elba 0.3.0

elba is a package manager for Idris
Documentation 
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//! Package repositories that can be published/yanked to.
//! elba reads from indices and writes to repos.

use crate::{package::Name, util::errors::Res};
use failure::{format_err, Error, ResultExt};
use reqwest::Client;
use semver::Version;
use serde::{de, ser};
use std::{fmt, fs::File, str::FromStr, time::Duration};
use url::Url;

#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Registry {
    pub url: Url,
}

#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct RegistryMeta {
    pub api: u16,
}

impl fmt::Display for Registry {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.url)
    }
}

impl FromStr for Registry {
    type Err = Error;

    fn from_str(url: &str) -> Result<Self, Self::Err> {
        let url = Url::parse(url).context(format_err!("invalid registry url"))?;
        if url.scheme() != "http" && url.scheme() != "https" {
            return Err(format_err!("invalid scheme for registry url"))?;
        }
        Ok(Registry { url })
    }
}

impl<'de> de::Deserialize<'de> for Registry {
    fn deserialize<D: de::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        let s = String::deserialize(deserializer)?;
        FromStr::from_str(&s).map_err(de::Error::custom)
    }
}

impl ser::Serialize for Registry {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: ser::Serializer,
    {
        serializer.serialize_str(&self.to_string())
    }
}

impl Registry {
    pub fn new(url: Url) -> Self {
        Registry { url }
    }

    pub fn meta(&self) -> Res<RegistryMeta> {
        // endpoint: /api/registry_metadata
        unimplemented!()
    }

    pub fn yank(&self, name: &Name, version: &Version, token: &str, yank: bool) -> Res<()> {
        let client = Client::builder().timeout(Duration::from_secs(10)).build()?;
        let mut resp = client
            .patch(
                self.url
                    .join(&format!(
                        "api/v1/packages/{}/{}/{}/yank",
                        name.group(),
                        name.name(),
                        &version.to_string()
                    ))
                    .unwrap(),
            )
            .query(&[("yanked", yank.to_string()), ("token", token.to_string())])
            .send()?;

        if resp.status().is_success() {
            Ok(())
        } else {
            Err(format_err!("{}", resp.text()?))?
        }
    }

    pub fn publish(&self, tar: File, name: &Name, version: &Version, token: &str) -> Res<()> {
        let client = Client::builder().timeout(Duration::from_secs(10)).build()?;
        let mut resp = client
            .put(
                self.url
                    .join(&format!(
                        "api/v1/packages/{}/{}/{}/publish",
                        name.group(),
                        name.name(),
                        &version.to_string()
                    ))
                    .unwrap(),
            )
            .query(&[("token", token)])
            .body(tar)
            .send()?;

        if resp.status().is_success() {
            Ok(())
        } else {
            Err(format_err!("{}", resp.text()?))?
        }
    }

    pub fn retrieve_url(&self, name: &Name, version: &Version) -> Url {
        self.url
            .join(&format!(
                "api/v1/packages/{}/{}/{}/download",
                name.group(),
                name.name(),
                &version.to_string()
            ))
            .unwrap()
    }
}