config

Documentation

Index

• type C
  • func NewC(l *logrus.Logger) *C
  • func (c *C) CatchHUP(ctx context.Context)
  • func (c *C) Get(k string) interface{}
  • func (c *C) GetBool(k string, d bool) bool
  • func (c *C) GetDuration(k string, d time.Duration) time.Duration
  • func (c *C) GetInt(k string, d int) int
  • func (c *C) GetMap(k string, d map[interface{}]interface{}) map[interface{}]interface{}
  • func (c *C) GetString(k, d string) string
  • func (c *C) GetStringSlice(k string, d []string) []string
  • func (c *C) HasChanged(k string) bool
  • func (c *C) IsSet(k string) bool
  • func (c *C) Load(path string) error
  • func (c *C) LoadString(raw string) error
  • func (c *C) RegisterReloadCallback(f func(*C))
  • func (c *C) ReloadConfig()

Types

type C

type C struct {
	Settings map[interface{}]interface{}
	// contains filtered or unexported fields
}

func NewC

func NewC(l *logrus.Logger) *C

func (*C) CatchHUP

func (c *C) CatchHUP(ctx context.Context)

CatchHUP will listen for the HUP signal in a go routine and reload all configs found in the original path provided to Load. The old settings are shallow copied for change detection after the reload.

func (*C) Get

func (c *C) Get(k string) interface{}

func (*C) GetBool

func (c *C) GetBool(k string, d bool) bool

GetBool will get the bool for k or return the default d if not found or invalid

func (*C) GetDuration

func (c *C) GetDuration(k string, d time.Duration) time.Duration

GetDuration will get the duration for k or return the default d if not found or invalid

func (*C) GetInt

func (c *C) GetInt(k string, d int) int

GetInt will get the int for k or return the default d if not found or invalid

func (*C) GetMap

func (c *C) GetMap(k string, d map[interface{}]interface{}) map[interface{}]interface{}

GetMap will get the map for k or return the default d if not found or invalid

func (*C) GetString

func (c *C) GetString(k, d string) string

GetString will get the string for k or return the default d if not found or invalid

func (*C) GetStringSlice

func (c *C) GetStringSlice(k string, d []string) []string

GetStringSlice will get the slice of strings for k or return the default d if not found or invalid

func (*C) HasChanged

func (c *C) HasChanged(k string) bool

HasChanged checks if the underlying structure of the provided key has changed after a config reload. The value of k in both the old and new settings will be serialized, the result of the string comparison is returned. If k is an empty string the entire config is tested. It's important to note that this is very rudimentary and susceptible to configuration ordering issues indicating there is change when there actually wasn't any.

func (*C) IsSet

func (c *C) IsSet(k string) bool

func (*C) Load

func (c *C) Load(path string) error

Load will find all yaml files within path and load them in lexical order

func (*C) LoadString

func (c *C) LoadString(raw string) error

func (*C) RegisterReloadCallback

func (c *C) RegisterReloadCallback(f func(*C))

RegisterReloadCallback stores a function to be called when a config reload is triggered. The functions registered here should decide if they need to make a change to the current process before making the change. HasChanged can be used to help decide if a change is necessary. These functions should return quickly or spawn their own go routine if they will take a while

func (*C) ReloadConfig

func (c *C) ReloadConfig()