LinuxQuestions.org

#!/bin/bash
get()
{
    wget http://build.chromium.org/f/chromium/snapshots/Linux/$1/chrome-linux.zip 2>&1 | sed -u 's/.*\ \([0-9]\+%\)\ \+\([0-9.]\+\ [KMB\/s]\+\)$/\1\n# Downloading \2/' | zenity --progress --pulsate --text="Downloading..." &
    RUNNING=0
    while [ $RUNNING -eq 0 ]
    do
    if [ -z "$(pidof zenity)" ]
    then
    pkill wget
    RUNNING=1
    fi
    done
}
menu()
{
    latest=$(curl -s http://build.chromium.org/f/chromium/snapshots/Linux/LATEST)
    yad --title="Chromium Update" --image="gtk-info" \
    --text="Chromium build $latest is the lastest \ndevelopment snapshot build.\n\nContinue to download and unpack?\n" \
    --button="View Changelog:0" --button="No:1" --button="Yes:2"
}
if [ -f "chrome-linux.zip" ] ; then
    rm chrome-linux.zip
fi
menu
case $? in
    "0"*) curl -s http://build.chromium.org/f/chromium/snapshots/Linux/$latest/changelog.xml --output chromium_changelog.xml && yad --width=450 --height=600 --button="OK:0" --text-info --filename=chromium_changelog.xml && rm chromium_changelog.xml && menu ;;
    "1"*) exit ;;
    "2"*) get $latest
        if [ $? -eq 0 ] ; then
            unzip -o chrome-linux.zip -d $HOME/.chromium_latest_snapshot/
            if [ $? -eq 0 ] ; then
                yad --title="Chromium Update" --image="gtk-apply" --text="<b>\nChromium build $latest installed.    </b>" \
                --button="OK:0"
                mv chrome-linux.zip chrome-linux_$latest.zip
            else
                yad --title="Chromium Update" --image="gtk-dialog-error" --text="<b>\nSomething went wrong!    </b>" \
                --button="OK:0"
            fi
        fi ;;
esac