Icon? issue on Mac OS X

["J.Ryan Sobol" <js...@skitow.net>]

I've found an issue removing the Icon? file, which handles custom 
folder images in Mac OS X, from a revision.
	
$ svn remove Icon?
D         Icon

$ svn commit
subversion/libsvn_client/commit.c:765: (apr_err=135000)
svn: Commit failed (details follow):
subversion/libsvn_subr/subst.c:470: (apr_err=135000)

As a side note, I wasn't allowed to type a comment before the crash.

I'm running Mac OS 10.3, Subversion 1.1.2 for the client and the 
server, and tunneling the communication over ssh.

~ ryan ~


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Re: Icon? issue on Mac OS X

[Ryan Schmidt <su...@ryandesign.com>]

On 04.01.2005, at 14:49, Scott Palmer wrote:

> On Jan 3, 2005, at 5:57 PM, Ryan Schmidt wrote:
>
>> Hi Ryan. I'm not sure why you're getting errors, but maybe it's 
>> because the 5th character in the filename is ASCII 13, which is an 
>> unusual character to have in a filename.
>>
>> I don't think checking Icon[13] files into or out of a repository 
>> would be successful in any case, as these files are resource-fork 
>> based, not data-fork based. Since a repository is entirely data-fork 
>> based, this would not seem to be possible unless you first encoded 
>> the Icon[13] files into a data-fork-only representation, such as 
>> binhex. The same would apply to any other files that contain 
>> resources in the Mac-specific resource fork info that needs to be 
>> preserved.
>
> It depends.  .icns files are not resource-fork based.  I routinely 
> build the Mac version of my application on Windows.  It's a Java app, 
> but I package it in a Mac application bundle.   In OS X the trend is 
> to move away from resource forks, so none are required.

It's true that Mac OS X is moving away from resources, and that .icns 
files are data-fork-based. But these aren't .icns files; these are the 
custom icon files created by System 7.0 thru at least 10.3.7. These 
files are invisible, always have the 5-character-long name "Icon[13]" 
where "[13]" is the ASCII character 13 (the carriage return), and 
always contain icon resources with the ID -16455. These resources can 
be all or part of an icon family (ICN#, icl8, icl4, ics#, ics8, ics4) 
and/or an icon suite resource (icns). These files are and must be 
resource-fork based to be recognized by any version of Mac OS as custom 
icon files, even when created and/or used on Mac OS X. And as such, 
they can't go into a repository unencoded.


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Re: Icon? issue on Mac OS X

[Scott Palmer <sc...@2connected.org>]

On Jan 3, 2005, at 5:57 PM, Ryan Schmidt wrote:

> Hi Ryan. I'm not sure why you're getting errors, but maybe it's 
> because the 5th character in the filename is ASCII 13, which is an 
> unusual character to have in a filename.
>
> I don't think checking Icon[13] files into or out of a repository 
> would be successful in any case, as these files are resource-fork 
> based, not data-fork based. Since a repository is entirely data-fork 
> based, this would not seem to be possible unless you first encoded the 
> Icon[13] files into a data-fork-only representation, such as binhex. 
> The same would apply to any other files that contain resources in the 
> Mac-specific resource fork info that needs to be preserved.
>

It depends.  .icns files are not resource-fork based.  I routinely 
build the Mac version of my application on Windows.  It's a Java app, 
but I package it in a Mac application bundle.   In OS X the trend is to 
move away from resource forks, so none are required.

Scott


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Re: Icon? issue on Mac OS X

[Ryan Schmidt <su...@ryandesign.com>]

Hi Ryan. I'm not sure why you're getting errors, but maybe it's because 
the 5th character in the filename is ASCII 13, which is an unusual 
character to have in a filename.

I don't think checking Icon[13] files into or out of a repository would 
be successful in any case, as these files are resource-fork based, not 
data-fork based. Since a repository is entirely data-fork based, this 
would not seem to be possible unless you first encoded the Icon[13] 
files into a data-fork-only representation, such as binhex. The same 
would apply to any other files that contain resources in the 
Mac-specific resource fork info that needs to be preserved.

-Ryan


On 31.12.2004, at 02:52, J.Ryan Sobol wrote:

> I've found an issue removing the Icon? file, which handles custom 
> folder images in Mac OS X, from a revision.
> 	
> $ svn remove Icon?
> D         Icon
>
> $ svn commit
> subversion/libsvn_client/commit.c:765: (apr_err=135000)
> svn: Commit failed (details follow):
> subversion/libsvn_subr/subst.c:470: (apr_err=135000)
>
> As a side note, I wasn't allowed to type a comment before the crash.
>
> I'm running Mac OS 10.3, Subversion 1.1.2 for the client and the 
> server, and tunneling the communication over ssh.
>
> ~ ryan ~


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