go_study/fabric-main/internal/ledgerutil/jsonrw/json_test_utils.go

46 lines
728 B
Go

/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package jsonrw
import (
"bytes"
"io"
"os"
"path/filepath"
)
func OutputFileToString(f string, path string) (string, error) {
fpath := filepath.Join(path, f)
exists, err := outputFileExists(fpath)
if err != nil {
return "", err
}
if exists {
b, err := os.ReadFile(fpath)
if err != nil {
return "", err
}
out, err := io.ReadAll(bytes.NewReader(b))
if err != nil {
return "", err
}
return string(out), nil
}
return "null", nil
}
func outputFileExists(f string) (bool, error) {
_, err := os.Stat(f)
if err != nil {
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
return true, nil
}