Modularize profile selection

gentoostrap.sh

@@ -13,6 +13,7 @@ declare -r _name="$(basename -- "$0")"
 # Options
 declare -i _optchroot
 declare _optdest="/mnt"
+declare _optprofile="desktop"
 declare -i _opthelp
 declare -i _optverbose
 # Working variables
@@ -149,12 +150,13 @@ build-gentoo-chroot() {
 	profile=$(
 		eselect profile list \
 			| grep -ie 'stable' \
-			| grep -ie 'plasma/systemd' \
+			| grep -ie "$profile" \
 			| sort \
 			| uniq \
 			| head -n 1 \
 			| grep -oP '\[\K[^\]]+'
-		)
+		) || error "Error finding profile: $profile" 51
+	[ -z "$profile" ] && error "Could not find profile: $profile" 52
 	log "Setting profile $profile"
 	eselect profile set "$profile"