Zig

Add a Common Root Directory to ZIP Entries Using PathPrefix

See more Zip Examples

This example demonstrates how to use the PathPrefix property to prepend a common directory path to all entries added to a ZIP archive.

The PathPrefix value is prepended to the stored ZIP paths for subsequently added entries.

This is useful when:

• Creating ZIP archives that extract beneath a single root directory
• Packaging applications or projects into a named top-level folder
• Avoiding extraction directly into the current directory
• Organizing ZIP contents beneath a common parent directory

Suppose the local filesystem contains:

c:/MyProject/src/main.cpp
c:/MyProject/src/util.cpp
c:/MyProject/docs/readme.txt

And suppose the following code is executed:

zip.PathPrefix = "MyProject/";

Then the ZIP archive will contain:

MyProject/src/main.cpp
MyProject/src/util.cpp
MyProject/docs/readme.txt

Without a PathPrefix, the ZIP archive would instead contain:

src/main.cpp
src/util.cpp
docs/readme.txt

The PathPrefix is applied only to entries added after the property is set.

Zig

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

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

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

    // Create a new ZIP archive.
    zip.newZip("MyProject.zip") catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    // Prepend "MyProject/" to all subsequently added ZIP entries.
    //
    // This causes all files to extract beneath a top-level
    // directory named "MyProject".
    zip.setPathPrefix("MyProject/");

    // Recursively add project files.
    //
    // Because saveExtraPath = false, the stored ZIP paths
    // will normally begin with:
    //
    //     src/
    //     docs/
    //
    // But because PathPrefix = "MyProject/",
    // the final ZIP paths become:
    //
    //     MyProject/src/
    //     MyProject/docs/
    //
    const recurse = true;

    zip.appendFiles("c:/MyProject/*", recurse) catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    // Write the ZIP archive and close it.
    zip.writeZipAndClose() catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("ZIP archive created successfully.\n", .{});
}