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Re: [PATCH] More reproducibility fixes for R.

From: Ricardo Wurmus
Subject: Re: [PATCH] More reproducibility fixes for R.
Date: Wed, 08 Mar 2017 18:56:34 +0100
User-agent: mu4e 0.9.18; emacs 25.1.1

Ricardo Wurmus <address@hidden> writes:

> attached are more reproducibility fixes for R.  Unfortunately, it seems
> that files of type “rdb”, “rdx”, and “rds” are still not reproducible.
> This leaves us with the following files in R that are currently not
> reproducible:

> /lib/R/library/boot/help/paths.rds
> /lib/R/library/class/help/paths.rds
> /lib/R/library/cluster/help/paths.rds
> /lib/R/library/codetools/help/paths.rds
> /lib/R/library/foreign/help/paths.rds
> /lib/R/library/KernSmooth/help/paths.rds
> /lib/R/library/lattice/help/paths.rds
> /lib/R/library/MASS/help/paths.rds
> /lib/R/library/Matrix/help/paths.rds
> /lib/R/library/mgcv/help/paths.rds
> /lib/R/library/nlme/help/paths.rds
> /lib/R/library/nnet/help/paths.rds
> /lib/R/library/rpart/help/paths.rds
> /lib/R/library/spatial/help/paths.rds
> /lib/R/library/survival/help/paths.rds
> I’ll try to figure out if there’s something we can do to make them
> reproducible (there’s a Debian bug report with relevant information).  I
> had originally assumed that 3.3.2 already included fixes for this.

The paths.rds files contain temporary paths like this:


These paths contain the random strings produced by “mkdtemp”.  This
happens in “src/main/sysutils.c”.

I don’t know if we need these files.  All of them are part of the
recommended packages.  I don’t know if these are also built by Debian.

I patched the package in a previous commit to override the built
timestamp, and it does seem to have an effect on the DESCRIPTION file,
but it does not affect the .rd* files.  More investigation required.


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