use std::borrow::Cow; use crate::{    bstr::{BStr, ByteSlice, ByteVec},    remote, Reference,}; /// The name of a remote, either interpreted as symbol like `origin` or as url as returned by [`Reference::remote_name()`].#[derive(Debug, PartialEq, Eq, Clone)]pub enum Name<'repo> {    /// A symbolic name, like `origin`    Symbol(Cow<'repo, str>),    /// A url pointing to the remote host directly.    Url(Cow<'repo, BStr>),} impl Name<'_> {    /// Return this instance as a symbolic name, if it is one.    pub fn as_symbol(&self) -> Option<&str> {        match self {            Name::Symbol(n) => n.as_ref().into(),            Name::Url(_) => None,        }    }     /// Return this instance as url, if it is one.    pub fn as_url(&self) -> Option<&BStr> {        match self {            Name::Url(n) => n.as_ref().into(),            Name::Symbol(_) => None,        }    }} /// Remotesimpl<'repo> Reference<'repo> {    /// Find the name of our remote for `direction` as configured in `branch.<name>.remote|pushRemote` respectively.    /// If `Some(<name>)` it can be used in [`Repository::find_remote(…)`][crate::Repository::find_remote()], or if `None` then    /// [Repository::remote_default_name()][crate::Repository::remote_default_name()] could be used in its place.    ///    /// Return `None` if no remote is configured.    ///    /// # Note    ///    /// - it's recommended to use the [`remote(…)`][Self::remote()] method as it will configure the remote with additional    ///   information.    /// - `branch.<name>.pushRemote` falls back to `branch.<name>.remote`.    pub fn remote_name(&self, direction: remote::Direction) -> Option<Name<'repo>> {        let name = self.name().shorten().to_str().ok()?;        let config = &self.repo.config.resolved;        (direction == remote::Direction::Push)            .then(|| {                config                    .string("branch", Some(name), "pushRemote")                    .or_else(|| config.string("remote", None, "pushDefault"))            })            .flatten()            .or_else(|| config.string("branch", Some(name), "remote"))            .and_then(|name| {                if name.contains(&b'/') {                    Some(Name::Url(name))                } else {                    match name {                        Cow::Borrowed(n) => n.to_str().ok().map(Cow::Borrowed),                        Cow::Owned(n) => Vec::from(n).into_string().ok().map(Cow::Owned),                    }                    .map(Name::Symbol)                }            })    }     /// Like [`remote_name(…)`][Self::remote_name()], but configures the returned `Remote` with additional information like    ///    /// - `branch.<name>.merge` to know which branch on the remote side corresponds to this one for merging when pulling.    pub fn remote(        &self,        direction: remote::Direction,    ) -> Option<Result<crate::Remote<'repo>, remote::find::existing::Error>> {        // TODO: use `branch.<name>.merge`        self.remote_name(direction).map(|name| match name {            Name::Symbol(name) => self.repo.find_remote(name.as_ref()).map_err(Into::into),            Name::Url(url) => git_url::parse(url.as_ref()).map_err(Into::into).and_then(|url| {                self.repo                    .remote_at(url)                    .map_err(|err| remote::find::existing::Error::Find(remote::find::Error::Init(err)))            }),        })    }}