(Node.js) Create Zip Excluding Files Matching Patterns

How to create a .zip archive excluding (skipping) files that match a set of wildcarded patterns.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

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

    var zip = new chilkat.Zip();

    var success = zip.NewZip("test.zip");
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // Create a string array object with our set of filename patterns
    // to be excluded:
    var sa = new chilkat.StringArray();
    success = sa.Append("*.bak");
    success = sa.Append("*.tmp");

    // Tell the zip object to use these exclusions:
    zip.SetExclusions(sa);

    // Append a directory tree.  The AppendFiles does
    // not read the file contents or append them to the zip
    // object in memory.  It simply appends references
    // to the files so that when WriteZip (or WriteZipAndClose,
    // or WriteExe, etc.) is called, the files are compressed
    // and encrypted.
    var recurse = true;
    success = zip.AppendFiles("/temp/a/*",recurse);

    var success = zip.WriteZipAndClose();
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    console.log("Zip Created!");

}

chilkatExample();