X-Git-Url: http://git.shiar.nl/barcat.git/blobdiff_plain/ce4b0d2b0ea9193cf2b557bbdf6b27056390a9ba..f4423db9671d9650e7a39482ffc935d373e72ef5:/barcat

diff --git a/barcat b/barcat
index 2a7bdbf..82cf7d6 100755
--- a/barcat
+++ b/barcat
@@ -47,6 +47,9 @@ GetOptions(\%opt,
 		);
 	},
 	'markers|m=s',
+	'spark!' => sub {
+		$opt{spark} = [split //, '⎽▁▂▃▄▅▆▇█'];
+	},
 	'stat|s!',
 	'unmodified|u!',
 	'width|w=i',
@@ -164,6 +167,12 @@ sub sival {
 while ($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} ? undef :
 			$val == $order[0] ? 32 : # max
@@ -176,9 +185,11 @@ while ($nr <= $#lines) {
 	printf '%-*s', $len + length($val), $line;
 	print $barmark[$_] // '-' for 1 .. $size && (($values[$nr] || 0) - $minval) * $size + .5;
 	say '';
-
+}
+continue {
 	$nr++;
 }
+say '' if $opt{spark};
 
 }
 show_lines();
@@ -355,6 +366,11 @@ Any kind of database query with counts, preserving returned alignment:
     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 |
@@ -389,12 +405,11 @@ Or the top 3 most frequent authors with statistics over all:
 
     git shortlog -sn | barcat -L3 -s
 
-Activity of the last days:
+Activity of the last days (substitute date C<-v-{}d> on BSD):
 
-    git log --pretty=%cd --date=format:%F --since=1month |
-    perl -MTime::Piece -pE
-        'for ($t //= localtime; $t->ymd gt $_; $t -= 24*60*60) {say $t->ymd}' |
-    sort | uniq -c | awk '$1--' | graph
+    ( 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