Move to shell/ in preparation for merge into new dotfiles repository

[config/dotfiles.git] / shell / bin / temperature.pl

diff --git a/shell/bin/temperature.pl b/shell/bin/temperature.pl
new file mode 100755 (executable)
index 0000000..42eaffe
--- /dev/null
+++ b/shell/bin/temperature.pl
@@ -0,0 +1,96 @@
+#!/usr/bin/perl
+
+# Copyright (C) 2011-2012  Simon Ruderich
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+use strict;
+use warnings;
+
+
+if (scalar @ARGV != 1 and (scalar @ARGV != 2 or not $ARGV[0] =~ /-[st]/)) {
+    print STDERR "Usage: $0 [-s | -t] <path/to/device>\n";
+    print STDERR "\n";
+    print STDERR "Normally this is /sys/devices/platform/*.\n";
+    exit 1;
+}
+if (scalar @ARGV == 1) {
+    @ARGV = ('', $ARGV[0]);
+}
+
+my $temperature_path = "$ARGV[1]/temp1_input";
+my $critical_path    = "$ARGV[1]/temp1_crit";
+
+# No temperature information available.
+if (not -e $temperature_path or not -e $critical_path) {
+    print STDERR "'$temperature_path' or '$critical_path' not found.\n";
+    exit 1;
+}
+
+my $screen_mode = ($ARGV[0] eq '-s');
+my $tmux_mode   = ($ARGV[0] eq '-t');
+
+my $temperature;
+my $critical;
+
+my $file;
+open $file, '<', $temperature_path or die $!;
+$temperature = <$file>;
+close $file or die $!;
+open $file, '<', $critical_path or die $!;
+$critical = <$file>;
+close $file or die $!;
+
+my $value = int($temperature / 1000);
+my $risk  = ($critical - $temperature)/$critical;
+
+$value .= "\xb0"; # degree symbol in UTF-8
+
+# GNU screen mode with colors.
+if ($screen_mode) {
+    my $color;
+    if ($risk < 0) {
+        $color = 'br r'; # bold reverse
+    } elsif ($risk < 0.1) {
+        $color = 'b r';
+    } elsif ($risk < 0.2) {
+        $color = 'b y';
+    } else {
+        $color = 'b g';
+    }
+
+    print "\005{+$color}$value\005{-}\n";
+
+# Same in tmux mode.
+} elsif ($tmux_mode) {
+    my $color;
+    my $style = 'bold';
+    if ($risk < 0) {
+        $color = 'red';
+        $style = 'reverse'; # blink doesn't work for me
+    } elsif ($risk < 0.1) {
+        $color = 'red';
+    } elsif ($risk < 0.2) {
+        $color = 'yellow';
+    } else {
+        $color = 'green';
+    }
+
+    print "#[fg=$color,$style]$value#[default]\n";
+
+# Plain text output.
+} else {
+    print "$value\n";
+}