Strip escape codes out of logs

Colour and bold formatting gets put in the log files too which can make reading them difficult, this commit attempts to strip them out

provision/provision-helpers.sh

@@ -177,11 +177,11 @@ function log_to_file() {
 	exec 2>&7
 	# pipe to file
 	if [[ "${1}" == "provisioner-main" ]]; then
-		exec > >( tee -a "${logfile}" ) # main provisioner outputs everything
+		exec > >( tee -a "${logfile}" | sed -r "s/\x1B\[[0-9;]*[mK]//g" ) # main provisioner outputs everything
 	else
-		exec > >( tee -a "${logfile}" >/dev/null ) # others, only stderr
+		exec > >( tee -a "${logfile}"  | sed -r "s/\x1B\[[0-9;]*[mK]//g" >/dev/null ) # others, only stderr
 	fi
-	exec 2> >( tee -a "${logfile}" >&2 )
+	exec 2> >( tee -a "${logfile}" | sed -r "s/\x1B\[[0-9;]*[mK]//g" >&2 )
 	VVV_CURRENT_LOG_FILE="${logfile}"
 }
 export -f log_to_file