28 lines
668 B
Go
28 lines
668 B
Go
//go:build !windows
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// +build !windows
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package idtools // import "github.com/docker/docker/pkg/idtools"
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import (
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"fmt"
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"os/exec"
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"path/filepath"
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)
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func resolveBinary(binname string) (string, error) {
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binaryPath, err := exec.LookPath(binname)
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if err != nil {
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return "", err
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}
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resolvedPath, err := filepath.EvalSymlinks(binaryPath)
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if err != nil {
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return "", err
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}
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// only return no error if the final resolved binary basename
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// matches what was searched for
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if filepath.Base(resolvedPath) == binname {
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return resolvedPath, nil
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}
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return "", fmt.Errorf("Binary %q does not resolve to a binary of that name in $PATH (%q)", binname, resolvedPath)
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}
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