Initial cdb_geocoder_server commit

server/sql/0.0.1/00_header.sql

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+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION cdb_geocoder_server" to load this file. \quit

server/sql/0.0.1/10_helper.sql

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+-- Check if a given host is up by performing a ping -c 1 call.
+CREATE OR REPLACE FUNCTION check_host(hostname TEXT)
+  RETURNS BOOLEAN
+AS $$
+  import os
+
+  response = os.system("ping -c 1 " + hostname)
+
+  return False if response else True
+$$ LANGUAGE plpythonu VOLATILE;
+
+-- Returns current pwd
+CREATE OR REPLACE FUNCTION pwd()
+  RETURNS TEXT
+AS $$
+  import os
+
+  return os.getcwd()
+$$ LANGUAGE plpythonu VOLATILE;

server/sql/00_install_test.sql

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+-- Install dependencies
+CREATE EXTENSION postgis;
+CREATE EXTENSION schema_triggers;
+CREATE EXTENSION plpythonu;
+CREATE EXTENSION cartodb;
+
+-- Install the extension
+CREATE EXTENSION cdb_geocoder_server;
+
+-- Mock the varnish invalidation function
+CREATE OR REPLACE FUNCTION public.cdb_invalidate_varnish(table_name text) RETURNS void AS $$
+BEGIN
+  RETURN;
+END
+$$
+LANGUAGE plpgsql;

server/sql/10_helper_test.sql

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+-- Check that check_host is working
+select check_host('cartodb.com');
+
+-- Check that check_pwd is working
+select pwd();