Method new

src/models/versioning.rs:167–186

(env: Arc<Environment>, db: Database)

impl VersionControl {
    pub fn new(env: Arc<Environment>, db: Database) -> lmdb::Result<(Self, VersionNumber)> {
        let version = VersionNumber(0);
        let version_meta = VersionInfo::new_implicit(version, u32::MAX, Utc::now(), 0, 0, 0);

        let version_key = key!(v:version);
        let current_version_key = key!(m:current_version);
        let version_bytes = version_meta.serialize();

        let mut txn = env.begin_rw_txn()?;
        txn.put(db, &version_key, &version_bytes, WriteFlags::empty())?;
        txn.put(
            db,
            &current_version_key,
            &version.to_le_bytes(),
            WriteFlags::empty(),
        )?;
        txn.commit()?;

        Ok((Self { env, db }, version))
    }

    pub fn from_existing(env: Arc<Environment>, db: Database) -> Self {
        Self { env, db }