Find a suitable swaynag alternative

[bernardassan]

References

• https://git.korhonen.cc/FunctionalHacker/dotfiles/src/branch/sway-systemd/home/.config/sway/conf.d/05-keybinds.conf
• https://git.korhonen.cc/FunctionalHacker/dotfiles/src/branch/sway-systemd/home/.config/sway/scripts/exit.sh
• https://git.korhonen.cc/FunctionalHacker/dotfiles/src/branch/sway-systemd/home/.config/sway/conf.d/04-workspaces.conf#L13

    fn swaynag(arena: mem.Allocator, comptime cmd: []const u8) void {
        var child: process.Child = .init(&.{
            "sh", "-c",
            \\cat <<EOF | fzf +s --tac
            \\
            ++ cmd ++
                \\EOF
                \\
        }, arena);
        child.stderr_behavior = .Pipe;
        child.stdin_behavior = .Pipe;
        child.stdout_behavior = .Pipe;

        const exec_status = child.spawnAndWait() catch unreachable;
        debug.assert(exec_status.Exited == 0);

        var stdout: std.ArrayList(u8) = .empty;
        var stderr: std.ArrayList(u8) = .empty;
        child.collectOutput(arena, &stdout, &stderr, 1024) catch unreachable;
        log.info("swaynag:output: {s}\n", .{stdout.items});
        log.info("swaynag:error: {s}\n", .{stderr.items});
    }