Re: @INC error when calling a perl script from NSTask

FROM : emoy
DATE : Thu Nov 21 22:50:01 2002

On Thursday, November 21, 2002, at 10:18  PM, Nick Kocharhook wrote:

> I have a perl script that I'm calling from an NSTask. The script
> requires some modules that aren't standard, so I have included them in
> the project. When I launch the NSTask, though, I get an @INC error
> complaining that it can't find the modules.
>
> Any ideas? TIA
>
> ====
> NSTask *task = [[NSTask alloc] init];
> NSPipe *pipe = [NSPipe pipe];
>
> NSString *thisBundlePath = [[NSBundle bundleForClass:[self class]]
>    bundlePath];
> NSString *getLinks = [NSString
>    stringWithFormat:@"%@/Contents/Resources/getLinks.pl",
>    thisBundlePath];
> NSString *perl = [NSString
>    stringWithFormat:@"-I\"%@/Contents/Resources/Perl\"",
>    thisBundlePath];
>
> [task setStandardInput:pipe];
> [task setLaunchPath:@"/usr/bin/perl"];
> [task setArguments:[NSArray arrayWithObjects:perl, getLinks]];
> [task launch];
> ====
>
> And now for the perl error:
>
> Can't locate HTML/TreeBuilder.pm in @INC (@INC contains:
> "/Users/nick/Development/TD/build/TD.app/Contents/Resources/Perl"
> /sw/lib/perl5/darwin /sw/lib/perl5 /sw/lib/perl5/darwin /sw/lib/perl5
> /System/Library/Perl/darwin /System/Library/Perl /Library/Perl/darwin
> /Library/Perl /Library/Perl /Network/Library/Perl/darwin
> /Network/Library/Perl /Network/Library/Perl .) at
> /Users/nick/Development/TD/build/TD.app/Contents/Resources/getLinks.pl
> line 3.


You don't want the extra double quotes:

NSString *perl = [NSString
    stringWithFormat:@"-I%@/Contents/Resources/Perl",
    thisBundlePath];

You might need the double quotes if you are passing arguments to the 
shell to run, but with NSTask, the arguments are passed directly to 
Perl, which can't find the path with double quotes in it.
------------------------------------------------------------------------
--
Edward Moy
Apple Computer, Inc.
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