Struct Runner 

pub struct Runner<'a> { /* private fields */ }

Driver around a Connection that knows how to read / write the schema_migrations ledger and apply pending migrations.

Implementations

impl<'a> Runner<'a>

pub fn new(conn: &'a Connection) -> Self

pub fn ensure_table(&self) -> Result<()>

Ensure the bookkeeping table exists. Idempotent — safe to call on every CLI invocation.

pub fn status(&self) -> Result<Status>

Snapshot of (applied, pending) migrations vs the ALL registry.

pub fn up(&self, target: Option<&str>) -> Result<Vec<AppliedNow>>

Apply every pending migration in ALL order, up to and including target (or all pending when target is None). Returns the list of migrations actually applied this call (skipped ones are not included).

pub fn apply(&self, id: &str) -> Result<()>

Apply exactly one migration by id (errors if already applied OR not known). Useful when an operator wants strict 1-step control.