Add stdin input to replace single positional argument

MANIFEST.in

@@ -1 +1 @@
-include requirements.txt
+include *requirements.txt LICENSE

chainlib/eth/runnable/checksum.py

@@ -1,5 +1,6 @@
 # standard imports
 import sys
+import select
 
 # external imports
 from hexathon import strip_0x
@@ -7,8 +8,25 @@ from hexathon import strip_0x
 # local imports
 from chainlib.eth.address import to_checksum_address
 
+v = None
+if len(sys.argv) > 1:
+    v = sys.argv[1]
+else:
+    h = select.select([sys.stdin], [], [], 0)
+    if len(h[0]) > 0:
+        v = h[0][0].read()
+        v = v.rstrip()
+
+if v == None:
+    sys.stderr.write('input missing\n')
+    sys.exit(1)
+
 def main():
-    print(to_checksum_address(strip_0x(sys.argv[1])))
+    try:
+        print(to_checksum_address(strip_0x(v)))
+    except ValueError as e:
+        sys.stderr.write('invalid input: {}\n'.format(e))
+        sys.exit(1)
 
 
 if __name__ == '__main__':

chainlib/eth/runnable/count.py

@@ -6,6 +6,7 @@ import os
 import json
 import argparse
 import logging
+import select
 
 # local imports
 from chainlib.eth.address import to_checksum
@@ -14,12 +15,20 @@ from chainlib.eth.tx import count
 from chainlib.chain import ChainSpec
 from crypto_dev_signer.keystore.dict import DictKeystore
 from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
+from hexathon import add_0x
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
 default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
 
+def stdin_arg():
+    h = select.select([sys.stdin], [], [], 0)
+    if len(h[0]) > 0:
+        v = h[0][0].read()
+        return v.rstrip()
+    return None
+
 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='evm:ethereum:1', help='Chain specification string')
@@ -28,15 +37,17 @@ argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFI
 argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
 argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-vv', action='store_true', help='Be more verbose')
-argparser.add_argument('address', type=str, help='Ethereum address of recipient')
+argparser.add_argument('address', nargs='?', type=str, default=stdin_arg(), help='Ethereum address of recipient')
 args = argparser.parse_args()
 
+if args.address == None:
+    argparser.error('need first positional argument or value from stdin')
+
 if args.vv:
     logg.setLevel(logging.DEBUG)
 elif args.v:
     logg.setLevel(logging.INFO)
 
-
 signer_address = None
 keystore = DictKeystore()
 if args.y != None:
@@ -52,7 +63,7 @@ def main():
     if not args.u and recipient != add_0x(args.address):
         raise ValueError('invalid checksum address')
 
-    o = count(args.address)
+    o = count(recipient)
     print(rpc.do(o))
 
 

chainlib/eth/runnable/decode.py

@@ -15,8 +15,9 @@ import os
 import json
 import argparse
 import logging
+import select
 
-# third-party imports
+# external imports
 from chainlib.eth.tx import unpack
 from chainlib.chain import ChainSpec
 
@@ -30,14 +31,27 @@ logg = logging.getLogger()
 default_abi_dir = os.environ.get('ETH_ABI_DIR', '/usr/share/local/cic/solidity/abi')
 default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
 
+def stdin_arg():
+    h = select.select([sys.stdin], [], [], 0)
+    if len(h[0]) > 0:
+        v = h[0][0].read()
+        return v.rstrip()
+    return None
+
 argparser = argparse.ArgumentParser()
-argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-i', '--chain-id', dest='i', default='evm:ethereum:1', type=str, help='Numeric network id')
-argparser.add_argument('tx', type=str, help='hex-encoded signed raw transaction')
+argparser.add_argument('tx', type=str, nargs='?', default=stdin_arg(), help='hex-encoded signed raw transaction')
+argparser.add_argument('-v', action='store_true', help='Be verbose')
+argparser.add_argument('-vv', action='store_true', help='Be more verbose')
 args = argparser.parse_args()
 
-if args.v:
+if args.tx == None:
+    argparser.error('need first positional argument or value from stdin')
+
+if args.vv:
     logg.setLevel(logging.DEBUG)
+elif args.v:
+    logg.setLevel(logging.INFO)
 
 chain_spec = ChainSpec.from_chain_str(args.i)
 

chainlib/eth/runnable/get.py

@@ -16,6 +16,7 @@ import json
 import argparse
 import logging
 import enum
+import select
 
 # external imports
 from hexathon import (
@@ -43,7 +44,14 @@ logg = logging.getLogger()
 default_abi_dir = os.environ.get('ETH_ABI_DIR', '/usr/share/local/cic/solidity/abi')
 default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
 
-argparser = argparse.ArgumentParser()
+def stdin_arg():
+    h = select.select([sys.stdin], [], [], 0)
+    if len(h[0]) > 0:
+        v = h[0][0].read()
+        return v.rstrip()
+    return None
+
+argparser = argparse.ArgumentParser('eth-get', description='display information about an Ethereum address or transaction', epilog='address/transaction can be provided as an argument or from standard input')
 argparser.add_argument('-p', '--provider', dest='p', default=default_eth_provider, type=str, help='Web3 provider url (http only)')
 argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
 argparser.add_argument('-t', '--token-address', dest='t', type=str, help='Token address. If not set, will return gas balance')
@@ -51,9 +59,12 @@ argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Au
 argparser.add_argument('--abi-dir', dest='abi_dir', type=str, default=default_abi_dir, help='Directory containing bytecode and abi (default {})'.format(default_abi_dir))
 argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-vv', action='store_true', help='Be more verbose')
-argparser.add_argument('item', type=str, help='Item to get information for (address og transaction)')
+argparser.add_argument('item', nargs='?', default=stdin_arg(), type=str, help='Item to get information for (address og transaction)')
 args = argparser.parse_args()
 
+if args.item == None:
+    argparser.error('need first positional argument or value from stdin')
+
 if args.vv:
     logg.setLevel(logging.DEBUG)
 elif args.v: