minions/bin/mksheet

#!/usr/bin/perl

## Author: Alois Mahdal at zxcvb cz
# Analyzer for a very primitive remote logging system Front-end is htlogr.pm,
# back-end is htlog.cgi

# 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 htsheet;
use strict;
use warnings;

use Getopt::Long;

sub guess_subsets;

$| = 1;
my $LOGFILE     = "";
my $STORAGE     = "split_csv";
my $PREFIX      = "";
my @SUBSETS     = qw//;

GetOptions(
    "input=s"   => \$LOGFILE,
    "storage=s" => \$STORAGE,
    "prefix=s"  => \$PREFIX,
    "subset=s"  => \@SUBSETS
);

unless ($LOGFILE) {
    warn "usage: $0 --input=htlog.log [--prefix=mytest] [--storage=csv_render] [--subset=pattern]*\n";
    exit 1;
}
unless (@SUBSETS) {
    warn "no --subset(s) specified, will try to guess from tag";
}

print "loading log...";
my $s = htsheet->load({file => $LOGFILE});
print "OK\n";

print "parsing log...";
$s->parse_all;
my @tags = @{$s->get_unique_values_of("Tag")};
print "OK\n";


mkdir $STORAGE;
print "processing tags:\n";
# take each tag and process data from it based on subsets
# so that within tag we have control over which lines contain parseable data
TAG: foreach my $tag (@tags) {
    print "  $tag...";

    my $t = $s->grep($tag);

    my @subsets_to_go = guess_subsets($tag)
        or warn "no subsets available for tag $tag\n";

    SUBSET: foreach my $subset (@subsets_to_go) {
        # grep down from tag to subset
        my $s = $t->grep($subset);
        $s->parse_all;

        # save to separate CSV
        my $fname = sprintf(
            "%s/%s%s--%s.csv",
            $STORAGE,
            ($PREFIX ? "$PREFIX--" : ""),
            $tag,
            $subset
        );
        open my $fh, ">", $fname    or die "could not clobber $fname: $!\n";
        print $fh $s->to_csv;
        close $fh or die "could not close file $_: $!";
    }
    print "OK\n";
}


sub guess_subsets {
    my $_ = shift;
    return @SUBSETS if @SUBSETS;
    return qw/ rendered pmfree /    if m|sunspider|;
    return qw/ avg_rr_queue /       if m|showlist_pl|;
}