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Roadmap

Status: design stage. Phases below are intent, not delivered work. See the README for current reality.

The roadmap reflects the staging in planning/strategy-memo.md and the MVP boundaries in planning/scope.md.

Phase 0 — Skeleton (current)

  • Subcommand entry point (filter-process, diff-driver, merge-driver) that compiles and runs with placeholder logic.
  • Documentation of the architecture and the core open problems.

Phase 1 — Round-trip for one language

  • Parse Rust with Tree-sitter; serialize the tree as the stored blob.
  • Deterministic pretty-printer so smudge(clean(source)) is canonical and stable (idempotent).
  • Real clean/smudge filter speaking Git's long-running filter protocol.

Phase 2 — Structural diff

  • Read-only AST diff driver: suppress formatting-only changes, show structural edits (add / delete / update). This is the first user-visible win.

Phase 3 — Structural merge

  • 3-way tree merge with conflict-marker fallback via the merge driver.

Phase 4 — Node identity (the hard part)

  • Stable identity for tree nodes across versions, enabling move detection and refactor-aware history. Explicitly out of scope for the MVP; see planning/scope.md.

Later