Re: Safe asynchronous file copies
Re: Safe asynchronous file copies
- Subject: Re: Safe asynchronous file copies
- From: King Chung Huang <email@hidden>
- Date: Sat, 17 Nov 2007 16:30:49 -0700
Use the FSCopyObject APIs. There's FSCopyObjectAsync and
FSPathCopyObjectAsync. It's how the Finder copies files.
King Chung Huang
Information Technologies
University of Calgary
On 17-Nov-07, at 3:04 PM, Dave Hersey wrote:
On Nov 17, 2007, at 3:25 PM, Pierre Bernard wrote:
Hi!
I am looking for a way to safely copy or move several files to a
single destination folder.
- Safe: I want it to check bevor overwriting existing files
- Smart: If I copy two files of the same name at the same time, I
want both files to exist at destination with their names suffixed
by a counter
- Asynchronous: No beachball, but a progress bar
- Support resource forks, attributes, ...
- Bonus: authentication if needed
I see no Cocoa API living up to the task. NSFileManager/NSWorkspace
only provide the building blocks. One would need to pour in quite
some effort to wrap them with the above features.
The Finder does all this and has an interface familiar to the user.
AppleScript might be the way to go. My AppleScript knowledge is
very limited. I am not actually sure the Finder exposes these
features to AppleScript. I don't even know how to pass a list of
file paths to Apple Script.
Is there a Carbon API to do this?
Has anyone else been down this road?
Pierre
There's no single API for doing what you're asking; you need to
write some code.
It's not particularly difficult, but you'll want to do some research
into available Cocoa frameworks, Carbon APIs and even system tools
like ditto. It's hard to say which would work best for your needs--
you may even want to use more than one. I believe that some of this
has been discussed on the Apple lists before, such as how to
determine progress during a file copy.
- d
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