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#![allow(clippy::result_large_err)]
use std::convert::TryInto;
use crate::{bstr::BStr, config, remote, remote::find, Remote};
impl crate::Repository {
/// Create a new remote available at the given `url`.
///
/// It's configured to fetch included tags by default, similar to git.
/// See [`with_fetch_tags(…)`][Remote::with_fetch_tags()] for a way to change it.
pub fn remote_at<Url, E>(&self, url: Url) -> Result<Remote<'_>, remote::init::Error>
where
Url: TryInto<gix_url::Url, Error = E>,
gix_url::parse::Error: From<E>,
{
Remote::from_fetch_url(url, true, self)
}
/// Create a new remote available at the given `url` similarly to [`remote_at()`][crate::Repository::remote_at()],
/// but don't rewrite the url according to rewrite rules.
/// This eliminates a failure mode in case the rewritten URL is faulty, allowing to selectively [apply rewrite
/// rules][Remote::rewrite_urls()] later and do so non-destructively.
pub fn remote_at_without_url_rewrite<Url, E>(&self, url: Url) -> Result<Remote<'_>, remote::init::Error>
where
Url: TryInto<gix_url::Url, Error = E>,
gix_url::parse::Error: From<E>,
{
Remote::from_fetch_url(url, false, self)
}
/// Find the configured remote with the given `name_or_url` or report an error,
/// similar to [`try_find_remote(…)`][Self::try_find_remote()].
///
/// Note that we will obtain remotes only if we deem them [trustworthy][crate::open::Options::filter_config_section()].
pub fn find_remote<'a>(&self, name_or_url: impl Into<&'a BStr>) -> Result<Remote<'_>, find::existing::Error> {
let name_or_url = name_or_url.into();
Ok(self
.try_find_remote(name_or_url)
.ok_or_else(|| find::existing::Error::NotFound {
name: name_or_url.into(),
})??)
}
/// Find the default remote as configured, or `None` if no such configuration could be found.
///
/// See [`remote_default_name()`](Self::remote_default_name()) for more information on the `direction` parameter.
pub fn find_default_remote(
&self,
direction: remote::Direction,
) -> Option<Result<Remote<'_>, find::existing::Error>> {
self.remote_default_name(direction)
.map(|name| self.find_remote(name.as_ref()))
}
/// Find the configured remote with the given `name_or_url` or return `None` if it doesn't exist,
/// for the purpose of fetching or pushing data.
///
/// There are various error kinds related to partial information or incorrectly formatted URLs or ref-specs.
/// Also note that the created `Remote` may have neither fetch nor push ref-specs set at all.
///
/// Note that ref-specs are de-duplicated right away which may change their order. This doesn't affect matching in any way
/// as negations/excludes are applied after includes.
///
/// We will only include information if we deem it [trustworthy][crate::open::Options::filter_config_section()].
pub fn try_find_remote<'a>(&self, name_or_url: impl Into<&'a BStr>) -> Option<Result<Remote<'_>, find::Error>> {
self.try_find_remote_inner(name_or_url.into(), true)
}
/// This method emulate what `git fetch <remote>` does in order to obtain a remote to fetch from.
///
/// As such, with `name_or_url` being `Some`, it will:
///
/// * use `name_or_url` verbatim if it is a URL, creating a new remote in memory as needed.
/// * find the named remote if `name_or_url` is a remote name
///
/// If `name_or_url` is `None`:
///
/// * use the current `HEAD` branch to find a configured remote
/// * fall back to either a generally configured remote or the only configured remote.
///
/// Fail if no remote could be found despite all of the above.
pub fn find_fetch_remote(&self, name_or_url: Option<&BStr>) -> Result<Remote<'_>, find::for_fetch::Error> {
Ok(match name_or_url {
Some(name) => match self.try_find_remote(name).and_then(Result::ok) {
Some(remote) => remote,
None => self.remote_at(gix_url::parse(name)?)?,
},
None => self
.head()?
.into_remote(remote::Direction::Fetch)
.transpose()?
.map(Ok)
.or_else(|| self.find_default_remote(remote::Direction::Fetch))
.ok_or_else(|| find::for_fetch::Error::ExactlyOneRemoteNotAvailable)??,
})
}
/// Similar to [`try_find_remote()`][Self::try_find_remote()], but removes a failure mode if rewritten URLs turn out to be invalid
/// as it skips rewriting them.
/// Use this in conjunction with [`Remote::rewrite_urls()`] to non-destructively apply the rules and keep the failed urls unchanged.
pub fn try_find_remote_without_url_rewrite<'a>(
&self,
name_or_url: impl Into<&'a BStr>,
) -> Option<Result<Remote<'_>, find::Error>> {
self.try_find_remote_inner(name_or_url.into(), false)
}
fn try_find_remote_inner<'a>(
&self,
name_or_url: impl Into<&'a BStr>,
rewrite_urls: bool,
) -> Option<Result<Remote<'_>, find::Error>> {
fn config_spec<T: config::tree::keys::Validate>(
specs: Vec<std::borrow::Cow<'_, BStr>>,
name_or_url: &BStr,
key: &'static config::tree::keys::Any<T>,
op: gix_refspec::parse::Operation,
) -> Result<Vec<gix_refspec::RefSpec>, find::Error> {
let kind = key.name;
specs
.into_iter()
.map(|spec| {
key.try_into_refspec(spec, op).map_err(|err| find::Error::RefSpec {
remote_name: name_or_url.into(),
kind,
source: err,
})
})
.collect::<Result<Vec<_>, _>>()
.map(|mut specs| {
specs.sort();
specs.dedup();
specs
})
}
let mut filter = self.filter_config_section();
let name_or_url = name_or_url.into();
let mut config_url = |key: &'static config::tree::keys::Url, kind: &'static str| {
self.config
.resolved
.string_filter("remote", Some(name_or_url), key.name, &mut filter)
.map(|url| {
key.try_into_url(url).map_err(|err| find::Error::Url {
kind,
remote_name: name_or_url.into(),
source: err,
})
})
};
let url = config_url(&config::tree::Remote::URL, "fetch");
let push_url = config_url(&config::tree::Remote::PUSH_URL, "push");
let config = &self.config.resolved;
let fetch_specs = config
.strings_filter("remote", Some(name_or_url), "fetch", &mut filter)
.map(|specs| {
config_spec(
specs,
name_or_url,
&config::tree::Remote::FETCH,
gix_refspec::parse::Operation::Fetch,
)
});
let push_specs = config
.strings_filter("remote", Some(name_or_url), "push", &mut filter)
.map(|specs| {
config_spec(
specs,
name_or_url,
&config::tree::Remote::PUSH,
gix_refspec::parse::Operation::Push,
)
});
let fetch_tags = config
.string_filter("remote", Some(name_or_url), "tagOpt", &mut filter)
.map(|value| {
config::tree::Remote::TAG_OPT
.try_into_tag_opt(value)
.map_err(Into::into)
});
let fetch_tags = match fetch_tags {
Some(Ok(v)) => v,
Some(Err(err)) => return Some(Err(err)),
None => Default::default(),
};
match (url, fetch_specs, push_url, push_specs) {
(None, None, None, None) => None,
(None, _, None, _) => Some(Err(find::Error::UrlMissing)),
(url, fetch_specs, push_url, push_specs) => {
let url = match url {
Some(Ok(v)) => Some(v),
Some(Err(err)) => return Some(Err(err)),
None => None,
};
let push_url = match push_url {
Some(Ok(v)) => Some(v),
Some(Err(err)) => return Some(Err(err)),
None => None,
};
let fetch_specs = match fetch_specs {
Some(Ok(v)) => v,
Some(Err(err)) => return Some(Err(err)),
None => Vec::new(),
};
let push_specs = match push_specs {
Some(Ok(v)) => v,
Some(Err(err)) => return Some(Err(err)),
None => Vec::new(),
};
Some(
Remote::from_preparsed_config(
Some(name_or_url.to_owned()),
url,
push_url,
fetch_specs,
push_specs,
rewrite_urls,
fetch_tags,
self,
)
.map_err(Into::into),
)
}
}
}
}
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