Replace reflector

[kousu]

According to #archlinux reflector is dying; possible replacements are

• https://github.com/vbextreme/ghostmirror
• https://github.com/westandskif/rate-mirrors

rate-mirrors has the big advantage of being able to quickly find zero in on the fastest mirrors globally by spidering through
fastest countries, though always starting from the US; that means no need to pin to guess a country here:

arch-conf/kousu-base/src/usr/share/libalpm/scripts/reflectorconf

Lines 3 to 12 in b94285b

	# detect our current country
	# use mirrors from there
	IP=$(timeout 30 curl -s ipinfo.io | jq -r .ip | head -n1)
	COUNTRY=$(timeout 30 whois -H --no-recursion "$IP" | grep Country | head -n 1 | cut -f 2 -d : | tr -d '[:space:]')
	if [ -z "$COUNTRY" ]; then
	# default if failed
	COUNTRY="CA"
	fi
	export COUNTRY
	sh "$1" > "$2"

arch-conf/kousu-base/src/usr/share/reflector/reflector.conf.in

Lines 8 to 13 in b94285b

	cat <<EOF
	--save /etc/pacman.d/mirrorlist
	--protocol https
	--fastest 3
	--country ${COUNTRY}
	EOF

Both of these have the big disadvantage (for how I've designed things) of being AUR packages.

reflector is part of the official arch installer so like, it's probably not that urgent.