On Mon, Jun 27, 2016 at 12:13 PM, Renato Golin via llvm-dev < llvm-...@lists.llvm.org> wrote:
> On 27 June 2016 at 17:03, Rafael Espíndola <rafael.espind...@gmail.com> > wrote: > > I think that trying to create a ordering/rev number between independent > git > > repositories is fundamentally unreliable. > > > > If we want to keep llvm and clang in lock step we should probably > probably > > just have them in the same repository like > > https://github.com/llvm-project/llvm-project. > > That is similar to the proposal we have, except that llvm-projects > will have sub-modules. > > Having all of them in the same physical repository is a big problems > for those that only use a small subset of the components, which is the > vast majority of users, most of the time (all buildbots, Jenkins, > local development, downstream users, even releases don't clone all > repos). (This is kinda a sidenote, because it doesn't actually change the problem-space at all, but.... :) I really disagree that it'd cause big problems to merge them all. Especially when using git, which makes it a lot easier to keep a local shared copy of the repository, so you don't need to re-download the whole world every time you want a clean checkout. The entire set of llvm code, all put together, is really just not that big in the end. But I do find it annoying to have the many different repositories to track, and I don't really see the value of having as many as we do. However, even without big problems, it does make some sense to keep the C/C++ language separate from the (mostly-)language-independent llvm backend. There are a multitude of other frontends which use LLVM too: go, swift, rust, etc. Would we really want to pull in all of those into a single repo, as well, if they happened to get contributed to the llvm project organization? Probably not. So, while this wouldn't affect the need for a "llvm-project" repository, it might be nice to consider merging some of the other ones together.... E.g.: llvm: Core language-independent functionality: LLVM, assembler, and linker tools. (merge in lld, and maybe compiler-rt, to the llvm repository). clang: C/C++ frontend and related libraries (merge in clang-tools-extra, libcxx, and libcxxabi into the clang repository).
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