add experimental git worktree support

This provides initial support for using git worktrees internally
instead of our own ad-hoc symlink tree.  It's been lightly tested
which is why it's not currently exposed via --help.

When people opt-in to worktrees in an existing repo client checkout,
no projects are migrated.  Instead, only new projects will use the
worktree method.  This allows for limited testing/opting in without
having to completely blow things away or get a second checkout.

Bug: https://crbug.com/gerrit/11486
Change-Id: Ic3ff891b30940a6ba497b406b2a387e0a8517ed8
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/254075
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
6 files changed
tree: 97c639570a60dd02a6ee9b712dff091a83ac8110
  1. .github/
  2. docs/
  3. hooks/
  4. subcmds/
  5. tests/
  6. .flake8
  7. .gitattributes
  8. .gitignore
  9. .mailmap
  10. .project
  11. .pydevproject
  12. color.py
  13. command.py
  14. editor.py
  15. error.py
  16. event_log.py
  17. git_command.py
  18. git_config.py
  19. git_refs.py
  20. git_ssh
  21. gitc_utils.py
  22. LICENSE
  23. main.py
  24. MANIFEST.in
  25. manifest_xml.py
  26. pager.py
  27. platform_utils.py
  28. platform_utils_win32.py
  29. progress.py
  30. project.py
  31. pyversion.py
  32. README.md
  33. repo
  34. repo_trace.py
  35. run_tests
  36. setup.py
  37. SUBMITTING_PATCHES.md
  38. tox.ini
  39. 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