Download most recent Chromedriver and update version file

update.sh

#!/usr/bin/env bash

# Version
CHROMEDRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`

# Remove existing
rm chromedriver
rm chromedriver-mac
rm chromedriver.exe

# Need unzip and wget
if test ! $(which unzip) || test ! $(which wget); then
    # Should only need to install unzip, but checking both just in case
    if [[  "$(uname)" == "Linux" ]]; then

        # Update package list just in case
        sudo apt-get update

        # wget
        if test ! $(which wget); then
            echo "Installing wget..."
            sudo apt-get install -y wget
        fi

        # unzip
        if test ! $(which unzip); then
            echo "Installing unzip..."
            sudo apt-get install -y unzip
        fi

    fi

    # OS X needs homebrew to install wget and unzip
    if [[ "$(uname)" == "Darwin" ]]; then

        # Homebrew
        if test ! $(which brew); then
            echo "Installing Homebrew..."
            ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
        fi

        # wget
        if test ! $(which wget); then
            echo "Installing wget..."
            brew install wget
        fi

        # unzip
        if test ! $(which unzip); then
            echo "Installing unzip..."
            brew install unzip
        fi

    fi
fi

# OS X
echo "Downloading and extracting chromedriver-mac..."
wget -Nq http://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_mac64.zip
unzip chromedriver_mac64.zip
rm chromedriver_mac64.zip
echo "moving chromedriver to chromedriver-mac..."
mv -f chromedriver chromedriver-mac

# Linux
echo ""
echo "Downloading and extracting chromedriver..."
wget -Nq http://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_linux64.zip
unzip chromedriver_linux64.zip
rm chromedriver_linux64.zip

# Windows
echo ""
echo "Downloading and extracting chromedriver.exe..."
wget -Nq http://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_win32.zip
unzip chromedriver_win32.zip
rm chromedriver_win32.zip

# Display md5sums
echo ""
echo "md5sums are..."
md5sum chromedriver*

# Update driver-versions.txt
echo ""
echo "Updating driver-versions.txt..."
sed -i.bak '/chromedriver/d' driver-versions.txt && rm driver-versions.txt.bak
md5sum chromedriver* | awk -v v="$CHROMEDRIVER_VERSION" '{ printf "%-20s %-20s %-20s\n", $2, v, $1 }' >> driver-versions.txt

# Spit out version number
echo ""
echo "Sucesfully downloaded drivers for Chrome $CHROMEDRIVER_VERSION and updated driver-versions.txt."
echo "Please commit any changes and make a pull request."