netdev - [PATCH net-next v2 01/13] tools/net/ynl: Add --output-json arg to ynl cli

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Message-ID: <20240129223458.52046-2-donald.hunter@gmail.com>
Date: Mon, 29 Jan 2024 22:34:46 +0000
From: Donald Hunter <donald.hunter@...il.com>
To: netdev@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	linux-doc@...r.kernel.org,
	Jacob Keller <jacob.e.keller@...el.com>,
	Breno Leitao <leitao@...ian.org>,
	Jiri Pirko <jiri@...nulli.us>,
	Alessandro Marcolini <alessandromarcolini99@...il.com>
Cc: donald.hunter@...hat.com,
	Donald Hunter <donald.hunter@...il.com>
Subject: [PATCH net-next v2 01/13] tools/net/ynl: Add --output-json arg to ynl cli

The ynl cli currently emits python pretty printed structures which is
hard to consume. Add a new --output-json argument to emit JSON.

Signed-off-by: Donald Hunter <donald.hunter@...il.com>
Reviewed-by: Breno Leitao <leitao@...ian.org>
---
 tools/net/ynl/cli.py | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/tools/net/ynl/cli.py b/tools/net/ynl/cli.py
index 2ad9ec0f5545..0f8239979670 100755
--- a/tools/net/ynl/cli.py
+++ b/tools/net/ynl/cli.py
@@ -9,6 +9,15 @@ import time
 from lib import YnlFamily, Netlink
 
 
+class YnlEncoder(json.JSONEncoder):
+    def default(self, obj):
+        if isinstance(obj, bytes):
+            return bytes.hex(obj)
+        if isinstance(obj, set):
+            return list(obj)
+        return json.JSONEncoder.default(self, obj)
+
+
 def main():
     parser = argparse.ArgumentParser(description='YNL CLI sample')
     parser.add_argument('--spec', dest='spec', type=str, required=True)
@@ -28,8 +37,15 @@ def main():
     parser.add_argument('--append', dest='flags', action='append_const',
                         const=Netlink.NLM_F_APPEND)
     parser.add_argument('--process-unknown', action=argparse.BooleanOptionalAction)
+    parser.add_argument('--output-json', action='store_true')
     args = parser.parse_args()
 
+    def output(msg):
+        if args.output_json:
+            print(json.dumps(msg, cls=YnlEncoder))
+        else:
+            pprint.PrettyPrinter().pprint(msg)
+
     if args.no_schema:
         args.schema = ''
 
@@ -47,14 +63,14 @@ def main():
 
     if args.do:
         reply = ynl.do(args.do, attrs, args.flags)
-        pprint.PrettyPrinter().pprint(reply)
+        output(reply)
     if args.dump:
         reply = ynl.dump(args.dump, attrs)
-        pprint.PrettyPrinter().pprint(reply)
+        output(reply)
 
     if args.ntf:
         ynl.check_ntf()
-        pprint.PrettyPrinter().pprint(ynl.async_msg_queue)
+        output(ynl.async_msg_queue)
 
 
 if __name__ == "__main__":
-- 
2.42.0