huber 1.0.11

Huber, simplify GitHub package management
Documentation 
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use anyhow::anyhow;
use log::warn;
use semver::{Version, VersionReq};

/// Parse package name and version
///
/// # Examples
///
/// ```
/// use huber::parse::parse_pkg_name_optional_semver;
/// let (name, version) = parse_pkg_name_optional_semver("package-name@1.2.3").unwrap();
/// assert_eq!(name, "package-name");
/// assert_eq!(version, "1.2.3");
/// ```
pub fn parse_pkg_name_optional_semver(name_version: &str) -> anyhow::Result<(String, String)> {
    let result: Vec<_> = name_version.splitn(2, '@').collect();

    if result.len() != 2 {
        return Ok((result[0].to_string(), "".to_string()));
    }

    let (name, version) = (result[0].to_string(), result[1].to_string());
    if let Err(e) = Version::parse(version.trim_start_matches('v')) {
        warn!("Failed to parse semantic version ({}): {}", version, e);
    }

    Ok((name, version))
}

/// Parse package name and version requirement
///
/// # Examples
///
/// ```
/// use huber::parse::parse_pkg_name_semver_req;
/// let (name, version) = parse_pkg_name_semver_req("package-name@~1.2.3").unwrap();
/// assert_eq!(name, "package-name");
/// assert_eq!(version, "~1.2.3");
///
/// let (name, version) = parse_pkg_name_semver_req("package-name@1.2.3").unwrap();
/// assert_eq!(name, "package-name");
/// assert_eq!(version, "1.2.3");
///
/// let (name, version) = parse_pkg_name_semver_req("package-name").unwrap();
/// assert_eq!(name, "package-name");
/// assert_eq!(version, "");
/// ```
pub fn parse_pkg_name_semver_req(name_version: &str) -> anyhow::Result<(String, String)> {
    let result: Vec<_> = name_version.splitn(2, '@').collect();

    if result.len() > 2 {
        return Err(anyhow!(
            "Failed to parse package name version due to invalid format"
        ));
    }

    let (name, version) = (
        result[0].to_string(),
        result.get(1).map_or("".to_string(), |v| v.to_string()),
    );
    if version.is_empty() || Version::parse(&version).is_ok() {
        return Ok((name, version));
    }

    VersionReq::parse(&version)?;
    Ok((name, version))
}