rustyroad 1.8.8

Rusty Road is a framework written in Rust that is based on Ruby on Rails. It is designed to provide the familiar conventions and ease of use of Ruby on Rails, while also taking advantage of the performance and efficiency of Rust.
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//! Reading connection settings from a RustyRoad config file's `[database]` section.

use super::config::KEYS;
use toml::Value;

/// Returns the settings ordered as `KEYS`, naming the first one missing.
///
/// `database_port` may be a string or an integer: the generated `rustyroad.toml` writes a
/// string, but a hand-edited file commonly uses a number.
pub(super) fn values(contents: &str, source: &str) -> Result<Vec<String>, String> {
    let document: Value =
        toml::from_str(contents).map_err(|error| format!("failed to parse {source}: {error}"))?;
    let database = document
        .get("database")
        .ok_or_else(|| format!("{source} has no [database] section"))?;

    KEYS.iter()
        .map(|key| match database.get(format!("database_{key}")) {
            Some(Value::String(value)) => Ok(value.clone()),
            Some(Value::Integer(value)) => Ok(value.to_string()),
            _ => Err(format!("{source} is missing [database].database_{key}")),
        })
        .collect()
}