1 files changed, 41 insertions, 0 deletions

diff --git a/bin/osm/osm.pbf.update b/bin/osm/osm.pbf.update
new file mode 100755
index 0000000..6c6f445
--- /dev/null
+++ b/bin/osm/osm.pbf.update
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+set -e
+
+GEOFABRIK_SERVER=http://download.geofabrik.de/asia/taiwan-updates
+PBF_FILE=$1
+
+# get latest sequence number
+echo Fetching the latest sequence number
+LATEST_SEQ=$(curl --silent http://download.geofabrik.de/asia/taiwan-updates/state.txt |\
+             tail -1 | cut -d'=' -f2)
+echo Latest sequence number is $LATEST_SEQ
+
+# get current sequence number
+SEQ=$(osmium fileinfo $PBF_FILE |\
+      grep osmosis_replication_sequence_number |\
+      cut -d'=' -f2)
+echo File sequence number is $SEQ
+
+# while server has osc file with given sequence number,
+# get it and do file update
+while
+    (( SEQ++ ))
+    [ $SEQ -le $LATEST_SEQ ]
+do
+    mkdir -p changes
+    SEQ_PATH=$(echo $SEQ | sed -r 's/(.{1})(.{3})/00\1\/\2/')
+    CHANGE_URL=$GEOFABRIK_SERVER/000/$SEQ_PATH.osc.gz
+    echo $CHANGE_URL
+    curl -o changes/$SEQ.osc.gz $CHANGE_URL && \
+    osmium apply-changes $PBF_FILE changes/$SEQ.osc.gz \
+        --output-header=osmosis_replication_sequence_number=$SEQ \
+        --overwrite \
+        --output $SEQ.osm.pbf
+
+    mv $PBF_FILE $((SEQ-1)).osm.pbf
+    mv $SEQ.osm.pbf $PBF_FILE
+done
+
+echo
+echo File sequence number is $((SEQ-1)), already the latest one on Geofrbrik