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59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
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//
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// This software (Documize Community Edition) is licensed under
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// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
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//
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// You can operate outside the AGPL restrictions by purchasing
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// Documize Enterprise Edition and obtaining a commercial license
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// by contacting <sales@documize.com>.
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//
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// https://documize.com
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package osutil
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import (
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"bytes"
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"errors"
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"fmt"
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"os/exec"
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"time"
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)
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var errTimeout = errors.New("conversion timelimit exceeded")
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// CommandWithTimeout runs a command but stops it if it does not finish within the timout above.
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func CommandWithTimeout(command *exec.Cmd, timeout time.Duration) ([]byte, error) {
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var output bytes.Buffer
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//fmt.Println("DEBUG CommandWithTimeout: %v", command.Args)
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command.Stdout = &output
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command.Stderr = &output
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if err := command.Start(); err != nil {
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return nil, err
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}
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done := make(chan error, 1)
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defer close(done)
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go func() {
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done <- command.Wait()
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}()
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select {
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case <-time.After(timeout):
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if err := command.Process.Kill(); err != nil {
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fmt.Printf("failed to kill: %s", err.Error())
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}
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<-done // prevent memory leak
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//fmt.Println("DEBUG timeout")
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return nil, errTimeout
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case err := <-done:
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if err != nil {
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//fmt.Println("DEBUG error return")
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return output.Bytes(), err
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}
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if !command.ProcessState.Success() {
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err = errors.New(string(output.Bytes()))
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//fmt.Println("DEBUG not successful")
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return nil, err
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}
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//fmt.Println("DEBUG successful return")
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return output.Bytes(), nil
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}
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}
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