Merge pull request #976 from Algunenano/auto_postgis

Test: Make POSTGIS_VERSION detection automatic

test/support/prepare_db.sh

@@ -25,6 +25,8 @@ while [ -n "$1" ]; do
   elif test "$1" = "--no-sql-download"; then
     DOWNLOAD_SQL_FILES=no
     shift; continue
+  else
+    shift; continue;
   fi
 done
 
@@ -70,6 +72,20 @@ echo "PUBLICPASS: ${PUBLICPASS}"
 echo "TESTUSER: ${TESTUSER}"
 echo "TESTPASS: ${TESTPASS}"
 
+# Sets the env variable POSTGIS_VERSION as Major * 10000 + Minor * 100 + Patch
+# For example, for 2.4.5 ~> 20405
+auto_postgis_version() {
+    local POSTGIS_STR=$(psql -c "Select default_version from pg_available_extensions WHERE name = 'postgis';" -t);
+    local pg_version=$(echo $POSTGIS_STR | awk -F '.' '{print $1 * 10000 + $2 * 100 + $3}')
+
+    echo $pg_version
+}
+
+if [ -z "$POSTGIS_VERSION" ]; then
+    export POSTGIS_VERSION=$(auto_postgis_version)
+    echo "POSTGIS_VERSION: ${POSTGIS_VERSION}"
+fi
+
 if test x"$PREPARE_PGSQL" = xyes; then
 
   echo "preparing postgres..."