binder: Install packages required for Jupyter to PDF convert (#714)

Per jupyter/nbconvert#1328, these are the
packages needed for Jupyter to be able to convert to PDF. Without it,
you get unfriendly errors like [this]
(2i2c-org/infrastructure#3188 (comment)).

Given that the binder image includes jupyter, and texlive is included in
the base, I hope it would be reasonable for the binder image to include
enough texlive packages for PDF conversion to work. Otherwise, it works
in RStudio but not in Jupyter.

---------

Co-authored-by: eitsupi <50911393+eitsupi@users.noreply.github.com>

NEWS.md

@@ -1,5 +1,17 @@
 # News
 
+## 2023-10
+
+### Changes in pre-built images
+
+- `rocker/binder` now includes necessary LaTeX packages to allow Jupyter Notebooks to be converted to PDF. ([#714](https://github.com/rocker-org/rocker-versioned2/pull/714))
+
+### Changes in rocker_scripts
+
+- `install_jupyter.sh` will now install TexLive if it is not installed, and add
+  additional LaTeX packages needed for Jupyter PDF conversion. This will increase
+  the build time and size of the final image in cases `install_jupyter.sh` is called.
+
 ## 2023-04
 
 ### Changes in pre-built images

scripts/install_jupyter.sh

@@ -36,6 +36,19 @@ install2.r --error --skipmissing --skipinstalled -n "$NCPUS" remotes
 R --quiet -e 'remotes::install_github("IRkernel/IRkernel@*release")'
 R --quiet -e 'IRkernel::installspec(user = FALSE)'
 
+# Install texlive if it has not already been installed
+if ! command -v tlmgr; then
+    # shellcheck source=/dev/null
+    source /rocker_scripts/install_texlive.sh
+fi
+
+# Install tex packages needed for Jupyter's nbconvert to work correctly & convert to PDF
+# Sourced from https://github.com/jupyter/nbconvert/issues/1328
+tlmgr install adjustbox caption collectbox enumitem environ eurosym etoolbox jknapltx parskip \
+    pdfcol pgf rsfs tcolorbox titling trimspaces ucs ulem upquote \
+    ltxcmds infwarerr iftex kvoptions kvsetkeys float geometry amsmath fontspec \
+    unicode-math fancyvrb grffile hyperref booktabs soul ec
+
 # Clean up
 rm -rf /var/lib/apt/lists/*
 rm -rf /tmp/downloaded_packages