Sync a Single FTP Directory Down to Local

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Demonstrates the Chilkat Ftp2.SyncLocalDir method, which synchronizes files from the current remote directory into a local directory without descending into subdirectories. The first argument is the local root and the second is the download mode.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

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

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

    // Demonstrates the Ftp2.SyncLocalDir method, which synchronizes files from the current remote
    // directory into a local directory WITHOUT descending into subdirectories.  The 1st argument is
    // the local root and the 2nd is the download mode.

    const ftp = try chilkat.Ftp2.init();
    defer ftp.deinit();

    ftp.setHostname("ftp.example.com");
    ftp.setUsername("myFtpLogin");

    // Normally you would not hard-code the password in source.  You should instead obtain it
    // from an interactive prompt, environment variable, or a secrets vault.
    ftp.setPassword("myPassword");

    ftp.connect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    ftp.changeRemoteDir("public_html") catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    // This is the single-directory (non-recursive) form of SyncLocalTree; it uses the same modes.
    //   0 = all selected files
    //   1 = files missing locally
    //   2 = missing locally, or newer on the server
    //   3 = only files that exist locally and are newer on the server
    //   5 = missing locally, or a different size
    //   6 = missing, different size, or newer on the server
    //  99 = do not download; delete local... (see docs)

    const mode = 2;
    ftp.syncLocalDir("qa_output/site", mode) catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Remote directory synced to local (top level only).\n", .{});

    ftp.disconnect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };
}