gel-dsn 0.2.3

Data-source name (DSN) parser for Gel and PostgreSQL databases.
Documentation 
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//! Parses DSNs for PostgreSQL database connections.
//!
//! There are some small differences with how `libpq` works:
//!
//!  - Unrecognized options are supported and collected in a map.
//!  - `database` is recognized as an alias for `dbname`
//!  - `[host1,host2]` is considered valid for psql
use gel_stream::SslVersionParseError;
use thiserror::Error;

mod host;
mod params;
mod passfile;
mod raw_params;
mod url;

pub use host::{Host, HostType, ToAddrsSyncVec};
pub use params::{ConnectionParameters, Ssl, SslParameters};
pub use passfile::{Password, PasswordWarning};
pub use raw_params::{RawConnectionParameters, SslMode};
pub use url::{parse_postgres_dsn, parse_postgres_dsn_env};

#[derive(Error, Debug, PartialEq, Eq)]
#[allow(clippy::enum_variant_names)]
pub enum ParseError {
    #[error(
        "Invalid DSN: scheme is expected to be either \"postgresql\" or \"postgres\", got {0}"
    )]
    InvalidScheme(String),

    #[error("Invalid value for parameter \"{0}\": \"{1}\"")]
    InvalidParameter(String, String),

    #[error("Invalid percent encoding")]
    InvalidPercentEncoding,

    #[error("Invalid port: \"{0}\"")]
    InvalidPort(String),

    #[error("Unexpected number of ports, must be either a single port or the same number as the host count: \"{0}\"")]
    InvalidPortCount(String),

    #[error("Invalid hostname: \"{0}\"")]
    InvalidHostname(String),

    #[error("Invalid query parameter: \"{0}\"")]
    InvalidQueryParameter(String),

    #[error("Invalid TLS version: \"{0}\"")]
    InvalidTLSVersion(#[from] SslVersionParseError),

    #[error("Could not determine the connection {0}")]
    MissingRequiredParameter(String),

    #[error("URL parse error: {0}")]
    UrlParseError(#[from] ::url::ParseError),
}