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(Node.js) Replace/Update a FIle in a .zipDemonstrates how to replace/update a file from a .zip. Note: This requires the entire .zip to be rewritten.
var os = require('os'); if (os.platform() == 'win32') { if (os.arch() == 'ia32') { var chilkat = require('@chilkat/ck-node21-win-ia32'); } else { var chilkat = require('@chilkat/ck-node21-win64'); } } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node21-arm'); } else if (os.arch() == 'x86') { var chilkat = require('@chilkat/ck-node21-linux32'); } else { var chilkat = require('@chilkat/ck-node21-linux64'); } } else if (os.platform() == 'darwin') { if (os.arch() == 'arm64') { var chilkat = require('@chilkat/ck-node21-mac-m1'); } else { var chilkat = require('@chilkat/ck-node21-macosx'); } } function chilkatExample() { // This requires the Chilkat Zip API to have been previously unlocked. // See Unlock Chilkat Zip for sample code. // First prepare a .zip and write it.. var zip = new chilkat.Zip(); var success; zip.NewZip("qa_output/abc.zip"); // Add some files.. // entry: ZipEntry var entry = zip.AppendString("a.txt","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"); entry = zip.AppendString("b.txt","bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"); entry = zip.AppendString("c.txt","cccccccccccccccccccccccccccccccccccc"); // Write to qa_output/abc.zip // This .zip contains three files: a.txt, b.txt, and c.txt success = zip.WriteZipAndClose(); // ------------------------------------------------------------------- // Open abc.zip, replace the content of the "b.txt" entry with something else, and re-write. var zip2 = new chilkat.Zip(); zip2.OpenZip("qa_output/abc.zip"); entry = zip2.GetEntryByName("b.txt"); entry.ReplaceString("This is the new content. bbbbbbbbbbbbbbbbbbbbbb","utf-8"); // Write the modified .zip back to "abc.zip" success = zip2.WriteZipAndClose(); console.log("success."); } chilkatExample(); |
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