Fetches the latest Vivaldi Linux rpm or deb package listed on the team blog

get-vivaldi-snap.sh

#!/bin/sh
case ${ARCH:-$(uname -m)} in
  x86_64) DEBARCH=amd64; ARCH=x86_64 ;;
    i?86) DEBARCH=i386; ARCH=i386 ;;
       *) echo "Your architecture is not supported!" >&2; exit 1 ;;
esac

if [ "$1" = "-d" ]; then
  PKGTYPE=deb
  ARCH=$DEBARCH
  shift 1
elif [ "$1" = "-r" ]; then
  PKGTYPE=rpm
  shift 1
else
  if [ -x "/usr/bin/dpkg" ]; then
    PKGTYPE=deb
    ARCH=$DEBARCH
  else
    PKGTYPE=rpm
  fi
fi

for PKG in $(curl -Ls 'https://vivaldi.net/blogs/teamblog?format=feed&type=rss' | sed -n "s/.*\/snapshot\/\(vivaldi-snapshot[_-]\(\([0-9]\+\.\)\)\{3\}[0-9]\+[_-][0-9]\+[_\.]$ARCH.$PKGTYPE\).*/\1/p" | head -n ${1:-1}); do
  if [ -e "$PKG" ]; then
    echo "$PKG is the latest version and it is already present" >&2
  else
    echo "Fetching $PKG"
    curl -O "https://downloads.vivaldi.com/snapshot/$PKG"
  fi
done