If you are wondering why RStudio did this, you can see their substitute
function using
(parent.env(environment(install.packages)))$hook
They appear to do these things:
- Allow package installation to be disabled.
- Check if a package to be installed is already loaded, so that
RStudio can restart R for the install.
- Add Rtools to the PATH if necessary.
- Trigger an event to say that something is about to be changed about
the installed packages, presumably so that they can mark a cached list
of installed packages as stale.
- Call the original function.
I think all of these things could be done if install.packages() called
a hook at the start, as library() does (via attachNamespace()) when a
package is attached. It might be that putting the wrapper code into
tools:rstudio would cause confusion for users when there were two
objects of the same name on the search list, though I don't see how.
Duncan Murdoch
On 21/03/2024 7:44 a.m., luke-tierney--- via R-help wrote:
[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At least on my installed version (which tells me it is out of date)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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