27 lines
683 B
Go
27 lines
683 B
Go
// +build !windows
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package dockerfile
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import (
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"fmt"
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"os"
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"path/filepath"
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)
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// normaliseWorkdir normalises a user requested working directory in a
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// platform sematically consistent way.
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func normaliseWorkdir(current string, requested string) (string, error) {
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if requested == "" {
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return "", fmt.Errorf("cannot normalise nothing")
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}
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current = filepath.FromSlash(current)
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requested = filepath.FromSlash(requested)
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if !filepath.IsAbs(requested) {
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return filepath.Join(string(os.PathSeparator), current, requested), nil
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}
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return requested, nil
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}
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func errNotJSON(command, _ string) error {
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return fmt.Errorf("%s requires the arguments to be in JSON form", command)
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}
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