sync: change how we preserve objects in shared repos

Some automatic git operations will prune objects on us, and not just
the gc step.  Normally we don't care, but with shared projects, we
will have multiple git checkouts with refs that the others cannot
see, but with a shared object dir.  Any pruning of objects based on
refs in just one repo can easily break the others.

git-2.7.0 introduced a preciousObjects setting which tells git to
never prune objects for this exact scenario: there might be refs in
some location that git is unable to see.

Change-Id: I781de27c5bbe1d4c70f0187566141c9cce088bd8
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/254392
Reviewed-by: Nasser Grainawi <nasser@codeaurora.org>
Reviewed-by: David Riley <davidriley@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
1 file changed
tree: 0adf06ab67824998f080f527cfdd6423324efe05
  1. docs/
  2. hooks/
  3. subcmds/
  4. tests/
  5. .flake8
  6. .gitattributes
  7. .gitignore
  8. .mailmap
  9. .project
  10. .pydevproject
  11. color.py
  12. command.py
  13. editor.py
  14. error.py
  15. event_log.py
  16. git_command.py
  17. git_config.py
  18. git_refs.py
  19. git_ssh
  20. gitc_utils.py
  21. LICENSE
  22. main.py
  23. MANIFEST.in
  24. manifest_xml.py
  25. pager.py
  26. platform_utils.py
  27. platform_utils_win32.py
  28. progress.py
  29. project.py
  30. pyversion.py
  31. README.md
  32. repo
  33. repo_trace.py
  34. run_tests
  35. setup.py
  36. SUBMITTING_PATCHES.md
  37. tox.ini
  38. wrapper.py
README.md

repo

Repo is a tool built on top of Git. Repo helps manage many Git repositories, does the uploads to revision control systems, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git. The repo command is an executable Python script that you can put anywhere in your path.

Install

Many distros include repo, so you might be able to install from there.

# Debian/Ubuntu.
$ sudo apt-get install repo

# Gentoo.
$ sudo emerge dev-vcs/repo

You can install it manually as well as it's a single script.

$ mkdir -p ~/.bin
$ PATH="${HOME}/.bin:${PATH}"
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo
$ chmod a+rx ~/.bin/repo