Enum EnvOr 

pub enum EnvOr {
    Value(String),
    Env(String),
}

A value that’s either a literal string or an env-var reference.

In TOML this deserializes from "literal" or { env = "VAR_NAME" } — the same shape drizzle-kit and the CLI accept for dbCredentials.url. Used anywhere a config value can be either inline or pulled from the environment at runtime.

Variants

Value(String)

Literal value taken from the config file.

Env(String)

Name of the environment variable to resolve.

Implementations

impl EnvOr

pub fn resolve(&self) -> Result<String, EnvOrError>

Resolve to a concrete string, reading the environment if needed.

Errors

Returns EnvOrError::NotPresent if this is an EnvOr::Env pointing to a variable that is not set, or EnvOrError::NotUnicode if the variable is set but contains invalid UTF-8.

pub fn resolve_optional(&self) -> Result<Option<String>, EnvOrError>

Resolve to an optional value (returns None when an Env var is unset).

Errors

Returns EnvOrError::NotUnicode if the env var is set but contains invalid UTF-8. Missing env vars resolve to Ok(None).

Trait Implementations

impl Clone for EnvOr

fn clone(&self) -> EnvOr

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EnvOr

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for EnvOr

fn eq(&self, other: &EnvOr) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for EnvOr

impl StructuralPartialEq for EnvOr