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#!/usr/bin/perl
# zoneinfo2ucode.pl - Make ucode module from /usr/share/zoneinfo
# Execute from within root of Luci feed, usually feeds/luci
use strict;
my %TZ;
my $tzdin = $ARGV[0] || "/usr/share/zoneinfo";
my $tzdout = $ARGV[1] || "./modules/luci-base/ucode/zoneinfo.uc";
local $/ = "\012";
open( ZTAB, "< $tzdin/zone.tab" ) || die "open($tzdin/zone.tab): $!";
while( ! eof ZTAB ) {
chomp( my $line = readline ZTAB );
next if $line =~ /^#/ || $line =~ /^\s+$/;
my ( undef, undef, $zone, @comment ) = split /\s+/, $line;
printf STDERR "%-40s", $zone;
if( open ZONE, "< $tzdin/$zone" ) {
seek ZONE, -2, 2;
while( tell(ZONE) > 0 ) {
read ZONE, my $char, 1;
( $char eq "\012" ) ? last : seek ZONE, -2, 1;
}
chomp( my $tz = readline ZONE );
print STDERR ( $tz || "(no tzinfo found)" ), "\n";
close ZONE;
if( $tz ) {
$zone =~ s/_/ /g;
$TZ{$zone} = $tz;
}
}
else
{
print STDERR "open($tzdin/$zone): $!\n";
}
}
close ZTAB;
# Add Etc/GMT zones from manually as they are not in zone.tab
$TZ{"Etc/GMT"} = "GMT0";
$TZ{"Etc/GMT-1"} = "<+01>-1";
$TZ{"Etc/GMT-2"} = "<+02>-2";
$TZ{"Etc/GMT-3"} = "<+03>-3";
$TZ{"Etc/GMT-4"} = "<+04>-4";
$TZ{"Etc/GMT-5"} = "<+05>-5";
$TZ{"Etc/GMT-6"} = "<+06>-6";
$TZ{"Etc/GMT-7"} = "<+07>-7";
$TZ{"Etc/GMT-8"} = "<+08>-8";
$TZ{"Etc/GMT-9"} = "<+09>-9";
$TZ{"Etc/GMT-10"} = "<+10>-10";
$TZ{"Etc/GMT-11"} = "<+11>-11";
$TZ{"Etc/GMT-12"} = "<+12>-12";
$TZ{"Etc/GMT-13"} = "<+13>-13";
$TZ{"Etc/GMT-14"} = "<+14>-14";
$TZ{"Etc/GMT+1"} = "<-01>1";
$TZ{"Etc/GMT+2"} = "<-02>2";
$TZ{"Etc/GMT+3"} = "<-03>3";
$TZ{"Etc/GMT+4"} = "<-04>4";
$TZ{"Etc/GMT+5"} = "<-05>5";
$TZ{"Etc/GMT+6"} = "<-06>6";
$TZ{"Etc/GMT+7"} = "<-07>7";
$TZ{"Etc/GMT+8"} = "<-08>8";
$TZ{"Etc/GMT+9"} = "<-09>9";
$TZ{"Etc/GMT+10"} = "<-10>10";
$TZ{"Etc/GMT+11"} = "<-11>11";
$TZ{"Etc/GMT+12"} = "<-12>12";
open(O, "> $tzdout") || die "open($tzdout): $!\n";
print STDERR "Writing time zones to $tzdout ... ";
print O <<HEAD;
// Autogenerated by zoneinfo2ucode.pl
export default {
HEAD
foreach my $zone ( sort keys %TZ ) {
printf O "\t'%s': '%s',\n", $zone, $TZ{$zone}
}
print O "};\n";
close O;
print STDERR "done\n";
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