-#!/usr/bin/env perl
+#!/usr/bin/perl -CA
use 5.018;
use warnings;
use utf8;
use open qw( :std :utf8 );
use experimental qw( lexical_subs );
-our $VERSION = '1.04';
+our $VERSION = '1.05';
use Getopt::Long '2.33', qw( :config gnu_getopt );
-sub podexit {
- require Pod::Usage;
- Pod::Usage::pod2usage(-exitval => 0, -perldocopt => '-oman', @_);
-}
my %opt;
GetOptions(\%opt,
'color|c!',
);
},
'markers|m=s',
+ 'graph-format=s' => sub {
+ $opt{'graph-format'} = substr $_[1], 0, 1;
+ },
+ 'spark:s' => sub {
+ $opt{spark} = [split //, $_[1] || '⎽▁▂▃▄▅▆▇█'];
+ },
'stat|s!',
'unmodified|u!',
'width|w=i',
- 'usage|h' => sub { podexit() },
- 'help' => sub { podexit(-verbose => 2) },
+ 'usage|h' => sub {
+ local $/;
+ my $pod = readline *DATA;
+ $pod =~ s/^=over\K/ 22/m; # indent options list
+ $pod =~ s/^=item \N*\n\n\N*\n\K(?:(?:^=over.*?^=back\n)?(?!=)\N*\n)*/\n/msg;
+
+ require Pod::Usage;
+ my $parser = Pod::Usage->new;
+ $parser->select('SYNOPSIS', 'OPTIONS');
+ $parser->output_string(\my $contents);
+ $parser->parse_string_document($pod);
+
+ $contents =~ s/\n(?=\n\h)//msg; # strip space between items
+ print $contents;
+ exit;
+ },
+ 'help|?' => sub {
+ require Pod::Usage;
+ Pod::Usage::pod2usage(
+ -exitval => 0, -perldocopt => '-oman', -verbose => 2,
+ );
+ },
) or exit 64; # EX_USAGE
$opt{width} ||= $ENV{COLUMNS} || 80;
$opt{color} //= -t *STDOUT; # enable on tty
+$opt{'graph-format'} //= '-';
$opt{trim} *= $opt{width} / 100 if $opt{trimpct};
$opt{units} = [split //, ' kMGTPEZYyzafpnμm'] if $opt{'human-readable'};
$opt{anchor} //= qr/\A/;
$opt{'value-length'} = 6 if $opt{units};
+$opt{'value-length'} = 1 if $opt{unmodified};
my (@lines, @values, @order);
+$SIG{QUIT} = \&show_stat;
+$SIG{ALRM} = sub {
+ show_lines();
+ alarm $opt{interval} if defined $opt{interval} and $opt{interval} > 0;
+};
+
if (defined $opt{interval}) {
$opt{interval} ||= 1;
- $SIG{ALRM} = sub {
- show_lines();
- alarm $opt{interval};
- };
- alarm $opt{interval};
+ alarm $opt{interval} if $opt{interval} > 0;
eval {
require Tie::Array::Sorted;
} or warn $@, "Expect slowdown with large datasets!\n";
}
-$SIG{INT} = 'IGNORE'; # continue after assumed eof
+$SIG{INT} = sub {
+ $SIG{INT} = 'DEFAULT'; # reset for subsequent attempts
+ exit if !$.;
+ 'IGNORE' # continue after assumed eof
+};
my $valmatch = qr/$opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |)/x;
while (readline) {
push @order, $1 if length $1;
if (defined $opt{trim} and defined $1) {
my $trimpos = abs $opt{trim};
+ $trimpos -= length $1 if $opt{unmodified};
if ($trimpos <= 1) {
- $_ = substr $_, 0, 1;
+ $_ = substr $_, 0, 2;
}
elsif (length > $trimpos) {
substr($_, $trimpos - 1) = '…';
}
}
push @lines, $_;
+ show_lines() if defined $opt{interval} and $opt{interval} < 0
+ and $. % $opt{interval} == 0;
}
$SIG{INT} = 'DEFAULT';
+sub color {
+ $opt{color} and defined $_[0] or return '';
+ return "\e[$_[0]m" if defined wantarray;
+ $_ = color(@_) . $_ . color(0) if defined;
+}
+
sub show_lines {
state $nr = $opt{hidemin} ? $opt{hidemin} - 1 : 0;
$barmark[ orderpos($#order * .68269) ] = '<';
$barmark[ orderpos($#order / 2) ] = '+'; # mean
$barmark[ -$minval * $size ] = '|' if $minval < 0; # zero
- defined and $opt{color} and $_ = "\e[36m$_\e[0m" for @barmark;
+ color(36) for @barmark;
state $lastmax = $maxval;
if ($maxval > $lastmax) {
print ' ' x ($lenval + $len);
- printf "\e[90m" if $opt{color};
+ printf color(90);
printf '%-*s',
($lastmax - $minval) * $size + .5,
'-' x (($values[$nr - 1] - $minval) * $size);
- print "\e[92m" if $opt{color};
+ print color(92);
say '+' x (($maxval - $lastmax - $minval) * $size + .5);
- print "\e[0m" if $opt{color};
+ print color(0);
$lastmax = $maxval;
}
}
@lines > $nr or return if $opt{hidemin};
sub sival {
- my $unit = int(log($_[0]) / log(1000) - ($_[0] < 1) + 1e-15);
- my $float = sprintf '%e', $_[0] / 1000 ** $unit; #TODO: or $_[0] =~ /\./
- $float -= int($float);
- sprintf('%*.*f%*s',
- $float ? (5,1) : (3,0), # length and tenths
- $_[0] / 1000 ** $unit, # number
- $float ? 0 : 3, # unit size
- $#{$opt{units}} >> 1 < abs $unit ? "e$unit" : $opt{units}->[$unit]
+ my $unit = int(log(abs $_[0] || 1) / log(10) - 3*($_[0] < 1) + 1e-15);
+ my $float = $_[0] !~ /^0*[-0-9]{1,3}$/;
+ sprintf('%3.*f%1s',
+ $float && ($unit % 3) == ($unit < 0), # tenths
+ $_[0] / 1000 ** int($unit/3), # number
+ $#{$opt{units}} * 1.5 < abs $unit ? "e$unit" : $opt{units}->[$unit/3]
);
}
while ($nr <= $#lines) {
$nr >= $opt{hidemax} and last if defined $opt{hidemax};
my $val = $values[$nr];
+
+ if ($opt{spark}) {
+ print $opt{spark}->[ ($val - $minval) / $maxval * $#{$opt{spark}} ];
+ next;
+ }
+
if (length $val) {
- my $color = !$opt{color} ? 0 :
+ my $color = !$opt{color} ? undef :
$val == $order[0] ? 32 : # max
$val == $order[-1] ? 31 : # min
90;
$val = $opt{units} ? sival($val) : sprintf "%*s", $lenval, $val;
- $val = "\e[${color}m$val\e[0m" if $color;
+ color($color) for $val;
}
my $line = $lines[$nr] =~ s/\n/$val/r;
printf '%-*s', $len + length($val), $line;
- print $barmark[$_] // '-' for 1 .. $size && (($values[$nr] || 0) - $minval) * $size + .5;
+ print $barmark[$_] // $opt{'graph-format'} for 1 .. $size && (($values[$nr] || 0) - $minval) * $size + .5;
say '';
-
+}
+continue {
$nr++;
}
+say '' if $opt{spark};
}
show_lines();
-if ($opt{stat}) {
+sub show_stat {
if ($opt{hidemin} or $opt{hidemax}) {
$opt{hidemin} ||= 1;
$opt{hidemax} ||= @lines;
}
if (@order) {
my $total = sum @order;
- printf '%s total', $total;
+ printf '%s total', color(1) . $total . color(0);
printf ' in %d values', scalar @values;
- printf ' (%s min, %*.*f avg, %s max)',
- $order[-1], 0, 2, $total / @order, $order[0];
+ printf(' (%s min, %s avg, %s max)',
+ color(31) . $order[-1] . color(0),
+ color(36) . (sprintf '%*.*f', 0, 2, $total / @order) . color(0),
+ color(32) . $order[0] . color(0),
+ );
}
say '';
}
+show_stat() if $opt{stat};
__END__
=encoding utf8
Contents are concatenated similar to I<cat>,
but numbers are reformatted and a bar graph is appended to each line.
+Don't worry, barcat does not drink and divide.
+It can has various options for input and output (re)formatting,
+but remains limited to one-dimensional charts.
+For more complex graphing needs
+you'll need a larger animal like I<gnuplot>.
+
=head1 OPTIONS
=over
Also changes an exponent I<1.602176634e-19> to I<160.2z>.
Short integers are aligned but kept without decimal point.
-=item -t, --interval[=<seconds>]
+=item -t, --interval[=(<seconds>|-<lines>)]
-Interval time to output partial progress.
+Output partial progress every given number of seconds or input lines.
+An update can also be forced by sending a I<SIGALRM> alarm signal.
=item -l, --length=[-]<size>[%]
All input is still counted and analyzed for statistics,
but disregarded for padding and bar size.
+=item --graph-format=<character>
+
+Glyph to repeat for the graph line.
+Defaults to a dash C<->.
+
=item -m, --markers=
Statistical positions to indicate on bars.
=item -u, --unmodified
-Do not strip leading whitespace.
+Do not reformat values, keeping leading whitespace.
Keep original value alignment, which may be significant in some programs.
=item --value-length=<size>
Override the maximum number of columns to use.
Appended graphics will extend to fill up the entire screen.
+=item -h, --usage
+
+Overview of available options.
+
+=item --help
+
+Full documentation
+rendered by perldoc.
+
+=item --version
+
+Version information.
+
=back
=head1 EXAMPLES
echo 'SELECT count(*),schemaname FROM pg_tables GROUP BY 2' |
psql -t | barcat -u
+Earthquakes worldwide magnitude 1+ in the last 24 hours:
+
+ https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_day.csv |
+ column -tns, | graph -f4 -u -l80%
+
External datasets, like movies per year:
curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json |
git shortlog -sn | barcat -L3 -s
+Activity of the last days (substitute date C<-v-{}d> on BSD):
+
+ ( git log --pretty=%ci --since=30day | cut -b-10
+ seq 0 30 | xargs -i date +%F -d-{}day ) |
+ sort | uniq -c | awk '$1--' | graph --spark
+
=head1 AUTHOR
Mischa POSLAWSKY <perl@shiar.org>
git.shiar.nl / barcat.git / blobdiff