Fix: provision: do not install ggplot2 from CRAN anymore

1 files changed, 20 insertions, 3 deletions

diff --git a/bin/provision b/bin/provision
index 25816f1..377fb70 100755
--- a/bin/provision
+++ b/bin/provision
@@ -102,12 +102,29 @@ else
   $SUDO apt install -y r-cran-pdftools
 
   # As of 2024-08-16, this package is not available on Debian bookworm
-  $SUDO Rscript -e 'install.packages("eulerr")'
+  #$SUDO Rscript -e 'install.packages("eulerr")'
 
   # As of 2024-08-16, ggplot2 from Debian bookworm version is 3.4.1, whereas
   # some downstreams need functionality from 3.5.0 (specifically, the ability
   # to use 'theme(legend.position = "inside"' constructs.
   #
-  # Therefore we're currently installing a ggplot2 version from CRAN.
-  $SUDO Rscript -e 'install.packages("ggplot2")'
+  # The workaround was to install ggplot2 version from CRAN.
+  #
+  # This issue was fixed with Debian trixie, so ggplot2 is not needed anymore
+  # as of 2026-01-31 (it was removed from the test environment using the
+  # following command:
+  #
+  #   sudo Rscript -e 'remove.packages("ggplot2")'
+  #
+  # In fact, using ggplot2 from CRAN with the other packages from Debian
+  # leads to this error:
+  #
+  # > library(ggplot2)
+  # > ggplot(mpg, aes(displ, hwy, colour = class)) + geom_point()
+  # Error in ggplot(mpg, aes(displ, hwy, colour = class)) + geom_point() :
+  #   non-numeric argument to binary operator
+  # In addition: Warning message:
+  # Incompatible methods ("Ops.S7_object", "+.gg") for "+"
+  #
+  #$SUDO Rscript -e 'install.packages("ggplot2")'
 fi