55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
/*
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Copyright 2018 the Velero contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package exec
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import (
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"bytes"
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"io"
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"os/exec"
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"github.com/pkg/errors"
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)
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// RunCommand runs a command and returns its stdout, stderr, and its returned
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// error (if any). If there are errors reading stdout or stderr, their return
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// value(s) will contain the error as a string.
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func RunCommand(cmd *exec.Cmd) (string, string, error) {
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stdoutBuf := new(bytes.Buffer)
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stderrBuf := new(bytes.Buffer)
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cmd.Stdout = stdoutBuf
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cmd.Stderr = stderrBuf
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runErr := cmd.Run()
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var stdout, stderr string
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if res, readErr := io.ReadAll(stdoutBuf); readErr != nil {
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stdout = errors.Wrap(readErr, "error reading command's stdout").Error()
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} else {
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stdout = string(res)
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}
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if res, readErr := io.ReadAll(stderrBuf); readErr != nil {
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stderr = errors.Wrap(readErr, "error reading command's stderr").Error()
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} else {
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stderr = string(res)
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}
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return stdout, stderr, runErr
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}
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