Re: Recursive search for files
Re: Recursive search for files
- Subject: Re: Recursive search for files
- From: James Merkel <email@hidden>
- Date: Wed, 25 May 2011 19:34:13 -0700
On Wed, 25 May 2011 08:52:31 ronald b. kopelman wrote:
On May 22, 2011, at 11:52 AM, James Merkel wrote:
I would like to add a capability to an application to search
directories and sub-directories eventually opening all image files
(basically using NSDirectoryEnumerator).
Obviously, I can't allow the user to start at say the volume level
and
do the search. However as far as I can tell, there is nothing in
NSOpenPanel for example that prevents the user from starting there. I
was trying to come up with a way to prevent the user from starting at
the wrong place. (Putting up an Alert that says you can't start
there). There's a method in the NSFileManager class called
isDeletableFileAtPath. I am thinking that all of those volumes and
higher level directories that I want to avoid are not deletable.
Therefore I could use this as a filter. The only other approach might
be to limit the search to a certain depth (maybe 10 or 20
directories). However that seems kind of mickey-mouse. Should I be
looking at the lower level File Manager Reference for some help here?
Has anyone come up with an approach for this?
I have done these types of searches. I could not figure out how to
set up the security stuff of entering passwords. You could try the
following which should not be too hard to code. I figure everyone
has the right to look at what they own so limit the searches by
starting them at the user's home file (/Users/"ownerName"). You
could test the file name for this "prefix" & proceed if the test
passes. You can use the NSString method "hasPrefix:" to do the test.
You can probably find the home directory, though I have not tried
this lately, by using Foundation functions. Try
NSHomeDirectoryForUser(NSUserName()) & see if this helps. Of course,
it won't help if you are looking at a flash drive! Good luck.
ronald b. kopelman
Security shouldn't be an issue -- this application is for home use only.
Allowing searches only of the home directory might be a reasonable
approach.
I should mention there is some source code that has been out there for
a while that does some of what I want to do, it's called "FolderSweep"
at
http://www.brockerhoff.net/src/. Might take a look at this a little
more.
Thanks,
Jim Merkel
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