Install latest compatible ChromeDriver on SemaphoreCI

install-chromedriver.sh

#!/bin/bash

set -e

INSTALLED_CHROME_VERSION=$(apt-cache policy google-chrome-stable | grep Installed | egrep -o '[[:digit:]]+' | head -n1)
CHROMEDRIVER_VERSION=$(curl https://chromedriver.storage.googleapis.com/LATEST_RELEASE_$INSTALLED_CHROME_VERSION)

# Download ChromeDriver into Semaphore's cached directory if it doesn't exist already
if ! [ -e $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION ]; then
  mkdir -p $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION
  cd $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION
  wget https://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_linux64.zip
  unzip chromedriver_linux64.zip
else
  cd $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION
fi

# Replace the installed version of ChromeDriver with the latest one
sudo cp chromedriver /usr/local/bin/chromedriver
sudo chown root:root /usr/local/bin/chromedriver
sudo chmod +x /usr/local/bin/chromedriver