feat: deploy UniswapV2Multicall cmd (#36)

* feat: deploy UniswapV2Multicall cmd

* fix: linter issues

cmd/playground/tx/solidity/deployUniswapV2Multicall.go

@@ -0,0 +1,120 @@
+package solidity
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+
+	"github.com/hanchon/hanchond/playground/evmos"
+	"github.com/hanchon/hanchond/playground/filesmanager"
+	"github.com/hanchon/hanchond/playground/solidity"
+	"github.com/hanchon/hanchond/playground/sql"
+	"github.com/spf13/cobra"
+)
+
+// deployUniswapV2MulticallyCmd represents the deploy command
+var deployUniswapV2MulticallyCmd = &cobra.Command{
+	Use:   "deploy-uniswap-v2-multicall",
+	Args:  cobra.ExactArgs(0),
+	Short: "Deploy uniswap v2 multicall",
+	Run: func(cmd *cobra.Command, _ []string) {
+		queries := sql.InitDBFromCmd(cmd)
+		nodeID, err := cmd.Flags().GetString("node")
+		if err != nil {
+			fmt.Println("node not set")
+			os.Exit(1)
+		}
+
+		gasLimit, err := cmd.Flags().GetInt("gas-limit")
+		if err != nil {
+			fmt.Println("incorrect gas limit")
+			os.Exit(1)
+		}
+
+		// TODO: allow mainnet as a valid endpoint
+		e := evmos.NewEvmosFromDB(queries, nodeID)
+		builder := e.NewTxBuilder(uint64(gasLimit))
+
+		contractName := "/Multicall"
+		// Clone v2-minified if needed
+		path, err := solidity.DownloadUniswapV2Minified()
+		if err != nil {
+			fmt.Println(err.Error())
+			os.Exit(1)
+		}
+
+		// Keep working with the main contract
+		path = path + "/contracts" + contractName + ".sol"
+
+		// Set up temp folder
+		if err := filesmanager.CleanUpTempFolder(); err != nil {
+			fmt.Println("could not clean up the temp folder:", err.Error())
+			os.Exit(1)
+		}
+
+		folderName := "multicallBuilder"
+		if err := filesmanager.CreateTempFolder(folderName); err != nil {
+			fmt.Println("could not create the temp folder:", err.Error())
+			os.Exit(1)
+		}
+
+		// Compile the contract
+		err = solidity.CompileWithSolc("0.5.0", path, filesmanager.GetBranchFolder(folderName))
+		if err != nil {
+			fmt.Println("could not compile the erc20 contract:", err.Error())
+			os.Exit(1)
+		}
+
+		bytecode, err := filesmanager.ReadFile(filesmanager.GetBranchFolder(folderName) + contractName + ".bin")
+		if err != nil {
+			fmt.Printf("error reading the bytecode file:%s\n", err.Error())
+			os.Exit(1)
+		}
+
+		bytecode, err = hex.DecodeString(string(bytecode))
+		if err != nil {
+			fmt.Println("error converting bytecode to []byte:", err.Error())
+			os.Exit(1)
+		}
+
+		txHash, err := builder.DeployContract(0, bytecode, uint64(gasLimit))
+		if err != nil {
+			fmt.Printf("error sending the transaction: %s\n", err.Error())
+			os.Exit(1)
+		}
+
+		receipt, err := e.NewRequester().GetTransactionReceiptWithRetry(txHash, 15)
+		if err != nil {
+			fmt.Printf("error getting the tx receipt:%s\n", err.Error())
+		}
+
+		trace, err := e.NewRequester().GetTransactionTrace(txHash)
+		if err != nil {
+			fmt.Printf("error getting the tx trace:%s\n", err.Error())
+		}
+		if trace.Result.Error != "" {
+			fmt.Println("failed to execute the transaction:", trace.Result.Error)
+			os.Exit(1)
+		}
+
+		codeHash, err := e.NewRequester().EthCodeHash(receipt.Result.ContractAddress, "latest")
+		if err != nil {
+			fmt.Println("failed to get the eth code:", err.Error())
+			os.Exit(1)
+		}
+
+		fmt.Printf("{\"contract_address\":\"%s\", \"code_hash\":\"%s\", \"tx_hash\":\"%s\"}\n", receipt.Result.ContractAddress, "0x"+codeHash, txHash)
+
+		// Clean up files
+		if err := filesmanager.CleanUpTempFolder(); err != nil {
+			fmt.Println("could not clean up the temp folder:", err.Error())
+			os.Exit(1)
+		}
+		os.Exit(0)
+	},
+}
+
+func init() {
+	SolidityCmd.AddCommand(deployUniswapV2MulticallyCmd)
+	deployUniswapV2MulticallyCmd.Flags().Int("gas-limit", 20_000_000, "GasLimit to be used to deploy the transaction")
+}

docs/pages/hanchond/playground/tx/solidity/deployUniswapV2.mdx

@@ -28,3 +28,10 @@ Params:
 hanchond playground tx solidity deploy-uniswap-v2-router 0xbb48d7604b522abcbb2f2302d4c18d907c12fd31 0x491bacc7ec4569468f0c21b7ae3629cd9fa6aa39
 {"contract_address":"0xd6c873ad9f220279259609ec52fe17702bc47bf8", "code_hash":"0xfffa7b2f489b21362d74fd4ff2c3462d845afc0d0d8170785496d28bb1e568b0", "tx_hash":"0x09df30323ceaa33d5167e31a2faf834b3d253602626d2b256b76bb57a82ad33d"}
 ```
+
+## Deploy Multicall
+
+```sh
+hanchond playground tx solidity deploy-uniswap-v2-multicall
+{"contract_address":"0xdd0a082af196653c97bf0160aa5d54fe8b47b94e", "code_hash":"0x75af43a00dfd028a9b68d2fc636e3dd28fe2f452ffae82b03f6d6488118a3971", "tx_hash":"0xd1c1cff43639cc1f7baf24dfc60bf426b817739d841a49c4c5c7b3719c4f2854"}
+```