serveTarFile

pub fn serveTarFile(ws: *WebServer, request: *http.Server.Request, paths: []const Cache.Path) !void

File

Code

pub fn serveTarFile(ws: *WebServer, request: *http.Server.Request, paths: []const Cache.Path) !void {
    const graph = ws.graph;
    const io = graph.io;

    var send_buffer: [0x4000]u8 = undefined;
    var response = try request.respondStreaming(&send_buffer, .{
        .respond_options = .{
            .extra_headers = &.{
                .{ .name = "Content-Type", .value = "application/x-tar" },
                cache_control_header,
            },
        },
    });

    var archiver: std.tar.Writer = .{ .underlying_writer = &response.writer };

    for (paths) |path| {
        var file = path.root_dir.handle.openFile(io, path.sub_path, .{}) catch |err| {
            log.err("failed to open '{f}': {s}", .{ path, @errorName(err) });
            continue;
        };
        defer file.close(io);
        const stat = try file.stat(io);
        var read_buffer: [1024]u8 = undefined;
        var file_reader: Io.File.Reader = .initSize(file, io, &read_buffer, stat.size);

        archiver.prefix = path.root_dir.path orelse graph.cache.cwd;
        try archiver.writeFile(path.sub_path, &file_reader, @intCast(stat.mtime.toSeconds()));
    }

    // intentionally not calling `archiver.finishPedantically`
    try response.end();
}