Defined drop_db.sh script to clean all Hivemind specific data created in HAF database.

scripts/drop_db.sh

+#! /bin/sh
+
+set -e
+
+print_help () {
+    cat <<EOF
+Usage: $0 [OPTION[=VALUE]]...
+
+Allows to setup a database already filled by HAF instance, to work with Hivemind application.
+OPTIONS:
+    --host=VALUE             Allows to specify a PostgreSQL host location (defaults to localhost)
+    --port=NUMBER            Allows to specify a PostgreSQL operating port (defaults to 5432)
+    --user=VALUE             Allows to specify a PostgreSQL user (defaults to haf_admin)
+    --url=URL                Allows to specify a PostgreSQL URL (empty by default, overrides options above)
+    --help,-h,-?             Displays this help message
+EOF
+}
+
+POSTGRES_USER=${POSTGRES_USER:-"haf_admin"}
+POSTGRES_HOST=${POSTGRES_HOST:-"localhost"}
+POSTGRES_PORT=${POSTGRES_PORT:-5432}
+POSTGRES_URL=${POSTGRES_URL:-""}
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --host=*)
+        POSTGRES_HOST="${1#*=}"
+        ;;
+    --port=*)
+        POSTGRES_PORT="${1#*=}"
+        ;;
+    --user=*)
+        POSTGRES_USER="${1#*=}"
+        ;;
+    --postgres-url=*)
+        POSTGRES_URL="${1#*=}"
+        ;;
+    --help|-h|-?)
+        print_help
+        exit 0
+        ;;
+    -*)
+        echo "ERROR: '$1' is not a valid option"
+        echo
+        print_help
+        exit 1
+        ;;
+    *)
+        echo "ERROR: '$1' is not a valid argument"
+        echo
+        print_help
+        exit 2
+        ;;
+    esac
+    shift
+done
+
+POSTGRES_ACCESS_ADMIN=${POSTGRES_URL:-"postgresql://$POSTGRES_USER@$POSTGRES_HOST:$POSTGRES_PORT/haf_block_log"}
+
+
+drop_db() {
+    psql "$POSTGRES_ACCESS_ADMIN" -v "ON_ERROR_STOP=ON" -c "do \$\$ BEGIN if hive.app_context_exists('hivemind_app') THEN perform hive.app_remove_context('hivemind_app'); end if; END \$\$"
+    psql "$POSTGRES_ACCESS_ADMIN" -v "ON_ERROR_STOP=ON" -c "DROP SCHEMA IF EXISTS hivemind_app CASCADE;"
+    psql "$POSTGRES_ACCESS_ADMIN" -v "ON_ERROR_STOP=ON" -c "REASSIGN OWNED BY hivemind TO postgres; "
+    psql "$POSTGRES_ACCESS_ADMIN" -v "ON_ERROR_STOP=ON" -c "DROP OWNED BY hivemind"
+    psql "$POSTGRES_ACCESS_ADMIN" -v "ON_ERROR_STOP=ON" -c "DROP ROLE hivemind"
+}
+
+drop_db