[PATCH net-next] tools: ynl: add --list-ops and --list-msgs to CLI

[Jakub Kicinski <kuba@kernel.org>]

I often forget the exact naming of ops and have to look at
the spec to find it. Add support for listing the operations:

  $ ./cli.py --spec .../netdev.yaml --list-ops
  dev-get  [ do, dump ]
  page-pool-get  [ do, dump ]
  page-pool-stats-get  [ do, dump ]
  queue-get  [ do, dump ]
  napi-get  [ do, dump ]
  qstats-get  [ dump ]

For completeness also support listing all ops (including
notifications:

  # ./cli.py --spec .../netdev.yaml --list-msgs
  dev-get  [ dump, do ]
  dev-add-ntf  [ notify ]
  dev-del-ntf  [ notify ]
  dev-change-ntf  [ notify ]
  page-pool-get  [ dump, do ]
  page-pool-add-ntf  [ notify ]
  page-pool-del-ntf  [ notify ]
  page-pool-change-ntf  [ notify ]
  page-pool-stats-get  [ dump, do ]
  queue-get  [ dump, do ]
  napi-get  [ dump, do ]
  qstats-get  [ dump ]

Use double space after the name for slightly easier to read
output.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: donald.hunter@gmail.com
CC: jiri@resnulli.us
CC: alessandromarcolini99@gmail.com
---
 tools/net/ynl/cli.py        | 9 +++++++++
 tools/net/ynl/lib/nlspec.py | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/tools/net/ynl/cli.py b/tools/net/ynl/cli.py
index 058926d69ef0..b8481f401376 100755
--- a/tools/net/ynl/cli.py
+++ b/tools/net/ynl/cli.py
@@ -40,6 +40,8 @@ from lib import YnlFamily, Netlink, NlError
     group.add_argument('--multi', dest='multi', nargs=2, action='append',
                        metavar=('DO-OPERATION', 'JSON_TEXT'), type=str)
     group.add_argument('--dump', dest='dump', metavar='DUMP-OPERATION', type=str)
+    group.add_argument('--list-ops', action='store_true')
+    group.add_argument('--list-msgs', action='store_true')
 
     parser.add_argument('--sleep', dest='sleep', type=int)
     parser.add_argument('--subscribe', dest='ntf', type=str)
@@ -81,6 +83,13 @@ from lib import YnlFamily, Netlink, NlError
     if args.sleep:
         time.sleep(args.sleep)
 
+    if args.list_ops:
+        for op_name, op in ynl.ops.items():
+            print(op_name, " [", ", ".join(op.modes), "]")
+    if args.list_msgs:
+        for op_name, op in ynl.msgs.items():
+            print(op_name, " [", ", ".join(op.modes), "]")
+
     try:
         if args.do:
             reply = ynl.do(args.do, attrs, args.flags)
diff --git a/tools/net/ynl/lib/nlspec.py b/tools/net/ynl/lib/nlspec.py
index 6d08ab9e213f..b6d6f8aef423 100644
--- a/tools/net/ynl/lib/nlspec.py
+++ b/tools/net/ynl/lib/nlspec.py
@@ -335,6 +335,7 @@ jsonschema = None
 
         req_value       numerical ID when serialized, user -> kernel
         rsp_value       numerical ID when serialized, user <- kernel
+        modes           supported operation modes (do, dump, event etc.)
         is_call         bool, whether the operation is a call
         is_async        bool, whether the operation is a notification
         is_resv         bool, whether the operation does not exist (it's just a reserved ID)
@@ -350,6 +351,7 @@ jsonschema = None
         self.req_value = req_value
         self.rsp_value = rsp_value
 
+        self.modes = yaml.keys() & {'do', 'dump', 'event', 'notify'}
         self.is_call = 'do' in yaml or 'dump' in yaml
         self.is_async = 'notify' in yaml or 'event' in yaml
         self.is_resv = not self.is_async and not self.is_call
-- 
2.44.0