{

        let author = repo.signature()?;

        let timestamp = author.when().seconds();

        let mut headers = commit::Headers::new();

        headers.push(

            "gpgsig",

            &String::from_utf8(crypto::ssh::ExtendedSignature::from(signature).to_armored())?,

        );

        let author = commit::Author::try_from(&author)?;

        #[cfg(debug_assertions)]

        let (author, timestamp) = if let Ok(s) = std::env::var(crate::git::RAD_COMMIT_TIME) {

            let timestamp = s.trim().parse::<i64>().unwrap();

            let author = commit::Author {

                time: git_commit::author::Time::new(timestamp, 0),

                ..author

            };

            (author, timestamp)

        } else {

            (author, timestamp)

        let oid = Commit::new(

            tree.id(),

            parents,

            author.clone(),

            author,

            headers,

            message,

            trailers,

        )

        .write(repo)?;

        Ok((Oid::from(oid), timestamp as u64))

    }