Thanks! Good point about the compiler toolchain.....on Alpine Linux, which tends to be small, gcc can be less than 100MB, so still might matter a bit....
Gabor On Fri, Mar 8, 2019 at 1:44 PM Tomas Kalibera <tomas.kalib...@gmail.com> wrote: > > Well, this only applies to source installs of packages that have some > files with the special extension, so on systems where a compiler > toolchain needs to be installed, so the image cannot be really tiny, > anyway. But ok, I've made stage install use "file" only when it is > available. When it isn't and some file with extension sl, so, dylib or > dll in the package installation is not in fact a shared object, one will > get a number of error messages from the respective tools, but the > installation passes. Currently on Linux this is the case of RcppParallel > and FastRWeb. > > Tomas > > On 3/7/19 11:57 PM, Gábor Csárdi wrote: > > The new staged package installation shells out to the 'file' utility > > on Unix systems: > > https://github.com/wch/r-source/blob/31ee14c620eb1b939acd322f3b5617f998aab8e8/src/library/tools/R/install.R#L578 > > > > Although 'file' is usually present on most Unix systems, it might be > > missing from small Docker containers, where the aim is to make the > > container as small possible. The magic file of 'file' is about 5MB, so > > that is significant in this case. > > > > R uses 'file' to decide if a .so, .dll, etc. file is indeed a shared > > library, and (as I understand) if it is, it then goes on to try to fix > > the hardcoded installation path in it, using an os specific tool. > > > > As the second part needs to handle errors anyway, I wonder if it would > > make sense to skip the 'file' call completely, after all it is quite > > unlikely that a .dll or .so, etc. file is _not_ a shared library, and > > even if it is not, the errors will be caught later. > > > > Thanks, Gabor > > > > ______________________________________________ > > R-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-devel > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
