Crate dotenv 

Loads environment variables from .env files.

Quick start

dotenv::load();

Call load near the start of your program to load a .env file from the current working directory.

Precedence

• Existing environment variables are never overwritten. A variable already set in the environment takes priority over anything in .env.
• First declaration wins in .env. If the same key appears multiple times, only the first is used.

Supported syntax

HELLO=world
HELLO="world"
HELLO='world'
HELLO='"nested"'
HELLO=world  # inline comment
# full-line comment

Key names

Keys may only contain ASCII letters, digits, _, ., and -.

Limitations

• Multi-line values are not supported.
• Variable substitution (e.g. ${FOO}) is not supported.
• Export syntax (export KEY=value) is not supported.

Structs

ParseError

A parse error with the line number and kind.

Enums

Error

Errors that can occur when loading a .env file.

ParseErrorKind

The specific kind of parse error.

Functions

load

Loads the .env file from the current working directory.