[R] How to list recursive package dependency prior to installation/upgrade of a package

[William Dunlap]

available.packages() and installed.packages() map package names to version
and a lot of other things.

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Thu, Mar 14, 2019 at 1:03 PM Sebastien Bihorel <
sebastien.bihorel using cognigencorp.com> wrote:

> That is great!
>
> Is there a way to know version required in the dependent packages?
>
> ------------------------------
> *From: *"William Dunlap" <wdunlap using tibco.com>
> *To: *"Sebastien Bihorel" <sebastien.bihorel using cognigencorp.com>
> *Cc: *r-help using r-project.org
> *Sent: *Thursday, March 14, 2019 3:50:58 PM
> *Subject: *Re: [R] How to list recursive package dependency prior to
> installation/upgrade of a package
>
> > tools::package_dependencies("lme4")
> $lme4
>  [1] "Matrix"    "methods"   "stats"     "graphics"  "grid"
> "splines"
>  [7] "utils"     "parallel"  "MASS"      "lattice"   "boot"      "nlme"
>
> [13] "minqa"     "nloptr"    "Rcpp"      "RcppEigen"
>
> > tools::package_dependencies("lme4", recursive=TRUE)
> $lme4
>  [1] "Matrix"    "methods"   "stats"     "graphics"  "grid"
> "splines"
>  [7] "utils"     "parallel"  "MASS"      "lattice"   "boot"      "nlme"
>
> [13] "minqa"     "nloptr"    "Rcpp"      "RcppEigen" "grDevices"
>
> Use reverse=TRUE to list packages that depend on the given package.
> Bill Dunlap
> TIBCO Software
> wdunlap tibco.com
>
>
> On Thu, Mar 14, 2019 at 12:09 PM Sebastien Bihorel <
> sebastien.bihorel using cognigencorp.com> wrote:
>
>> Hi
>>
>> Is there an elegant way to recursive list all dependencies of a package
>> prior to its installation or upgrade?
>>
>> I am particularly interested in finding which of the packages currently
>> installed in my test/production environment would require an upgrade prior
>> to actual installation/upgrade of a package.
>>
>> Can the packrat package help with this?
>>
>> Thank you
>>
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>
>

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