mirror of
https://github.com/strongdm/comply
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49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package goptions
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// A MutexGroup holds a set of flags which are mutually exclusive and cannot
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// be specified at the same time.
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type MutexGroup []*Flag
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// IsObligatory returns true if exactly one of the flags in the MutexGroup has
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// to be specified
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func (mg MutexGroup) IsObligatory() bool {
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for _, flag := range mg {
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if flag.Obligatory {
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return true
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}
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}
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return false
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}
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func (mg MutexGroup) WasSpecified() bool {
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for _, flag := range mg {
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if flag.WasSpecified {
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return true
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}
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}
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return false
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}
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// IsValid checks if the flags in the MutexGroup describe a valid state.
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// I.e. At most one has been specified or – if it is an obligatory MutexGroup –
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// exactly one has been specified.
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func (mg MutexGroup) IsValid() bool {
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c := 0
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for _, flag := range mg {
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if flag.WasSpecified {
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c++
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}
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}
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return c <= 1 && (!mg.IsObligatory() || c == 1)
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}
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// Names is a convenience function to return the array of names of the flags
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// in the MutexGroup.
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func (mg MutexGroup) Names() []string {
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r := make([]string, len(mg))
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for i, flag := range mg {
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r[i] = flag.Name()
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}
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return r
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}
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