Zig Requires Chilkat v11.0.0+

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. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    var success: bool = false;

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

    const zip = try chilkat.Zip.init();
    defer zip.deinit();

    success = if (zip.newZip("qa_output/zipA.zip")) true else |_| false;

    // 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 false,
    // or (2) the full absolute path, but made relative, if saveExtraPath is true.
    // (For example, "c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" made relative is
    // "ck2000/appData/UnitTest/qa_data/hamlet.xml")
    const save_extra_path = false;
    success = if (zip.addFile("c:/ck2000/appData/UnitTest/qa_data/hamlet.xml", save_extra_path)) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        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 = if (zip.addFile("qa_data/hamlet.xml", save_extra_path)) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    }

    // Examine the entries
    const entry = try chilkat.ZipEntry.init();
    defer entry.deinit();
    const num_entries = zip.getNumEntries();
    var i: i32 = 0;
    while (i < num_entries) {
        zip.entryAt(i, entry) catch {};
        std.debug.print("{d}: {s}\n", .{ i, try entry.getFileName(alloc) });
        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 = if (zip.writeZip()) true else |_| false;

    // Now change the entry filepaths to whatever is desired.
    success = zip.entryOf("hamlet.xml", entry);
    if (!success) {
        std.debug.print("entry not found\n", .{});
        return;
    }

    entry.setFileName("Shakespeare/Claudius1.xml");

    success = zip.entryOf("qa_data/hamlet.xml", entry);
    if (!success) {
        std.debug.print("entry not found\n", .{});
        return;
    }

    entry.setFileName("Shakespeare/Claudius2.xml");

    // Change the name of the .zip to be written and write again:
    zip.setFileName("qa_output/zipB.zip");
    success = if (zip.writeZipAndClose()) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
    } else {
        std.debug.print("Zip created!\n", .{});
    }

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