flag

func IncludeUnset ¶

func IncludeUnset(b bool) source.Option

IncludeUnset toggles the loading of unset flags and their respective default values. Default behavior is to ignore any unset flags.

func NewSource ¶

func NewSource(opts ...source.Option) source.Source

NewSource returns a config source for integrating parsed flags. Hyphens are delimiters for nesting, and all keys are lowercased.

Example:

dbhost := flag.String("database-host", "localhost", "the db host name")

{
    "database": {
        "host": "localhost"
    }
}