LazyPressDeveloping for WordPress

on the Command Line

Why CLI?

•All Keyboard Commands

•Efficient

•Fast

•Does Not Require the Web Server resources

Installing WP-CLI

> curl http://wp-cli.org/installer.sh | bash

> PATH=$HOME/.composer/bin:$PATH

> source $HOME/.composer/vendor/wp-cli/wp-cli/utils/wp-completion.bash

Using the wp command

•wp core (config|download|install|update)

•wp comment (approve|count|spam|trash)

•wp export

•wp option (add|update|delete|get)

•wp plugin (install|activate|list|update)

•Etc

Extending WP-CLI

•if( defined( ‘WP_CLI’ ) && WP_CLI )

•Extend WP_CLI_Command

•Public methods become commands

•Methods take $args and $assoc_args

Extending WP-CLI

•$args is an array of positional elements

•e.g. wp command Hello World

•$args[0] == ‘Hello’

•$args[1] == ‘World’

Extending WP-CLI

•$assoc_args is an array of flags

•e.g. wp command --foo=Hello --bar=World

•$assoc_args[‘foo’] == ‘Hello’

•$assoc_args[‘bar’] == ‘World’

Declaring Syntax

•Methods should have a Docblock using @synopsis

•Square brackets designate optional

•@synopsis cmd <foo> --bar=<bar> [--baz=<baz>]

Printing to the CLI

•Use the line() method from the WP_CLI class

•WP_CLI::line(‘Hello World is a Success!’);

Defining the Command

•Use the add_command() method from the WP_CLI class

•Argument 1 is the command name

•Argument 2 is the Class name

•WP_CLI::add_command( ‘hello’, ‘world’);

•Running wp hello instantiates the world class

Resources•WP-CLI - http://wp-cli.org

•WP-CLI on Github - http://github.com/wp-cli

•Sample Code - https://github.com/technosailor/baltimorephp-wpcli

•BreweryDB - http://brewerydb.com

•This Presentation: http://www.slideshare.net/technosailor/wp-cli