generate_contract.sh

#!/bin/bash
#*******************************************************************************
# Copyright © 2018 Software AG, Darmstadt, Germany and/or its licensors
# SPDX-License-Identifier: Apache-2.0
# Licensed under the Apache License, Version 2.0 (the "License");
# You may not use this file except in compliance with the License.
# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.                                                            
#*******************************************************************************

if [ -z "$1" ]; then
   echo "usage: "$0" <solc file name>"
   exit -1
fi

function getAbi {
   abi=$( echo $contractContent  | jq '.'$1'.abi' )
   abi=${abi/\"[/[}
   abi="var "$2" = web3.eth.contract("$abi");"
   abi=${abi/\}]\");/\}]);}
   abi=${abi//\\/''}
   echo $abi >> $CONTRACTPATH$JSFILE
   echo >> $CONTRACTPATH$JSFILE
}

function getBin {
   bin=$( echo $contractContent  | jq '.'$1'.bin' )
   bin="\"0x${bin/\"/''}"
   bin=${bin//\"/\'}
   gas="var "$3"Gas = web3.eth.estimateGas({data: "$bin"})*2;"
   bin="var "$3" = "$2".new(<parm1,parm2...,parmn>,{from: web3.eth.accounts[0], data: "$bin",gas: "$3"Gas }, function (e, contract){console.log(e, contract);if (typeof contract.address !== 'undefined') {console.log('Contract mined! address: ' + contract.address + ' transactionHash: ' + contract.transactionHash);}});"
   echo $gas >> $CONTRACTPATH$JSFILE
   echo >> $CONTRACTPATH$JSFILE
   echo $bin >> $CONTRACTPATH$JSFILE
   echo >> $CONTRACTPATH$JSFILE
}

CONTRACTFILE=$(basename "$1")
CONTRACTPATH=${1/$CONTRACTFILE/}
JSFILE=${CONTRACTFILE/.sol/.js}
CONTRACT=${CONTRACTFILE/.sol/}

#echo $CONTRACTFILE $CONTRACTPATH $JSFILE $CONTRACT

echo "var _$CONTRACT=`solc --optimize --combined-json abi,bin,interface $CONTRACTFILE`" > $CONTRACTPATH$JSFILE

contractContent=$(cat $CONTRACTPATH$JSFILE | cut -d'=' -f2 | jq '.contracts')
contract_keys="$( echo $contractContent | jq 'keys' )"
contract_keys=${contract_keys/[/''}
contract_keys=${contract_keys/]/''}
contract_keys=${contract_keys/,/' '}

contractKeyList="$contract_keys"

echo '' > $CONTRACTPATH$JSFILE

for key in $contractKeyList
do
   cObject=${key##*:}
   cObject=${cObject/\"/''}
   cContractName=$cObject"Contract"
   #echo $c $cObject $cContractName
   getAbi $key $cContractName
   getBin $key $cContractName $cObject
done

echo "// replace all <parm1,parm2...,parmn> with the actual values before loading this script" >> $CONTRACTPATH$JSFILE
echo "// in geth: run loadScript(\"$CONTRACTPATH$JSFILE\"); and wait ... " >> $CONTRACTPATH$JSFILE
echo "// if a contract cannot be mined -> play with the gas" >> $CONTRACTPATH$JSFILE
echo "// run the following commands in geth to enable contract:" >> $CONTRACTPATH$JSFILE
echo "// personal.unlockAccount(web3.eth.accounts[0], \"yourPassword\")" >> $CONTRACTPATH$JSFILE
echo "// eth.getCode(<your contract>.address) -> if you see anything else than \"0x\" you are there ..." >> $CONTRACTPATH$JSFILE
echo "// run in geth: <your contract>.<your contracts method>(<params>) to see it working ..." >> $CONTRACTPATH$JSFILE
echo "// to view contract mining: run txpool.status ..." >> $CONTRACTPATH$JSFILE
echo "// if you get 'Error: invalid address': provide an address as input var like {from:eth.accounts[0]} ..." >> $CONTRACTPATH$JSFILE
echo "// Alternatively you can set the default account using 'eth.defaultAccount=eth.accounts[0];'" >> $CONTRACTPATH$JSFILE