(Objective-C) Controlling paths within a Zip

How to control the paths stored within a .zip.

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#import <CkoZip.h>

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoZip *zip = [[CkoZip alloc] init];

BOOL success;

// This is the directory structure on the local filesystem
// from which we'll create .zip archives:
// The root directory is /temp/filesToZip
// 
// We have these files:
// /temp/filesToZip/faxCover.doc
// /temp/filesToZip/exe/Setup.exe
// /temp/filesToZip/images/cheese.jpg
// /temp/filesToZip/images/dude.gif
// /temp/filesToZip/images/img3.gif
// /temp/filesToZip/images/img4.gif
// /temp/filesToZip/images/img5.gif
// /temp/filesToZip/images/scream.jpg
// /temp/filesToZip/images/imageInfo/scream.xml
// /temp/filesToZip/images/imageInfo/cheese.xml
// /temp/filesToZip/text/html/bonaireFishing.html
// /temp/filesToZip/text/html/upload.html
// /temp/filesToZip/text/txt/hello.txt
// /temp/filesToZip/text/txt/HelloWorld123.txt
// /temp/filesToZip/text/xml/hamlet.xml
// /temp/filesToZip/text/xml/pigs.xml

// There are three properties to help control the paths stored
// within a .zip:
// AppendFromDir
// PathPrefix
// DiscardPaths
// 

// First we'll demonstrate AppendFromDir
// When a directory tree is appended via AppendFiles or
// AppendFilesEx, the AppendFromDir sets the base of the 
// directory tree appended (if the file pattern contains a 
// relative path, or no path at all).

// Clear the zip object.
[zip NewZip: @"test1.zip"];

BOOL recurse = YES;

zip.AppendFromDir = @"/temp/filesToZip";
success = [zip AppendFiles: @"*.xml" recurse: recurse];

// The zip will contain:
// images/imageInfo/scream.xml
// images/imageInfo/cheese.xml
// text/xml/hamlet.xml
// text/xml/pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// Clear the zip object.
success = [zip NewZip: @"test2.zip"];

zip.AppendFromDir = @"/temp/filesToZip/images";
success = [zip AppendFiles: @"*.xml" recurse: recurse];
zip.AppendFromDir = @"/temp/filesToZip/text";
success = [zip AppendFiles: @"*.xml" recurse: recurse];

// The zip will contain:
// imageInfo/scream.xml
// imageInfo/cheese.xml
// xml/hamlet.xml
// xml/pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// The PathPrefix property adds an arbitrary path prefix to each
// file in the .zip.
// For example:

// Clear the zip object.
success = [zip NewZip: @"test3.zip"];

zip.PathPrefix = @"chilkat/";

zip.AppendFromDir = @"/temp/filesToZip/images";
success = [zip AppendFiles: @"*.xml" recurse: recurse];
zip.AppendFromDir = @"/temp/filesToZip/text";
success = [zip AppendFiles: @"*.xml" recurse: recurse];

// The zip will contain:
// chilkat/imageInfo/scream.xml
// chilkat/imageInfo/cheese.xml
// chilkat/xml/hamlet.xml
// chilkat/xml/pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// The DiscardPaths property removes the path from each file
// in the zip:
// For example:

// Clear the zip object.
success = [zip NewZip: @"test4.zip"];

zip.PathPrefix = @"";
zip.DiscardPaths = YES;

zip.AppendFromDir = @"/temp/filesToZip/";
success = [zip AppendFiles: @"*" recurse: recurse];

// The zip will contain:
// faxCover.doc
// Setup.exe
// cheese.jpg
// dude.gif
// img3.gif
// img4.gif
// img5.gif
// scream.jpg
// scream.xml
// cheese.xml
// bonaireFishing.html
// upload.html
// hello.txt
// HelloWorld123.txt
// hamlet.xml
// pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// You can combine PathPrefix with DiscardPaths:

// Clear the zip object.
success = [zip NewZip: @"test5.zip"];

zip.PathPrefix = @"chilkat/";
zip.DiscardPaths = YES;

zip.AppendFromDir = @"/temp/filesToZip/";
success = [zip AppendFiles: @"*" recurse: recurse];

// The zip will contain:
// chilkat/faxCover.doc
// chilkat/Setup.exe
// chilkat/cheese.jpg
// chilkat/dude.gif
// chilkat/img3.gif
// chilkat/img4.gif
// chilkat/img5.gif
// chilkat/scream.jpg
// chilkat/scream.xml
// chilkat/cheese.xml
// chilkat/bonaireFishing.html
// chilkat/upload.html
// chilkat/hello.txt
// chilkat/HelloWorld123.txt
// chilkat/hamlet.xml
// chilkat/pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// One last example -- combine DiscardPaths with PathPrefix
// with multiple calls to AppendFiles:

// Clear the zip object.
success = [zip NewZip: @"test6.zip"];

zip.DiscardPaths = YES;
zip.AppendFromDir = @"/temp/filesToZip/";

// Get all .gif files:
zip.PathPrefix = @"gif/";
success = [zip AppendFiles: @"*.gif" recurse: recurse];

// Get all .jpg files:
zip.PathPrefix = @"jpg/";
success = [zip AppendFiles: @"*.jpg" recurse: recurse];

// Get all .xml files:
zip.PathPrefix = @"xml/";
success = [zip AppendFiles: @"*.xml" recurse: recurse];

// The zip will contain:
// jpg/cheese.jpg
// gif/dude.gif
// gif/img3.gif
// gif/img4.gif
// gif/img5.gif
// jpg/scream.jpg
// xml/scream.xml
// xml/cheese.xml
// xml/hamlet.xml
// xml/pigs.xml

success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}