bin/battery.pl,setup.sh: Support different battery devices names.

[config/dotfiles.git] / bin / battery.pl

diff --git a/bin/battery.pl b/bin/battery.pl
index 6a9ce2cbb21f55c1799cf6bbfc7cfee04fa0d4aa..0a802e8f31a7605dc37a2dbcfe28408c2dfe9f47 100755 (executable)
--- a/bin/battery.pl
+++ b/bin/battery.pl
@@ -1,28 +1,60 @@
 #!/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;
 
 
-my $path = '/sys/class/power_supply/BAT0/uevent';
+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/class/power_supply/BAT*.\n";
+    exit 1;
+}
+if (scalar @ARGV == 1) {
+    @ARGV = ('', $ARGV[0]);
+}
+
+my $path = "$ARGV[1]/uevent";
 
 # No battery available.
-if (! -e $path) {
-    exit;
+if (not -e $path) {
+    print STDERR "'$path' not found.\n";
+    exit 1;
 }
 
-my $screen_mode = (defined $ARGV[0] and $ARGV[0] eq '-s');
-my $tmux_mode   = (defined $ARGV[0] and $ARGV[0] eq '-t');
+my $screen_mode = ($ARGV[0] eq '-s');
+my $tmux_mode   = ($ARGV[0] eq '-t');
 
 my %battery;
 
-open my $file, '<', $path;
+open my $file, '<', $path or die $!;
 while (<$file>) {
     /^POWER_SUPPLY_([A-Z_]+)=(.+)$/;
     $battery{$1} = $2;
 }
-close $file;
+close $file or die $!;
+
+# New names ...
+if (defined $battery{ENERGY_NOW}) {
+    $battery{CHARGE_NOW}  = $battery{ENERGY_NOW};
+    $battery{CHARGE_FULL} = $battery{ENERGY_FULL};
+}
 
 my $charge = int($battery{CHARGE_NOW} / $battery{CHARGE_FULL} * 100);
 
@@ -38,6 +70,7 @@ if ($screen_mode) {
     }
 
     print "\005{+$color}$charge%\005{-}\n";
+
 # Same in tmux mode.
 } elsif ($tmux_mode) {
     my $color;
@@ -51,7 +84,7 @@ if ($screen_mode) {
 
     print "#[fg=$color,bold]$charge%#[default]\n";
 
-# Just text output.
+# Plain text output.
 } else {
     print "$charge%\n";
 }