From 1955eb67e57fbd93d4d8fd313445d84640b78377 Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Mon, 27 May 2019 23:05:06 +0200
Subject: all tools: Creating a shared group of argument options. Processing
 this shared group too, changing the log level when logging options are
 specified.

---
 src/ee/tools/__init__.py | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'src/ee/tools/__init__.py')

diff --git a/src/ee/tools/__init__.py b/src/ee/tools/__init__.py
index 112e306..0d4ef14 100644
--- a/src/ee/tools/__init__.py
+++ b/src/ee/tools/__init__.py
@@ -1,4 +1,6 @@
+import argparse
 import os.path
+import sys
 from pathlib import Path
 from typing import Union
 
@@ -34,3 +36,34 @@ def mk_dirs(path: Union[str, Path]):
 
     if not os.path.isdir(dirname):
         os.mkdir(dirname)
+
+
+def add_default_argparse_group(parser: argparse.ArgumentParser):
+    group = parser.add_argument_group("common")
+
+    # Ideally these would not be shown when the default output is shown (for example when missing a required argument),
+    # only when --help is given.
+
+    group.add_argument("-v", "--verbose",
+                       help="Verbose output",
+                       dest="verbose", action="store_const", const=True)
+
+    group.add_argument("--log",
+                       help="Set log level",
+                       choices=["warn", "info", "debug"],
+                       dest="log",
+                       metavar="LEVEL")
+
+
+def process_default_argparse_group(args):
+    if args.verbose is not None and args.log is not None:
+        print("Can't specify both -v and --log", file=sys.stderr)
+        sys.exit(1)
+
+    log_level = args.log
+    if args.verbose:
+        log_level = "debug"
+
+    log_level = log_level if log_level is not None else "info"
+
+    log.set_level(log_level)
-- 
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