[R] Tool for update

[abunn]

I edited Rprofile to update everything on Tuesdays. I've been doing this
since 2.0 and I think I've had R running almost every Tuesday, which begs
the question of what I would be doing if R hadn't come into existence.

In any case, It works pretty well:

## This script gets all the packages I don't already have
# Run this once a week - say Tuesdays
if (interactive() ) { library(utils)}
is.tuesday <- as.POSIXlt(Sys.time())$wday == 2
if (is.tuesday == T)
{
    cat("Running a package check...\nOccurs once a week, on Tuesdays\n")
    cat("Upgrade existing packages and check for new packages (y/N)? ")
    check.new <- as.character(readLines(n = 1))
    if (any(check.new == "y", check.new == "Y"))
    {
        options(CRAN = "http://cran.us.r-project.org/")
        cat("This can take a few seconds...\n")
        x <- packageStatus(repositories = getOption("repositories")()[[1]])
        print(x)
        install.packages(x$avail$Package[x$avail$Status == "not installed"])
        cat("Upgrading to new versions if available\n")
        upgrade(x)
   }
}


> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Thomas Lumley
> Sent: Thursday, March 24, 2005 4:03 PM
> To: Darren Weber
> Cc: r-help at stat.math.ethz.ch; jblock at radiology.ucsf.edu
> Subject: Re: [R] Tool for update
>
>
> On Thu, 24 Mar 2005, Darren Weber wrote:
>
> > Is there a way to set a cron job to automatically update packages?
> > Maybe something like this:
> >
> > $unixprompt> R --vanilla update.packages()
> >
>
> If you put
> update.packages(repos="http://cran.us.r-project.org", ask=FALSE)
>
> in a file update.R you can do
>    R CMD BATCH update.R update.log
> or even fancier, something like
>    R CMD BATCH update.R update-`date --iso-8601`.log
>
> to keep dated log files.
>
>  	-thomas
>
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