Generate script to create migrate from unpackaged

Usage: CREATE EXTENSION cartodb FROM unpackaged;

util/create_from_unpackaged.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+input=cartodb--0.1.sql
+output=cartodb--unpackaged--0.1.sql
+
+cat ${input} > ${output}
+
+# Migrate CDB_TableMetadata
+cat >> ${output} <<EOF
+ALTER TABLE cartodb.CDB_TableMetadata DISABLE TRIGGER ALL;
+INSERT INTO cartodb.CDB_TableMetadata SELECT * FROM public.CDB_TableMetadata;
+ALTER TABLE cartodb.CDB_TableMetadata ENABLE TRIGGER ALL;
+DROP TABLE public.CDB_TableMetadata;
+
+-- Cartodbfy tables with a trigger using 'CDB_CheckQuota' or
+-- 'CDB_TableMetadata_Trigger' from the 'public' schema
+select cartodb.CDB_CartodbfyTable(relname::regclass) from ( 
+  -- names of tables using public.CDB_CheckQuota or
+  -- public.CDB_TableMetadata_Trigger in their triggers
+  SELECT distinct c.relname
+  FROM
+    pg_trigger t,
+    pg_class c,
+    pg_proc p,
+    pg_namespace n
+  WHERE
+    n.nspname = 'public' AND
+    p.pronamespace = n.oid AND
+    p.proname IN ( 'cdb_checkquota', 'cdb_tablemetadata_trigger' ) AND
+    t.tgrelid = c.oid AND
+    p.oid = t.tgfoid 
+) as foo;
+EOF
+
+# Drop functions from public schema
+cat ${input} |
+  grep '^ *CREATE OR REPLACE FUNCTION' |
+  grep -v ' cartodb\.' | # should  only match DDL hooks
+  sed 's/).*$/);/' |
+  sed 's/DEFAULT [^ ,)]*//g' |
+  sed 's/CREATE OR REPLACE FUNCTION /DROP FUNCTION public./' |
+  cat >> ${output}