util.arguments: module to preprocess complex CLI arguments

gpoa/util/arguments.py

@@ -0,0 +1,40 @@
+import logging
+
+def set_loglevel(loglevel_num=None):
+    '''
+    Set the log level global value.
+    '''
+    loglevels = ['NOTSET', 'DEBUG', 'INFO', 'WARNING', 'ERROR', 'FATAL']
+    log_num = loglevel_num
+    log_level = 10
+
+    # A little bit of defensive programming
+    if not log_num:
+        log_num = 1
+    if 0 > log_num:
+        log_num = 0
+    if 5 < log_num:
+        log_num = 5
+
+    log_level = 10 * log_num
+
+    print('Setting log level to {}'.format(loglevels[log_num]))
+    logging.getLogger().setLevel(log_level)
+
+def process_target(target_name=None):
+    '''
+    The target may be 'All', 'Computer' or 'User'. This function
+    determines which one was specified.
+    '''
+    target = 'All'
+
+    if 'Computer' == target_name:
+        target = 'Computer'
+
+    if 'User' == target_name:
+        target = 'User'
+
+    logging.debug('Target is: {}'.format(target))
+
+    return target
+