
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# We bump the version number in the new file.
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$master_tzid =~ m%_(\d+)/%;
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$version_num = $1;
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# print "Version: $version_num\n";
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$version_num++;
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$new_tzid =~ s%_(\d+)/%_$version_num/%;
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# print "New TZID: $new_tzid\n";
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$new_contents =~ s/^TZID:\S+$/$new_tzid/m;
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}
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}
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} else {
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print "$new_file doesn't exist in master directory. Copying...\n";
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$copy_to_master = 1;
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}
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if ($copy_to_master) {
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# print "Updating: $new_file\n";
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if ($DO_UPDATES) {
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open (MASTERZONEFILE, ">$master_file")
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|| die "Can't create file: $master_file";
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print MASTERZONEFILE $new_contents;
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close (MASTERZONEFILE);
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}
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}
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}
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