<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Use case is for customers on air-gapped customers who want to take the tarball using a flash drive inside their network.
Currently that is not possible because cli does not keep the tarball after installing the collection.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ansible-galaxy cli

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can also paste gist.github.com links for larger files -->

"""
        List installed collections or roles
        """
        if context.CLIARGS['type'] == 'role':
            self.execute_list_role()
        elif context.CLIARGS['type'] == 'collection':
            self.execute_list_collection()
    def execute_list_role(self):
        """
        List all roles installed on the local system or a specific role
        """
        path_found = False
        role_found = False
        warnings = []
        roles_search_paths = context.CLIARGS['roles_path']
        role_name = context.CLIARGS['role']
        for path in roles_search_paths:
            role_path = GalaxyCLI._resolve_path(path)
            if os.path.isdir(path):
                path_found = True
            else:
                warnings.append("- the configured path {0} does not exist.".format(path))
                continue
            if role_name: