Function reset_to

crates/commitlog/src/commitlog.rs:700–703

Remove all data past the given transaction `offset`. The function deletes log segments starting from the newest. As multiple segments cannot be deleted atomically, the log may be left longer than `offset` if the function does not return successfully. If the function returns successfully, the most recent [`Commit`] in the log will contain the transaction at `offset`. The log must be re-opened if

(repo: &impl Repo, offset: u64)

///
/// The log must be re-opened if it is to be used after calling this function.
pub fn reset_to(repo: &impl Repo, offset: u64) -> io::Result<()> {
    let segments = repo.existing_offsets()?;
    reset_to_internal(repo, &segments, offset)
}

fn reset_to_internal(repo: &impl Repo, segments: &[u64], offset: u64) -> io::Result<()> {
    for segment in segments.iter().copied().rev() {