take out jq requirement by using built-in json parser

Author: kendrick-ren

example-playbooks/restore_scylla_manager_backup/README.md

@@ -9,7 +9,6 @@ It requires Scylla Manager 2.4 or newer.
 1. Scylla Manager Agent installed on all the nodes.
 1. Access to the backup location from all the nodes.
 1. New cluster is registered in ScyllaDB Manager.
-1. jq is installed on all the nodes.
 
 
 ## Parameters

example-playbooks/restore_scylla_manager_backup/restore.yaml

@@ -31,9 +31,17 @@
 
     - name: Get names of the tables in the snapshot {{ snapshot_tag }}
       shell: |
-        scylla-manager-agent download-files -L {{ backup_location }} -n {{ host_id[inventory_hostname] }} -T {{ snapshot_tag }} --dump-manifest 2>/dev/null | jq -r '.index[] | [.keyspace,.table] | join(".")'
+         scylla-manager-agent download-files -L {{ backup_location }} -n {{ host_id[inventory_hostname] }} -T {{ snapshot_tag }} --dump-manifest
       become_user: scylla
-      register: _tables_list
+      vars:
+        ansible_pipelining: true        
+      register: _manifest_output
+
+    - name: Parse table names from manifest
+      set_fact:
+        _tables_list:
+           stdout_lines: "{{ (_manifest_output.stdout | from_json).index | map(attribute='keyspace') | zip((_manifest_output.stdout | from_json).index | map(attribute='table')) | map('join', '.') | list }}"
+           stdout: "{{ ((_manifest_output.stdout | from_json).index | map(attribute='keyspace') | zip((_manifest_output.stdout | from_json).index | map(attribute='table')) | map('join', '.') | list) | join('\n') }}"
 
     - name: Save tables names list as a fact
       set_fact: