441c7f2b0f
evm block-builder (a.k.a b11r) is a utility to help assemble blocks, for use during the test-creation process.
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
// Copyright 2021 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package t8ntool
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import (
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"encoding/json"
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"fmt"
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"os"
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"gopkg.in/urfave/cli.v1"
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)
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// readFile reads the json-data in the provided path and marshals into dest.
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func readFile(path, desc string, dest interface{}) error {
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inFile, err := os.Open(path)
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if err != nil {
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return NewError(ErrorIO, fmt.Errorf("failed reading %s file: %v", desc, err))
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}
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defer inFile.Close()
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decoder := json.NewDecoder(inFile)
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if err := decoder.Decode(dest); err != nil {
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return NewError(ErrorJson, fmt.Errorf("failed unmarshaling %s file: %v", desc, err))
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}
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return nil
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}
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// createBasedir makes sure the basedir exists, if user specified one.
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func createBasedir(ctx *cli.Context) (string, error) {
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baseDir := ""
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if ctx.IsSet(OutputBasedir.Name) {
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if base := ctx.String(OutputBasedir.Name); len(base) > 0 {
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err := os.MkdirAll(base, 0755) // //rw-r--r--
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if err != nil {
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return "", err
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}
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baseDir = base
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}
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}
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return baseDir, nil
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}
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