(Objective-C) Set Entry Filepath (in output Zip) when Zipping

Demonstrates how to set the path for the file entry within the .zip to something different than the path in the filesystem.

Note: This example requires Chilkat v11.0.0 or greater.

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#import <CkoZip.h>
#import <CkoZipEntry.h>

BOOL success = NO;

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

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

success = [zip NewZip: @"qa_output/zipA.zip"];

// When an absolute filepath is passed to AddFile, the path within the .zip
// will be one of two values:  (1) just the filename part if saveExtraPath is NO,
// or (2) the full absolute path, but made relative, if saveExtraPath is YES.
// (For example, "c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" made relative is 
// "ck2000/appData/UnitTest/qa_data/hamlet.xml")
BOOL saveExtraPath = NO;
success = [zip AddFile: @"c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" saveExtraPath: saveExtraPath];
if (success == NO) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// When a relative path is passed to AddFile, then saveExtraPath does not apply.
// For example, assume our current working directory is "c:/ck2000/appData/UnitTest".  The following
// call to AddFile creates an entry with the filepath "qa_data/hamlet.xml".
success = [zip AddFile: @"qa_data/hamlet.xml" saveExtraPath: saveExtraPath];
if (success == NO) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// Examine the entries
CkoZipEntry *entry = [[CkoZipEntry alloc] init];
int numEntries = [zip.NumEntries intValue];
int i = 0;
while (i < numEntries) {
    [zip EntryAt: [NSNumber numberWithInt: i] entry: entry];
    NSLog(@"%d%@%@",i,@": ",entry.FileName);
    i = i + 1;
}

// The output so far is:

// 	0: hamlet.xml
// 	1: qa_data/hamlet.xml

// If we write the .zip as-is, then the zip will have two entries
// with the filepaths as shown above.

// This writes "qa_output/zipA.zip"
success = [zip WriteZip];

// Now change the entry filepaths to whatever is desired.
success = [zip EntryOf: @"hamlet.xml" entry: entry];
if (success == NO) {
    NSLog(@"%@",@"entry not found");
    return;
}

entry.FileName = @"Shakespeare/Claudius1.xml";

success = [zip EntryOf: @"qa_data/hamlet.xml" entry: entry];
if (success == NO) {
    NSLog(@"%@",@"entry not found");
    return;
}

entry.FileName = @"Shakespeare/Claudius2.xml";

// Change the name of the .zip to be written and write again:
zip.FileName = @"qa_output/zipB.zip";
success = [zip WriteZipAndClose];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
}
else {
    NSLog(@"%@",@"Zip created!");
}

// Examine both zipA.zip and zipB.zip using 7zip (or another tool) to see the differences.