Function fetch

lib-engine/src/cmd/git.rs:241–311

(
    repository_url: &Url,
    into_dir: P,
    get_credentials: &impl Fn(&str) -> Vec<(CredentialType, Cred)>,
    commit_id: &str,
)

}

fn fetch<P>(
    repository_url: &Url,
    into_dir: P,
    get_credentials: &impl Fn(&str) -> Vec<(CredentialType, Cred)>,
    commit_id: &str,
) -> Result<Repository, Error>
where
    P: AsRef<Path>,
{
    #[cfg(not(feature = "test-git-container"))]
    {
        // Allow file:// in unit tests so tests can use a local repo without a network round-trip.
        #[cfg(not(test))]
        if repository_url.scheme() != "https" {
            return Err(Error::from_str("Repository URL have to start with https://"));
        }
        #[cfg(test)]
        if repository_url.scheme() != "https" && repository_url.scheme() != "file" {
            return Err(Error::from_str("Repository URL have to start with https://"));
        }
    }
    #[cfg(feature = "test-git-container")]
    {
        // http is allowed only for tests (git server on testcontainer)
        if !(repository_url.scheme() == "https" || repository_url.scheme() == "http") {
            // if repository_url.scheme() != "https" {
            return Err(Error::from_str("Repository URL have to start with https://"));
        }
    }

    // Prepare authentication callbacks.
    let mut callbacks = RemoteCallbacks::new();
    callbacks.credentials(authentication_callback(&get_credentials));

    // Prepare fetch options.
    let mut fo = FetchOptions::new();
    fo.remote_callbacks(callbacks);
    // Local transport doesn't support shallow fetches; skip depth for file:// (test-only path).
    if repository_url.scheme() != "file" {
        fo.depth(1);
    }
    fo.update_fetchhead(false);
    fo.download_tags(AutotagOption::None);

    // Get our repository
    if into_dir.as_ref().exists() {
        let _ = std::fs::remove_dir_all(into_dir.as_ref());
    }

    #[cfg(not(feature = "test-git-container"))]
    {
        let repo = Repository::init(into_dir.as_ref())?;
        remote_fetch(repository_url, &commit_id, &mut fo, &repo)?;
        Ok(repo)
    }
    #[cfg(feature = "test-git-container")]
    {
        use git2::build::RepoBuilder;