Hello,
I'm responsible for maintaining a mirrored internal CRAN repository for my
organization. We have a script that uses the miniCRAN library to add and update
packages within the repository and since the repository is stored on a network
drive I have to use UNC paths when calling miniCRAN functions such as this:
updatePackages(path = '\\\\my-network-drive.net\\repos\\packages', ...)
updatePackages function in turns call pkgAvail, another miniCRAN function,
which calls available.packages and then read.dcf function. However I discovered
that this line in available.packages transforms the UNC path to a form that
read.dcf can't use:
if (startsWith(repos, "file:///")) {tmpf <- paste0('/', substring(repos, 8L),
"/PACKAGES")
This line transforms my UNC path to
//\\\\my-network-drive.net\\repos\\packages, which read.dcf can't use. During
debugging I found that pkgAvail transformed my UNC path to 'file:///\\\\
my-network-drive.net\\repos\\packages' and that is the path being passed to
available.packages. To fix my issue I re-defined my own available.packages
function and changed the line to:
if (startsWith(repos, "file:///")) {tmpf <- paste0('/', substring(repos, 10L),
"/PACKAGES")
This way the UNC path being passed to read.dcf will be
'/\\my-network-drive.net\\repos\\packages', which read.dcf can use. I'm
wondering if similar changes can be made in the available.packages function for
the next R release to automatically detect UNC paths and modify it so that it
can work with UNC paths.
Thanks,
Mark
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