date alternative on BSD variants including OSX

[barcat.git] / barcat

diff --git a/barcat b/barcat
index 2a7bdbf2c08ee9b7edfeea8d8fb36e83248ae553..1c567f4f14c38b9f005f9cd8e25df80eea4deb9c 100755 (executable)
--- a/barcat
+++ b/barcat
@@ -389,11 +389,10 @@ 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}' |
+    ( git log --pretty=%ci --since=30day | cut -b-10
+      seq 0 30 | xargs -i date +%F -d-{}day ) |
     sort | uniq -c | awk '$1--' | graph
 
 =head1 AUTHOR