Key.reuse: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/ez/key.bend as Key
Lines 58-67 of ezx@1.11.0.0/src/ez/key.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/ez/key.bend&start_line=58&end_line=67

import Base

# the three fields the same, and a commit at all. An empty commit is a dirty
# tree or a directory that is not a checkout, and those are built every time.
def reuse(was: Stamp, now: Stamp) -> Bool:
  match was:
    case Stamp{+r0, +f0, +b0}:
      match now:
        case Stamp{+r1, +f1, +b1}:
          Bool.and(Bool.not(String.is_empty(r1)),
            Bool.and(String.eq(r0, r1),
              Bool.and(String.eq(f0, f1), String.eq(b0, b1))))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.is_empty
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/ez/key.bend&name=Stamp