[launchd-dev] launchd-dev Digest, Vol 41, Issue 5

[Richard Brown]

Per,
The method I use is to get the version number of the installed tool
and compare it against the version in the app bundle.
Since we know that SMJobBless installs the helper executable in
/Library/PrivilegedHelperTools, you can create the URL to
/Library/PrivilegedHelperTools/com.yourdomain.yourapp.helper and use
NSBundle's + bundleWithURL: method and then call - infoDictionary (or
similarly use CFBundleCopyInfoDictionaryForURL) to get the helper
tool's info dict.  You can then query the dictionary for its version,
and decide whether to prompt for blessing rights.
HTH,
Richard

On Mon, Nov 15, 2010 at 10:00,
<launchd-dev-request at lists.macosforge.org> wrote:
> From: Per Ejeklint <ejeklint at me.com>
> To: launchd-dev at lists.macosforge.org
> Date: Mon, 15 Nov 2010 11:21:07 +0100
> Subject: [launchd-dev] Not calling SMJobBless if not needed?
> This is slightly off-topic I guess but the expertise is definitely on this list. :)
>
> I'm using SMJobBless to install and update a launchd daemon from my app and it works like a charm. Only thing is that the user must authenticate at every launch of the app and not just when the provided daemon is actually newer than the running one. Is there a way work around this with ServiceManagement framework? Or another simple way? I'm new to this part of Mac OS X stuff, so I apologize if I'm posting to the wrong list.
>
> /Per