publish_post: How to check if WP post is newly Published or Edited?

Recently I had some issues with publish_post WordPress action hook. In my Twitter Goodies plugin I want to publish tweet to my twitter account ONLY when I publish new post but NOT every time when I edit it.

I figure out the solution for above problem and wanted to share with you guys.

1) Add publish_post action hook to your plugin

add_action('publish_post','your_function_name');
add_action('publish_page','your_function_name');

2) In your function add below if conditions to distinguish newly published post or edited post.
For Newly Published Post:

if (($get_post_info->post_status == 'publish' || $_POST['publish'] == 'Publish') && ($_POST['prev_status'] == 'draft' || $_POST['original_post_status'] == 'draft' || $_POST['original_post_status'] == 'auto-draft' || $_POST['prev_status'] == 'pending' || $_POST['original_post_status'] == 'pending' ) )

For Edited Post:

if ((( $_POST['originalaction'] == "editpost" ) && ( ( $_POST['prev_status'] == 'publish' ) || ($_POST['original_post_status'] == 'publish') ) ) && $get_post_info->post_status == 'publish')

Where, $get_post_info = get_post($post_id);

I hope above will help you. If you have any better solution or other way then please update here in comment section. It will help all of us in plugin development.