Install LaTeX (TeX Live) on Netlify

install-latex.sh

#!/bin/bash

if [ -w "/opt/build/cache" ]; then
  CACHE_FOLDER="/opt/build/cache"
else
  CACHE_FOLDER="$HOME/cache"
fi

TEXLIVEDIR="$CACHE_FOLDER/texlive"
export PATH="$PATH:$TEXLIVEDIR/bin/x86_64-linux"

if ! type pdflatex > /dev/null 2>&1 ; then
  echo "Installing TeX Live (pdflatex)"
  wget -q http://mirror.ctan.org/systems/texlive/tlnet/install-tl-unx.tar.gz
  mkdir -p texlive-installer "$TEXLIVEDIR"
  tar -xf install-tl-unx.tar.gz -C ./texlive-installer --strip 1
  printf '%s\n' "# Profile for TeX Live
selected_scheme scheme-full
TEXDIR $TEXLIVEDIR
TEXMFCONFIG \$TEXMFSYSCONFIG
TEXMFHOME \$TEXMFLOCAL
TEXMFLOCAL $TEXLIVEDIR/texmf-local
TEXMFSYSCONFIG $TEXLIVEDIR/texmf-config
TEXMFSYSVAR $TEXLIVEDIR/texmf-var
TEXMFVAR \$TEXMFSYSVAR
binary_x86_64-linux 1
tlpdbopt_install_docfiles 0
tlpdbopt_install_srcfiles 0" > ./netlify-texlive.profile
  ./texlive-installer/install-tl --profile ./netlify-texlive.profile
else
  echo "TeX Live already installed, proceeding."
fi

# You can now run your regular build command
$1

USAGE.md

Given yarn build being your regular build script,

netlify.toml:

[build]
  # Our default build command
  command = "./install-latex.sh 'yarn build'"

Any script run by yarn build will have the regular LaTeX executables available in PATH (pdflatex, etc.)