Enum RepositoryFormat 

pub enum RepositoryFormat {
    CurrentV6,
}

Repository format selected by the authoritative .prikk/FORMAT marker.

RFC 103 retired format 1; RFC 102 Stage 3 retired format 2 the same way, RFC 102 Stage 4 did the same again for format 3, RFC 102 Stage 5 did it once more for format 4, and RFC 102 Stage 6 does it again for format 5 – rejected at open (read_repository_format), not merely unsupported for mutation, no variant naming it here. This bump was sought and decided by the owner explicitly (design-v1.md §14.7, 2026-08-15) and Stage 6 follows the same precedent (design-v1.md §15.6): Stage 6 Step 1 adds a B slot and a generation log for each of the three compacting containers, new names durable_append’s strictness makes unsafe to leave undetected in an older repository. The single remaining variant is kept as an enum rather than collapsed away, per design-v1.md §12.1’s own note: require_current_format’s disk re-read is a real runtime check (RFC 103 Increment B was abandoned specifically because of it), so the enum’s shape still carries meaning and is not free to simplify away.

“Format 2”/“format 3”/“format 4”/“format 5”/“format 6” here name the on-disk repository layout (loose objects/refs vs. RFC 102’s containers) – a different axis from DC-40’s “format-2” wire schema (block_state.rs, state_root.rs, format.rs’s Block/Patch shape and Merkle rules), which no RFC 102 stage touches and which keeps its own “format-2” name regardless of what this enum’s current variant is called (design §8: “format-2’s rejection of the ahead-log state” is explicitly unchanged).

Variants

CurrentV6

Current format 6: RFC 102 Stage 6 Step 1’s generation-aware index containers (ref pointer index, received-ref index, trust policy container), layered on every prior stage’s container work, still writable under the unchanged DC-40 schema and state-root rules.

Trait Implementations

impl Clone for RepositoryFormat

fn clone(&self) -> RepositoryFormat

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for RepositoryFormat

impl Debug for RepositoryFormat

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for RepositoryFormat

impl PartialEq for RepositoryFormat

fn eq(&self, other: &RepositoryFormat) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RepositoryFormat