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< h1 > Updating Features and Adding Components Using Drush< / h1 >
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< p class = "posted text-light" > 21st October 2014< / p >
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< p > If you use the < a href = "http://drupal.org/project/features" > Features module< / a > to manage your Drupal configuration, it can be time consuming to update features through the UI, especially if you are working on a remote server and need to keep downloading and uploading files.< / p >
< p > If you re-create a feature through the UI, you'll be prompted to download a new archive of the feature in its entirety onto your local computer. You could either commit this into a local repository and then pull it remotely, or use a tool such as SCP to upload the archive onto the server and commit it from there. You can simplify this process by using < a href = "http://drush.org" > Drush< / a > .< / p >
< h2 id = "finding-components" > Finding Components< / h2 >
< p > To search for a component, use the < code > drush features-components< / code > command. This will display a list of all components on the site. As we're only interested in components that haven't been exported yet, add the < code > --not-exported< / code > option to filter the results.< / p >
< p > To filter further, you can also use the < code > grep< / code > command to filter the results. For example, < code > drush features-components --not-exported field_base | grep foo< / code > , would only return non-exported field bases containing the word "foo".< / p >
< p > The result is a source and a component, separated by a colon. For example, < code > field_base:field_foo< / code > .< / p >
< h2 id = "exporting-the-feature" > Exporting the Feature< / h2 >
< p > Once you have a list of the components that you need to add, you can export the feature. This is done using the < code > drush features-export< / code > command, along with the feature name and the component names.< / p >
< p > For example:< / p >
< pre > < code class = "language-bash" > $ drush features-export -y myfeature field_base:field_foo field_instance:user-field_foo
< / code > < / pre >
< p > In this example, the base for field_boo and it's instance on the user object is being added to the "myfeature" feature.< / p >
< p > If you are updating an existing feature, you'll get a message informing you that the module already exists and asking if you want to continue. This is fine, and is automatically accepted by including < code > -y< / code > within the command. If a feature with the specified name doesn't exist, it will be created.< / p >
< p > If you're creating a new feature, you can define where the feature will be created using the < code > --destination< / code > option.< / p >
< p > Once complete, you will see a confirmation message.< / p >
< blockquote >
< p > Created module: my feature in sites/default/modules/custom/features/myfeature< / p >
< / blockquote >
< h2 id = "the-result" > The Result< / h2 >
< p > Once finished, the feature is updated in it's original location, so there's no download of the feature and then needing to re-upload it. You can add and commit your changes into Git or continue with your standard workflow straight away.< / p >
< h2 id = "useful-links" > Useful Links< / h2 >
< ul >
< li > < a href = "http://www.drupal.org/project/features" > The Features project page on Drupal.org< / a > < / li >
< li > < a href = "http://www.drushcommands.com/drush-6x/features/features-components" > The "drush features-components" command< / a > < / li >
< li > < a href = "http://www.drushcommands.com/drush-6x/features/features-export" > The "drush features-export" command< / a > < / li >
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Tags:
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< a href = "https://www.oliverdavies.uk/blog/tags/drupal" > drupal< / a > , < a href = "https://www.oliverdavies.uk/blog/tags/drupal-planet" > drupal-planet< / a > , < a href = "https://www.oliverdavies.uk/blog/tags/drush" > drush< / a > , < a href = "https://www.oliverdavies.uk/blog/tags/features" > features< / a > < / p >
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< h2 > About the Author< / h2 >
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< p > Oliver Davies is a Web Developer, System Administrator and Drupal specialist based in the UK. He is a Senior Developer at < a href = "https://microserve.io" > Microserve< / a > and also provides freelance consultancy services for Drupal websites, PHP applications and Linux servers.< / p >
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