Crate rwconfig 

rwconfig — Read/Write Config with Dirty Tracking

A lightweight config file reader/writer that tracks modifications via get/set and flushes all changes in one go with save(). Like getters/setters with dirty-tracking.

Features

• Dot-path access — Use paths like "server.port" or "a.b.c" for nested values
• Dirty tracking — Every set() marks the config dirty; save() writes only when needed
• Multi-format — JSON, JSON5, JSONC, YAML, TOML; format is inferred from file extension

Example

let mut cfg = RWConfig::from_file("config.json")?;
let port = cfg.get("server.port").and_then(|v| v.as_i64()).unwrap_or(8080);
cfg.set("server.port", json!(9090))?;
cfg.save()?;

Structs

RWConfig

Main config struct: load from file, get/set by path, save when dirty. Config struct: loads from file, tracks changes, persists on save().

Enums

ConfigFormat

Config format enum (Json, Yaml, Toml). Supported config format (detected from file extension).

Error

Unified error type (Io, Parse, Path variants). Errors that can occur when reading, writing, or modifying config.

Value

Re-export for convenience when working with config values. Represents any valid JSON value.

Functions

get_path

Raw path operations on serde_json::Value. Get a value by dot path (e.g. "info.a", "a.b.c").

set_path

Raw path operations on serde_json::Value. Set a value by dot path. Creates parent keys as objects if needed.