VCS compatibility

These scenarios reproduce the limits described in the Sapling and Jujutsu comparisons:

Sapling sync metadata after a Git squash.
Sapling's Git index and branch state.
Jujutsu and the named Git branch.

They use the versions pinned in flake.nix. The Sapling scenarios run on Linux, where the development shell packages it. Their exact output establishes behavior for those versions.

Shared setup

setup.bash builds a library with one commit, an app monorepo, and a second monorepo with the library already spliced in:

$ build_scenario scenario_vcs_compatibility

$ git -C ../splice-monorepo splice status
On branch main

  up to date  vendor/lib

Shared setup​

Shared setup