rss2html/plot_intervals

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#!/usr/bin/perl
use warnings;
use strict;
use TimeSeries;
my $wanted_feed_id = shift;
my $current_feed_id = -1;
my @updates_in_interval;
my $ts = TimeSeries->new(style => 'impulses');
$ts->legend('old', 'new');
$ts->finalresolution(100);
my @files = glob("test.log*");
@files = sort { -M $b <=> -M $a } @files;
my $current;
my @updates;
for my $file (@files) {
open my $fh, '<', $file;
while (<$fh>) {
if (/ Rss2Html.FeedList feed: (\d+) .*/) {
$current_feed_id = $1;
}
next unless $current_feed_id == $wanted_feed_id;
if (/Rss2Html.FeedList [ ]
\d\d\d\d-\d\d-\d\d [ ] \w\w\w [ ] \d\d:\d\d:\d\d
[ ] \.\. [ ]
(\d\d\d\d-\d\d-\d\d) [ ] \w\w\w [ ] (\d\d:\d\d:\d\d)
: [ ]
(\d+) [ ] seconds
/x
) {
$current = { time => "$1T$2", interval => $3 };
}
if (/Rss2Html.FeedList need to update/) {
push @updates, $current;
}
if (/Rss2Html.Feed item .* new/) {
$current->{new}++;
}
}
}
for (@updates) {
$ts->add_timestring($_->{time},
$_->{new} ? (0, $_->{interval})
: ($_->{interval}, 0 )
);
}
print $ts->plot;