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Easy Post Meta fields class set – easy custom fields for WordPress

The SourceBench — Tue, 04 May 2010 07:56:40 +0000

If you ever needed to work with post meta fields and did not want to mess around with validation and all this stuff around it check out http://wordpress.org/extend/plugins/easy-custom-fields/ for a simple set of classes to build on.

Simple parallel processing with Bash using “wait” and “jobs”

The SourceBench — Mon, 01 Feb 2010 13:53:14 +0000

#!/bin/bash
# this is a simple helper script that can be used when you are in need of running multiple processes at once
# simply run your command with an ampersand at the end and after this
# execute forky with the number of parallel processes as argument.

function forky() {
	local num_par_procs
	if [[ -z $1 ]] ; then
		num_par_procs=3
	else
		num_par_procs=$1
	fi

	while [[ $(jobs | wc -l) -ge $num_par_procs ]] ; do
		sleep 1
	done
}

# below is an example - make sure to change this to your needs
for fname in `ls -1`; do
	echo "`jobs | wc -l` jobs in spool"
	echo -e "processing $fname\n"
	# below should be the command you like to execute. in this example it's a php script that would do something with a file.
	# important is the & at the end of the command which sends the command to the background
	php ~/a_script_that_does_something_with_the_file --file=$fname &
	# after this call the forky function with the amount of parallel processes as parameter
	forky 5
done

wait

Test if a nameserver change is done right

The SourceBench — Tue, 19 Jan 2010 23:52:28 +0000

# imagine you just updated your whois data so it will point your domain to an other nameserver and you want to know if that worked out
# this little command lets you know on *nix based machines
for i in a b c d e f g h i j k l; do dig +short ns domainname.com @$i.GTLD-SERVERS.NET; done

Disable right click context menus with jQuery

The SourceBench — Mon, 21 Dec 2009 14:47:34 +0000

$(document).ready(function(){
  $(document).bind("contextmenu",function(e){
    return false;
  });
});

command line real-time view of what files Time Machine is copying

The SourceBench — Wed, 09 Dec 2009 09:15:51 +0000

sudo fs_usage -w -f filesys backupd | grep open

Print the number of established and listening connections to your server on port 80 per each IP address

The SourceBench — Sun, 06 Dec 2009 23:49:27 +0000

netstat -plan|grep :80|grep -E "(EST|LIST)"|awk {'print $5'}|cut -d: -f 1|sort|uniq -c|sort -nk 1

Automatically insert meta description tag into posts/pages.

The SourceBench — Sun, 06 Dec 2009 09:49:04 +0000

 10, 'length_unit' => 'char|word', 'use_excerpt' => true, 'add_category_desc' => true, 'add_tag_desc' => true, 'add_other_desc' => true, 'default_description' => '', 'custom_field_key' => '' );
 * }
 * add_filter( 'meta_desc_settings', 'set_meta_desc_settings' );
 * add_action( 'wp_head', 'meta_desc' );
 *
 * @author Thorsten Ott
 */
function meta_desc() {
	$default_settings = array(
								'length' => 25, // amount of length units to use for the meta description
								'length_unit' => 'word', // the length unit can be either "word" or "char"
								'use_excerpt' => true, // if the post/page has an excerpt it will overwrite the generated description if this is set to true
								'add_category_desc' => true, // add the category description to category views if this value is true
								'add_tag_desc' => true, // add the category description to category views if this value is true
								'add_other_desc' => true, // add the blog description/tagline to all other pages if this value is true
								'default_description' => '', // in case no description is defined use this as a default description
								'custom_field_key' => '', // if a custom field key is set we try to use the value of this field as description
								);

	$settings = apply_filters( 'meta_desc_settings', $default_settings );

	extract( shortcode_atts( $default_settings, $settings ) );

	global $wp_query;

	if( is_single() || is_page() ) {
		$post = $wp_query->post;

		// check for a custom field holding a description
		if ( !empty( $custom_field_key ) ) {
			$post_custom = get_post_custom_values( $custom_field_key, $post->ID );
			if ( !empty( $post_custom ) )
				$text = $post_custom[0];
		}
		// check for an excerpt we can use
		else if( $use_excerpt && !empty( $post->post_excerpt ) ) {
			$text = $post->post_excerpt;
		}
		// otherwise use the content
		else {
			$text = $post->post_content;
		}

		$text = str_replace( array( "\r\n", "\r", "\n", "  " ), " ", $text ); // get rid of all line breaks
		$text = strip_shortcodes( $text ); // make sure to get rid of shortcodes
		$text = apply_filters( 'the_content', $text ); // make sure it's save
		$text = trim( strip_tags( $text ) ); // get rid of tags and html fragments
		if ( empty( $text ) && !empty( $default_description ) )
			$text = $default_description;	

	} else if( is_category() && true == $add_category_desc ) {
		$category = $wp_query->get_queried_object();
		$text = trim( strip_tags( $category->category_description ) );
		if ( empty( $text ) && !empty( $default_description ) )
			$text = $default_description;

	} else if( is_tag() && true == $add_tag_desc ) {
		$tag = $wp_query->get_queried_object();
		$text = trim( strip_tags( $tag->description ) );
		if ( empty( $text ) && !empty( $default_description ) )
			$text = $default_description;

	} else if ( true == $add_other_desc ) {
		$text = trim( strip_tags( get_bloginfo('description') ) );
		if ( empty( $text ) && !empty( $default_description ) )
			$text = $default_description;
	}

	if ( empty( $text ) )
		return;

	if ( 'word' == $length_unit ) {
		$words = explode(' ', $text, $length + 1);
		if ( count( $words ) > $length ) {
			array_pop( $words );
			array_push( $words, '...' );
			$text = implode( ' ', $words );
		}
	} else {
		if ( strlen( $text ) > $length ) {
			$text = mb_strimwidth( $text, 0, $length, '...' );
		}
	}

	if ( !empty( $text ) ) {
		echo "\n\n";
	}
}
?>

parse a urls from text file and split their components with named labels

The SourceBench — Fri, 04 Dec 2009 23:08:28 +0000

preg_match_all('/(?P<protocol>(?:(?:f|ht)tp|https):\/\/)?(?P<domain>(?:(?!-)(?P<sld>[a-zA-Z\d\-]+)(?<!-)[\.]){1,2}(?P<tld>(?:[a-zA-Z]{2,}\.?){1,}){1,}|(?P<ip>(?:(?(?<!\/)\.)(?:25[0-5]|2[0-4]\d|[01]?\d?\d)){4}))(?::(?P<port>\d{2,5}))?(?:\/(?P<script>[~a-zA-Z\/.0-9-_]*)?(?:\?(?P<parameters>[=a-zA-Z+%&\&\'0-9,.\/_ -]*))?)?(?:\#(?P<anchor>[=a-zA-Z+%&0-9._]*))?/x',$text,$data)

Get a list of urls/domains from a text file

The SourceBench — Fri, 04 Dec 2009 23:05:54 +0000

Start an application from the command line in OSX

The SourceBench — Thu, 03 Dec 2009 22:03:57 +0000

# use open -a followed by the program name and optionally a file name for an output log file
open -a /Applications/TextEdit.app logfile.txt