Chromium Updater

chromium

#!/bin/bash -e

# Chromium cli wrapper

CHROMIUM_HOME=/Applications/Chromium.app/Contents
ROOT_URL=https://commondatastorage.googleapis.com/chromium-browser-continuous/Mac
DOWNLOAD_URL=https://download-chromium.appspot.com/dl/Mac

function chromium_current {
ack -A1 SCMRevision $CHROMIUM_HOME/Info.plist | ack '<string>(.+)</string>' --output '$1'
}

function chromium_etag {
grep ^ETag $CHROMIUM_HOME/LastHeaders | awk '{print $2}'
}

function chromium_latest {
curl -s $ROOT_URL/LAST_CHANGE
}

function chromium_quit {
osascript -e 'tell application "Chromium" to quit' 2>/dev/null
}


function chromium_update {
    # Based on http://tcrn.ch/zZYFNq
    DEST="/Applications/Chromium.app"
    TMP_ZIP="/tmp/chrome-mac.zip"
    TMP_HEAD="/tmp/LastHeaders"

    curl -Lo $TMP_ZIP -D $TMP_HEAD $DOWNLOAD_URL -H "If-None-Match: $(chromium_etag)"

    if [[ $(grep ^HTTP $TMP_HEAD) == *"304 Not Modified"* ]]; then
        echo "You're up-to-date!"
    else
        unzip -q /tmp/chrome-mac -d /tmp/

        chromium_quit

        if [ -d $DEST ]; then
            mv $DEST/ ~/.Trash/
        fi

        mv /tmp/chrome-mac/Chromium.app/ $DEST/
        mv $TMP_HEAD $CHROMIUM_HOME/
        rm -rf $TMP_ZIP /tmp/chrome-mac $TMP_HEAD
        open $DEST
    fi
}

case $1 in
    update) chromium_update;;
    version) chromium_current;;
    latest) chromium_latest;;
    etag) chromium_etag;;
    *) $CHROMIUM_HOME/MacOS/Chromium $@;;
esac