mirror of https://github.com/spf13/viper.git
Added BindPFlags function which binds all flags in a given flag set to the pflags register
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parent
9a0a6692b7
commit
24dd877ad7
15
viper.go
15
viper.go
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@ -418,6 +418,21 @@ func (v *Viper) Marshal(rawVal interface{}) error {
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return nil
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}
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// Bind a full flag set to the configuration, using each flag's long
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// name as the config key.
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func BindPFlags(flags *pflag.FlagSet) (err error) { return v.BindPFlags(flags) }
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func (v *Viper) BindPFlags(flags *pflag.FlagSet) (err error) {
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flags.VisitAll(func(flag *pflag.Flag) {
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if err != nil {
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// an error has been encountered in one of the previous flags
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return
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}
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err = v.BindPFlag(flag.Name, flag)
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})
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return
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}
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// Bind a specific key to a flag (as used by cobra)
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// Example(where serverCmd is a Cobra instance):
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//
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@ -333,6 +333,41 @@ func TestMarshal(t *testing.T) {
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assert.Equal(t, &C, &config{Name: "Steve", Port: 1234})
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}
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func TestBindPFlags(t *testing.T) {
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flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
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var testValues = map[string]*string{
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"host": nil,
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"port": nil,
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"endpoint": nil,
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}
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var mutatedTestValues = map[string]string{
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"host": "localhost",
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"port": "6060",
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"endpoint": "/public",
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}
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for name, _ := range testValues {
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testValues[name] = flagSet.String(name, "", "test")
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}
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err := BindPFlags(flagSet)
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if err != nil {
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t.Fatalf("error binding flag set, %v", err)
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}
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flagSet.VisitAll(func(flag *pflag.Flag) {
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flag.Value.Set(mutatedTestValues[flag.Name])
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flag.Changed = true
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})
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for name, expected := range mutatedTestValues {
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assert.Equal(t, Get(name), expected)
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}
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}
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func TestBindPFlag(t *testing.T) {
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var testString = "testing"
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var testValue = newStringValue(testString, &testString)
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