init

.config/i3blocks/time/time

@@ -0,0 +1,101 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use POSIX qw/strftime/;
+
+my $click   = $ENV{BLOCK_BUTTON} || 0;
+my $format  = $ENV{BLOCK_INSTANCE} || $ENV{STRFTIME_FORMAT} || "%H:%M";
+my $tz_file = shift || $ENV{TZ_FILE} || "$ENV{HOME}/.tz";
+$tz_file = glob($tz_file);
+my $default_tz = get_default_tz();
+
+my $tzones = $ENV{TZONES} || '$DEFAULT_TZ';
+$tzones =~ s/\$DEFAULT_TZ/$default_tz/g;
+my @tz_list = split(/,/, $tzones);
+my @tz_labels = split(/,/, $ENV{TZ_LABELS} || "");
+if (scalar(@tz_list) != scalar(@tz_labels)) {
+    @tz_labels = @tz_list;
+}
+
+my $current_tz;
+if ($click == 1) {
+    $current_tz = get_tz();
+
+    my %tzmap;
+    $tzmap{""} = $tz_list[0];
+    my $prev = $tz_list[0];
+    foreach my $tz (@tz_list) {
+        $tzmap{$prev} = $tz;
+        $prev = $tz;
+    }
+    $tzmap{$prev} = $tz_list[0];
+
+    if (exists $tzmap{$current_tz}) {
+        set_tz($tzmap{$current_tz});
+        $current_tz = $tzmap{$current_tz};
+    }
+}
+
+# How each timezone will be displayed in the bar.
+my %display_map;
+for (my $i=0; $i < scalar(@tz_list); $i++) {
+    $display_map{$tz_list[$i]} = $tz_labels[$i];
+}
+
+if (!defined $current_tz) {
+    $current_tz = get_tz();
+    set_tz($current_tz);
+}
+$ENV{TZ} = $current_tz;
+my $tz_display = "";
+if (!exists $display_map{$ENV{TZ}}) {
+    $ENV{TZ} = $tz_list[0];
+    set_tz($tz_list[0]);
+}
+$tz_display = $display_map{$ENV{TZ}};
+
+binmode(STDOUT, ":utf8");
+my $time = strftime($format, localtime());
+if ($tz_display eq "") {
+    print "$time\n";
+} else {
+    print "$time ($tz_display)\n";
+}
+
+sub get_tz {
+    my $current_tz;
+
+    if (-f $tz_file) {
+        open my $fh, '<', $tz_file || die "Couldn't open file: $tz_file";
+        $current_tz = <$fh>;
+        chomp $current_tz;
+        close $fh;
+    }
+
+    return $current_tz || get_default_tz();
+}
+
+sub set_tz {
+    my $tz = shift;
+
+    open my $fh, '>', $tz_file || die "Couldn't open file: $tz_file";
+    print $fh $tz;
+    close $fh;
+}
+
+sub get_default_tz {
+    my $tz = "Europe/London";
+
+    if (-f "/etc/timezone") {
+        open my $fh, '<', "/etc/timezone" || die "Couldn't open file: /etc/timezone";
+        $tz = <$fh>;
+        chomp $tz;
+        close $fh;
+    } elsif (-l "/etc/localtime") {
+        $tz = readlink "/etc/localtime";
+        $tz = (split /zoneinfo\//, $tz)[-1];
+    }
+
+    return $tz;
+}