Zig

SFTP Sync Download Tree w/ Must-Match Directory Constraints

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Demonstrates how SFTP synchronize a directory tree in the download direction, but only entering directories matching a set of wildcard filenames.

Note: This example requires Chilkat v9.5.0.76 or greater.

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;

    const sftp = try chilkat.SFtp.init();
    defer sftp.deinit();

    success = if (sftp.connect("my-ssh-server.com", 22)) true else |_| false;
    if (success) {
        success = if (sftp.authenticatePw("mySshLogin", "mySshPassword")) true else |_| false;
    }

    if (success) {
        success = if (sftp.initializeSftp()) true else |_| false;
    }

    if (!success) {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    }

    // Possible synchronization modes are:
    // mode=0: Download all files
    // mode=1: Download all files that do not exist on the local filesystem.
    // mode=2: Download newer or non-existant files.
    // mode=3: Download only newer files. If a file does not already exist on the local filesystem, it is not downloaded from the server.
    // mode=5: Download only missing files or files with size differences.
    // mode=6: Same as mode 5, but also download newer files.

    // Only enter remote directories named either "data" or matching "x*"
    sftp.setSyncMustMatchDir("data; x*");

    // Imagine our remote directory tree has these files and directories:

    //     accentedLatin1.txt
    //     accentedUtf8.txt
    //     alice.key
    //     anter_cert.pem
    //     chiliPepper.gif
    //     helloWorld.pdf
    //     abc/chiliPepper.gif
    //     abc/ghk/
    //     data/chiliPepper.gif
    //     data/xyz/dkimHtmlBody.txt
    //     data/xyz/dkimVerifyTest.eml
    //     data/xyz/emailForCreateDsn.eml
    //     text/frenchUtf8.txt
    //     text/helloWorld.txt
    //     text/PolishEmailBody.txt
    //     text/something/

    const remote_dir = "syncDownloadTest/someDir";
    const local_dir = "qa_output";
    const mode = 0;
    const recursive = true;
    sftp.syncTreeDownload(remote_dir, local_dir, mode, recursive) catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    // The following files were downloaded:

    // accentedLatin1.txt
    // accentedUtf8.txt
    // alice.key
    // anter_cert.pem
    // chiliPepper.gif
    // helloWorld.pdf
    // data/chiliPepper.gif
    // data/xyz/dkimHtmlBody.txt
    // data/xyz/dkimVerifyTest.eml
    // data/xyz/emailForCreateDsn.eml

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