58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package viper
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import "github.com/spf13/pflag"
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// FlagValueSet is an interface that users can implement
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// to bind a set of flags to viper.
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type FlagValueSet interface {
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VisitAll(fn func(FlagValue))
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}
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// FlagValue is an interface that users can implement
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// to bind different flags to viper.
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type FlagValue interface {
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HasChanged() bool
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Name() string
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ValueString() string
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ValueType() string
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}
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// pflagValueSet is a wrapper around *pflag.ValueSet
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// that implements FlagValueSet.
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type pflagValueSet struct {
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flags *pflag.FlagSet
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}
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// VisitAll iterates over all *pflag.Flag inside the *pflag.FlagSet.
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func (p pflagValueSet) VisitAll(fn func(flag FlagValue)) {
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p.flags.VisitAll(func(flag *pflag.Flag) {
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fn(pflagValue{flag})
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})
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}
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// pflagValue is a wrapper aroung *pflag.flag
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// that implements FlagValue
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type pflagValue struct {
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flag *pflag.Flag
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}
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// HasChanged returns whether the flag has changes or not.
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func (p pflagValue) HasChanged() bool {
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return p.flag.Changed
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}
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// Name returns the name of the flag.
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func (p pflagValue) Name() string {
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return p.flag.Name
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}
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// ValueString returns the value of the flag as a string.
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func (p pflagValue) ValueString() string {
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return p.flag.Value.String()
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}
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// ValueType returns the type of the flag as a string.
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func (p pflagValue) ValueType() string {
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return p.flag.Value.Type()
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}
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