fn parse_url()

in src/aws/builder.rs [642:685]
41 lines of code
4 McCabe index (conditional complexity)

    fn parse_url(&mut self, url: &str) -> Result<()> {
        let parsed = Url::parse(url).map_err(|source| {
            let url = url.into();
            Error::UnableToParseUrl { url, source }
        })?;

        let host = parsed
            .host_str()
            .ok_or_else(|| Error::UrlNotRecognised { url: url.into() })?;

        match parsed.scheme() {
            "s3" | "s3a" => self.bucket_name = Some(host.to_string()),
            "https" => match host.splitn(4, '.').collect_tuple() {
                Some(("s3", region, "amazonaws", "com")) => {
                    self.region = Some(region.to_string());
                    let bucket = parsed.path_segments().into_iter().flatten().next();
                    if let Some(bucket) = bucket {
                        self.bucket_name = Some(bucket.into());
                    }
                }
                Some((bucket, "s3", region, "amazonaws.com")) => {
                    self.bucket_name = Some(bucket.to_string());
                    self.region = Some(region.to_string());
                    self.virtual_hosted_style_request = true.into();
                }
                Some((account, "r2", "cloudflarestorage", "com")) => {
                    self.region = Some("auto".to_string());
                    let endpoint = format!("https://{account}.r2.cloudflarestorage.com");
                    self.endpoint = Some(endpoint);

                    let bucket = parsed.path_segments().into_iter().flatten().next();
                    if let Some(bucket) = bucket {
                        self.bucket_name = Some(bucket.into());
                    }
                }
                _ => return Err(Error::UrlNotRecognised { url: url.into() }.into()),
            },
            scheme => {
                let scheme = scheme.into();
                return Err(Error::UnknownUrlScheme { scheme }.into());
            }
        };
        Ok(())
    }