use open qw( :std :utf8 );
use re '/msx';
-our $VERSION = '1.07';
+our $VERSION = '1.08';
my %opt;
if (@ARGV) {
Getopt::Long->import('2.33', qw( :config gnu_getopt ));
GetOptions(\%opt,
'ascii|a!',
- 'color|c!',
- 'C' => sub { $opt{color} = 0 },
+ 'color|C!',
+ 'M' => sub { $opt{color} = 0 },
'field|f=s' => sub {
eval {
local $_ = $_[1];
- $opt{anchor} = /\A[0-9]+\z/ ? qr/(?:\S*\h+){$_}\K/ : qr/$_/;
+ s/\A[0-9]+\z/(?:\\S*\\h+){$_}\\K/;
+ s{\A[+]([0-9]*)\z}{
+ (!!$1 && '(?:\d+\D+\b){'.$1.'}\K') . '\s* (?=\d)'
+ }e;
+ $opt{anchor} = qr/$_/;
} or die $@ =~ s/(?:\ at\ \N+)?\Z/ for option $_[0]/r;
},
'human-readable|H!',
+ 'sexagesimal!',
'interval|t:i',
'trim|length|l=s' => sub {
my ($optname, $optval) = @_;
'graph-format=s' => sub {
$opt{'graph-format'} = substr $_[1], 0, 1;
},
- 'spark:s' => sub {
- $opt{spark} = [split //,
- $_[1] || ($opt{ascii} ? ' ..oOO' : ' ▁▂▃▄▅▆▇█')
- ];
- },
+ 'spark|_!',
+ 'indicators:s',
'palette=s' => sub {
$opt{palette} = {
+ '' => [],
fire => [qw( 90 31 91 33 93 97 96 )],
- fire88 => [map {"38;5;$_"} qw(
- 80 32 48 64 68 72 76 77 78 79 47
- )],
fire256=> [map {"38;5;$_"} qw(
235 52 88 124 160 196
202 208 214 220 226 227 228 229 230 231 159
)],
- ramp88 => [map {"38;5;$_"} qw(
- 64 65 66 67 51 35 39 23 22 26 25 28
- )],
whites => [qw( 1;30 0;37 1;37 )],
- greys => [map {"38;5;$_"} 52, 235..255, 47],
- }->{$_[1]} // [ split /[^0-9;]/, $_[1] ];
+ greys => [map {"38;5;$_"} 0, 232..255, 15],
+ random => [map {"38;5;$_"} List::Util::shuffle(17..231)],
+ rainbow=> [map {"38;5;$_"}
+ 196, # r
+ (map { 196 + $_*6 } 0..4), # +g
+ (map { 226 - $_*6*6 } 0..4), # -r
+ (map { 46 + $_ } 0..4), # +b
+ (map { 51 - $_*6 } 0..4), # -g
+ (map { 21 + $_*6*6 } 0..4), # +r
+ (map { 201 - $_ } 0..4), # -b
+ 196,
+ ],
+ }->{$_[1]} // do {
+ my @vals = split /[^0-9;]/, $_[1]
+ or die "Empty palette resulting from \"$_[1]\"\n";
+ \@vals;
+ };
},
'stat|s!',
'signal-stat=s',
'unmodified|u!',
'width|w=i',
- 'version' => sub {
- say "barcat version $VERSION";
+ 'version|V' => sub {
+ my $mascot = $opt{ascii} ? '=^,^=' : 'ฅ^•ﻌ•^ฅ';
+ say "barcat $mascot version $VERSION";
exit;
},
'usage|h' => sub {
}
$opt{width} ||= $ENV{COLUMNS} || qx(tput cols) || 80 unless $opt{spark};
-$opt{color} //= -t *STDOUT; # enable on tty
+$opt{color} //= $ENV{NO_COLOR} ? 0 : -t *STDOUT; # enable on tty
$opt{'graph-format'} //= '-';
$opt{trim} *= $opt{width} / 100 if $opt{trimpct};
$opt{units} = [split //, ' kMGTPEZYyzafpn'.($opt{ascii} ? 'u' : 'μ').'m']
$opt{'signal-stat'} //= exists $SIG{INFO} ? 'INFO' : 'QUIT';
$opt{markers} //= '=avg >31.73v <68.27v +50v |0';
$opt{palette} //= $opt{color} && [31, 90, 32];
+$opt{indicators} = [split //, $opt{indicators} ||
+ ($opt{ascii} ? ' .oO' : $opt{spark} ? ' ▁▂▃▄▅▆▇█' : ' ▏▎▍▌▋▊▉█')
+] if defined $opt{indicators} or $opt{spark};
$opt{hidemin} = ($opt{hidemin} || 1) - 1;
$opt{input} = (@ARGV && $ARGV[0] =~ m/\A[-0-9]/) ? \@ARGV : undef
and undef $opt{interval};
$opt{'sum-format'} = sub { sprintf '%.8g', $_[0] };
$opt{'calc-format'} = sub { sprintf '%*.*f', 0, 2, $_[0] };
-$opt{'value-format'} = $opt{units} && sub {
+$opt{'value-format'} = $opt{sexagesimal} ? sub {
+ my $s = $_[0] + .5;
+ sprintf('%d:%02d:%02d', $s/3600, $s/60%60, $s%60);
+} : $opt{units} && sub {
my $unit = (
log(abs $_[0] || 1) / log(10)
- 3 * (abs($_[0]) < .9995) # shift to smaller unit if below 1
sub show_lines {
state $nr =
- $opt{hidemin} < 0 ? @lines + $opt{hidemin} + 1 :
+ $opt{hidemin} < 0 ? max(0, @lines + $opt{hidemin} + 1) :
$opt{hidemin};
@lines > $nr or return;
if ($opt{hidemin} and $opt{hidemin} < 0) {
$limit -= $opt{hidemax} - 1;
}
- else {
+ elsif ($opt{hidemax} <= $limit) {
$limit = $opt{hidemax} - 1;
}
}
max map { length $values[$_] && length $lines[$_] }
0 .. min $#lines, $opt{hidemax} || (); # left padding
my $size = defined $opt{width} && $range &&
- ($opt{width} - $lenval - $len) / $range; # bar multiplication
+ ($opt{width} - $lenval - $len - !!$opt{indicators}) / $range; # bar multiplication
my @barmark;
if ($opt{markers} and $size > 0) {
while ($nr <= $limit) {
my $val = $values[$nr];
- my $rel = length $val && $range && ($val - $minval) / $range;
+ my $rel = length $val && $range && min(1, ($val - $minval) / $range);
my $color = !length $val || !$opt{palette} ? undef :
$val == $order[0] ? $opt{palette}->[-1] : # max
$val == $order[-1] ? $opt{palette}->[0] : # min
$opt{palette}->[ $rel * ($#{$opt{palette}} - 1) + 1 ];
+ my $indicator = $opt{indicators} && $opt{indicators}->[
+ !length($val) || !$#{$opt{indicators}} ? 0 : # blank
+ $#{$opt{indicators}} < 2 ? 1 :
+ $val >= $order[0] ? -1 :
+ $rel * ($#{$opt{indicators}} - 1e-14) + 1
+ ];
if ($opt{spark}) {
say '' if $opt{width} and $nr and $nr % $opt{width} == 0;
- print color($color), $opt{spark}->[
- !$val || !$#{$opt{spark}} ? 0 : # blank
- $val == $order[0] ? -1 : # max
- $val == $order[-1] ? 1 : # min
- $#{$opt{spark}} < 3 ? 1 :
- $rel * ($#{$opt{spark}} - 3) + 2.5
- ];
+ print color($color), $_ for $indicator;
next;
}
+ print $indicator if defined $indicator;
if (length $val) {
$val = $opt{'value-format'} ? $opt{'value-format'}->($val) :
show_exit();
__END__
-Usage:
- barcat [OPTIONS] [FILES|NUMBERS]
-
+Usage: /\_/\
+ barcat [OPTIONS] [FILES|NUMBERS] (=•.•=)
+ (u u)
Options:
-a, --[no-]ascii Restrict user interface to ASCII characters
- -c, --[no-]color Force colored output of values and bar markers
- -f, --field=(N|REGEXP) Compare values after a given number of whitespace
+ -C, --[no-]color Force colored output of values and bar markers
+ -f, --field=([+]N|REGEXP)
+ Compare values after a given number of whitespace
separators
--header Prepend a chart axis with minimum and maximum
values labeled
-H, --human-readable Format values using SI unit prefixes
+ --sexagesimal Convert seconds to HH:MM:SS time format
-t, --interval[=(N|-LINES)]
Output partial progress every given number of
seconds or input lines
--min=N, --max=N Bars extend from 0 or the minimum value if lower
--palette=(PRESET|COLORS)
Override colors of parsed numbers
- --spark[=CHARS] Replace lines by sparklines
+ -_, --spark Replace lines by sparklines
+ --indicators[=CHARS] Prefix a unicode character corresponding to each
+ value
-s, --stat Total statistics after all data
-u, --unmodified Do not reformat values, keeping leading whitespace
--value-length=SIZE Reserved space for numbers
-w, --width=COLUMNS Override the maximum number of columns to use
-h, --usage Overview of available options
- --help Full documentation
- --version Version information
+ --help Full pod documentation
+ -V, --version Version information
=encoding utf8
=head1 NAME
-barcat - graph to visualize input values
+barcat - concatenate texts with graph to visualize values
=head1 SYNOPSIS
replacing default UTF-8 by their closest approximation.
Input is always interpreted as UTF-8 and shown as is.
-=item -c, --[no-]color
+=item -C, --[no-]color
Force colored output of values and bar markers.
Defaults on if output is a tty,
disabled otherwise such as when piped or redirected.
+Can also be disabled by setting I<-M>
+or the I<NO_COLOR> environment variable.
-=item -f, --field=(<number> | <regexp>)
+=item -f, --field=([+]<number> | <regexp>)
Compare values after a given number of whitespace separators,
or matching a regular expression.
(such as I<-f:> if preceded by colons),
or capture the numbers itself,
for example I<-f'(\d+)'> for the first digits anywhere.
+A shorthand for this is I<+0>, or I<+N> to find the Nth number.
=item --header
Also changes an exponent I<1.602176634e-19> to I<160.2z>.
Short integers are aligned but kept without decimal point.
+=item --sexagesimal
+
+Convert seconds to HH:MM:SS time format.
+
=item -t, --interval[=(<seconds> | -<lines>)]
Output partial progress every given number of seconds or input lines.
Predefined color schemes are named I<whites> and I<fire>,
or I<greys> and I<fire256> for 256-color variants.
-=item --spark[=<characters>]
+=item -_, --spark
Replace lines by I<sparklines>,
-single characters corresponding to input values.
-A specified sequence of unicode characters will be used for
-Of a specified sequence of unicode characters,
-the first one will be used for non-values,
-the last one for the maximum,
-the second (if any) for the minimum,
-and any remaining will be distributed over the range of values.
+single characters (configured by C<--indicators>)
+corresponding to input values.
+
+=item --indicators[=<characters>]
+
+Prefix a unicode character corresponding to each value.
+The first specified character will be used for non-values,
+the remaining sequence will be distributed over the range of values.
Unspecified, block fill glyphs U+2581-2588 will be used.
=item -s, --stat
=item --help
-Full documentation
-rendered by perldoc.
+Full pod documentation
+as rendered by perldoc.
-=item --version
+=item -V, --version
Version information.
du -d0 -b * | barcat -H
+Same from formatted results, selecting the first numeric value:
+
+ tree -s --noreport | barcat -H -f+
+
+Compare media metadata, like image size or play time:
+
+ exiftool -T -p '$megapixels ($imagesize) $filename' * | barcat
+
+ exiftool -T -p '$duration# $avgbitrate# $filename' * | barcat --sexagesimal
+
+ find -type f -print0 | xargs -0 -L1 \
+ ffprobe -show_format -of json -v error |
+ jq -r '.format|.duration+" "+.bit_rate+" "+.filename' | barcat --sex
+
Memory usage of user processes with long names truncated:
- ps xo %mem,pid,cmd | barcat -l40
+ ps xo rss,pid,cmd | barcat -l40
Monitor network latency from prefixed results:
Number of HTTP requests per day:
- cat log/access.log | cut -d\ -f4 | cut -d: -f1 | uniq -c | barcat
+ cat httpd/access.log | cut -d\ -f4 | cut -d: -f1 | uniq -c | barcat
Any kind of database query with counts, preserving returned alignment:
In PostgreSQL from within the client:
- postgres=> SELECT sin(generate_series(0, 3, .1)) \g |barcat
+ > SELECT sin(generate_series(0, 3, .1)) \g |barcat
Earthquakes worldwide magnitude 1+ in the last 24 hours:
External datasets, like movies per year:
curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json -L |
- perl -054 -nlE 'say if s/^"year"://' | uniq -c | barcat
-
-But please get I<jq> to process JSON
-and replace the manual selection by C<< jq '.[].year' >>.
+ jq .[].year | uniq -c | barcat
Pokémon height comparison:
curl https://sdw.ecb.europa.eu/export.do \
-Gd 'node=SEARCHRESULTS&q=EXR.D.USD.EUR.SP00.A&exportType=csv' |
- grep '^[12]' | barcat -f',\K' --value-length=7
+ barcat -f',\K' --value-length=7
Total population history in XML from the World Bank:
- curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL -L |
- xmllint --xpath '//*[local-name()="date" or local-name()="value"]' - |
- sed -r 's,</wb:value>,\n,g; s,(<[^>]+>)+, ,g' | barcat -f1 -H
+ curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
+ xmlstarlet sel -t -m '*/*' -v wb:date -o ' ' -v wb:value -n |
+ barcat -f1 -H
+
+Population and other information for all countries:
+
+ curl http://download.geonames.org/export/dump/countryInfo.txt |
+ grep -v '^#\s' | column -tns$'\t' | barcat -f+2 -u -l150 -s
And of course various Git statistics, such commit count by year:
git shortlog -sn | barcat -L3 -s
-Sparkline graphics of simple input given as inline parameters:
-
- barcat --spark= 3 1 4 1 5 0 9 2 4
-
Activity graph 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--' | barcat --spark
+Sparkline graphics of simple input given as inline parameters:
+
+ barcat -_ 3 1 4 1 5 0 9 2 4
+
+Misusing the spark functionality to draw a lolcat line:
+
+ seq $(tput cols) | barcat --spark --indicator=- --palette=rainbow
+
=head1 AUTHOR
Mischa POSLAWSKY <perl@shiar.org>
git.shiar.nl / barcat.git / blobdiff