[forgot to copy to R-help so re-sending]

---------- Forwarded message ----------
Date: Thu, 21 Mar 2024 11:41:52 +0000
From: luke-tier...@uiowa.edu
To: Duncan Murdoch <murdoch.dun...@gmail.com>
Subject: Re: [External] Re: [R] Building Packages.

At least on my installed version (which tells me it is out of date)
they appear to just be modifying the "package:utils" parent frame of
the global search path.

There seem to be a few others:

checkUtilsFun <- function(n)
    identical(get(n, "package:utils"), get(n, getNamespace("utils")))
names(which(! sapply(ls("package:utils", all = TRUE), checkUtilsFun)))
## [1] "bug.report" "file.edit" "help.request" ## [4] "history" "install.packages" "remove.packages" ## [7] "View"

I don't know why they don't put these overrides in the tools:rstudio frame.
At least that would make them more visible.

You can fix all of these with something like

local({
      up <- match("package:utils", search())
      detach("package:utils")
      library(utils, pos = up)
})

or just install.packages with

local({
    up <- match("package:utils", search())
    unlockBinding("install.packages", pos.to.env(up))
    assign("install.packages", utils::install.packages, "package:utils")
    lockBinding("install.packages", pos.to.env(up))
})

Best,

luke

On Thu, 21 Mar 2024, Duncan Murdoch wrote:

Yes, you're right. The version found in the search list entry for "package:utils" is the RStudio one; the ones found with two or three colons are the original.

Duncan Murdoch

On 21/03/2024 5:48 a.m., peter dalgaard wrote:
Um, what's with the triple colon? At least on my install, double seems to suffice:

identical(utils:::install.packages, utils::install.packages)
[1] TRUE
install.packages
function (...)
.rs.callAs(name, hook, original, ...)
<environment: 0x7f79e0019860>

-pd

On 21 Mar 2024, at 09:58 , Duncan Murdoch <murdoch.dun...@gmail.com> wrote:

The good news for Jorgen (who may not be reading this thread any more) is that one can still be sure of getting the original install.packages() by using

    utils:::install.packages( ... )

with *three* colons, to get the internal (namespace) version of the function.

Duncan Murdoch


On 21/03/2024 4:31 a.m., Martin Maechler wrote:
"Duncan Murdoch on Wed, 20 Mar 2024 13:20:12 -0400 writes:
     > On 20/03/2024 1:07 p.m., Duncan Murdoch wrote:
     >> On 20/03/2024 12:37 p.m., Ben Bolker wrote:
     >>> Ivan, can you give more detail on this? I've heard this
     >>> issue mentioned, but when I open RStudio and run
     >>> find("install.packages") it returns
     >>> "utils::install.packages", and running dump() from
     >>> within RStudio console and from an external "R
     >>> --vanilla" gives identical results.
     >>>
     >>> I thought at one point this might only refer to the GUI
     >>> package-installation interface, but you seem to be
     >>> saying it's the install.packages() function as well.
     >>>
     >>> Running an up-to-date RStudio on Linux, FWIW -- maybe
     >>> weirdness only happens on other OSs?
     >>
     >> On MacOS, I see this:
     >>
     >> > install.packages function (...)  .rs.callAs(name, hook,
     >> original, ...)  <environment: 0x7fa7c72a6268>
     >>
     >> I get the same results as you from find().  I'm not sure
     >> what RStudio is doing to give a different value for the
     >> function than what find() sees.
     > Turns out that RStudio replaces the install.packages
     > object in the utils package.
     > Duncan Murdoch
Yes, and this has been the case for several years now, and I
have mentioned this several times, too  (though some of it
possibly not in a public R-* mailing list).
And yes, that they modify the package environment
   as.environment("package:utils")
but leave the
   namespace  asNamespace("utils")
unchanged, makes it harder to see what's
going on (but also has less severe consequences; if they kept to
the otherwise universal *rule* that the namespace and package must have the same objects
apart from those only in the namespace,
people would not even have access to R's true install.packages()
but only see the RStudio fake^Hsubstitute..
We are still not happy with their decision. Also
help(install.packages) goes to R's documentation of R's
install.packages, so there's even more misleading of useRs.
Martin


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--
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
   Actuarial Science
241 Schaeffer Hall                  email:   luke-tier...@uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu/

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