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feat: add function to write config to writer

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Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
This commit is contained in:
Mark Sagi-Kazar 2024-07-20 15:49:40 +02:00 committed by Márk Sági-Kazár
parent 3268cbdcf4
commit ae564f05cb
1 changed files with 15 additions and 2 deletions
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17
viper.go
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@ -1591,6 +1591,19 @@ func (v *Viper) WriteConfigAs(filename string) error {
return v.writeConfig(filename, true) return v.writeConfig(filename, true)
} }
// WriteConfigTo writes current configuration to an [io.Writer].
func WriteConfigTo(w io.Writer) error { return v.WriteConfigTo(w) }
func (v *Viper) WriteConfigTo(w io.Writer) error {
format := strings.ToLower(v.getConfigType())
if !slices.Contains(SupportedExts, format) {
return UnsupportedConfigError(format)
}
return v.marshalWriter(w, format)
}
// SafeWriteConfigAs writes current configuration to a given filename if it does not exist. // SafeWriteConfigAs writes current configuration to a given filename if it does not exist.
func SafeWriteConfigAs(filename string) error { return v.SafeWriteConfigAs(filename) } func SafeWriteConfigAs(filename string) error { return v.SafeWriteConfigAs(filename) }
@ -1665,7 +1678,7 @@ func (v *Viper) unmarshalReader(in io.Reader, c map[string]any) error {
} }
// Marshal a map into Writer. // Marshal a map into Writer.
func (v *Viper) marshalWriter(f afero.File, configType string) error { func (v *Viper) marshalWriter(w io.Writer, configType string) error {
c := v.AllSettings() c := v.AllSettings()
encoder, err := v.encoderRegistry.Encoder(configType) encoder, err := v.encoderRegistry.Encoder(configType)
@ -1678,7 +1691,7 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
return ConfigMarshalError{err} return ConfigMarshalError{err}
} }
_, err = f.WriteString(string(b)) _, err = w.Write(b)
if err != nil { if err != nil {
return ConfigMarshalError{err} return ConfigMarshalError{err}
} }