Merge pull request #3 from andrewl/adds_schedule_feed_updater_script

Adds script to update schedule feed

update-schedule-feed.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# This script downloads the latest schedule feed from Network Rail and refreshes
+# the database with the new data.
+# It is intended to be run as a cron job.
+# It requires the following environment variables to be set:
+# - UKRA_USERNAME
+# - UKRA_PASSWORD
+
+# if username or password are empty, exit
+if [ -z "$UKRA_USERNAME" ] || [ -z "$UKRA_PASSWORD" ]; then
+  echo "UKRA_USERNAME or UKRA_PASSWORD not set"
+  exit 1
+fi
+
+curl -L -u "$UKRA_USERNAME:$UKRA_PASSWORD" -o schedule.json.gz 'https://publicdatafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=CIF_ALL_FULL_DAILY&day=toc-full'
+
+# if curl failed to download the file then exit
+if [ $? -ne 0 ]; then
+  echo "curl failed to download the file"
+  exit 1
+fi
+
+gunzip -f schedule.json.gz
+
+# if gunzip failed to unzip the file then exit
+if [ $? -ne 0 ]; then
+  echo "gunzip failed to unzip the file"
+  exit 1
+fi
+
+curl 127.0.0.1:3333/refresh
+
+# if curl failed to refresh the database then exit
+if [ $? -ne 0 ]; then
+  echo "curl failed to refresh the database"
+  exit 1
+fi