From 668949dca760147f2930e6e16b0f4dcf5e254dcc Mon Sep 17 00:00:00 2001
From: Greg Hogan <gregjhogan@gmail.com>
Date: Tue, 19 Jan 2021 14:39:00 -0800
Subject: [PATCH] params helpers (#19788)

* params helpers

* add validation
old-commit-hash: 1dd3a1e8614e9d045ad9a80ec065f49139e1b78b
---
 common/params.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/common/params.py b/common/params.py
index 5a7a0d4102..0acb61fa64 100644
--- a/common/params.py
+++ b/common/params.py
@@ -2,3 +2,22 @@ from common.params_pyx import Params, UnknownKeyName, put_nonblocking # pylint:
 assert Params
 assert UnknownKeyName
 assert put_nonblocking
+
+if __name__ == "__main__":
+  import sys
+  from common.params_pyx import keys # pylint: disable=no-name-in-module, import-error
+
+  params = Params()
+  if len(sys.argv) == 3:
+    name = sys.argv[1]
+    val = sys.argv[2]
+    assert name.encode("utf-8") in keys.keys(), f"unknown param: {name}"
+    print(f"SET: {name} = {val}")
+    params.put(name, val)
+  elif len(sys.argv) == 2:
+    name = sys.argv[1]
+    assert name.encode("utf-8") in keys.keys(), f"unknown param: {name}"
+    print(f"GET: {name} = {params.get(name)}")
+  else:
+    for k in keys.keys():
+      print(f"GET: {k} = {params.get(k)}")