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cmd/evm: Allow loading input from file (#20273)

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Make it possible to load input from a file. Simlar to `--code` / `--codefile`, have `--input`/`--inputfile`.
This commit is contained in:
Michael Forney 2019-11-17 06:45:54 -08:00 committed by Martin Holst Swende
parent 738b51ae31
commit 9e71f55bfa
2 changed files with 17 additions and 2 deletions
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5
cmd/evm/main.go
View File

@ -79,6 +79,10 @@ var (
Name: "input",
Usage: "input for the EVM",
}
InputFileFlag = cli.StringFlag{
Name: "inputfile",
Usage: "file containing input for the EVM",
}
VerbosityFlag = cli.IntFlag{
Name: "verbosity",
Usage: "sets the verbosity level",
@ -130,6 +134,7 @@ func init() {
ValueFlag,
DumpFlag,
InputFlag,
InputFileFlag,
MemProfileFlag,
CPUProfileFlag,
StatDumpFlag,

14
cmd/evm/runner.go
View File

@ -205,14 +205,24 @@ func runCmd(ctx *cli.Context) error {
}
tstart := time.Now()
var leftOverGas uint64
var hexInput []byte
if inputFileFlag := ctx.GlobalString(InputFileFlag.Name); inputFileFlag != "" {
if hexInput, err = ioutil.ReadFile(inputFileFlag); err != nil {
fmt.Printf("could not load input from file: %v\n", err)
os.Exit(1)
}
} else {
hexInput = []byte(ctx.GlobalString(InputFlag.Name))
}
input := common.FromHex(string(bytes.TrimSpace(hexInput)))
if ctx.GlobalBool(CreateFlag.Name) {
input := append(code, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name))...)
input = append(code, input...)
ret, _, leftOverGas, err = runtime.Create(input, &runtimeConfig)
} else {
if len(code) > 0 {
statedb.SetCode(receiver, code)
}
ret, leftOverGas, err = runtime.Call(receiver, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name)), &runtimeConfig)
ret, leftOverGas, err = runtime.Call(receiver, input, &runtimeConfig)
}
execTime := time.Since(tstart)