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

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Revision 136 - (show annotations)
Wed Jun 30 15:21:02 2010 UTC (12 years, 5 months ago) by dpavlin
File MIME type: text/plain
File size: 4788 byte(s)
revert dzen changes

1 #!/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 use Data::Dump qw/dump/;
12
13 my $dt = 3;
14 my $acpi_every = 10;
15
16 my $disk_blk_size = 512;
17
18 my $debug = shift @ARGV;
19 my $awesome = 0;
20
21 $|=1;
22
23 sub proc2hash {
24 my $f = shift;
25 return unless -f $f;
26 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 $value =~ s/ m[AVW]h*$//;
32 $h->{$key} = $value;
33 }
34 warn "$f ",dump( $h ) if ( $debug );
35 return $h;
36 }
37
38 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 return unless $bat =~ /\w+/;
61
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 sub unit {
71 my $v = shift;
72
73 warn "unit( $v )\n" if ($debug);
74
75 my @units = qw/b k M G/;
76 my $o = 0;
77
78 while ( ( $v / 10000 ) >= 1 ) {
79 $o++;
80 $v /= 1024;
81 }
82
83 if ( $v >= 1 ) {
84 return sprintf("%d%s", $v, $units[$o]);
85 } elsif ( $v == 0 ) {
86 return '';
87 } else {
88 return sprintf("%.1f%s", $v, $units[$o]);
89 }
90 }
91
92 my ( $lrx, $ltx ) = ( 0, 0 );
93 my ( $ld_r, $ld_w ) = ( 0, 0 );
94 my $bat = '';
95
96 my $i = 0;
97 my $sys_fs = '/sys/class/power_supply/BAT0';
98
99 while ( 1 ) {
100 my $s = strftime("%Y-%m-%d %H:%M:%S", localtime());
101
102 if ( $i % $acpi_every == 0 ) {
103 my $sysfs_path = glob "$sys_fs/*_full";
104 if ( $sysfs_path ) {
105
106 my $full = read_file( $sysfs_path );
107 $sysfs_path =~ s/_full/_now/;
108 my $now = read_file( $sysfs_path );
109 $bat = sprintf("%2d%% | ", $now * 100 / $full );
110
111 } elsif ( $proc_acpi_battery ) {
112
113 my $state = proc2hash( "$proc_acpi_battery/state" );
114
115 if ( $state->{'present rate'} =~ m/^\d+$/ && $state->{'present rate'} != 0 ) {
116 my $info = proc2hash( "$proc_acpi_battery/info" );
117
118 my $pcnt = $state->{'remaining capacity'} / $info->{'design capacity'};
119
120 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
123 warn "time = $time\n" if ($debug);
124
125 my $hh = int( $time );
126 my $mm = int( ( $time - $hh ) * 60 );
127 my $ss = ( $time * 3600 ) % 60;
128
129 $bat = sprintf("%s %2d%% %02d:%02d:%02d %3.1fW!| ",
130 substr($state->{'charging state'},0,1),
131 $pcnt * 100, $hh, $mm, $ss,
132 $state->{'present rate'} / 1000
133 );
134 }
135 }
136 } else {
137 $bat =~ s/!(\|\s)$/ $1/;
138 }
139 $i++;
140
141 my $load = read_file('/proc/loadavg');
142 chomp( $load );
143 $load =~ s!\s\d+/\d+.*!!;
144
145 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
152 my $net = read_file('/proc/net/dev');
153 my ( $rx, $tx ) = ( 0,0 );
154
155 foreach ( split(/\n/, $net) ) {
156 s/^\s+//;
157 s/:\s*/ /;
158 my @n = split(/\s+/, $_, 17);
159 #next unless ( $n[0] =~ s!(eth\d|ath\d):!! );
160 next unless $n[1] =~ m{^\d+$};
161
162 warn dump( @n ) if ($debug);
163 $rx += $n[1];
164 $tx += $n[9];
165 }
166 warn "rx: $rx tx: $tx\n" if ($debug);
167
168 my $net_rx = ( $rx - $lrx ) / $dt;
169 my $net_tx = ( $tx - $ltx ) / $dt;
170 ( $lrx, $ltx ) = ( $rx, $tx );
171
172 my $disk = read_file('/proc/diskstats');
173 my ( $d_r, $d_w ) = ( 0,0 );
174
175 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 my $out = sprintf("%s |%5s D %-5s|%5s > %-5s| %s%s | %s",
191 $load,
192 unit( $d_read ), unit( $d_write ),
193 unit( $net_rx ), unit( $net_tx ),
194 $bat, $temp,
195 $s,
196 );
197
198 print "$out\n";
199 if ( $awesome ) {
200 open(my $fh, '|-', 'awesome-client') || die "can't pipe to awesome-client: $!";
201 print $fh
202 $awesome == 3 ? qq{mytextbox.text="$out"\n}
203 : "0 widget_tell mystatusbar dwm-status text $out\n"
204 ;
205 close($fh);
206 }
207
208 sleep $dt;
209 }
210

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