Enum EnvDecoder 

pub enum EnvDecoder {
    Csv,
    PathList,
    KeyValueMap,
    Whitespace,
}

Built-in decoders for structured environment variable values.

These decoders are intended for operational formats that are common in deployments but inconvenient to express as JSON.

Examples

use tier::{ConfigMetadata, EnvDecoder, FieldMetadata};

let mut metadata = ConfigMetadata::new();
metadata.push(FieldMetadata::new("no_proxy").env_decoder(EnvDecoder::Csv));
metadata.push(FieldMetadata::new("labels").env_decoder(EnvDecoder::KeyValueMap));

assert_eq!(metadata.fields().len(), 2);

Variants

Csv

Comma-separated values such as a,b,c.

PathList

Platform-native path list syntax such as PATH.

KeyValueMap

Comma-separated key=value pairs such as a=1,b=2.

Whitespace

Whitespace-separated values such as a b c.

Trait Implementations

impl Clone for EnvDecoder

fn clone(&self) -> EnvDecoder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnvDecoder

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EnvDecoder

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for EnvDecoder

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

Formats the value using the given formatter.

impl PartialEq for EnvDecoder

fn eq(&self, other: &EnvDecoder) -> 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 Serialize for EnvDecoder

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for EnvDecoder

impl Eq for EnvDecoder

impl StructuralPartialEq for EnvDecoder