gh-ost/go/os/process.go
Tim Vaillancourt 47d49c6b92
Add go mod (#935)
* Add a go.mod file

* run go mod vendor again

* Move to a well-supported ini file reader

* Remove GO111MODULE=off

* Use go 1.16

* Rename github.com/outbrain/golib -> github.com/openark/golib

* Remove *.go-e files

* Fix for `strconv.ParseInt: parsing "": invalid syntax` error

* Add test for '[osc]' section

Co-authored-by: Nate Wernimont <nate.wernimont@workiva.com>
2021-06-24 20:19:37 +02:00

66 lines
1.8 KiB
Go

/*
Copyright 2014 Outbrain Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package os
import (
"github.com/openark/golib/log"
"io/ioutil"
"os"
"os/exec"
)
func execCmd(commandText string, arguments ...string) (*exec.Cmd, string, error) {
commandBytes := []byte(commandText)
tmpFile, err := ioutil.TempFile("", "gh-ost-process-cmd-")
if err != nil {
return nil, "", log.Errore(err)
}
ioutil.WriteFile(tmpFile.Name(), commandBytes, 0644)
log.Debugf("execCmd: %s", commandText)
shellArguments := append([]string{}, tmpFile.Name())
shellArguments = append(shellArguments, arguments...)
log.Debugf("%+v", shellArguments)
return exec.Command("bash", shellArguments...), tmpFile.Name(), nil
}
// CommandRun executes a command
func CommandRun(commandText string, arguments ...string) error {
cmd, tmpFileName, err := execCmd(commandText, arguments...)
defer os.Remove(tmpFileName)
if err != nil {
return log.Errore(err)
}
err = cmd.Run()
return log.Errore(err)
}
// RunCommandWithOutput executes a command and return output bytes
func RunCommandWithOutput(commandText string) ([]byte, error) {
cmd, tmpFileName, err := execCmd(commandText)
defer os.Remove(tmpFileName)
if err != nil {
return nil, log.Errore(err)
}
outputBytes, err := cmd.Output()
if err != nil {
return nil, log.Errore(err)
}
return outputBytes, nil
}