Provide own getargspec for roles and modules with Python 3.11

Python 3.11 dropped compat inspect.getargspec. As the roles and modules
need to support Python2 and Python3, the code for getargspec has been
copied from Python 3.10 and is added as a fallback as soon as getargspec
can not be imported from inspect. The copied getargspec is using
getfullargspec internally.

Fixes: #855 (Python's inspect.getargspec was removed in version 3.11)

roles/ipaclient/library/ipaclient_api.py

@@ -75,7 +75,6 @@ subject_base:
 '''
 
 import os
-import inspect
 
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.ansible_ipa_client import (
@@ -83,7 +82,7 @@ from ansible.module_utils.ansible_ipa_client import (
     paths, x509, NUM_VERSION, serialization, certdb, api,
     delete_persistent_client_session_data, write_tmp_file,
     ipa_generate_password, CalledProcessError, errors, disable_ra, DN,
-    CLIENT_INSTALL_ERROR, logger
+    CLIENT_INSTALL_ERROR, logger, getargspec
 )
 
 
@@ -134,7 +133,7 @@ def main():
         # Add CA certs to a temporary NSS database
         try:
             # pylint: disable=deprecated-method
-            argspec = inspect.getargspec(tmp_db.create_db)
+            argspec = getargspec(tmp_db.create_db)
             # pylint: enable=deprecated-method
             if "password_filename" not in argspec.args:
                 tmp_db.create_db()

roles/ipaclient/library/ipaclient_setup_nis.py

@@ -57,11 +57,10 @@ EXAMPLES = '''
 RETURN = '''
 '''
 
-import inspect
-
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.ansible_ipa_client import (
-    setup_logging, options, sysrestore, paths, configure_nisdomain
+    setup_logging, options, sysrestore, paths, configure_nisdomain,
+    getargspec
 )
 
 
@@ -83,7 +82,7 @@ def main():
     statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
 
     # pylint: disable=deprecated-method
-    argspec = inspect.getargspec(configure_nisdomain)
+    argspec = getargspec(configure_nisdomain)
     # pylint: enable=deprecated-method
     if "statestore" not in argspec.args:
         # NUM_VERSION < 40500:

roles/ipaclient/library/ipaclient_setup_nss.py

@@ -141,7 +141,6 @@ RETURN = '''
 
 import os
 import time
-import inspect
 
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.ansible_ipa_client import (
@@ -151,7 +150,7 @@ from ansible.module_utils.ansible_ipa_client import (
     get_certs_from_ldap, DN, certstore, x509, logger, certdb,
     CalledProcessError, tasks, client_dns, configure_certmonger, services,
     update_ssh_keys, save_state, configure_ldap_conf, configure_nslcd_conf,
-    configure_openldap_conf, hardcode_ldap_server
+    configure_openldap_conf, hardcode_ldap_server, getargspec
 )
 
 
@@ -323,7 +322,7 @@ def main():
             pass
 
         # pylint: disable=deprecated-method
-        argspec_save_state = inspect.getargspec(save_state)
+        argspec_save_state = getargspec(save_state)
 
         # Name Server Caching Daemon. Disable for SSSD, use otherwise
         # (if installed)
@@ -387,7 +386,7 @@ def main():
         if not options.no_ac:
             # Modify nsswitch/pam stack
             # pylint: disable=deprecated-method
-            argspec = inspect.getargspec(tasks.modify_nsswitch_pam_stack)
+            argspec = getargspec(tasks.modify_nsswitch_pam_stack)
             if "sudo" in argspec.args:
                 tasks.modify_nsswitch_pam_stack(
                     sssd=options.sssd,

roles/ipaclient/library/ipaclient_setup_ntp.py

@@ -66,13 +66,11 @@ EXAMPLES = '''
 RETURN = '''
 '''
 
-import inspect
-
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.ansible_ipa_client import (
     setup_logging,
     options, sysrestore, paths, sync_time, logger, ipadiscovery,
-    timeconf
+    timeconf, getargspec
 )
 
 
@@ -114,7 +112,7 @@ def main():
         if options.conf_ntp:
             # Attempt to configure and sync time with NTP server (chrony).
             # pylint: disable=deprecated-method
-            argspec = inspect.getargspec(sync_time)
+            argspec = getargspec(sync_time)
             # pylint: enable=deprecated-method
             if "options" not in argspec.args:
                 synced_ntp = sync_time(options.ntp_servers, options.ntp_pool,

roles/ipaclient/library/ipaclient_test.py

@@ -197,7 +197,6 @@ nosssd_files:
 
 import os
 import socket
-import inspect
 
 try:
     from ansible.module_utils.six.moves.configparser import RawConfigParser
@@ -212,7 +211,7 @@ from ansible.module_utils.ansible_ipa_client import (
     CLIENT_INSTALL_ERROR, tasks, check_ldap_conf, timeconf, constants,
     validate_hostname, nssldap_exists, gssapi, remove_file,
     check_ip_addresses, ipadiscovery, print_port_conf_info,
-    IPA_PYTHON_VERSION
+    IPA_PYTHON_VERSION, getargspec
 )
 
 
@@ -344,7 +343,7 @@ def main():
 
         if options.realm_name:
             # pylint: disable=deprecated-method
-            argspec = inspect.getargspec(validate_domain_name)
+            argspec = getargspec(validate_domain_name)
             if "entity" in argspec.args:
                 # NUM_VERSION >= 40690:
                 validate_domain_name(options.realm_name, entity="realm")