feat: chainspec, positional args, docfix

chainlib/chain.py

@@ -16,12 +16,12 @@ class ChainSpec:
     :param tag: Descriptive tag
     :type tag: str
     """
-    def __init__(self, engine, common_name, network_id, tag=None):
+    def __init__(self, arch, fork, network_id, common_name=None):
         self.o = {
-                'engine': engine,
+                'arch': arch,
-                'common_name': common_name,
+                'fork': fork,
                 'network_id': network_id,
-                'tag': tag,
+                'common_name': common_name,
                 }
 
     def network_id(self):
@@ -48,7 +48,7 @@ class ChainSpec:
         :rtype: str
         :returns: engine
         """
-        return self.o['engine']
+        return self.o['arch']
 
 
     def common_name(self):
@@ -78,10 +78,10 @@ class ChainSpec:
         o = chain_str.split(':')
         if len(o) < 3:
             raise ValueError('Chain string must have three sections, got {}'.format(len(o)))
-        tag = None
+        common_name = None
         if len(o) == 4:
-            tag = o[3]
+            common_name = o[3]
-        return ChainSpec(o[0], o[1], int(o[2]), tag)
+        return ChainSpec(o[0], o[1], int(o[2]), common_name)
 
 
     @staticmethod
@@ -100,7 +100,7 @@ class ChainSpec:
         :rtype: chainlib.chain.ChainSpec
         :returns: Resulting chain spec
         """
-        return ChainSpec(o['engine'], o['common_name'], o['network_id'], tag=o['tag'])
+        return ChainSpec(o['arch'], o['fork'], o['network_id'], common_name=o['common_name'])
 
   
     def asdict(self):
@@ -113,7 +113,7 @@ class ChainSpec:
 
 
     def __str__(self):
-        s = '{}:{}:{}'.format(self.o['engine'], self.o['common_name'], self.o['network_id'])
+        s = '{}:{}:{}'.format(self.o['arch'], self.o['fork'], self.o['network_id'])
-        if self.o['tag'] != None:
+        if self.o['common_name'] != None:
-            s += ':' + self.o['tag']
+            s += ':' + self.o['common_name']
         return s

chainlib/cli/arg.py

@@ -57,7 +57,7 @@ class ArgumentParser(argparse.ArgumentParser):
         self.pos_args = []
 
 
-    def add_positional(self, name, type=str, help=None, required=True):
+    def add_positional(self, name, type=str, help=None, append=False, required=True):
         """Add a positional argument.
 
         Stdin piping will only be possible in the event a single positional argument is defined.
@@ -73,7 +73,7 @@ class ArgumentParser(argparse.ArgumentParser):
         :param required: If true, argument will be set to required
         :type required: bool
         """
-        self.pos_args.append((name, type, help, required,))
+        self.pos_args.append((name, type, help, required, append,))
 
 
     def parse_args(self, argv=sys.argv[1:]):
@@ -88,13 +88,23 @@ class ArgumentParser(argparse.ArgumentParser):
         """
         if len(self.pos_args) == 1:
             arg = self.pos_args[0]
-            self.add_argument(arg[0], nargs='?', type=arg[1], default=stdin_arg(), help=arg[2])
+            if arg[4]:
+                self.add_argument(arg[0], nargs='*', type=arg[1], default=stdin_arg(), help=arg[2])
+            else:
+                self.add_argument(arg[0], nargs='?', type=arg[1], default=stdin_arg(), help=arg[2])
         else:
             for arg in self.pos_args:
                 if arg[3]:
-                    self.add_argument(arg[0], type=arg[1], help=arg[2])
+                    if arg[4]:
+                        logg.debug('argumen')
+                        self.add_argument(arg[0], nargs='+', type=arg[1], help=arg[2])
+                    else:
+                        self.add_argument(arg[0], type=arg[1], help=arg[2])
                 else:
-                    self.add_argument(arg[0], nargs='?', type=arg[1], help=arg[2])
+                    if arg[4]:
+                        self.add_argument(arg[0], nargs='*', type=arg[1], help=arg[2])
+                    else:
+                        self.add_argument(arg[0], type=arg[1], help=arg[2])
         args = super(ArgumentParser, self).parse_args(args=argv)
 
         if args.dumpconfig:

chainlib/cli/config.py

@@ -170,7 +170,6 @@ class Config(confini.Config):
         args_override = {}
 
         if arg_flags & Flag.PROVIDER:
-            args_override['RPC_HTTP_PROVIDER'] = getattr(args, 'p')
             args_override['RPC_PROVIDER'] = getattr(args, 'p')
             args_override['RPC_DIALECT'] = getattr(args, 'rpc_dialect')
         if arg_flags & Flag.CHAIN_SPEC:

chainlib/cli/wallet.py

@@ -1,9 +1,6 @@
 # standard imports
 import logging
 
-# external imports
-from crypto_dev_signer.keystore.dict import DictKeystore
-
 logg = logging.getLogger(__name__)
 
 
@@ -19,7 +16,7 @@ class Wallet:
     :todo: sign_transaction_to_rlp from chainlib-eth must be renamed to sign_transaction_to_wire, and included as part of signer interface
     """
     
-    def __init__(self, signer_cls, keystore=DictKeystore(), checksummer=None):
+    def __init__(self, signer_cls, keystore=None, checksummer=None):
         self.signer_constructor = signer_cls
         self.keystore = keystore
         self.signer = None

chainlib/connection.py

@@ -23,7 +23,10 @@ from .jsonrpc import (
         ErrorParser,
         )
 from .http import PreemptiveBasicAuthHandler
-from .error import JSONRPCException
+from .error import (
+        JSONRPCException,
+        RPCException,
+        )
 from .auth import Auth
 
 logg = logging.getLogger(__name__)
@@ -309,7 +312,10 @@ class JSONRPCHTTPConnection(HTTPConnection):
             ho = build_opener(handler)
             install_opener(ho)
 
-        r = urlopen(req, data=data.encode('utf-8'))
+        try: 
+            r = urlopen(req, data=data.encode('utf-8'))
+        except URLError as e:
+            raise RPCException(e)
 
         result = json.load(r)
         logg.debug('(HTTP) recv {}'.format(result))

chainlib/data/config/config.ini

@@ -1,5 +1,4 @@
 [rpc]
-http_provider = 
 provider =
 auth = 
 credentials =

requirements.txt

@@ -1,3 +1,3 @@
-crypto-dev-signer>=0.4.15rc2,<=0.4.15
+funga>=0.5.1a1,<0.6.0
 pysha3==1.0.2
 hexathon~=0.0.1a8

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = chainlib
-version = 0.0.9rc1
+version = 0.0.10a7
 description = Generic blockchain access library and tooling
 author = Louis Holbrook
 author_email = dev@holbrook.no

tests/test_chain.py

@@ -7,6 +7,13 @@ from tests.base import TestBase
 
 class TestChain(TestBase):
 
+    def test_chain_spec_str(self):
+        s = ChainSpec('foo', 'bar', 3, 'baz')
+        self.assertEqual('foo:bar:3:baz', str(s))
+
+        s = ChainSpec('foo', 'bar', 3)
+        self.assertEqual('foo:bar:3', str(s))
+
     def test_chain_spec(self):
 
         s = ChainSpec.from_chain_str('foo:bar:3')
@@ -18,5 +25,18 @@ class TestChain(TestBase):
             s = ChainSpec.from_chain_str('foo')
 
 
+    def test_chain_spec_dict(self):
+        s = 'foo:bar:3:baz'
+        c = ChainSpec.from_chain_str('foo:bar:3:baz')
+        d = c.asdict()
+        self.assertEqual(d['arch'], 'foo')
+        self.assertEqual(d['fork'], 'bar')
+        self.assertEqual(d['network_id'], 3)
+        self.assertEqual(d['common_name'], 'baz')
+        cc = ChainSpec.from_dict(d)
+        self.assertEqual(s, str(cc))
+
+
+
 if __name__ == '__main__':
     unittest.main()