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use log::{debug, info};
use reqwest::{StatusCode, Url};
use serde::de::DeserializeOwned;
use serde_derive::Deserialize;
use failure::Fail;
#[derive(Fail, Debug)]
pub enum Error {
#[fail(display = "{}", _0)]
Http(reqwest::Error),
#[fail(display = "{}", _0)]
Url(url::ParseError),
#[fail(display = "Not found")]
NotFound,
}
impl From<reqwest::Error> for Error {
fn from(e: reqwest::Error) -> Self {
Error::Http(e)
}
}
impl From<url::ParseError> for Error {
fn from(e: url::ParseError) -> Self {
Error::Url(e)
}
}
pub struct SyncClient {
client: reqwest::Client,
base_url: Url,
}
#[derive(Deserialize, Debug)]
pub struct GemDevDeps {
pub name: String,
pub requirements: String,
}
#[derive(Deserialize, Debug)]
pub struct GemRunDeps {
pub name: String,
pub requirements: String,
}
#[derive(Deserialize, Debug)]
pub struct GemDeps {
pub development: Option<Vec<GemDevDeps>>,
pub runtime: Option<Vec<GemRunDeps>>,
}
#[derive(Deserialize, Debug)]
pub struct GemInfo {
pub name: String,
pub authors: String,
pub version: String,
pub info: Option<String>,
pub licenses: Option<Vec<String>>,
pub project_uri: String,
pub gem_uri: String,
pub homepage_uri: Option<String>,
pub wiki_uri: Option<String>,
pub documentation_uri: Option<String>,
pub dependencies: GemDeps,
pub sha: String,
}
impl SyncClient {
pub fn new() -> Self {
SyncClient {
client: reqwest::Client::new(),
base_url: Url::parse("https://rubygems.org/api/v1/gems/").unwrap(),
}
}
fn get<T: DeserializeOwned>(&self, url: Url) -> Result<T, Error> {
info!("GET {}", url);
let mut res = {
let res = self.client.get(url).send()?;
if res.status() == StatusCode::NOT_FOUND {
return Err(Error::NotFound);
}
res.error_for_status()?
};
let data: T = res.json()?;
Ok(data)
}
pub fn gem_info(&self, name: &str) -> Result<GemInfo, Error> {
let url = self.base_url.join(&format!("{}.json", &name))?;
let data: GemInfo = self.get(url)?;
debug!("Received data from API: {:?}", data);
let deserialized_gemdeps = GemDeps {
development: data.dependencies.development,
runtime: data.dependencies.runtime,
};
let deserialized_geminfo = GemInfo {
name: data.name,
version: data.version,
authors: data.authors,
info: data.info,
licenses: data.licenses,
project_uri: data.project_uri,
gem_uri: data.gem_uri,
homepage_uri: data.homepage_uri,
wiki_uri: data.wiki_uri,
documentation_uri: data.documentation_uri,
dependencies: deserialized_gemdeps,
sha: data.sha,
};
debug!("GemInfo: {:?}", deserialized_geminfo);
Ok(deserialized_geminfo)
}
}
#[cfg(test)]
mod test {
use crate::SyncClient;
#[test]
fn test_name() {
let client = SyncClient::new();
let gem_info = client.gem_info("ruby-json").unwrap();
assert!(gem_info.name.len() > 0);
}
#[test]
fn test_deps() {
let client = SyncClient::new();
let gem_info = client.gem_info("ffi").unwrap();
let gem_info_deps = gem_info.dependencies.development.unwrap();
assert!(gem_info_deps.len() > 0);
}
#[test]
fn test_license() {
let client = SyncClient::new();
let gem_info = client.gem_info("newrelic_rpm").unwrap();
println!("{:?}", gem_info.licenses)
}
}