[R-SIG-Mac] Corrupt R installation

[Dr Eberhard Lisse]

On 08/06/2021 22:46, moleps islon wrote:
[...]
> I have no idea why, but my R installation (Mac OS X - Big Sur)
> automatically updates causing havoc with my libraries each time.  My
> Mac is under administration from the university and their software
> center, but they claim it is not their fault - but I still suspect
> them for causing all the trouble.
[...]

Sounds like Homebrew to me.  If so, or anyway, create a file (before
updating) which contains something like

	 #!/usr/bin/env Rscript --vanilla
	 #
	 # set the Mirror
	 #
	 local({
		r <- getOption("repos")
		 r["CRAN"] <- "https://cloud.r-project.org/"
		options(repos = r)
	 })
	 install.packages(c(
		  "lubridate",
		  "tidyverse"
	 ), dependencies = TRUE)


or similar and run it if the additional libraries disappear.

You can fill this with something like

	 grep -h library *R \
	 |awk -F 'library' '{print $2}' \
	 |sed 's/(//g;s/)//g' \
	 |sort -u \
	 |awk '{print "\"" $1 "\","}'
	 |sed '$ s/,$//'

or in a few lines of the language of your choice generate the whole
script. And of course refine to your liking with something like

	 find ~/R -name '*.R' -exec grep -h library {} ';' \
	 ...

greetings, el

-- 
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