40 lines
617 B
Go
40 lines
617 B
Go
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package util
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import (
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"io"
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"os"
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"os/exec"
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)
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func Which(file string) (string, bool) {
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p, err := exec.LookPath(file)
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return p, err == nil
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}
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func CopyFile(dst, src string) error {
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srcD, err := os.Open(src)
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if err != nil {
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return err
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}
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defer func() {
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if srcD.Close() != nil {
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// unreachable
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panic("src file closed prematurely")
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}
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}()
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dstD, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
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if err != nil {
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return err
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}
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defer func() {
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if dstD.Close() != nil {
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// unreachable
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panic("dst file closed prematurely")
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}
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}()
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_, err = io.Copy(dstD, srcD)
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return err
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}
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