On Thu, Jan 31, 2019 at 3:14 PM David Lindelof <linde...@ieee.org> wrote:
> > In summary, I'm convinced R would benefit from something similar to Java's > `Main-Class` header or Python's `__main__()` function. A new R CMD command > would take a package, install its dependencies, and run its "main" > function. I just created and built a very boilerplate R package called "runme". I can install its dependencies and run its "main" function with: $ R CMD INSTALL runme_0.0.0.9000.tar.gz $ R -e 'runme::main()' No new R CMDs needed. Now my choice of "main" is arbitrary, whereas with python and java and C the entrypoint is more tightly specified (__name__ == "__main__" in python, int main(..) in C and so on). But I don't think that's much of a problem. Does that not satisfy your requirements close enough? If you want it in one line then: R CMD INSTALL runme_0.0.0.9000.tar.gz && R -e 'runme::main()' will do the second if the first succeeds (Unix shells). You could write a script for $RHOME/bin/RUN which would be a two-liner and that could mandate the use of "main" as an entry point. But good luck getting anything into base R. Barry > If we have this machinery available, we could even consider > reaching out to Spark (and other tech stacks) developers and make it easier > to develop R applications for those platforms. > > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel