Crate envfury 

envfury

A collection of utilities for procedural reading of the process environment variables.

• https://crates.io/crates/envfury
• https://docs.rs/envfury

Structs

Error

Error from reading the env var.

Enums

MustError

Error while processing a required variable.

OrElseTryError

Error while processing a variable or executing a fallible else.

OrParseError

Error while processing a variable or parsing it’s default.

OrTryIntoError

Error while processing a variable or executing a TryInto::try_into.

ValueError

Error while processing the value.

Functions

maybe

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns None. Returns an error if the value is invalid Unicode or if the value could not be parsed.

must

Get the value of environment variable key and parse it into the type T if variable is set. Returns an error if the value is not set, is invalid Unicode or if the value could not be parsed.

or

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the default argument. Returns an error if the value is invalid Unicode or if the value could not be parsed.

or_default

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns a newly constructed value via the Default trait. Returns an error if the value is invalid Unicode or if the value could not be parsed.

or_else

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the result of calling the f argument. Returns an error if the value is invalid Unicode or if the value could not be parsed.

or_else_try

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the Ok-result of calling the f argument. Returns an error if the variable value is invalid Unicode, if the value could not be parsed, or if calling f resulted in an error.

or_into

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the result of calling .into() on the default argument. Returns an error if the value is invalid Unicode or if the value could not be parsed.

or_parse

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the result of calling the default and parsing the default argument. Returns an error if the variable value is invalid Unicode, if the value could not be parsed, or if the default could not be parsed.

or_try_into

Get the value of environment variable key and parse it into the type T if variable is set. If the variable is not set - returns the Ok-result of calling .try_into() on the default argument. Returns an error if the variable value is invalid Unicode, if the value could not be parsed, or if the default could not be parsed.