browser-driver-installer/install_browser_drivers

#!/bin/bash

[[ "${BASH_SOURCE[0]}" != "$0" ]] && { echo "ERROR: this script must be executed by Bash, neither source'd nor executed by a different shell"; return 1; }

set -e
set -u

PACKAGE_DIR=$(dirname "$(realpath -e "${BASH_SOURCE[0]}")")

if [[ -v BROWSER_DRIVER_INSTALLER_CHROME_VERSION && -v BROWSER_DRIVER_INSTALLER_CHROMEDRIVER_PATH ]]; then
    node "${PACKAGE_DIR}"/index.js                                   \
        --browser-name Chrome                                        \
        --browser-version "$BROWSER_DRIVER_INSTALLER_CHROME_VERSION" \
        --target-path "$BROWSER_DRIVER_INSTALLER_CHROMEDRIVER_PATH"
else
    echo "One or both of the environment variables related to Chrome (BROWSER_DRIVER_INSTALLER_CHROME_VERSION are" \
         "BROWSER_DRIVER_INSTALLER_CHROMEDRIVER_PATH) are not set, skipping the installation for Chrome"
fi

if [[ -v BROWSER_DRIVER_INSTALLER_FIREFOX_VERSION && -v BROWSER_DRIVER_INSTALLER_GECKODRIVER_PATH ]]; then
    node "${PACKAGE_DIR}"/index.js                                    \
        --browser-name Firefox                                        \
        --browser-version "$BROWSER_DRIVER_INSTALLER_FIREFOX_VERSION" \
        --target-path "$BROWSER_DRIVER_INSTALLER_GECKODRIVER_PATH"
else
    echo "One or both of the environment variables related to Firefox (BROWSER_DRIVER_INSTALLER_FIREFOX_VERSION and" \
         "BROWSER_DRIVER_INSTALLER_GECKODRIVER_PATH) are not set, skipping the installation for Firefox"
fi