btpeer 0.11.0

Simple CLI tool and library to get peers from TCP/HTTP and UDP BitTorrent trackers
Documentation 
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use anyhow::{Result, bail};
use std::str::FromStr;
use url::Url;

pub struct Scrape(pub Url);

impl Scrape {
    /// Build new scrape request for given info-hash bytes vector
    /// * return full scrape on `id20` array is None
    pub fn new(announce_url: &str, id20: Option<&[[u8; 20]]>) -> Result<Self> {
        if id20.is_some_and(|b| b.is_empty()) {
            bail!(
                "info-hash value should not be empty; tip: use None to build the Full scrape query"
            )
        }

        let query = id20.map(|value| {
            value
                .iter()
                .map(|b| format!("info_hash={}", super::url_encode_bytes(b)))
                .collect::<Vec<String>>()
                .join("&")
        });

        let mut url = Url::from_str(announce_url)?;

        url.set_path("scrape");
        url.set_query(query.as_deref());

        Ok(Self(url))
    }
}

impl std::fmt::Display for Scrape {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.0)
    }
}