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Omeka S

Omeka S is a web publication system for universities, galleries, libraries, archives, and museums. It consists of a local network of independently curated exhibits sharing a collaboratively built pool of items, media, and their metadata.

Installation

Requirements

  • Linux
  • Apache
  • MySql 5.5.3+ and the MySQL driver for PDO
  • PHP 5.6+ (the latest stable version preferred) and the PHP extensions for PDO

Gotchas

  • The default library for generating thumbnails is ImageMagick, at least version 6.7.5. Older versions will not correctly produce thumbnails. See local.config.php options below.

Installing from GitHub

  1. Clone this repository in your Apache web directory:
    • $ git clone https://github.com/omeka/omeka-s.git
  2. Change into the Omeka S directory:
    • $ cd omeka-s
  3. Perform first-time setup:
    • $ npm install
    • $ npm install --global gulp-cli (if you do not already have gulp installed)
    • $ gulp init
  4. Open config/database.ini and add your MySQL username, password, database name, and host name. The user and database must be created before this step.
  5. Make sure the files/ directory is writable by Apache.
  6. In your web browser, navigate to the omeka-s directory, where you can complete installation.

Installing from released zip file

  1. Download the latest release from the release page
  2. Open config/database.ini and add your MySQL username, password, database name, and host name. The user and database must be created before this step.
  3. Make sure the files/ directory is writable by Apache.
  4. In your web browser, navigate to the omeka-s directory, where you can complete installation.

You can find Omeka-specific code under application/.

Updating

Make a backup copy of your entire site and its database!

Updating from GitHub

  1. git pull as usual. Before the official release, latest code will be on branch 'develop'.
  2. From the Omeka S root directory, run gulp deps to make sure dependencies are up to date.
  3. Compare changes in /config/local.config.php and /config/local.config.php.dist. Some default configurations might have changed, so you might need to reconcile changes to the distributed configuration with your local configuration (e.g., a path to PHP specific to your server, dev mode settings, etc.)
  4. In your web browser, go to your site and run any migrations that are needed.

Updating from released zip file

  1. Download the latest release from the release page
  2. Make a copy of your /config/local.config.php file.
  3. Make a copy of your /modules and /themes directories.
  4. Make a copy of your /files directory.
  5. Remove all Omeka S files, and replace them with the files from the updated zip file.
  6. Replace your original /config/local.config.php file, and the /modules, /themes, and /files directories that you copied.
  7. In your web browser, go to your site and run any migrations that are needed.

local.config.php options

  • thumbnailer Default is Omeka\File\ImageMagickThumbnailer. Also available are Omeka\File\IMagickThumbnailer and Omeka\File\GdThumbnailer
  • phpcli_path Default is to attempt to detect correct path to PHP. Use this option to specify a path if needed in your server configuration. For example:
    'cli' => array(
        'phpcli_path' => '/usr/bin/php55',
    ),

Libraries

Omeka uses the following libraries, among others:

Coding Standards

Omeka development adheres to the Zend Framework 2 Coding Standards and uses the git-flow branching model.