update_chromium.sh

#!/bin/sh

#### CONFIG ################################
USE_OLD_ICON=true                          # replace the new simplified icon with the old one
APP_DESTINATION=/Applications/Chromium.app # where to put the app
SUPPORT_DIR="`dirname "$0"`/.support"      # where the icon and version number will be stored
############################################

VERSION_FILE="$SUPPORT_DIR/chromium_version"
NEWEST_VERSION=`curl -s http://commondatastorage.googleapis.com/chromium-browser-snapshots/Mac/LAST_CHANGE`
TMP_DIR="/tmp/chromium-$NEWEST_VERSION"
ZIP_FILE="$TMP_DIR.zip"
ZIP_URL="http://commondatastorage.googleapis.com/chromium-browser-snapshots/Mac/$NEWEST_VERSION/chrome-mac.zip"
TMP_APP="$TMP_DIR/chrome-mac/Chromium.app"
ICON_URL="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/app/theme/chromium/app.icns?revision=21431"
ICON_FILE="$SUPPORT_DIR/chromium.icns"

[[ -e "$VERSION_FILE" ]] && CURRENT_VERSION=`cat "$VERSION_FILE"`

[[ -z "$NEWEST_VERSION" ]] &&
	echo "Could not check for the newest version." &&
	exit 1

if [[ "$NEWEST_VERSION" -gt "$CURRENT_VERSION" ]]
then
	[[ ! -z "$CURRENT_VERSION" ]] &&
		echo "Current version is $CURRENT_VERSION."
	echo "Downloading newest version $NEWEST_VERSION..."
	echo
else
	echo "Newest version $CURRENT_VERSION already installed."
	exit
fi

curl -# -o "$ZIP_FILE" "$ZIP_URL";
echo

[[ ! -e $ZIP_FILE ]] &&
	echo "Could not download zip file." &&
	exit 1

echo "Unzipping..."
mkdir "$TMP_DIR"
unzip -q -o "$ZIP_FILE" -d "$TMP_DIR"

[[ ! -e "$TMP_APP" ]] &&
	echo "Could not find the app inside the zip." &&
	exit 1

if [[ $USE_OLD_ICON = true ]]
then
	echo "Applying old icon..."
	[[ ! -e "$ICON_FILE" ]] &&
		curl -s -o "$ICON_FILE" "$ICON_URL"
	if [[ -e "$ICON_FILE" ]]
	then
		cp "$ICON_FILE" "$TMP_APP/Contents/Resources/app.icns"
	else
		echo "Could not apply icon."
	fi
fi

APP_RUNNING=`ps ux | grep "$APP_DESTINATION/Contents/MacOS/Chromium" | sed '/grep/d'`
if [[ ! -z "$APP_RUNNING" ]]
then
	while true; do
		read -p "Chromium is currently running. Do you wish to continue?" yn
		case $yn in
			* ) break;;
		esac
	done
fi

echo "Copying to destination..."
killall Chromium 2> /dev/null
rm -rf "$APP_DESTINATION"
mv "$TMP_APP" "$APP_DESTINATION"

echo "Cleaning up..."
rm -rf "$TMP_DIR" "$ZIP_FILE"

echo "$NEWEST_VERSION" > "$VERSION_FILE"

echo "Successfully updated to $NEWEST_VERSION."
open "$APP_DESTINATION"