On Saturday, March 15, 2014 9:59:33 PM UTC+1, [email protected] wrote:
>
> On Tue, Mar 11, 2014 at 12:10 PM, Casey Rodarmor 
> <[email protected]<javascript:>
> > wrote:
>
>> Hi there,
>>
>> I recently started using tup as an alternative to waf, and I'm very happy 
>> with it. However there is one issue: It seems to be incompatible with OS X 
>> resource forks.
>>
>> As part of a build step, I have to create and append to an object's 
>> resource fork, but that fails under tup. I think it's because the 
>> filesystem that tup instantiates for builds is not compatible with OS X 
>> resource forks and extended attributes. Is that correct, and is there any 
>> way to work around that?
>>
>>
> Hi Casey,
>
> Can you give an example Tupfile here? I've not used resource forks before, 
> so I'm not exactly sure what you're trying to do.
>
> Thanks!
> -Mike
>

Hi Mike,

The command looks like this:

: a.out |> cp a.out a.out.icon; Rez -append icon.rsrc -o a.out.icon |> 
a.out.icon

Rez is an OS X utility that modifies resource 
forks: http://en.wikipedia.org/wiki/Resource_fork

Resource forks are more trouble than they're worth, but they allow for 
storing structured data in a file. They're kind of a legacy thing, and 
since they need low-level support from the filesystem and utilities they 
cause horrible interoperability problems with other operating systems and 
non-resource fork aware tools.

In the command above, I'm appending a file containing an icon, in resource 
fork form, to a.out, so that it has a nice icon when I run it. The command 
succeeds on the command line, but fails when run in a tupfile, with the 
following output:

### /Applications/Xcode.app/Contents/Developer/usr/bin/Rez - SysError -54 
during create of "a.out.icon".
### /Applications/Xcode.app/Contents/Developer/usr/bin/Rez - Fatal error 
trying to open the resource file "a.out.icon" for writing.
Fatal Error!
### /Applications/Xcode.app/Contents/Developer/usr/bin/Rez - Fatal Error, 
can't recover.
### /Applications/Xcode.app/Contents/Developer/usr/bin/Rez - Since errors 
occurred, a.out.icon's resource fork was not completely updated.
### /Applications/Xcode.app/Contents/Developer/usr/bin/Rez - SysError -43 
during set file info.

My guess would be that the filesystem that tup creates isn't compatible 
with resource forks for some reason. This is probably not worth fixing at 
all if I'm the only person who's been bothered by it. A normal human being 
in this day and age of OS X would use application bundles to associate 
icons with executables.

Casey

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