chromium-update.sh

#!/bin/bash

# Installation directory - change this to a directory of your choice
# Please make sure the directory exists first, or the script won't work
INSTALLDIR=$HOME

# Development channel to use. 'dev', 'beta' or 'stable'. 'stable' does
# not appear to work.
USECHANNEL="beta"

CHECKINTERVAL=300

# Determine the architecture of the machine in use and set variables accordingly
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i686) ARCH=i686 ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ "$ARCH" = "i686" ]; then
  DIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  DIRSUFFIX="_x64"
else
  echo "The ARCH should be either i686 or x86_64. Exiting."
  exit
fi

if [ ! -f CHROMIUM_CURRENTBUILD ]; then
    echo "0" > CHROMIUM_CURRENTBUILD
fi

CURRENTBUILD=$(cat CHROMIUM_CURRENTBUILD)
echo $CURRENTBUILD

while :
do
    # Determine the build number of the latest build
    #LATESTBUILD=$(curl http://commondatastorage.googleapis.com/chromium-browser-continuous/Linux/LAST_CHANGE)
    curl http://omahaproxy.appspot.com/all?csv=1 > /tmp/chrome-omaha.csv

    while IFS=, read os chan curr_ver prev_ver curr_rdate prev_rdate base_trunk_rev branch_rev base_wk_rev true_branch wk_ver v8_ver
    do
        if [[ "$os" == "linux" && "$chan" == "$USECHANNEL" ]]; then
            LATESTBUILD=$base_trunk_rev
        fi
    done < /tmp/chrome-omaha.csv

    if [[ $CURRENTBUILD -ge $LATESTBUILD ]]; then
        sleep $CHECKINTERVAL
        continue # no need to update
    fi

#   notify-send -i appointment -u normal "Chromium can be updated" "Close Chromium and wait for a successful notification."

#   PID=`/sbin/pidof chrome`
#   echo $PID
#   while kill -0 $PID; do
#       sleep 1
#   done

    # The URL to download from
    CHROMEURL="http://commondatastorage.googleapis.com/chromium-browser-snapshots/Linux"$DIRSUFFIX/$LATESTBUILD/"chrome-linux.zip"

    cd $INSTALLDIR
    if [ -e chrome-linux.zip ]; then                    # Check to see if `chrome-linux.zip` already exists
            mv chrome-linux.zip chrome-linux.zip.old    # if it does, rename it to chrome-linux.zip.old as backup
    fi                                                  # in case the current build has problems
    wget -O chrome-linux.zip $CHROMEURL
    unzip -u -o ./chrome-linux.zip

    echo $LATESTBUILD > CHROMIUM_CURRENTBUILD
    CURRENTBUILD=$LATESTBUILD

#   notify-send -i appointment -u normal "Chromium was updated successfully" "You may safely restart Chromium."
    notify-send -i appointment -u normal "Chromium updated successfully" "Chromium was updated from $CURRENTBUILD to $LATESTBUILD."

    sleep $CHECKINTERVAL
done