OXYGENHUB

Changes up to # 47ce8b8e2d4b touching docs/revset_query_language.md · 2

See as swimlanes (independent work side by side)

Revsets: oxy log -r selects changes by set algebra over history head
Andy McCall ·
✔ 47ce8b8e2d4b
Design: revsets (refs #65)
Andy McCall ·
✔ 8ad9dfe16303