Script to create a truly portable TinyTeX installation without accessing any URLs other than a CTAN repository. Useful to build TinyTeX in corporate environments with restricted internet access. Since I'm not good at Shell scripting, the error handling might not work as expected.

build-tinytex.sh

#!/bin/bash
set -u
set -e
set -o pipefail

# Adapted from https://github.com/yihui/tinytex/blob/master/tools/install-base.sh
# Creates a truly portable TinyTeX without accessing any URLs other than the CTAN repository
# Make sure that /usr/lib64/microsoft-r/3.3/lib64/R/etc/Renviron contains http_proxy,
# https_proxy and ftp_proxy (or adjust the script accordingly)

TLREPO=ftp://ftp.rrze.uni-erlangen.de/ctan/systems/texlive/tlnet
TINYTEX_DIR="${PWD}/build/tinytex"
PACKAGES_FILE=${1:-tinytex-packages.txt}

fail() {
  echo $1
  exit 1;
}

extract_variable_from_renviron() {
  renviron="/usr/lib64/microsoft-r/3.3/lib64/R/etc/Renviron"
  grep -oP "${1} *= *\K.*" "${renviron}"
}

prepare_variables() {
  export http_proxy=$(extract_variable_from_renviron http_proxy)
  [ -n "${http_proxy}" ] || fail "Could not extract http_proxy from Renviron"

  export https_proxy=$(extract_variable_from_renviron https_proxy)
  [ -n "${https_proxy}" ] || fail "Could not extract http_proxy from Renviron"

  export ftp_proxy=$(extract_variable_from_renviron ftp_proxy)
  [ -n "${ftp_proxy}" ] || fail "Could not extract http_proxy from Renviron"

  TLURL="${TLREPO}/install-tl-unx.tar.gz"

  if [ $(uname) = 'Darwin' ]; then
    TEXDIR=${TINYTEX_DIR:-~/Library/TinyTeX}
  else
    TEXDIR=${TINYTEX_DIR:-~/.TinyTeX}
  fi
}

remove_existing_files() {
  rm -f install-tl-unx.tar.gz tinytex.profile
}

create_rprofile() {
  if [ ! $(grep libPaths ~/.Rprofile) ]; then
    echo ".libPaths('~/rstudiolibs')" >> ~/.Rprofile
    mkdir -p ~/rstudiolibs
  fi
}

create_tinytex_profile() {
  echo 'selected_scheme scheme-infraonly
TEXDIR ./

TEXMFSYSCONFIG ./texmf-config
TEXMFCONFIG $HOME/.TinyTeX/texmf-config

TEXMFLOCAL ./texmf-local
TEXMFHOME $HOME/.TinyTeX/texmf-home

TEXMFSYSVAR ./texmf-var
TEXMFVAR $HOME/.TinyTeX/texmf-var

option_doc 0
option_src 0
option_autobackup 0

portable 1
' > tinytex.profile
}

prepare_installation_file() {
  echo "Downloading ${TLURL} to ${PWD} ..."
  if [ $(uname) = 'Darwin' ]; then
    curl -LO $TLURL || fail "Could not download ${TLURL}"
  else
    wget -nv $TLURL || fail "Could not download ${TLURL}"
  fi
  tar -xzf install-tl-unx.tar.gz || fail "Could not unpack install-tl-unx.tar.gz"
  rm install-tl-unx.tar.gz || fail "Could not delete install-tl-unx.tar.gz"
}

install_texlive() {
  mkdir texlive
  pushd texlive
  TEXLIVE_INSTALL_ENV_NOCHECK=true TEXLIVE_INSTALL_NO_WELCOME=true ../install-tl-*/install-tl -no-gui -profile=../tinytex.profile -repository $TLREPO
  echo "Cleaning up setup files"
  rm -r ../install-tl-* ../tinytex.profile install-tl.log || fail "Could not clean up setup files"

  pushd bin/* || fail "Could not change to directory bin/*"

  echo "Setting repository to ${TLREPO}"
  ./tlmgr option repository "$TLREPO" || fail "Could not set repository to ${TLREPO}"
  ./tlmgr update --list || fail "Repository is not accessible"

  echo "Installing latex-bin, luatex, xetex"
  ./tlmgr install latex-bin luatex xetex || fail "Could not install latex-bin, luatex, xetex"

  popd; popd;

  [[ -n "${TEXDIR}" ]] || fail "TEXDIR must not be empty"
  [[ "${TEXDIR}" != "/" ]] || fail "TEXDIR must not be /"

  echo "Removing ${TEXDIR}"
  rm -rf "${TEXDIR}" || fail "Could not delete ${TEXDIR}"

  echo "Creating ${TEXDIR}"
  mkdir -p "${TEXDIR}" || fail "Could not create ${TEXDIR}"

  echo "Moving files from texlive/* to ${TEXDIR}"
  mv texlive/* "${TEXDIR}" || fail "Could not move texlive files to ${TEXDIR}"

  echo "Removing directory 'texlive'"
  rm -r texlive || fail "Could not delete texlive"
}

install_custom_packages() {
  echo "Installing custom packages from ${PACKAGES_FILE}"
  "${TEXDIR}"/bin/*/tlmgr install $(cat ${PACKAGES_FILE}) | tr '\n' ' ' || fail "Could not install custom packages"
}

prepare_variables
remove_existing_files
create_rprofile
create_tinytex_profile
prepare_installation_file
install_texlive
install_custom_packages

echo "Finished"

gistfile2.txt

buildscript {
  repositories {
    maven { url "https://nexus.example.com/content/groups/public" }
  }
  dependencies {
    classpath "com.netflix.nebula:gradle-ospackage-plugin:6.2.1"
  }
}

apply plugin: 'base'
apply plugin: 'maven-publish'
apply plugin: "nebula.rpm"

group = 'com.example'
// Version has to be passed at build time from command line
version = "${version}"

task rpm(type: Rpm) {
  group 'build'

  release '1'
  arch X86_64
  os LINUX

  postInstall file('src/main/sh/postInstall.sh')

  into '/opt/tinytex'

  from('build/tinytex') {
    into '.'
  }

  user 'tinytex'
  permissionGroup 'tinytex'
}

assemble.dependsOn rpm

artifacts {
  archives rpm
}

publishing {
  repositories {
    maven {
      url "https://nexus.example.com/content/repositories/${project.version.endsWith('-SNAPSHOT') ? 'snapshots' : 'releases'}"
      credentials(PasswordCredentials) {
        username System.env.NEXUS_USER
        password System.env.NEXUS_PASS
      }
    }
  }
  publications {
    tinytex(MavenPublication) {
      artifactId = 'custom-tinytex'
      artifact rpm
    }
  }
}

tinytex-packages.txt

amscls
amsfonts
amsmath
bibtex
booktabs
caption
dvipdfmx
dvips
ec
etoolbox
fancyvrb
float
fontspec
framed
geometry
graphics
graphics-def
gsftopk
helvetic
hyperref
ifluatex
ifxetex
inconsolata
latexmk
lm
luaotfload
makeindex
mathspec
metafont
mfware
natbib
oberdiek
tex
times
titling
tools
upquote
url
xkeyval
zapfding