add init script

init.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+shapefile=true
+
+# FUNCTION help_short()
+#
+# Print short usage information.
+function help_short() {
+    echo "Usage: $0 [-h|--help] [--no-shapefile]"
+}
+
+# FUNCTION help_long()
+#
+# Print detailed usage information.
+function help_long() {
+    help_short
+    printf "\t--no-shapefile\tDo not download shapefile.\n"
+    printf "\t-h,--help\tPrint this help.\n"
+}
+
+# FUNCTION error(...)
+#
+# Print error composed of arguments, then exit.
+function error() {
+    echo "$0: $*" >> /dev/stderr
+    exit 1
+}
+
+# FUNCTION error_and_usage(...)
+#
+# Print error composed of arguments, followed by help, then exit.
+function error_and_usage() {
+    echo "$0: $*" >> /dev/stderr
+    help_short
+    exit 1
+}
+
+# Loop for command line arguments, see:
+#   http://stackoverflow.com/a/14203146/2666289
+while [ ! -z "$1" ]
+do
+    key="$1"
+
+    case $key in
+        --no-shapefile)
+            shapefile=false
+            ;;
+        -h|--help)
+            help_long
+            exit 0
+            ;;
+        *)
+            input_file="$key"
+            ;;
+    esac
+    shift # past argument or value
+done
+
+function download_shapefile() {
+
+    if [ -f "inputs/land-polygons-split-4326/land_polygons.shp" ] && [ $(find "inputs/land-polygons-split-4326/inputs.shp" -mtime -30) ]; then
+        echo "Land polygons exist and are newer than 30 days."
+    else
+        echo "Downloading land polygons..."
+        rm -rf "inputs/land-polygons-split-4326"
+        rm -f "inputs/land-polygons-split-4326.zip"
+        wget -v -N -P "inputs" http://data.openstreetmapdata.com/land-polygons-split-4326.zip || exit 1
+        unzip -o "inputs/land-polygons-split-4326.zip" -d "inputs"
+        rm -f "inputs/land-polygons-split-4326.zip"
+    fi
+
+}
+
+# Init OSM2Graph
+
+if [ ! -e plugins/OSM2Graph ]; then
+    error "OSM2Graph submodule does not exist, did you forget the --recursive option on clone?"
+fi
+
+if [ -e plugins/osm2graph.jar ]; then
+    rm -f plugins/osm2graph.jar
+fi
+
+ln -s $(pwd)/plugins/OSM2Graph/osm2graph.jar $(pwd)/plugins/osm2graph.jar
+
+# Download and extract shapefile
+$shapefile || echo "Skipping shapefile download... "
+$shapefile && download_shapefile