Crate from_path

Loading values from paths.

This crate provides the FromPath trait for types that can have values loaded from paths.

There is also the from_path convenience function for when the types can be inferred.

Example

Assuming there is some file named hello-world with the content Hello, world!, we first implement the trait and then load the content from the file:

use std::{fs::read_to_string, io::Error, path::Path};

use from_path::{FromPath, from_path};

struct Content {
    pub string: String,
}

impl Content {
    pub fn new(string: String) -> Self {
        Self { string }
    }
}

impl FromPath for Content {
    type Error = Error;

    fn from_path<P: AsRef<Path>>(path: P) -> Result<Self, Self::Error> {
        read_to_string(path).map(Content::new)
    }
}

let content: Content = from_path("hello-world").unwrap();

assert_eq!(content.string.trim(), "Hello, world!");

Traits

FromPath

Loading values from paths.

Functions

from_path

Loads the value of the given type from the given path.