Provide an option to disable writing developer certificate to cloud_credentials.c

Author: aashishc1988

tools/device_management.py

@@ -51,6 +51,9 @@ def __init__(self, *args, **kwargs):
             "Create or transform a manifest. "
             "Use {} [command] -h for help on each command."
         ).format(self.parser.prog)
+        subparserActionLength = len(self.parser._subparsers._actions)
+        initParser = self.parser._subparsers._actions[subparserActionLength-1].choices['init']
+        initParser.add_argument('--disable-cert', help='Disable writing the developer certificate to mbed_cloud_dev_credentials.c')
 
     def _addCreateArgs(self, parser, exclusions=[]):
         if 'payload' not in exclusions:
@@ -131,10 +134,14 @@ def inner(options):
                 "mbed-cli-auto {}".format(api_key.name),
                 description="cetificate auto-generated by Mbed CLI"
             )
-        LOG.info("Writing developer certificate %s into c file "
+        if getattr(options, 'disable_cert'):
+            LOG.warning("Developer certificate %s not written to "
+                "mbed_cloud_dev_credentials.c", dev_cert_info.name)
+        else:
+            LOG.info("Writing developer certificate %s into c file "
                  "mbed_cloud_dev_credentials.c", dev_cert_info.name)
-        with open("mbed_cloud_dev_credentials.c", "w") as fout:
-            fout.write(dev_cert_info.header_file)
+            with open("mbed_cloud_dev_credentials.c", "w") as fout:
+                fout.write(dev_cert_info.header_file)
         return func(options)
     return inner