Implement for chainlib 0.4.x

python/CHANGELOG

@@ -1,3 +1,10 @@
+* 0.4.1
+	- Implement chainlib 0.4.x for giftable token
+	- Fix broken inputs in erc20 cli tools
+* 0.4.0
+	- Implement chainlib 0.3.0
+* 0.3.1
+	- Upgrade chainlib to 0.2.0
 * 0.1.10
 	- Apply transfer ownership protection in GiftableToken contract
 * 0.1.9

python/README.test

@@ -0,0 +1,3 @@
+On arch, Python.h is in non-standard location, which may cause pip install -r test_requirements to fail.
+
+If so, set env CFLAGS=`pkg-config --cflags python3`

python/eth_erc20/erc20.py

@@ -217,7 +217,6 @@ class ERC20(TxFactory):
         l = len(r)
         m = v[:l]
         if m != r:
-            logg.error('method mismatch, expected {}, got {}'.format(r, m))
             raise RequestMismatchException(v)
         cursor += l
 
@@ -244,7 +243,6 @@ class ERC20(TxFactory):
         l = len(r)
         m = v[:l]
         if m != r:
-            logg.error('method mismatch, expected {}, got {}'.format(r, m))
             raise RequestMismatchException(v)
         cursor += l
 
@@ -273,7 +271,6 @@ class ERC20(TxFactory):
         l = len(r)
         m = v[:l]
         if m != r:
-            logg.error('method mismatch, expected {}, got {}'.format(r, m))
             raise RequestMismatchException(v)
         cursor += l
 

python/eth_erc20/runnable/approve.py

@@ -1,99 +0,0 @@
-#!python3
-
-"""Token transfer script
-
-.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
-.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 
-
-"""
-
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-# standard imports
-import os
-import io
-import json
-import argparse
-import logging
-
-# external imports
-from hexathon import (
-        add_0x,
-        strip_0x,
-        )
-from chainlib.eth.connection import EthHTTPConnection
-from chainlib.chain import ChainSpec
-from chainlib.eth.runnable.util import decode_for_puny_humans
-from chainlib.eth.address import to_checksum_address
-import chainlib.eth.cli
-
-# local imports
-from eth_erc20 import ERC20
-
-logging.basicConfig(level=logging.WARNING)
-logg = logging.getLogger()
-
-arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC | chainlib.eth.cli.Flag.WALLET 
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
-argparser.add_positional('amount', type=int, help='Token amount to send')
-args = argparser.parse_args()
-extra_args = {
-    'amount': None,
-        }
-config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=100000)
-
-block_all = args.ww
-block_last = args.w or block_all
-
-wallet = chainlib.eth.cli.Wallet()
-wallet.from_config(config)
-
-rpc = chainlib.eth.cli.Rpc(wallet=wallet)
-conn = rpc.connect_by_config(config)
-
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
-
-value = config.get('_AMOUNT')
-
-send = config.true('_RPC_SEND')
-
-def main():
-
-    signer = rpc.get_signer()
-    signer_address = rpc.get_sender_address()
-
-    gas_oracle = rpc.get_gas_oracle()
-    nonce_oracle = rpc.get_nonce_oracle()
-
-    g = ERC20(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
-
-    recipient = to_checksum_address(config.get('_RECIPIENT'))
-    if not config.true('_UNSAFE') and recipient != add_0x(config.get('_RECIPIENT')):
-        raise ValueError('invalid checksum address for recipient')
-
-    token_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
-    if not config.true('_UNSAFE') and token_address != add_0x(config.get('_EXEC_ADDRESS')):
-        raise ValueError('invalid checksum address for contract')
-
-    (tx_hash_hex, o) = g.approve(token_address, signer_address, recipient, value, id_generator=rpc.id_generator)
-
-    if send:
-        conn.do(o)
-        if block_last:
-            r = conn.wait(tx_hash_hex)
-            if logg.isEnabledFor(logging.DEBUG):
-                sender_balance = balance(g, token_address, signer_address, id_generator=rpc.id_generator)
-                recipient_balance = balance(g, token_address, recipient, id_generator=rpc.id_generator)
-                logg.debug('sender {} balance after: {}'.format(signer_address, sender_balance))
-                logg.debug('recipient {} balance after: {}'.format(recipient, recipient_balance))
-            if r['status'] == 0:
-                logg.critical('VM revert. Wish I could tell you more')
-                sys.exit(1)
-        print(tx_hash_hex)
-
-    else:
-        print(o['params'][0])
-
-
-if __name__ == '__main__':
-    main()

python/eth_erc20/runnable/balance.py

@@ -26,6 +26,15 @@ import sha3
 
 # external imports
 import chainlib.eth.cli
+from chainlib.eth.cli.arg import (
+        Arg,
+        ArgFlag,
+        process_args,
+        )
+from chainlib.eth.cli.config import (
+        Config,
+        process_config,
+        )
 from chainlib.eth.address import to_checksum_address
 from chainlib.eth.connection import EthHTTPConnection
 from chainlib.eth.gas import (
@@ -33,35 +42,55 @@ from chainlib.eth.gas import (
         balance,
         )
 from chainlib.chain import ChainSpec
+from chainlib.eth.cli.log import process_log
+from chainlib.eth.settings import process_settings
+from chainlib.settings import ChainSettings
 
 # local imports
 from eth_erc20 import ERC20
 
-logging.basicConfig(level=logging.WARNING)
+
+def process_config_local(config, arg, args, flags):
+    recipient = None
+    address = config.get('_POSARG')
+    if address:
+        recipient = add_0x(address)
+    else:
+        recipient = stdin_arg()
+    config.add(recipient, '_RECIPIENT', False)
+    return config
+
+
 logg = logging.getLogger()
 
-arg_flags = chainlib.eth.cli.argflag_std_read | chainlib.eth.cli.Flag.EXEC
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
-argparser.add_positional('address', type=str, help='Ethereum address of recipient')
+arg_flags = ArgFlag()
+arg = Arg(arg_flags)
+flags = arg_flags.STD_READ | arg_flags.EXEC
+
+argparser = chainlib.eth.cli.ArgumentParser()
+argparser = process_args(argparser, arg, flags)
+argparser.add_argument('address', type=str, help='Ethereum address of recipient')
 args = argparser.parse_args()
-config = chainlib.eth.cli.Config.from_args(args, arg_flags)
 
-wallet = chainlib.eth.cli.Wallet()
-wallet.from_config(config)
-holder_address = args.address
-if wallet.get_signer_address() == None and holder_address != None:
-    holder_address = wallet.from_address(holder_address)
+logg = process_log(args, logg)
 
-rpc = chainlib.eth.cli.Rpc()
-conn = rpc.connect_by_config(config)
+config = Config()
+config = process_config(config, arg, args, flags, positional_name='address')
+config = process_config_local(config, arg, args, flags)
+logg.debug('config loaded:\n{}'.format(config))
 
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
-
-token_address = config.get('_EXEC_ADDRESS')
+settings = ChainSettings()
+settings = process_settings(settings, config)
+logg.debug('settings loaded:\n{}'.format(settings))
 
 
 def main():
-    g = ERC20(chain_spec=chain_spec, gas_oracle=rpc.get_gas_oracle())
+    token_address = settings.get('EXEC')
+    conn = settings.get('CONN')
+    g = ERC20(
+            chain_spec=settings.get('CHAIN_SPEC'),
+            gas_oracle=settings.get('GAS_ORACLE'),
+            )
 
     # determine decimals
     decimals_o = g.decimals(token_address)
@@ -80,7 +109,7 @@ def main():
     logg.info('symbol {}'.format(token_symbol))
 
     # get balance
-    balance_o = g.balance(token_address, holder_address)
+    balance_o = g.balance(token_address, settings.get('RECIPIENT'))
     r = conn.do(balance_o)
    
     hx = strip_0x(r)

python/eth_erc20/runnable/info.py

@@ -26,6 +26,16 @@ import sha3
 
 # external imports
 import chainlib.eth.cli
+from chainlib.eth.cli.arg import (
+        Arg,
+        ArgFlag,
+        process_args,
+        stdin_arg,
+        )
+from chainlib.eth.cli.config import (
+        Config,
+        process_config,
+        )
 from chainlib.eth.address import to_checksum_address
 from chainlib.eth.connection import EthHTTPConnection
 from chainlib.eth.gas import (
@@ -33,77 +43,105 @@ from chainlib.eth.gas import (
         balance,
         )
 from chainlib.chain import ChainSpec
+from chainlib.eth.settings import process_settings
+from chainlib.settings import ChainSettings
+from chainlib.eth.cli.log import process_log
 
 # local imports
 from eth_erc20 import ERC20
 
-logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
-arg_flags = chainlib.eth.cli.argflag_std_read | chainlib.eth.cli.Flag.EXEC
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
-argparser.add_positional('item', required=False)
+
+
+def process_config_local(config, arg, args, flags):
+    contract = None
+    try:
+        contract = config.get('_EXEC_ADDRESS')
+    except KeyError:
+        pass
+
+    if contract == None:
+        address = config.get('_POSARG')
+        if address:
+            contract = add_0x(address)
+        else:
+            contract = stdin_arg()
+
+    config.add(contract, '_CONTRACT', False)
+    return config
+
+
+arg_flags = ArgFlag()
+arg = Arg(arg_flags)
+flags = arg_flags.STD_READ | arg_flags.EXEC | arg_flags.TAB
+
+argparser = chainlib.eth.cli.ArgumentParser()
+argparser = process_args(argparser, arg, flags)
+argparser.add_argument('contract_address', type=str, help='Token contract address (may also be specified by -e)')
 args = argparser.parse_args()
-config = chainlib.eth.cli.Config.from_args(args, arg_flags)
 
-rpc = chainlib.eth.cli.Rpc()
-conn = rpc.connect_by_config(config)
+logg = process_log(args, logg)
 
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
+config = Config()
+config = process_config(config, arg, args, flags, positional_name='contract_address')
+config = process_config_local(config, arg, args, flags)
+logg.debug('config loaded:\n{}'.format(config))
 
-token_address = config.get('_EXEC_ADDRESS')
+settings = ChainSettings()
+settings = process_settings(settings, config)
+logg.debug('settings loaded:\n{}'.format(settings))
 
 
 def main():
-    g = ERC20(chain_spec=chain_spec, gas_oracle=rpc.get_gas_oracle())
+    token_address = config.get('_CONTRACT')
+    conn = settings.get('CONN')
+    g = ERC20(
+            chain_spec=settings.get('CHAIN_SPEC'),
+            gas_oracle=settings.get('GAS_ORACLE'),
+            )
 
-    if not args.item or args.item == 'name':
+    outkeys = config.get('_OUTARG')
+
+    if not outkeys or 'address' in outkeys:
         name_o = g.name(token_address)
         r = conn.do(name_o)
         token_name = g.parse_name(r)
         s = ''
-        if not args.item or not args.raw:
+        if not config.true('_RAW'):
             s = 'Name: '
         s += token_name
         print(s)
-        if args.item == 'name':
-            sys.exit(0)
 
-    if not args.item or args.item == 'symbol':
+    if not outkeys or 'symbol' in outkeys:
         symbol_o = g.symbol(token_address)
         r = conn.do(symbol_o)
         token_symbol = g.parse_symbol(r)
         s = ''
-        if not args.item or not args.raw:
+        if not config.true('_RAW'):
             s = 'Symbol: '
         s += token_symbol
         print(s)
-        if args.item == 'symbol':
-            sys.exit(0)
 
-    if not args.item or args.item == 'decimals':
+    if not outkeys or 'decimals' in outkeys:
         decimals_o = g.decimals(token_address)
         r = conn.do(decimals_o)
         decimals = int(strip_0x(r), 16)
         s = ''
-        if not args.item or not args.raw:
+        if not config.true('_RAW'):
             s = 'Decimals: '
         s += str(decimals)
         print(s)
-        if args.item == 'decimals':
-            sys.exit(0)
 
-    if not args.item or args.item == 'supply':
+    if not outkeys or 'supply' in outkeys:
         supply_o = g.total_supply(token_address)
         r = conn.do(supply_o)
         supply = int(strip_0x(r), 16)
         s = ''
-        if not args.item or not args.raw:
+        if not config.true('_RAW'):
             s = 'Supply: '
         s += str(supply)
         print(s)
-        if args.item == 'supply':
-            sys.exit(0)
 
 
 if __name__ == '__main__':

python/eth_erc20/runnable/transfer.py

@@ -21,49 +21,53 @@ from hexathon import (
         add_0x,
         strip_0x,
         )
-from chainlib.eth.connection import EthHTTPConnection
-from chainlib.chain import ChainSpec
-from chainlib.eth.runnable.util import decode_for_puny_humans
-from chainlib.eth.address import (
-        to_checksum_address,
-        is_same_address,
-        )
 import chainlib.eth.cli
+from chainlib.eth.cli.log import process_log
+from chainlib.eth.settings import process_settings
+from chainlib.settings import ChainSettings
+from chainlib.eth.cli.arg import (
+        Arg,
+        ArgFlag,
+        process_args,
+        )
+from chainlib.eth.cli.config import (
+        Config,
+        process_config,
+        )
 
 # local imports
 from eth_erc20 import ERC20
 
-logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
-arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC | chainlib.eth.cli.Flag.WALLET 
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
-argparser.add_argument('--from', type=str, help='Address to send on behalf of') 
-argparser.add_positional('amount', type=int, help='Token amount to send')
+
+def process_config_local(config, arg, args, flags):
+    config.add(config.get('_POSARG'), '_VALUE', False)
+    return config
+
+
+arg_flags = ArgFlag()
+arg = Arg(arg_flags)
+flags = arg_flags.STD_WRITE | arg_flags.EXEC | arg_flags.WALLET
+
+argparser = chainlib.eth.cli.ArgumentParser()
+argparser = process_args(argparser, arg, flags)
+argparser.add_argument('value', type=str, help='Token value to send')
 args = argparser.parse_args()
-extra_args = {
-    'amount': None,
-    'from': None,
-        }
-config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=100000)
 
-block_all = args.ww
-block_last = args.w or block_all
+logg = process_log(args, logg)
 
-wallet = chainlib.eth.cli.Wallet()
-wallet.from_config(config)
+config = Config()
+config = process_config(config, arg, args, flags, positional_name='value')
+config = process_config_local(config, arg, args, flags)
+logg.debug('config loaded:\n{}'.format(config))
 
-rpc = chainlib.eth.cli.Rpc(wallet=wallet)
-conn = rpc.connect_by_config(config)
-
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
-
-value = config.get('_AMOUNT')
-
-send = config.true('_RPC_SEND')
+settings = ChainSettings()
+settings = process_settings(settings, config)
+logg.debug('settings loaded:\n{}'.format(settings))
 
 
-def balance(generator, token_address, address, id_generator=None):
+def balance(conn, generator, token_address, address, id_generator=None):
     o = generator.balance(token_address, address, id_generator=id_generator)
     r = conn.do(o)
     token_balance = generator.parse_balance(r)
@@ -71,53 +75,33 @@ def balance(generator, token_address, address, id_generator=None):
 
 
 def main():
-    signer = rpc.get_signer()
-    signer_address = rpc.get_sender_address()
-
-    gas_oracle = rpc.get_gas_oracle()
-    nonce_oracle = rpc.get_nonce_oracle()
-
-    g = ERC20(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
-
-    recipient = to_checksum_address(config.get('_RECIPIENT'))
-    if not config.true('_UNSAFE') and recipient != add_0x(config.get('_RECIPIENT')):
-        raise ValueError('invalid checksum address for recipient')
-
-    token_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
-    if not config.true('_UNSAFE') and token_address != add_0x(config.get('_EXEC_ADDRESS')):
-        raise ValueError('invalid checksum address for contract')
-
-    transfer_from_address = None
-    if config.get('_FROM'):
-        transfer_from_address = to_checksum_address(config.get('_FROM'))
-        if not config.true('_UNSAFE') and transfer_from_address != add_0x(config.get('_FROM')):
-            raise ValueError('invalid checksum address for "from" argument')
-
-    check_balance_address = None
-    
+    token_address = settings.get('EXEC')
+    signer_address = settings.get('SENDER_ADDRESS')
+    recipient = settings.get('RECIPIENT')
+    value = settings.get('VALUE')
+    conn = settings.get('CONN')
+    g = ERC20(
+            settings.get('CHAIN_SPEC'),
+            signer=settings.get('SIGNER'),
+            gas_oracle=settings.get('GAS_ORACLE'),
+            nonce_oracle=settings.get('NONCE_ORACLE'),
+            )
     if logg.isEnabledFor(logging.DEBUG):
-        if transfer_from_address:
-            check_balance_address = transfer_from_address
-        else:
-            check_balance_address = signer_address
-        sender_balance = balance(g, token_address, check_balance_address, id_generator=rpc.id_generator)
-        recipient_balance = balance(g, token_address, recipient, id_generator=rpc.id_generator)
-        logg.debug('sender {} balance before: {}'.format(check_balance_address, sender_balance))
+        sender_balance = balance(conn, g, token_address, signer_address, id_generator=settings.get('RPC_ID_GENERATOR'))
+        recipient_balance = balance(conn, g, token_address, recipient, id_generator=settings.get('RPC_ID_GENERATOR'))
+        logg.debug('sender {} balance before: {}'.format(signer_address, sender_balance))
         logg.debug('recipient {} balance before: {}'.format(recipient, recipient_balance))
 
-    if transfer_from_address and not is_same_address(transfer_from_address, signer_address):
-        (tx_hash_hex, o) = g.transfer_from(token_address, signer_address, transfer_from_address, recipient, value, id_generator=rpc.id_generator)
-    else:
-        (tx_hash_hex, o) = g.transfer(token_address, signer_address, recipient, value, id_generator=rpc.id_generator)
+    (tx_hash_hex, o) = g.transfer(token_address, signer_address, recipient, value, id_generator=settings.get('RPC_ID_GENERATOR'))
 
-    if send:
+    if settings.get('RPC_SEND'):
         conn.do(o)
-        if block_last:
+        if settings.get('WAIT'):
             r = conn.wait(tx_hash_hex)
             if logg.isEnabledFor(logging.DEBUG):
-                sender_balance = balance(g, token_address, check_balance_address, id_generator=rpc.id_generator)
-                recipient_balance = balance(g, token_address, recipient, id_generator=rpc.id_generator)
-                logg.debug('sender {} balance after: {}'.format(check_balance_address, sender_balance))
+                sender_balance = balance(conn, g, token_address, signer_address, id_generator=settings.get('RPC_ID_GENERATOR'))
+                recipient_balance = balance(conn, g, token_address, recipient, id_generator=settings.get('RPC_ID_GENERATOR'))
+                logg.debug('sender {} balance after: {}'.format(signer_address, sender_balance))
                 logg.debug('recipient {} balance after: {}'.format(recipient, recipient_balance))
             if r['status'] == 0:
                 logg.critical('VM revert. Wish I could tell you more')

python/giftable_erc20_token/data/GiftableToken.json

@@ -1 +1 @@
-[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_minter","type":"address"},{"indexed":true,"internalType":"address","name":"_beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mintTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"removeMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
+[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_minter","type":"address"},{"indexed":true,"internalType":"address","name":"_beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mintTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"removeMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

python/giftable_erc20_token/factory.py

@@ -94,4 +94,6 @@ class GiftableToken(TxFactory):
         tx = self.template(sender_address, contract_address, use_nonce=True)
         tx = self.set_code(tx, data)
         tx = self.finalize(tx, tx_format)
-        return tx
+        return tx
+
+

python/giftable_erc20_token/runnable/deploy.py

@@ -1,3 +1,5 @@
+#!python3
+
 """Deploys giftable token
 
 .. moduleauthor:: Louis Holbrook <dev@holbrook.no>
@@ -18,56 +20,76 @@ from enum import Enum
 
 # external imports
 import chainlib.eth.cli
-from chainlib.chain import ChainSpec
-from chainlib.eth.connection import EthHTTPConnection
 from chainlib.eth.tx import receipt
+from chainlib.settings import ChainSettings
+from chainlib.eth.cli.log import process_log
+from chainlib.eth.settings import process_settings
+from chainlib.eth.cli.arg import (
+        Arg,
+        ArgFlag,
+        process_args,
+        )
+from chainlib.eth.cli.config import (
+        Config,
+        process_config,
+        )
+
 
 # local imports
 from giftable_erc20_token import GiftableToken
 
-logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
-arg_flags = chainlib.eth.cli.argflag_std_write
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
+
+def process_config_local(config, arg, args, flags):
+    config.add(args.token_name, '_TOKEN_NAME', False)
+    config.add(args.token_symbol, '_TOKEN_SYMBOL', False)
+    config.add(args.token_decimals, '_TOKEN_DECIMALS', False)
+    return config
+
+
+arg_flags = ArgFlag()
+arg = Arg(arg_flags)
+flags = arg_flags.STD_WRITE | arg_flags.WALLET
+
+argparser = chainlib.eth.cli.ArgumentParser()
+argparser = process_args(argparser, arg, flags)
 argparser.add_argument('--name', dest='token_name', required=True, type=str, help='Token name')
 argparser.add_argument('--symbol', dest='token_symbol', required=True, type=str, help='Token symbol')
 argparser.add_argument('--decimals', dest='token_decimals', default=18, type=int, help='Token decimals')
 args = argparser.parse_args()
 
-extra_args = {
-    'token_name': None,
-    'token_symbol': None,
-    'token_decimals': None,
-    }
-config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=GiftableToken.gas())
+logg = process_log(args, logg)
 
-wallet = chainlib.eth.cli.Wallet()
-wallet.from_config(config)
+config = Config()
+config = process_config(config, arg, args, flags)
+config = process_config_local(config, arg, args, flags)
+logg.debug('config loaded:\n{}'.format(config))
 
-rpc = chainlib.eth.cli.Rpc(wallet=wallet)
-conn = rpc.connect_by_config(config)
-
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
+settings = ChainSettings()
+settings = process_settings(settings, config)
+logg.debug('settings loaded:\n{}'.format(settings))
 
 
 def main():
-    signer = rpc.get_signer()
-    signer_address = rpc.get_sender_address()
+    signer_address = settings.get('SENDER_ADDRESS')
 
-    token_name = config.get('_TOKEN_NAME')
-    token_symbol = config.get('_TOKEN_SYMBOL')
-    token_decimals = config.get('_TOKEN_DECIMALS')
+    c = GiftableToken(
+            settings.get('CHAIN_SPEC'),
+            signer=settings.get('SIGNER'),
+            gas_oracle=settings.get('GAS_ORACLE'),
+            nonce_oracle=settings.get('NONCE_ORACLE'),
+            )
 
-    gas_oracle = rpc.get_gas_oracle()
-    nonce_oracle = rpc.get_nonce_oracle()
-
-    c = GiftableToken(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
-
-    (tx_hash_hex, o) = c.constructor(signer_address, token_name, token_symbol, token_decimals)
-    if config.get('_RPC_SEND'):
+    (tx_hash_hex, o) = c.constructor(
+            signer_address,
+            config.get('_TOKEN_NAME'),
+            config.get('_TOKEN_SYMBOL'),
+            config.get('_TOKEN_DECIMALS'),
+            )
+    if settings.get('RPC_SEND'):
         conn.do(o)
-        if config.get('_WAIT'):
+        if settings.get('WAIT'):
             r = conn.wait(tx_hash_hex)
             if r['status'] == 0:
                 sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you')

python/giftable_erc20_token/runnable/minter.py

@@ -17,10 +17,21 @@ import time
 
 # external imports
 import chainlib.eth.cli
-from chainlib.eth.connection import EthHTTPConnection
-from chainlib.chain import ChainSpec
 from chainlib.eth.tx import receipt
+from chainlib.settings import ChainSettings
+from chainlib.eth.cli.log import process_log
+from chainlib.eth.settings import process_settings
 from chainlib.eth.address import to_checksum_address
+from chainlib.eth.cli.arg import (
+        Arg,
+        ArgFlag,
+        process_args,
+        )
+from chainlib.eth.cli.config import (
+        Config,
+        process_config,
+        )
+
 from hexathon import (
         strip_0x,
         add_0x,
@@ -29,37 +40,41 @@ from hexathon import (
 # local imports
 from giftable_erc20_token import GiftableToken
 
-logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
-arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC | chainlib.eth.cli.Flag.WALLET
-argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
+
+def process_config_local(config, arg, args, flags):
+    config.add(args.rm, '_RM', False)
+    config.add(add_0x(args.minter_address[0]), '_MINTER_ADDRESS', False)
+    return config
+
+
+arg_flags = ArgFlag()
+arg = Arg(arg_flags)
+flags = arg_flags.STD_WRITE | arg_flags.EXEC | arg_flags.WALLET
+
+argparser = chainlib.eth.cli.ArgumentParser()
+argparser = process_args(argparser, arg, flags)
 argparser.add_argument('--rm', action='store_true', help='Remove entry')
-argparser.add_positional('minter_address', type=str, help='Address to add or remove as minter')
+argparser.add_argument('minter_address', type=str, help='Address to add or remove as minter')
 args = argparser.parse_args()
-extra_args = {
-    'rm': None,
-    'minter_address': None,
-    }
-config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=GiftableToken.gas())
 
-wallet = chainlib.eth.cli.Wallet()
-wallet.from_config(config)
+logg = process_log(args, logg)
 
-rpc = chainlib.eth.cli.Rpc(wallet=wallet)
-conn = rpc.connect_by_config(config)
+config = Config()
+config = process_config(config, arg, args, flags)
+config = process_config_local(config, arg, args, flags)
+logg.debug('config loaded:\n{}'.format(config))
 
-chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
+settings = ChainSettings()
+settings = process_settings(settings, config)
+logg.debug('settings loaded:\n{}'.format(settings))
 
 
 def main():
-    signer = rpc.get_signer()
-    signer_address = rpc.get_sender_address()
+    signer_address = settings.get('SENDER_ADDRESS')
 
-    gas_oracle = rpc.get_gas_oracle()
-    nonce_oracle = rpc.get_nonce_oracle()
-
-    recipient_address_input = config.get('_RECIPIENT')
+    recipient_address_input = settings.get('RECIPIENT')
     if recipient_address_input == None:
         recipient_address_input = signer_address
 
@@ -67,20 +82,30 @@ def main():
     if not config.true('_UNSAFE') and recipient_address != add_0x(recipient_address_input):
         raise ValueError('invalid checksum address for recipient')
 
-    token_address = add_0x(to_checksum_address(config.get('_EXEC_ADDRESS')))
-    if not config.true('_UNSAFE') and token_address != add_0x(config.get('_EXEC_ADDRESS')):
-        raise ValueError('invalid checksum address for contract')
-
     minter_address = config.get('_MINTER_ADDRESS')
-    c = GiftableToken(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
-    if config.get('_RM'):
-        (tx_hash_hex, o) = c.remove_minter(token_address, signer_address, minter_address)
-    else:
-        (tx_hash_hex, o) = c.add_minter(token_address, signer_address, minter_address)
+    c = GiftableToken(
+            settings.get('CHAIN_SPEC'),
+            signer=settings.get('SIGNER'),
+            gas_oracle=settings.get('GAS_ORACLE'),
+            nonce_oracle=settings.get('NONCE_ORACLE'),
+            )
 
-    if config.get('_RPC_SEND'):
+    if config.get('_RM'):
+        (tx_hash_hex, o) = c.remove_minter(
+                settings.get('EXEC'),
+                signer_address,
+                minter_address,
+                )
+    else:
+        (tx_hash_hex, o) = c.add_minter(
+                settings.get('EXEC'),
+                signer_address,
+                minter_address,
+                )
+
+    if settings.get('RPC_SEND'):
         conn.do(o)
-        if config.get('_WAIT'):
+        if settings.get('WAIT'):
             r = conn.wait(tx_hash_hex)
             if r['status'] == 0:
                 sys.stderr.write('EVM revert. Wish I had more to tell you')

python/requirements.txt

@@ -1,3 +1,3 @@
-confini~=0.5.2
-chainlib-eth~=0.0.14
-potaahto==0.1.0
+confini~=0.6.1
+chainlib-eth~=0.4.2
+potaahto~=0.1.1

python/run_tests.sh

@@ -2,8 +2,6 @@
 
 set -e
 set -x
-default_pythonpath=$PYTHONPATH:.
-export PYTHONPATH=${default_pythonpath:-.}
 for f in `ls tests/*.py`; do
 	python $f
 	if [ $? -gt 0 ]; then

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = eth-erc20
-version = 0.1.11
+version = 0.5.0
 description = ERC20 interface and simple contract with deployment script that lets any address mint and gift itself tokens.
 author = Louis Holbrook
 author_email = dev@holbrook.no

solidity/GiftableToken.json

@@ -1 +1 @@
-[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_minter","type":"address"},{"indexed":true,"internalType":"address","name":"_beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mintTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"removeMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
+[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_minter","type":"address"},{"indexed":true,"internalType":"address","name":"_beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"addMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mintTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"removeMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

solidity/GiftableToken.sol

@@ -24,7 +24,7 @@ contract GiftableToken {
 	event Transfer(address indexed _from, address indexed _to, uint256 _value);
 	event TransferFrom(address indexed _from, address indexed _to, address indexed _spender, uint256 _value);
 	event Approval(address indexed _owner, address indexed _spender, uint256 _value);
-	event Mint(address indexed _minter, address indexed _beneficiary, uint256 _value); // Minter
+	event Mint(address indexed _minter, address indexed _beneficiary, uint256 _value);
 
 	constructor(string memory _name, string memory _symbol, uint8 _decimals) public {
 		owner = msg.sender;
@@ -34,7 +34,6 @@ contract GiftableToken {
 		minters[msg.sender] = true;
 	}
 
-	// Implements Minter
 	function mintTo(address _to, uint256 _value) public returns (bool) {
 		require(minters[msg.sender]);
 
@@ -54,11 +53,6 @@ contract GiftableToken {
 		return true;
 	}
 
-	// Implements Writer
-	function addWriter(address _minter) public returns (bool) {
-		return addMinter(_minter);
-	}
-
 	function removeMinter(address _minter) public returns (bool) {
 		require(msg.sender == owner || msg.sender == _minter);
 
@@ -67,11 +61,6 @@ contract GiftableToken {
 		return true;
 	}
 
-	// Implements Writer
-	function deleteWriter(address _minter) public returns (bool) {
-		return removeMinter(_minter);
-	}
-
 	// Implements ERC20
 	function transfer(address _to, uint256 _value) public returns (bool) {
 		require(balanceOf[msg.sender] >= _value);
@@ -119,9 +108,6 @@ contract GiftableToken {
 		if (_sum == 0x01ffc9a7) { // EIP165
 			return true;
 		}
-		if (_sum == 0x80c84bd6) { // Writer
-			return true;
-		}
 		if (_sum == 0x9493f8b2) { // EIP173
 			return true;
 		}