ogcli: move configuration data into a different file

Move the configuration into its own file so it is easier to access
from multiple files.

cli/cli.py

@@ -20,6 +20,7 @@ from cli.objects.center import OgCenter
 from cli.objects.room import OgRoom
 from cli.objects.folder import OgFolder
 from cli.objects.session import OgSession
+from cli.config import cfg
 import argparse
 import requests
 import sys
@@ -77,7 +78,7 @@ class OgREST():
 
 
 class OgCLI():
-    def __init__(self, cfg):
+    def __init__(self):
         self.rest = OgREST(cfg['ip'], cfg['port'], cfg['api_token'])
 
     def list(self, args):

cli/config.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2020-2024 Soleta Networks <opengnsys@soleta.eu>
+#
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the
+# Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+import json
+
+OG_CLI_CFG_PATH = "/opt/opengnsys/etc/ogcli.json"
+
+def load_config():
+    data = None
+    try:
+        with open(OG_CLI_CFG_PATH, 'r') as json_file:
+            data = json.load(json_file)
+    except json.JSONDecodeError:
+        sys.exit(f'ERROR: Failed parse malformed JSON file {OG_CLI_CFG_PATH}')
+    except Exception as e:
+        sys.exit(f'ERROR: cannot open {OG_CLI_CFG_PATH}: {e}')
+
+    required_cfg_params = {'api_token', 'ip', 'port'}
+    difference_cfg_params = required_cfg_params - data.keys()
+    if len(difference_cfg_params) > 0:
+        sys.exit(f'Missing {difference_cfg_params} key in '
+                    f'json config file')
+    return data
+
+cfg = load_config()

ogcli

@@ -15,8 +15,6 @@ import argparse
 import json
 import sys
 
-OG_CLI_CFG_PATH = "/opt/opengnsys/etc/ogcli.json"
-
 def sigint_handler(signum, frame):
 	print("User has pressed ctrl-C, interrupting...")
 	sys.exit(1)
@@ -25,22 +23,8 @@ class CLI():
     def __init__(self):
         signal.signal(signal.SIGPIPE, signal.SIG_DFL)
         signal.signal(signal.SIGINT, sigint_handler)
-        try:
-            with open(OG_CLI_CFG_PATH, 'r') as json_file:
-                self.cfg = json.load(json_file)
-        except json.JSONDecodeError:
-            sys.exit(f'ERROR: Failed parse malformed JSON file '
-                     f'{OG_CLI_CFG_PATH}')
-        except:
-            sys.exit(f'ERROR: cannot open {OG_CLI_CFG_PATH}')
 
-        required_cfg_params = {'api_token', 'ip', 'port'}
-        difference_cfg_params = required_cfg_params - self.cfg.keys()
-        if len(difference_cfg_params) > 0:
-            sys.exit(f'Missing {difference_cfg_params} key in '
-                     f'json config file')
-
-        self.ogcli = OgCLI(self.cfg)
+        self.ogcli = OgCLI()
 
         parser = argparse.ArgumentParser(prog='ogcli')
         parser.add_argument('command', help='Subcommand to run', nargs='?',