[PATCH] D26334: Add some facilities to work with a git monorepo (experimental setup)

[Mehdi AMINI via llvm-commits]

mehdi_amini created this revision.
mehdi_amini added a reviewer: jlebar.
mehdi_amini added a subscriber: llvm-commits.
Herald added subscribers: modocache, mgorny.

Some changes are made to cmake, especially the addition of a new
LLVM_ENABLE_PROJECTS option that makes the build system aware of
the monorepo directory structure.

Also a new script is added in llvm/utils/git-svn/. When present in
the $PATH, it enables a `git llvm` command. It is providing at this
point only the ability to push from the git monorepo: `git llvm push`.
It is intended to evolves with more features, for instance I plan on
features like `git llvm show r284955` to help working with sequential
revision numbers.


https://reviews.llvm.org/D26334

Files:
  libcxxabi/CMakeLists.txt
  llvm/CMakeLists.txt
  llvm/docs/GettingStarted.rst
  llvm/utils/git-svn/git-llvm

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