Beagle SCM

DOG tickets: shared dog-layer reworks

dog/ is the shared layer between abc/ and the verb dogs (sniff/keeper/graf/spot/bro). Tickets here move generic, multiply-used machinery DOWN into dog/ and rework its APIs. Current focus: relocate the token-level history engine out of graf/ into a columnar, HUNK-compliant dog/WEAVE reusable by every dog and keyed on real commit ids. Plan-shaped pages, cleared via the Issues loop.

Active tickets

• DOG-001 — umbrella: rewrite WEAVE as a columnar, HUNK-compliant

  dog/WEAVE ({text,toks,ins,rms,commits}); full design in its api.

• DOG-002 — prereq: relocate the diff core (BRAM+NEIL) from graf/

  down to dog/, behaviour-preserving (unblocks the dog/ layering).

• DOG-003 — core: format + WEAVEParse/Next/Merge/Produce + cursor +

  table-driven tests (folds the DIS-003 holdout in as a property case).

• DOG-004 — emit: WEAVEEmit{Diff,Full,Merged} + Alive/Produce over

  an index-bitset scope; 16 MiB cap + large-file fallback (folds DIFF-007).

• DOG-005 — cut-over: repoint graf (GET/REBASE/BLAME/DIFFREF/LOG) at the

  new API, delete graf/WEAVE.{c,h}, update both INDEX.md.