Over the last few days I put together a new package RcppAPT which interfaces the C++ library behind the awesome
apt-cache, … commands and their GUI-based brethren.
The package currently implements two functions which permit search for package information via a regular expression, as well as a (vectorised) package name-based check. More to come, and contributions would be very welcome.
A few examples just to illustrate follow.
R> hasPackages(c("r-cran-rcpp", "r-cran-rcppapt")) r-cran-rcpp r-cran-rcppapt TRUE FALSE
This shows that Rcpp is (of course) available as a binary, but this (very new) package is (unsurprisingly) not yet available pre-built.
We can search by regular expression:
R> library(RcppAPT) R> getPackages("^r-base-c.") Package Installed Section 1 r-base-core-dbg 3.1.2-1utopic0 universe/math 2 r-base-core-dbg <NA> universe/math 3 r-base-core 3.1.2-1utopic0 universe/math 4 r-base-core <NA> universe/math R>
With the (default) expression catching everything, we see a lot of packages:
R> dim(getPackages())  104431 3 R>