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package cli
import (
"fmt"
"path"
"strings"
"github.com/spf13/pflag"
)
var _ pflag.Value = (*pathPrefixValue)(nil)
type pathPrefixValue struct {
p *string
name string
}
func registerPathPrefixFlag(flags *pflag.FlagSet, p *string, name string, val string, usage string) {
*p = val
flags.Var(&pathPrefixValue{p, name}, name, usage)
}
func (v *pathPrefixValue) Type() string { return "string" }
func (v *pathPrefixValue) String() string { return *v.p }
func (v *pathPrefixValue) Set(raw string) error {
trimmed := strings.Trim(raw, "/")
if trimmed == "" {
*v.p = ""
return nil
}
cleaned := path.Clean(trimmed)
if cleaned == "." {
*v.p = ""
return nil
}
if cleaned == ".." || strings.HasPrefix(cleaned, "../") {
return usageError{fmt.Sprintf("%s %q escapes", v.name, raw)}
}
*v.p = cleaned
return nil
}
func prefixedPath(prefix string, filePath string) string {
if prefix == "" {
return filePath
}
return path.Join(prefix, filePath)
}
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