setup

#!/usr/bin/env bash
root_dir=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )

# check if osm4routing is installed
if ! [ "$( command -v osm4routing)" ]; then
    printf "osm4routing not installed. Please install using 'cargo install osm4routing'.\nSee instructions on installing cargo here: https://doc.rust-lang.org/cargo/getting-started/installation.html\nexiting...\n" >&2 
    exit 1
fi

# check arguments
if ! [ $# -gt 1 ]; then
 printf "Please provide a path to an OSM file and a name to be used as the table name for that dataset.\n" >&2
 exit 1
fi

path=$1
name=$2

echo "Creating edges and nodes..."
mkdir -p $root_dir/data 
cd $root_dir/data

osm4routing $path

mkdir -p $root_dir/init_db

# create sql scripts from templates 
for f in $root_dir/template/*.sql; do 
  filebase=$(basename $f)
  table=$name envsubst < $f > $root_dir/init_db/$filebase
done

# lastly, create an import script for importing into existing PostGIS instance
table=$name data_path=$root_dir/data envsubst '${table} ${data_path}' < $root_dir/template/import > $root_dir/import.sh
chmod u+x $root_dir/import.sh