[Adium-devl] Let's abandon disk images

[Peter Hosey]

On Apr 09, 2007, at 18:24:28, Peter Hosey wrote:
> On Apr 09, 2007, at 18:22:31, Augie Fackler wrote:
>> … we should make sure to not simply assume "oh, I'm on a disk  
>> image, the user is wrong."
>
> Yup. We need to look for *our* disk image specifically.

Paul Kim blogged about the warning-when-running-from-a-disk-image idea:

http://www.noodlesoft.com/blog/2007/04/15/a-modest-proposal-a-new-way- 
to-install

(Presumably the topic made its way from here to #macsb, which got him  
on the subject.)

Two solutions come up in the comments. One was previously suggested  
here by samsamoa:

> - Put a file inside of the disk image that can identify it as ours.  
> (If it exists at Adium.app's level, then we need to copy ourself.)
>
> - When Adium launches, check to see if that file exists. If so, do  
> the whole dialogue thing, copy Adium (somehow figure out copying  
> permissions, too)

Brian Webster suggests the same thing.

Tom Harrington brings up a much more interesting idea:

> Depending on needs, you might want to consider using Rainer  
> Brockerhoff’s new and excellent PathProps code (http:// 
> www.brockerhoff.net/src/index.html). This gives you a new category  
> on NSWorkspace which adds a method that will tell you all kinds of  
> interesting details about a given path, based on IOKit lookups.  
> This could be used to specifically determine if you’re on a disk  
> image, without resort to hacks like including hidden files or the  
> potential errors of checking the path to your bundle and making  
> assumptions based on that. It’ll even give you the full path to the  
> disk image file that the image was mounted from.

Reading the description on Brockerhoff's page, it looks like it came  
from the same discussion. And it works for me:

{
     "NSWorkspace_RBconnectiontype" = "Virtual Interface";
     "NSWorkspace_RBdeviceinfo" = "Disk Image; 10.4.9v114.9; Apple";
     "NSWorkspace_RBfstypename" = hfs;
     "NSWorkspace_RBimagefilepath" = "/Users/prh/Disk Images/ 
Adium_1.0.2.dmg";
     "NSWorkspace_RBmntfromname" = "/dev/disk4s2";
     "NSWorkspace_RBmntonname" = "/Volumes/Adium X 1.0.2";
     "NSWorkspace_RBpartitionscheme" = "Apple_partition_scheme";
}

We could use this by getting info on the main bundle, and if it has  
NSWorkspace_RBimagefilepath and that key's value ends with / 
Adium_*.dmg, then we are running from the disk image.
___________________________________
\ Peter Hosey / boredzo at adiumx.com
PGP public key ID: C6550423 (since 2007-01-01)


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