install_texlive.sh

#!/bin/bash

# Mainly intended to work for CI
# Was forked from Zeste de Savoir:
# https://github.com/zestedesavoir/zds-site/blob/a16c5fc932b361cbee5c6e61b24167605e24cd8b/scripts/install_texlive.sh

LOCAL_PWD=$(dirname "$0")
EXTRA_PACKAGES=$(cat $LOCAL_PWD/packages)
EXTRA_PACKAGES_CACHE="$HOME/.texlive/extra_packages_cache.txt"

function install_texlive {
  touch $HOME/.cache_updated # Force cache upload after successful build

  if [[ $1 == "0" ]]; then # full install
      echo "Installing texlive to \$HOME/.texlive"
      rm -rf $HOME/.texlive
      TEXLIVE_PROFILE=$LOCAL_PWD/texlive.profile

      # Create install dir
      mkdir -p $HOME/.texlive/
      cp $TEXLIVE_PROFILE $HOME/.texlive/
      cd $HOME/.texlive/

      # Fix paths in profile (needs absolute paths)
      sed -i 's@\$HOME@'"$HOME"'@' texlive.profile

      # Download and run installer
      wget -O install-tl.tar.gz http://mirror.ctan.org/systems/texlive/tlnet/install-tl-unx.tar.gz
      tar xzf install-tl.tar.gz

      ./install-tl*/install-tl -profile texlive.profile
  fi

  # Install extra latex packages
  echo "Installing extra packages"
  $HOME/.texlive/bin/x86_64-linux/tlmgr update --self
  $HOME/.texlive/bin/x86_64-linux/tlmgr install $EXTRA_PACKAGES

  # Install tabu-fixed packages
  mkdir -p $HOME/.texlive/texmf-local/tex/latex/tabu
  wget -P $HOME/.texlive/texmf-local/tex/latex/tabu https://raw.githubusercontent.com/tabu-issues-for-future-maintainer/tabu/master/tabu.sty

  # save list of extra packages
  printf "$EXTRA_PACKAGES" > $EXTRA_PACKAGES_CACHE

  echo "Installation complete !"
}

if [[ -f $HOME/.texlive/bin/x86_64-linux/tlmgr ]]; then
  if [[ -f $EXTRA_PACKAGES_CACHE ]]; then
      if [[ $(cat $EXTRA_PACKAGES_CACHE) != $EXTRA_PACKAGES ]]; then
        echo "! found change in extra packages"
        install_texlive 1
      else
        echo "! no change detected: using cached texlive"
      fi
  else
    echo "! extra packages cache not found in $EXTRA_PACKAGES_CACHE"
    install_texlive 1
  fi
else
  echo "! previous installation not found"
  install_texlive 0
fi