Add dumpconfig command flag

chainlib/cli/arg.py

@@ -97,6 +97,9 @@ class ArgumentParser(argparse.ArgumentParser):
                     self.add_argument(arg[0], nargs='?', type=arg[1], help=arg[2])
         args = super(ArgumentParser, self).parse_args(args=argv)
 
+        if args.dumpconfig:
+            return args
+
         if len(self.pos_args) == 1:
             arg = self.pos_args[0]
             argname = arg[0]
@@ -131,6 +134,7 @@ class ArgumentParser(argparse.ArgumentParser):
         if arg_flags & Flag.CONFIG:
             self.add_argument('-c', '--config', type=str, default=env.get('CONFINI_DIR'), help='Configuration directory')
             self.add_argument('-n', '--namespace', type=str, help='Configuration namespace')
+            self.add_argument('--dumpconfig', action='store_true', help='Output configuration and quit. Use with --raw to omit values and output schema only.')
         if arg_flags & Flag.WAIT:
             self.add_argument('-w', action='store_true', help='Wait for the last transaction to be confirmed')
             self.add_argument('-ww', action='store_true', help='Wait for every transaction to be confirmed')

chainlib/cli/config.py

@@ -1,6 +1,7 @@
 # standard imports
 import logging
 import os
+import sys
 
 # external imports
 import confini
@@ -35,7 +36,7 @@ class Config(confini.Config):
     default_fee_limit = 0
 
     @classmethod
-    def from_args(cls, args, arg_flags=0x0f, env=os.environ, extra_args={}, base_config_dir=None, default_config_dir=None, user_config_dir=None, default_fee_limit=None, logger=None, load_callback=logcallback):
+    def from_args(cls, args, arg_flags=0x0f, env=os.environ, extra_args={}, base_config_dir=None, default_config_dir=None, user_config_dir=None, default_fee_limit=None, logger=None, load_callback=logcallback, dump_writer=sys.stdout):
         """Parses arguments in argparse.ArgumentParser instance, then match and override configuration values that match them.
 
         The method processes all known argument flags from chainlib.cli.Flag passed in the "args" argument. 
@@ -155,6 +156,9 @@ class Config(confini.Config):
         config = confini.Config(config_dir, env_prefix=env_prefix, override_dirs=override_config_dirs)
         config.process()
 
+        config.add(getattr(args, 'raw'), '_RAW')
+        
+
         args_override = {}
 
         if arg_flags & Flag.PROVIDER:
@@ -205,8 +209,6 @@ class Config(confini.Config):
         if arg_flags & Flag.EXEC:
             config.add(getattr(args, 'executable_address'), '_EXEC_ADDRESS')
 
-        config.add(getattr(args, 'raw'), '_RAW')
-
         if arg_flags & Flag.CONFIG:
             config.add(getattr(args, 'namespace'), 'CONFIG_USER_NAMESPACE')
 
@@ -227,6 +229,21 @@ class Config(confini.Config):
             if existing_r == None or r != None:
                 config.add(r, v, exists_ok=True)
 
+        if getattr(args, 'dumpconfig'):
+            config_keys = config.all()
+            with_values = not config.get('_RAW')
+            for k in config_keys:
+                if k[0] == '_':
+                    continue
+                s = k + '='
+                if with_values:
+                    v = config.get(k)
+                    if v != None:
+                        s += str(v)
+                s += '\n'
+                dump_writer.write(s)
+            sys.exit(0)
+
         if load_callback != None:
             load_callback(config)
 

chainlib/cli/rpc.py

@@ -47,6 +47,9 @@ class Rpc:
         :rtype: chainlib.connection.RPCConnection
         :returns: An established rpc connection
         """
+        if config.get('RPC_SCHEME') != 'http':
+            raise NotImplementedError('Only http(s) scheme is implemented for RPC connections at this time')
+
         auth = None
         if config.get('RPC_AUTH') == 'basic':
             from chainlib.auth import BasicAuth
@@ -58,7 +61,7 @@ class Rpc:
             self.id_generator = IntSequenceGenerator()
 
         self.chain_spec = config.get('CHAIN_SPEC')
-        self.conn = self.constructor(url=config.get('RPC_HTTP_PROVIDER'), chain_spec=self.chain_spec, auth=auth)
+        self.conn = self.constructor(url=config.get('RPC_PROVIDER'), chain_spec=self.chain_spec, auth=auth)
 
         return self.conn
 

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = chainlib
-version = 0.0.9a7
+version = 0.0.9a9
 description = Generic blockchain access library and tooling
 author = Louis Holbrook
 author_email = dev@holbrook.no