50 lines
974 B
Go
50 lines
974 B
Go
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package lfs
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import (
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"bufio"
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"io"
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"os/exec"
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"strings"
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"github.com/rubyist/tracerx"
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)
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type wrappedCmd struct {
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Stdin io.WriteCloser
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Stdout *bufio.Reader
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Stderr *bufio.Reader
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*exec.Cmd
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}
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// startCommand starts up a command and creates a stdin pipe and a buffered
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// stdout & stderr pipes, wrapped in a wrappedCmd. The stdout buffer will be of stdoutBufSize
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// bytes.
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func startCommand(command string, args ...string) (*wrappedCmd, error) {
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cmd := exec.Command(command, args...)
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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return nil, err
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}
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stderr, err := cmd.StderrPipe()
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if err != nil {
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return nil, err
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}
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stdin, err := cmd.StdinPipe()
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if err != nil {
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return nil, err
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}
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tracerx.Printf("run_command: %s %s", command, strings.Join(args, " "))
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if err := cmd.Start(); err != nil {
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return nil, err
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}
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return &wrappedCmd{
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stdin,
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bufio.NewReaderSize(stdout, stdoutBufSize),
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bufio.NewReaderSize(stderr, stdoutBufSize),
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cmd,
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}, nil
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}
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