Pavlenko Sergey. Drush: using and creating custom commands. DrupalCamp Kyiv 2011

Drush: using and creating
custom commands

Использование Drush
Successful Development LP

Gold Sponsor of
DrupalCamp Kyiv 2011

Silver Sponsors of
DrupalCamp Kyiv 2011

Scheme

Administration of drupal by command line:
main benefits.

Most interesting ways of using.

How this work.

Drush_macros: simple drush extention for
example.

Administration of drupal by
command line: main benefits

Drush: More Beer, Less Effort:

Save time

Forgot about php timeout (and some restrictions of php)

Don't need remember all.

Automatization (repeating of actions)

Forgot about php timeout (and
some other restrictions of php)

We can hadle have processes

Batch processes

Using bash scripts

Don't need remember all.

We can pay more attention on development

Forgot about some issues in drupal web-
interface using

Don't need pay too many attention for file
system (locations of some module folder and
other)

Automatization (repeating of
actions)

Use bash aliases

Launching by cron

Launching commands queue by 1 command

Most interesting ways of using.

Installation in Ubuntu

Installation in Unix-like operation systems

Installation in MS Windows

Main commands in possibilities

Installtion in Ubuntu

sudo apt-get install drush

Pathes:

/usr/share/drush

/etc/drush

Installation in Unix-like OS

Unpuck in any required dirrectory

Using alias drush='/path/to/drush'

Installation some required packages

Solving
Instractions for drush installation in Windows:


http://drupal.org/node/594744


http://www.starbowconsulting.com/node/103


http://vimeo.com/15371661 — Video installation WAMP, Drush & Drupal for Windows 7


Required packages:

http://gnuwin32.sourceforge.net/packages/libarchive.htm

http://gnuwin32.sourceforge.net/packages/gzip.htm

http://gnuwin32.sourceforge.net/packages/wget.htm

http://gnuwin32.sourceforge.net/packages/gtar.htm
Environment Pathes: ;C:php;C:drush;C:Program Files (x86)GnuWin32bin

Where is work:


Windows server 2008, Windows server 2008, Windows Vista 64-bit Business, Windows Vista 32-bit Business, Windows Vista
32-bit Home Premium, Windows XP SP3 32-bit, Windows 7 Home Premium 32-bit, Windows 7 Enterprise 64-bit

Use cases

cache-clear (cc) - Clearing of cache

image-flush - Fushes images of image-styles

site-install

site-upgrade
и т.д.

Coding drive development
and drush

features-diff

features-list

features-revert

features-update

Drush API

http://drupalcontrib.org/api/drupal/contributions--drush--docs--drush.api.php/7

Hooks:
• hook_drush_init()
• drush_COMMAND_init()
• drush_hook_COMMAND_validate()
• drush_hook_pre_COMMAND()
• drush_hook_COMMAND()
• drush_hook_post_COMMAND()
• drush_hook_post_COMMAND_rollback()
• drush_hook_COMMAND_rollback()
• drush_hook_pre_COMMAND_rollback()
• drush_hook_COMMAND_validate_rollback()
• hook_drush_exit()

Build your drush
extention

Create COMMANDFILE.drush.inc
Drush searches for commandfiles in the following
locations:

The "/path/to/drush/commands" folder.

Folders listed in the 'include' option (see
`drush topic docs-configuration`).

The system-wide drush commands folder,
e.g. /usr/share/drush/commands

The ".drush" folder in the user's HOME folder.

All modules in the current Drupal installation

Implement
COMMANDFILE_drush_help()
function sandwich_drush_help($section) {
switch ($section) {
case 'drush:make-me-a-sandwich':
return dt("... brief help summary
goes here ...");
}
}

Implement
COMMANDFILE_drush_command()

'aliases': Provides a list of shorter names for the command.

'deprecated-aliases': Works just like 'aliases', but does not appear in help.

'callback': Name of function to invoke for this command

'callback arguments': An array of arguments to pass to the callback.

'description': Description of the command.

'bootstrap': Drupal bootstrap level. Valid values are:

DRUSH_BOOTSTRAP_DRUSH

DRUSH_BOOTSTRAP_DRUPAL_ROOT

DRUSH_BOOTSTRAP_DRUPAL_SITE

DRUSH_BOOTSTRAP_DRUPAL_CONFIGURATION

DRUSH_BOOTSTRAP_DRUPAL_DATABASE

DRUSH_BOOTSTRAP_DRUPAL_FULL

DRUSH_BOOTSTRAP_DRUPAL_LOGIN

DRUSH_BOOTSTRAP_MAX

Implement
COMMANDFILE_drush_command()

Usefull functions:

drush_prompt($prompt, $default = NULL,
$required = TRUE);

drush_print($string);

drush_confirm($message);

Example of input:
$stdin = fopen("php://stdin","r");
$macros_name = fgetc($stdin);
…

Drush_macros: simple drush
extention for example.

Link for downloading will be later


Aim: recording and launching commands by 1
commands, recording drush/bash commands,
saving in drush inveronment

Using drush_macros

drush cli
mstart — start «recording» bash/drush commands
mstop — stop «recording» bash/drush commands
macros-save — save queue of commands by 1
name
exit — exit from drush cli mode

After that we can run queue of commands by 1
command in drush cli

Questions
 chewie@sfdev.com
 Skype: chew1e_serge

Successful Development LP
http://php.sfdev.com

Pavlenko Sergey. Drush: using and creating custom commands. DrupalCamp Kyiv 2011

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Pavlenko Sergey. Drush: using and creating custom commands. DrupalCamp Kyiv 2011