Add list runnable script

python/eth_token_index/runnable/list.py

@@ -6,6 +6,7 @@
 """
 
 # standard imports
+import sys
 import os
 import json
 import argparse
@@ -24,6 +25,7 @@ from eth_token_index import TokenUniqueSymbolIndex
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
+default_format = 'terminal'
 
 script_dir = os.path.dirname(__file__)
 data_dir = os.path.join(script_dir, '..', 'data')
@@ -32,8 +34,10 @@ argparser = argparse.ArgumentParser()
 argparser.add_argument('-p', '--provider', dest='p', default='http://localhost:8545', type=str, help='Web3 provider url (http only)')
 argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='Ethereum:1', help='Chain specification string')
 argparser.add_argument('-a', '--contract-address', dest='a', type=str, required=True, help='Token endorsement contract address')
+argparser.add_argument('-f', '--format', dest='f', type=str, default=default_format, help='Output format [human, brief]')
 argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-vv', action='store_true', help='Be more verbose')
+argparser.add_argument('token_symbol', type=str, nargs='?', help='Token symbol to return address for')
 args = argparser.parse_args()
 
 if args.vv:
@@ -44,24 +48,49 @@ elif args.v:
 rpc = EthHTTPConnection(args.p)
 contract_address = args.a
 
+token_symbol = args.token_symbol
+fmt = args.f
 
-def main():
-    ct = ERC20()
-    c = TokenUniqueSymbolIndex()
-    o = c.entry_count(contract_address)
+
+def out_element(e, fmt=default_format, w=sys.stdout):
+    if fmt == 'brief':
+        w.write(e[1] + '\n')
+    else:
+        w.write('{} {}\n'.format(e[0], e[1]))
+
+
+def element(ifc, contract_address, token_symbol, fmt=fmt, w=sys.stdout):
+    o = ifc.address_of(contract_address, token_symbol)
     r = rpc.do(o)
-    count = TokenUniqueSymbolIndex.parse_entry_count(r)
+    a = ifc.parse_address_of(r)
+    out_element((token_symbol, a), fmt, w)
+
+
+def ls(ifc, contract_address, token_ifc, fmt=fmt, w=sys.stdout):
+    o = ifc.entry_count(contract_address)
+    r = rpc.do(o)
+    count = ifc.parse_entry_count(r)
+    logg.debug('count {}'.format(count))
 
     for i in range(count):
-        o = c.entry(contract_address, i)
+        o = ifc.entry(contract_address, i)
         r = rpc.do(o)
-        token_address = TokenUniqueSymbolIndex.parse_entry(r)
+        token_address = ifc.parse_entry(r)
 
-        o = ct.symbol(token_address)
+        o = token_ifc.symbol(token_address)
         r = rpc.do(o)
-        token_symbol = ERC20.parse_symbol(r)
+        token_symbol = token_ifc.parse_symbol(r)
 
-        print('{} {}'.format(token_symbol, token_address))
+        element(ifc, contract_address, token_symbol, fmt, w)
+
+
+def main():
+    token_ifc = ERC20()
+    ifc = TokenUniqueSymbolIndex()
+    if token_symbol != None:
+        element(ifc, contract_address, token_ifc, token_symbol, fmt, sys.stdout)
+    else:
+        ls(ifc, contract_address, token_ifc, fmt, sys.stdout)
 
 
 if __name__ == '__main__':

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = eth-address-index
-version = 0.1.1a2
+version = 0.1.1a3
 description = Signed metadata declarations for ethereum addresses
 author = Louis Holbrook
 author_email = dev@holbrook.no