updatechromedriver.sh

#!/usr/bin/env bash

######################################################
# PURPOSE : Update Chrome Driver to Chrome browser  ##
# version.                                          ##
#                                                   ##
#                                                   ##
#                                                   ##
######################################################

declare -rx mkdir="/bin/mkdir"
declare -rx rm="/bin/rm"
declare -rx cut="/usr/bin/cut"
declare -rx which="/usr/bin/which"

CURL=$($which curl)
GOOGLECHROME=$(which google-chrome)
UNZIP=$($which unzip)
CHROMEDRIVERDIRECTORY=/opt/google/chrome
CHROMEDRIVERPATH=/opt/google/chrome/chromedriver
CHROMEDRIVERURL='https://chromedriver.storage.googleapis.com'


# Test Default chromedriver path /opt/google/chrome/
# if test ! -f "$CHROMEDRIVERPATH" 
# then
#     $mkdir -p $CHROMEDRIVERDIRECTORY
#     $CURL -o chromedriverlatest.zip $CHROMEDRIVERURL
#     $UNZIP chromedriverlatest.zip -d $CHROMEDRIVERDIRECTORY
#     $rm -f chromedriverlatest.zip
# fi

# Get Chrome browser version
CHROMEVERSION=$($GOOGLECHROME --version | $cut -d ' ' -f 3 | $cut -d '.' -f 1)
printf "Google chrome version : %s\n" "$CHROMEVERSION";

# Get Chrome driver version
CHROMEDRIVERVERSION=$($CHROMEDRIVERPATH --version | $cut -d ' ' -f 2 | $cut -d '.' -f 1)
printf "Chrome driver version : %s\n" "$CHROMEDRIVERVERSION"

# Compare Chrome driver version & Chrome browser version
if test "$CHROMEVERSION" != "$CHROMEDRIVERVERSION"
then
    printf "\x1b[1;31m The versions are different. \x1b[0m\n"
    printf "\x1b[1;33m Downloading...\x1b[0m"
    chromedriverlatest=$($CURL -s "$CHROMEDRIVERURL/LATEST_RELEASE")
    printf "\x1b[1;33m the lastest version of chrome driver: %s\x1b[0m\n" "$chromedriverlatest"
    $CURL -s -o chromedriverlatest.zip "$CHROMEDRIVERURL/$chromedriverlatest/chromedriver_linux64.zip"
    $UNZIP -o chromedriverlatest.zip -d $CHROMEDRIVERDIRECTORY
    $rm -f chromedriverlatest.zip
fi
printf "\x1b[1;92mVersions are equal. It's OK !\n \x1b[0m\n"