[Diggory Laycock]

Getting Applications' Creator Codes - Bundled Apps vs. Single-file Apps.

Hi there, I'm trying to get the creator code for an App selected by the user.

So far I have attempted using an NSOpenPanel to select the App then use NSFileManager to get the HFSCreatorCode. See below:

- (IBAction)setProtocolInfo id)sender
{
int result;

NSDictionary *attributesDictionary;
CFStringRef theCreatorCode;

NSArray *fileTypes = [NSArray arrayWithObject:@"app"];
NSOpenPanel *oPanel = [NSOpenPanel openPanel];

[oPanel setAllowsMultipleSelection:NO];
result = [oPanel runModalForDirectory:nil file:nil types:fileTypes];
if (result == NSOKButton) {
NSArray *filesToOpen = [oPanel filenames];
int i, count = [filesToOpen count];
for (i=0; i<count; i++) {
NSString *aFile = [filesToOpen objectAtIndex:i];
NSLog(@"aFile: %@",aFile);
attributesDictionary=[theDefaultFileManager fileAttributesAtPath:aFile traverseLink:YES];
if (!attributesDictionary)
{
NSLog(@"Path is incorrect!");
}
else
{
NSLog (@"attributesDictionary: %@", attributesDictionary);

NSLog(@"theCreatorCode: %@",[attributesDictionary fileHFSCreatorCode] );
}

}
}

}

This is all fine for old-school apps that are contained within one file (e.g. many classic apps, Interarchy), however if the user chooses a bundled app (most apps) then the path aFile is a path to a directory (the .app bundle), and therefore has no creator code.

Should I be checking if aPath is actually a directory, and if so appending "contents/macos/WhateverTheAppNameIs" to get the actual executable file (and its HFSCreatorCode.)?

Surely there is a better way.

for an example of what is logged when choosing mail and interarchy see below:

2001-11-14 11:28:17.427 internetpref[415] aFile: /Applications/Mail.app
2001-11-14 11:28:17.476 internetpref[415] attributesDictionary: {
NSFileExtensionHidden = 1;
NSFileGroupOwnerAccountName = admin;
NSFileModificationDate = 2001-11-10 01:10:57 +0000;
NSFileOwnerAccountName = root;
NSFilePosixPermissions = 509;
NSFileReferenceCount = 3;
NSFileSize = 264;
NSFileSystemFileNumber = 24999;
NSFileSystemNumber = 234881034;
NSFileType = NSFileTypeDirectory;
}
2001-11-14 11:28:17.476 internetpref[415] theCreatorCode: (null)

vs:


2001-11-14 11:30:52.778 internetpref[422] aFile: /Applications/Interarchy 5.0.1/Interarchy 5.0.1
2001-11-14 11:30:52.804 internetpref[422] attributesDictionary: {
NSFileExtensionHidden = 0;
NSFileGroupOwnerAccountName = admin;
NSFileHFSCreatorCode = 1098015592;
NSFileHFSTypeCode = 1095782476;
NSFileModificationDate = 2001-09-14 18:28:13 +0100;
NSFileOwnerAccountName = diggory;
NSFilePosixPermissions = 511;
NSFileReferenceCount = 1;
NSFileSize = 1841368;
NSFileSystemFileNumber = 177994;
NSFileSystemNumber = 234881034;
NSFileType = NSFileTypeRegular;
}

Any hints? Digs.

[ 11-14-2001: Message edited by: Diggory Laycock ]

[ 11-14-2001: Message edited by: Diggory Laycock ]

[Diggory Laycock]

Why is it that I try to figure this out on my own for a couple of days - before bothering the good people of this forum.

Then as soon as I have posted the question I spot this:

"If you need to further determine if path is a package, use NSWorkspace's isFilePackageAtPath:."


which makes it easier to spot packages - but my question remains - should I append "contents/macos/TheAppName" to the path to get the actual app?

What if the user has changed the name of the App-bundle?

Digs

[Diggory Laycock]

OK I've worked it out:

Why is it that I always find the piece of documentation that's been hiding from me *just* after I post to these boards? Typical! At least it means I'm beginning to work things out for myself

if anyone is interested here is my code - it's to do with checking for bundles:

- (IBAction)setProtocolInfoid)sender
{
int result;

NSDictionary *attributesDictionary;

NSString *theCFBundleSignature;
NSNumber *theOldSchoolCreatorCode;
NSBundle *theAppBundle;

NSArray *fileTypes = [NSArray arrayWithObject:@"app"];
NSOpenPanel *oPanel = [NSOpenPanel openPanel];

[oPanel setAllowsMultipleSelection:NO];
result = [oPanel runModalForDirectory:nil file:nil types:fileTypes];
if (result == NSOKButton)
{
NSArray *filesToOpen = [oPanel filenames];
int i, count = [filesToOpen count];
for (i=0; i<count; i++)
{
NSString *aFile = [filesToOpen objectAtIndex:i];
NSLog(@"Path of chosen app (aFile): %@",aFile);

theAppBundle = [NSBundle bundleWithPath:aFile];
if (nil == theAppBundle)
// path leads to a monolithic app
{
attributesDictionary=[theDefaultFileManager fileAttributesAtPath:aFile traverseLink:YES];
if (!attributesDictionary)
{
// no file here.
NSLog(@"Path is incorrect! There is no executable file here.");
}
else
{
// Get the CreatorCode
theOldSchoolCreatorCode= [attributesDictionary objectForKey:@"NSFileHFSCreatorCode"];
NSLog (@"theOldSchoolCreatorCode %@", theOldSchoolCreatorCode);
}
} else
{
// path leads to a bundle
// Get the CFBundleSignature.
aFile = [theAppBundle executablePath];
NSLog(@"aFile is a path to a bundle. New path to executable (aFile): %@",aFile);
theCFBundleSignature=[[theAppBundle infoDictionary] objectForKey:@"CFBundleSignature"];
NSLog (@"The CFBundleSignature: %@", theCFBundleSignature);
}
} // for (i=0; i<count; i++) - looping thru chosen files
} // if (result == NSOKButton)
} // - (IBAction)setProtocolInfoid)sender