tag:blogger.com,1999:blog-4136549864035170205.post-60236437840848169982007-06-25T16:25:00.000-07:002008-02-11T17:00:06.185-08:002008-02-11T17:00:06.185-08:00Automatically update to latest WebKit each night.<p>You like webkit. You want the latest WebKit installed fresh each night while you sleep. You've looked at NightShift and found that it lacked a certain simplicity. You came here.</p>
<p>Ok. We need a script to do the dirty work. Bash is fine:</p>
<p><pre><code>
#!/bin/bash
# coding: utf-8
# Update Webkit
# Alex Ross
function handle {
echo "An error occured!"
exit $?
}
trap handle ERR
APPLICATIONS="/Applications"
ORG='http://nightly.webkit.org'
LOCAL_REVISION=`cat /Applications/WebKit.app/Contents/Resources/VERSION`
LATEST_REVISION_PATH=`curl --silent $ORG | grep -o "/files/trunk/mac/WebKit-SVN-r[0-9]*.dmg" | head -n 1`
LATEST_REVISION=`echo \"$ORG+$LATEST_REVISION_PATH\" | grep -E '[0-9]{4,}' -io`
if [ $LOCAL_REVISION -eq $LATEST_REVISION ]; then
echo "Local WebKit r$LOCAL_REVISION is latest build, exiting." > /dev/console
exit
else
echo "Updating WebKit.app to r$LATEST_REVISION..." > /dev/console
fi
curl -sL $ORG$LATEST_REVISION_PATH > /tmp/latest-webkit-svn.dmg
hdiutil attach /tmp/latest-webkit-svn.dmg -mountpoint /tmp/latest-webkit-svn -quiet
osascript <<-APPLESCRIPT
tell application "Finder"
activate
set answer to display dialog "Would you like to update WebKit now? Your open Webkit and Drosera windows will close.
Updating automatically in 30 seconds…" with title "WebKit Updater" buttons {"No", "Yes"} default button {"Yes"} giving up after 30
if button returned of answer is "Yes" or button returned of answer is not "No" then
tell application "System Events"
if (name of processes) contains "WebKit" then quit application "WebKit" saving no
if (name of processes) contains "DroseraLauncher" then quit application "Drosera" saving no
end tell
end if
end tell
delay 0.25
tell application "System Events"
if (name of processes) does not contain "WebKit" and (name of processes) does not contain "DroseraLauncher" then
return 1
else
return 0
end if
end tell
APPLESCRIPT
rm -rf $APPLICATIONS/Drosera.app $APPLICATIONS/WebKit.app
cp -R /tmp/latest-webkit-svn/Drosera.app $APPLICATIONS/Drosera.app
cp -R /tmp/latest-webkit-svn/WebKit.app $APPLICATIONS/WebKit.app
hdiutil detach /tmp/latest-webkit-svn -quiet
rm /tmp/latest-webkit-svn.dmg
echo "Webkit is up-to-date." > /dev/console
</code></pre></p>
<p>Paste all this junk into a text file and save it to /Library/Scripts/update_webkit.sh.</p>
<p>We create a launch agent to run this script each morning at 4am. Open a blank text file and paste in this xml:</p>
<code><pre>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>UpdateWebKit</string>
<key>UserName</key>
<string>root</string>
<key>GroupName</key>
<string>wheel</string>
<key>ProgramArguments</key>
<array>
<string>/bin/sh</string>
<string>/Library/Scripts/update_webkit.sh</string>
</array>
<key>StartCalendarInterval</key>
<dict>
<key>Hour</key>
<integer>4</integer>
</dict>
</dict>
</plist>
</pre></code>
<p>That's it! You're done. Mmmm. I love the smell of fresh nightlies in the morning.</p>Alexhttp://www.blogger.com/profile/08423296523921081149noreply@blogger.com2