Hi Daniel, Thanks for the reply. It seems that maybe this should be a collaboration between the swift compiler and the build system. I'm thinking something along the lines of the swift compiler being able to print out a list of file-level dependencies that the build system can use to decide whether to compile files or reuse compiled objects?
If the swift compiler could produce as a side effect of the compilation a list of files (with checksums) that it used, in theory it would be possible to checksum those files on another compilation (in a different machine) and reuse the object files right? Does that seem reasonable/doable? Thanks! -Oscar -- *Oscar Bonilla* Staff Software Engineer Tools Group oboni...@linkedin.com linkedin.com/in/seeob On Tue, Sep 27, 2016 at 12:47 PM, Daniel Dunbar <daniel_dun...@apple.com> wrote: > Hi Oscar, > > Nothing exists like that for Swift yet -- it is non-trivial for several > reasons, the big two are: > 1. The Swift compilation model relies on global information for a module, > and needs to see all the sources. This process is currently embedded in the > `swiftc` driver which would need to be aware of how to manage this process > (or factored into a library API that a client able to manage the > distribution could interact with). > 2. The Swift compilation model also heavily leverages the ability to > import Clang modules, which means that it *also* needs to be able to see > large amounts of C headers, in modular model not a header preprocessing > model. The distribution mechanism would also need to be aware of this. > > - Daniel > > On Sep 27, 2016, at 11:09 AM, Oscar Bonilla via swift-dev < > swift-dev@swift.org> wrote: > > Hello swift developers, > > I was wondering if any of you knows anything about something > like ccache and/or distcc for swift. > > Basically, what I want is to speed up compiles by caching the result > (like ccache does) and then reusing the compilation results across > multiple machines. > > Does anything like that exist for swift? I looked at ccache but they > don't support swift and I couldn't find anything on distcc either. > > Thanks! > > -Oscar > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev > > >
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