#version=2
#opts=filenamemangle=s/.+\/v?(\d\S+)\.tar\.gz/ferret-$1\.tar\.gz/ \
#  https://github.com/NOAA-PMEL/Ferret/tags .*/v?(\d\S+)\.tar\.gz
version=4
opts=uversionmangle=s/(-beta)/beta/;s/(rc|a|b|c)/~$1/,\
  filenamemangle=s/.+\/v?@ANY_VERSION@\.tar\.gz/ferret$1\.tar\.gz/ \
  https://github.com/NOAA-PMEL/Ferret/tags .*\/v?@ANY_VERSION@.tar\.gz
