Crate rattler_repodata_gateway

rattler_repodata_gateway is a crate that provides functionality to interact with Conda repodata. It currently provides functionality to download and cache repodata.json files through the fetch::fetch_repo_data function.

In the future this crate will also provide more high-level functionality to query information about specific packages from different sources.

Install

Add the following to your Cargo.toml:

[dependencies]
rattler_repodata_gateway = "0.2.0"

or run

cargo add rattler_repodata_gateway

Examples

Below is a basic example that shows how to retrieve and cache the repodata for a conda channel using the fetch::fetch_repo_data function:

use std::{path::PathBuf, default::Default};
use reqwest::Client;
use reqwest_middleware::ClientWithMiddleware;
use url::Url;
use rattler_repodata_gateway::fetch;

#[tokio::main]
async fn main() {
    let repodata_url = Url::parse("https://conda.anaconda.org/conda-forge/osx-64/").unwrap();
    let client = ClientWithMiddleware::from(Client::new());
    let cache = PathBuf::from("./cache");

    let result = fetch::fetch_repo_data(
        repodata_url,
        client,
        cache,
        fetch::FetchRepoDataOptions { ..Default::default() },
        None,
    ).await;

    let result = match result {
        Err(err) => {
            panic!("{:?}", err);
        }
        Ok(result) => result
    };

    println!("{:?}", result.cache_state);
    println!("{:?}", result.cache_result);
    println!("{:?}", result.lock_file);
    println!("{:?}", result.repo_data_json_path);
}

Modules

• fetch
  This module provides functionality to download and cache repodata.json from a remote location.

Traits

• Reporter
  A trait that enables being notified of download progress.