Embed GitHub gist on your Tumblr

gist_on_tumblr.js

// REQUIRES:
//   http://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js
//   http://static.tumblr.com/fpifyru/VCxlv9xwi/writecapture.js
// Based on: https://gist.github.com/1395926
$(document).ready(function() {
    $('.gist').each(function(i) {
        var file_separator = $(this).text().indexOf('#');
        if (file_separator != -1) {
            var gist_url        = $(this).text().slice(0, file_separator);
            var gist_file       = $(this).text().slice(file_separator).replace("#file_", "?file=");
            var gist_script_src = gist_url + '.js' + gist_file;
            writeCapture.html(this, '<script src="'+gist_script_src+'"></script>');
        } else {
            writeCapture.html(this, '<script src="'+$(this).text()+'.js"></script>');
        }
    });
});

<!-- Add the following lines to theme's html code right before </head> -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
<script src="http://static.tumblr.com/fpifyru/VCxlv9xwi/writecapture.js"></script>
<script src="https://gist.github.com/raw/3656754/619d92a3b3153770cb350b113ac8d2c43fd2589f/gistfile1.js"></script>

<!--
  Usage: just add <div class="gist">[gist URL]</div>
  Example: <div class="gist">https://gist.github.com/1395926</div>
-->