provider

func Load ¶

func Load(source string) (map[string]string, error)

Load loads a configuration source and returns its content as a flattened map[string]string.

The source string format is:

[optional:]<provider>:<path>
<path> (defaults to file provider)

Examples:

• "file:./config.yaml" // file provider, required
• "optional:file:./config.yaml" // file provider, optional
• "./config.yaml" // shorthand for file:./config.yaml
• "etcd:localhost:2379/config" // custom provider
• "optional:etcd:localhost:2379/config" // custom provider, optional

When optional is true and the source does not exist, Load returns (nil, nil).

func LoadFile ¶

func LoadFile(optional bool, source string) (map[string]string, error)

LoadFile loads a configuration file and returns its content as a flattened map[string]string. If the file does not exist and optional is true, it returns nil without error.

func Register ¶

func Register(name string, p Provider)

Register registers a Provider for a specific configuration source type. Must be called in init functions only.