Update README.md to describe new ecotone-scalar decode flag (ethereum-optimism#10565)

Roberto Bayardo · web-flow · commit ebedd65dc8bd · 2024-05-21T09:49:03.000Z
* Update README.md to describe new ecotone-scalar decode flag ecotone-scalar was updated in ethereum-optimism#10547 to support value decoding but didn't include an update to this documentation. * allow non-decimal scalar values to decode
diff --git a/op-chain-ops/cmd/ecotone-scalar/README.md b/op-chain-ops/cmd/ecotone-scalar/README.md
@@ -18,3 +18,9 @@ blob base fee parameters respectively, for example:
 ```sh
 ./bin/ecotone-scalar --scalar=7600 --blob-scalar=862000
 ```
+
+You can also use the utility to decode a versioned value into its components:
+
+```sh
+./bin/ecotone-scalar --decode=452312848583266388373324160190187140051835877600158453279134021569375896653
+```
diff --git a/op-chain-ops/cmd/ecotone-scalar/main.go b/op-chain-ops/cmd/ecotone-scalar/main.go
@@ -37,7 +37,7 @@ func main() {
 			os.Exit(2)
 		}
 		uint256 := new(big.Int)
-		_, ok := uint256.SetString(decode, 10)
+		_, ok := uint256.SetString(decode, 0)
 		if !ok {
 			fmt.Fprintln(flag.CommandLine.Output(), "failed to parse int from post-ecotone scalar")
 			flag.Usage()

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,7 @@ func main() {`
`37`	`37`	`os.Exit(2)`
`38`	`38`	`}`
`39`	`39`	`uint256 := new(big.Int)`
`40`		`- _, ok := uint256.SetString(decode, 10)`
	`40`	`+ _, ok := uint256.SetString(decode, 0)`
`41`	`41`	`if !ok {`
`42`	`42`	`fmt.Fprintln(flag.CommandLine.Output(), "failed to parse int from post-ecotone scalar")`
`43`	`43`	`flag.Usage()`