/[scripts]/trunk/dwm-status.pl
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Annotation of /trunk/dwm-status.pl

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Revision 136 - (hide annotations)
Wed Jun 30 15:21:02 2010 UTC (13 years, 9 months ago) by dpavlin
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1 dpavlin 30 #!/usr/bin/perl -w
2    
3     # dwm-status.pl
4     #
5     # 05/26/07 23:08:31 CEST Dobrica Pavlinusic <dpavlin@rot13.org>
6    
7     use strict;
8     use POSIX qw/strftime/;
9     use File::Slurp;
10     use Time::HiRes;
11 dpavlin 59 use Data::Dump qw/dump/;
12 dpavlin 30
13     my $dt = 3;
14 dpavlin 31 my $acpi_every = 10;
15 dpavlin 30
16 dpavlin 35 my $disk_blk_size = 512;
17    
18 dpavlin 31 my $debug = shift @ARGV;
19 dpavlin 134 my $awesome = 0;
20 dpavlin 30
21     $|=1;
22    
23     sub proc2hash {
24     my $f = shift;
25 dpavlin 39 return unless -f $f;
26 dpavlin 30 open(my $fh, '<', $f) || die "can't open $f: $!";
27     my $h;
28     while(<$fh>) {
29     chomp;
30     my ( $key, $value ) = split(/:\s+/, $_, 2);
31 dpavlin 105 $value =~ s/ m[AVW]h*$//;
32 dpavlin 30 $h->{$key} = $value;
33     }
34 dpavlin 38 warn "$f ",dump( $h ) if ( $debug );
35 dpavlin 30 return $h;
36     }
37    
38 dpavlin 39 my $proc_acpi_battery;
39     sub find_proc_acpi {
40     my ( $path, $check ) = @_;
41    
42     if ( -e "/proc/acpi/$path" ) {
43     opendir(my $items, "/proc/acpi/$path") || die "can't open /proc/acpi/$path: $!";
44     foreach my $item ( readdir( $items ) ) {
45     $check->( $item ) && last;
46     }
47     }
48     }
49    
50     my $proc_acpi_thermal_zone_temperature;
51     find_proc_acpi('thermal_zone', sub {
52     my $thm = shift;
53     return if ( ! -e "/proc/acpi/thermal_zone/$thm/temperature" );
54     warn "# using thermal zone $thm\n" if ( $debug );
55     $proc_acpi_thermal_zone_temperature = "/proc/acpi/thermal_zone/$thm/temperature";
56     });
57    
58     find_proc_acpi('battery', sub {
59     my $bat = shift;
60 dpavlin 56 return unless $bat =~ /\w+/;
61 dpavlin 39
62     warn "# testing battery $bat\n" if ( $debug );
63    
64     if ( proc2hash( "/proc/acpi/battery/$bat/info" )->{present} eq 'yes' ) {
65     $proc_acpi_battery = "/proc/acpi/battery/$bat";
66     warn "using $proc_acpi_battery to monitor battery\n";
67     }
68     });
69    
70 dpavlin 30 sub unit {
71 dpavlin 136 my $v = shift;
72 dpavlin 31
73     warn "unit( $v )\n" if ($debug);
74    
75 dpavlin 35 my @units = qw/b k M G/;
76 dpavlin 30 my $o = 0;
77    
78 dpavlin 40 while ( ( $v / 10000 ) >= 1 ) {
79 dpavlin 30 $o++;
80     $v /= 1024;
81     }
82    
83 dpavlin 31 if ( $v >= 1 ) {
84 dpavlin 136 return sprintf("%d%s", $v, $units[$o]);
85 dpavlin 33 } elsif ( $v == 0 ) {
86 dpavlin 136 return '';
87 dpavlin 31 } else {
88 dpavlin 136 return sprintf("%.1f%s", $v, $units[$o]);
89 dpavlin 31 }
90 dpavlin 30 }
91    
92     my ( $lrx, $ltx ) = ( 0, 0 );
93 dpavlin 35 my ( $ld_r, $ld_w ) = ( 0, 0 );
94 dpavlin 80 my $bat = '';
95 dpavlin 30
96     my $i = 0;
97 dpavlin 80 my $sys_fs = '/sys/class/power_supply/BAT0';
98 dpavlin 30
99     while ( 1 ) {
100     my $s = strftime("%Y-%m-%d %H:%M:%S", localtime());
101    
102 dpavlin 80 if ( $i % $acpi_every == 0 ) {
103 dpavlin 96 my $sysfs_path = glob "$sys_fs/*_full";
104     if ( $sysfs_path ) {
105 dpavlin 30
106 dpavlin 96 my $full = read_file( $sysfs_path );
107     $sysfs_path =~ s/_full/_now/;
108     my $now = read_file( $sysfs_path );
109 dpavlin 136 $bat = sprintf("%2d%% | ", $now * 100 / $full );
110 dpavlin 89
111     } elsif ( $proc_acpi_battery ) {
112    
113 dpavlin 80 my $state = proc2hash( "$proc_acpi_battery/state" );
114 dpavlin 30
115 dpavlin 80 if ( $state->{'present rate'} =~ m/^\d+$/ && $state->{'present rate'} != 0 ) {
116     my $info = proc2hash( "$proc_acpi_battery/info" );
117 dpavlin 30
118 dpavlin 80 my $pcnt = $state->{'remaining capacity'} / $info->{'design capacity'};
119 dpavlin 30
120 dpavlin 80 my $time = $state->{'remaining capacity'} / ( $state->{'present rate'} );
121     $time = ( $info->{'design capacity'} - $state->{'remaining capacity'} ) / $state->{'present rate'} if ( $state->{'charging state'} eq 'charging' );
122 dpavlin 31
123 dpavlin 80 warn "time = $time\n" if ($debug);
124 dpavlin 30
125 dpavlin 80 my $hh = int( $time );
126     my $mm = int( ( $time - $hh ) * 60 );
127     my $ss = ( $time * 3600 ) % 60;
128 dpavlin 30
129 dpavlin 136 $bat = sprintf("%s %2d%% %02d:%02d:%02d %3.1fW!| ",
130 dpavlin 80 substr($state->{'charging state'},0,1),
131     $pcnt * 100, $hh, $mm, $ss,
132     $state->{'present rate'} / 1000
133     );
134 dpavlin 32 }
135 dpavlin 80 }
136 dpavlin 136 } else {
137     $bat =~ s/!(\|\s)$/ $1/;
138 dpavlin 30 }
139     $i++;
140    
141     my $load = read_file('/proc/loadavg');
142     chomp( $load );
143     $load =~ s!\s\d+/\d+.*!!;
144    
145 dpavlin 39 my $temp = '';
146     if ( $proc_acpi_thermal_zone_temperature ) {
147     $temp = read_file( $proc_acpi_thermal_zone_temperature );
148     chomp( $temp );
149     $temp =~ s!^.*:\s+!!;
150     }
151 dpavlin 30
152     my $net = read_file('/proc/net/dev');
153     my ( $rx, $tx ) = ( 0,0 );
154    
155     foreach ( split(/\n/, $net) ) {
156     s/^\s+//;
157 dpavlin 115 s/:\s*/ /;
158 dpavlin 30 my @n = split(/\s+/, $_, 17);
159 dpavlin 112 #next unless ( $n[0] =~ s!(eth\d|ath\d):!! );
160     next unless $n[1] =~ m{^\d+$};
161 dpavlin 30
162     warn dump( @n ) if ($debug);
163 dpavlin 112 $rx += $n[1];
164 dpavlin 115 $tx += $n[9];
165 dpavlin 30 }
166     warn "rx: $rx tx: $tx\n" if ($debug);
167    
168 dpavlin 35 my $net_rx = ( $rx - $lrx ) / $dt;
169     my $net_tx = ( $tx - $ltx ) / $dt;
170 dpavlin 30 ( $lrx, $ltx ) = ( $rx, $tx );
171    
172 dpavlin 35 my $disk = read_file('/proc/diskstats');
173     my ( $d_r, $d_w ) = ( 0,0 );
174 dpavlin 30
175 dpavlin 35 foreach ( split(/\n/, $disk) ) {
176     s/^\s+//;
177     my @d = split(/\s+/, $_, 17);
178     next unless ( $d[2] =~ m/^[sh]d\w$/ );
179    
180     warn dump( @d ) if ($debug);
181     $d_r += $d[5] * $disk_blk_size;
182     $d_w += $d[7] * $disk_blk_size;
183     }
184     warn "d_r: $d_r d_w: $d_w\n" if ($debug);
185    
186     my $d_read = ( $d_r - $ld_r ) / $dt;
187     my $d_write = ( $d_w - $ld_w ) / $dt;
188     ( $ld_r, $ld_w ) = ( $d_r, $d_w );
189    
190 dpavlin 136 my $out = sprintf("%s |%5s D %-5s|%5s > %-5s| %s%s | %s",
191 dpavlin 35 $load,
192 dpavlin 136 unit( $d_read ), unit( $d_write ),
193     unit( $net_rx ), unit( $net_tx ),
194 dpavlin 35 $bat, $temp,
195 dpavlin 134 $s,
196 dpavlin 35 );
197    
198 dpavlin 108 print "$out\n";
199 dpavlin 67 if ( $awesome ) {
200     open(my $fh, '|-', 'awesome-client') || die "can't pipe to awesome-client: $!";
201 dpavlin 108 print $fh
202     $awesome == 3 ? qq{mytextbox.text="$out"\n}
203     : "0 widget_tell mystatusbar dwm-status text $out\n"
204     ;
205 dpavlin 67 close($fh);
206     }
207 dpavlin 57
208 dpavlin 30 sleep $dt;
209     }
210    

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