Zig

Append Dir Tree to Existing Zip w/out Rewriting Entire Zip

See more Zip Examples

Demonstrates how to use the QuickAppend method to append a directory tree to an existing .zip archive. This method works by editing the existing .zip -- it does not rewrite or recompress the contents of the existing .zip. It is the fastest way to append additional files to a pre-existing large .zip archive. Zig

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

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

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

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

    // The NewZip method only initializes the Zip object -- it does
    // not create or write a .zip file.
    zip.newZip("notUsed.zip") catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    // Add a references to all files in a directory tree.
    // Note: this does not read or compress the file contents --
    // it simply adds file references to the zip object.
    const recurse = true;
    zip.appendFiles("c:/temp/abc123/*", recurse) catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    // Appends the contents of the zip object to the preExisting.zip
    // zip archive.  preExisting.zip is opened, and the files
    // referenced by this zip object are streamed in, compressed,
    // and appended to the end of the archive.
    zip.quickAppend("preExisting.zip") catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Success!\n", .{});

    // Note: Additional files, directory trees, or in-memory data
    // can be appended by calling AddFile, AppendFiles,
    // AddString, AddBd, AddSb, etc. multiple times.
    // Whatever files and/or in-memory data that are referenced by
    // this zip object will be appended to preExisting.zip when
    // QuickAppend is called.
}