Implement Argument Parsing

1 files changed, 38 insertions, 2 deletions

diff --git a/src/xbackup/script.py b/src/xbackup/script.py
index 198b6b3..9424b83 100644
--- a/src/xbackup/script.py
+++ b/src/xbackup/script.py
@@ -6,10 +6,46 @@
 
 
 import argparse
+import time
+import sys
 
 
 def run():
     """runs xbackup script functionality"""
 
-    parser = argparse.ArgumentParser()
-    parser.parse_args()
+    args = parse_arguments()
+
+    if args.command == "backup":
+        print("Performing dummy backup based on '{}'".format(args.config))
+        time.sleep(1)
+        print("Done!")
+    else:
+        print("Unknown command '{}'".format(args.command))
+        sys.exit(1)
+
+def parse_arguments():
+    """handles argument parsing with the argparse module"""
+
+    # parser creation
+    parser = argparse.ArgumentParser(
+        prog="xbackup",
+        description="xbackup CLI Script to make a File-based full System Backup",
+        epilog="Project page: https://gitea.xengineering.eu/xengineering/xbackup",
+    )
+
+    # positional arguments
+    parser.add_argument("command", type=str,
+        help="the action to be performed",
+        choices=["backup"],
+    )
+
+    # optional arguments
+    parser.add_argument("-c", "--config", type=str,
+        metavar="CONFIG",
+        help="path to the JSON configuration file",
+        default="/etc/xbackup/config.json",
+    )
+
+    # argument parsing
+    args = parser.parse_args()
+    return args