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shell script to document migrate process

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Scott Sadler 6 years ago
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a839f9bc02
  1. 61
      migratecoin.md
  2. 43
      migratecoin.sh

61
migratecoin.md

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# MigrateCoin protocol
## ExportCoins tx:
```
vin:
[ any ]
vout:
- amount: {burnAmount}
script: OP_RETURN "send to ledger {id} {voutsHash}"
```
* ExportCoin is a standard tx which burns coins in an OP_RETURN
## ImportCoins tx:
```
vin:
- txid: 0000000000000000000000000000000000000000000000000000000000000000
idx: 0
script: CC_EVAL(EVAL_IMPORTCOINS, {momoProof},{exportCoin}) OP_CHECKCRYPTOCONDITION_UNILATERAL
vout:
- [ vouts matching voutsHash in exportCoin ]
```
* ImportCoin transaction has no signature
* ImportCoin is non malleable
* ImportCoin satisfies tx.IsCoinBase()
* ImportCoin uses a new opcode which allows a one sided check (no scriptPubKey)
* ImportCoin must contain CC opcode EVAL_IMPORTCOINS
* ImportCoin fees are equal to the difference between burnAmount in exportCoins and the sum of outputs.

43
migratecoin.sh

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#!/usr/bin/bash
# This script makes the neccesary transactions to migrate
# coin between 2 assetchains on the same -ac_cc id
set -e
source=TXSCL
target=TXSCL000
address="RFw7byY4xZpZCrtkMk3nFuuG1NTs9rSGgQ"
amount=1
# Alias for running cli on source chain
cli_source="komodo-cli -ac_name=$source"
# Raw tx that we will work with
txraw=`$cli_source createrawtransaction "[]" "{\"$address\":$amount}"`
# Convert to an export tx
exportData=`$cli_source migrate_converttoexport $txraw $target $amount`
exportRaw=`echo $exportData | jq -r .exportTx`
exportPayouts=`echo $exportData | jq -r .payouts`
# Fund
exportFundedData=`$cli_source fundrawtransaction $exportRaw`
exportFundedTx=`echo $exportFundedData | jq -r .hex`
# Sign
exportSignedData=`$cli_source signrawtransaction $exportFundedTx`
exportSignedTx=`echo $exportSignedData | jq -r .hex`
# Send
echo "Sending export tx"
$cli_source sendrawtransaction $exportSignedTx
read -p "Wait for a notarisation to KMD, and then two more notarisations from the target chain, and then press enter to continue"
# Create import
importTx=`$cli_source migrate_createimporttransaction $exportSignedTx $payouts`
importTx=`komodo-cli migrate_completeimporttransaction $importTx`
# Send import
komodo-cli -ac_name=$target sendrawtransaction $importTx
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