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Re: Ghost Comments
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Re: Ghost Comments


  • Subject: Re: Ghost Comments
  • From: Axel Luttgens <email@hidden>
  • Date: Sat, 18 Feb 2012 11:14:01 +0100

Le 18 févr. 2012 à 00:46, Luther Fuller a écrit :

> While working on a script this afternoon, I noticed something that shouldn't happen.
> So, I wrote this quick test script (in 10.6.8) to discover what was happening ...
>
> [...]
>
> After the first run, you will have a folder "TEST" on your desktop.
> Get Info for this folder and enter some text in the comment field. Close Get Info.
>
> Now run this script again, and again, and ...
>
> Every time it runs, it displays the text you entered in the comment field.
> Yet the folder and presumably its comment have been deleted on each run.
>
> The fix is to use this:
> 	set newFolder to (make new folder at deskAlias with properties {name:"TEST", comment:""}) as alias
>
> Anyone have an explanation?

IIRC, starting with 10.4, those comments are stored as metadata.
But it seems that the Finder is somehow (and possibly somewhat erroneously) caching the info:

	tell application "Finder"
		if (exists folder "TEST" of desktop) then tell application "System Events" to delete folder "TEST" of desktop folder
		tell (make new folder at desktop with properties {name:"TEST"})
			comment of it
			--> "previously entered comment"
			it as alias
		end tell
	end tell
	do shell script "mdls -name kMDItemFinderComment " & quoted form of POSIX path of result
	--> "kMDItemFinderComment = (null)"

By setting the comment while creating the new folder, you are updating that cached info.
Alternatively, you may let the finder know what's happening instead of doing various things behind the scene:

	tell application "Finder"
		if (exists folder "TEST" of desktop) then delete folder "TEST" of desktop
		tell (make new folder at desktop with properties {name:"TEST"})
			comment of it
			--> ""
			it as alias
		end tell
	end tell
	do shell script "mdls -name kMDItemFinderComment " & quoted form of POSIX path of result
	--> "kMDItemFinderComment = (null)"

But I really don't know how the Finder caches such data; just restarting it isn't sufficient.

Axel


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  • Follow-Ups:
    • Re: Ghost Comments
      • From: Shane Stanley <email@hidden>
    • Re: Ghost Comments
      • From: Iurista GmbH <email@hidden>
References: 
 >Ghost Comments (From: Luther Fuller <email@hidden>)

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