setup-android-studio

#!/usr/bin/env bash

set -euo pipefail

cache_dir="${HOME}/.cache/scripts"
cache_dir_downloads="${cache_dir}/downloads"
android_studio_download_dir="${cache_dir_downloads}/android-studio"

android_sdk_dir="${HOME}/.local/share/android/sdk"
android_studio_ide_dir="${HOME}/.local/share/android/ide"

applications_shortcut_dir="${HOME}/.local/share/applications"

function remove_file_with_prompt() {
  local -r filepath="${1}"
  local -r removal_prompt="${2}"

  if [[ -e ${filepath} ]]; then
    if [[ -n ${removal_prompt} ]]; then
      echo "${removal_prompt}"
      read -rp "Remove file? ($(basename "${filepath}")) [yN]: " should_remove_file
      should_remove_file="${should_remove_file:-"n"}"
      if [[ "${should_remove_file}" = "y" ]]; then
        rm "${filepath}"
      fi
    else
      rm -f "${filepath}"
    fi
  fi
}

function download_file() {
  local -r fileurl="${1}"
  local -r filepath="${2}"

  echo "Downloading: ${fileurl}"
  wget --continue --quiet --show-progress --timestamping "${fileurl}" -O "${filepath}"
}

function validate_url() {
  local -r url="${1}"
  local -r url_pattern="${2}"

  echo "Validating url: ${url}"
  if [[ ! ${url} =~ ${url_pattern} ]]; then
    echo "Invalid IDE Archive url!"
    exit 1
  fi
}

function prepare_dirs() {
  mkdir -p "${android_studio_download_dir}" \
    "${android_sdk_dir}" \
    "${android_studio_ide_dir}"
}

function get_latest_ide_archive_url() {
  local -r source_url="https://developer.android.com/studio/index.html"
  local -r archive_url="$(curl -s "${source_url}" | grep 'a href=".*android-studio-ide-.*-linux.tar.gz"' | cut -d'"' -f 2)"
  echo "${archive_url}"
}

latest_ide_archive_url="$(get_latest_ide_archive_url)"
validate_url "${latest_ide_archive_url}" ^https?://.+/android-studio-ide-.+-linux.tar.gz$

latest_ide_archive_filename="$(basename "${latest_ide_archive_url}")"
latest_ide_archive_filepath="${android_studio_download_dir}/${latest_ide_archive_filename}"

function remove_old_ide_archives() {
  for ide_archive_filepath in "${android_studio_download_dir}"/android-studio-ide-*; do
    if [[ ! -e "${ide_archive_filepath}" ]]; then
      continue
    fi

    if [[ "${ide_archive_filepath}" != "${latest_ide_archive_filepath}" ]]; then
      remove_file_with_prompt "${ide_archive_filepath}" "Old IDE Archive exists!"
    fi
  done
}

function extract_ide_archive() {
  local -r ide_archive_filepath="${1}"

  echo "Extracting Android Studio IDE Archive..."
  tar --extract --gzip --transform 's|android-studio/|./|' --directory "${android_studio_ide_dir}"  --file "${ide_archive_filepath}"
}

function install_necessary_packages() {
  echo "Installing required libraries for 64-bit ubuntu..."
  sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1 libbz2-1.0:i386

  echo "Installing packages to enable hardware acceleration for the Android Emulator..."
  sudo apt-get install bridge-utils libvirt-clients libvirt-daemon-system qemu-kvm
}

function add_application_shortcut() {
  echo "Adding Application Shortcut..."
cat > "${applications_shortcut_dir}/android-studio.desktop" <<EOL
[Desktop Entry]
Name=Android Studio
Exec="${android_studio_ide_dir}/bin/studio.sh" %f
Icon=${android_studio_ide_dir}/bin/studio.png
Type=Application
Categories=Development;IDE;
Terminal=false
EOL
}

prepare_dirs
remove_old_ide_archives
remove_file_with_prompt "${latest_ide_archive_filepath}" "Latest IDE Archive already exists!"
download_file "${latest_ide_archive_url}" "${latest_ide_archive_filepath}"
extract_ide_archive "${latest_ide_archive_filepath}"
install_necessary_packages
add_application_shortcut