Managing Local Changes with Mercurial Queues
Repository Management Problem
gem5 users typically opt to freeze their repository at a particular changeset when starting a new research project. This approach has several downsides:
- It discourages users from contributing back any useful changes they may develop.
- If a useful change is added upstream, it's a long, tedious process to update.
If a user chooses to keep their local repository up-to-date with the source tree they typically use branches and merge any upstream changes into their branches. This approach also has its downsides:
- If any local change needs to be updated, it requires a separate commit.
- If you have several small, unrelated changes and separate branches must be maintained.
- Upstream changes must be merged into the local branches.