env

func Get ¶

func Get(names ...string) (map[string]string, error)

Get environment variables

func GetOrDefaultBool ¶

func GetOrDefaultBool(envVar string, defaultValue bool) bool

GetOrDefaultBool returns the given environment variable value as a boolean. Returns the default if the envvar cannot be coopered to a boolean, or is not found.

func GetOrDefaultInt ¶

func GetOrDefaultInt(envVar string, defaultValue int) int

GetOrDefaultInt returns the given environment variable value as an integer. Returns the default if the envvar cannot be coopered to an int, or is not found.

func GetOrDefaultSecond ¶

func GetOrDefaultSecond(envVar string, defaultValue time.Duration) time.Duration

GetOrDefaultSecond returns the given environment variable value as an time.Duration (second). Returns the default if the envvar cannot be coopered to an int, or is not found.

func GetOrDefaultString ¶

func GetOrDefaultString(envVar string, defaultValue string) string

GetOrDefaultString returns the given environment variable value as a string. Returns the default if the envvar cannot be find.

func GetOrFile ¶

func GetOrFile(envVar string) string

GetOrFile Attempts to resolve 'key' as an environment variable. Failing that, it will check to see if '<key>_FILE' exists. If so, it will attempt to read from the referenced file to populate a value.

func GetWithFallback ¶

func GetWithFallback(groups ...[]string) (map[string]string, error)

GetWithFallback Get environment variable values The first name in each group is use as key in the result map

// LEGO_ONE="ONE"
// LEGO_TWO="TWO"
env.GetWithFallback([]string{"LEGO_ONE", "LEGO_TWO"})
// => "LEGO_ONE" = "ONE"

----

// LEGO_ONE=""
// LEGO_TWO="TWO"
env.GetWithFallback([]string{"LEGO_ONE", "LEGO_TWO"})
// => "LEGO_ONE" = "TWO"

----

// LEGO_ONE=""
// LEGO_TWO=""
env.GetWithFallback([]string{"LEGO_ONE", "LEGO_TWO"})
// => error