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Documentation | 2025.5

# Configuration overview

This section provides an overview of all the possible configuration blocks in the `SWARM_ROOT/data/config.php` file.

While the syntax of this example is correct, it includes configuration values that cannot work.

Ensure that you adjust the configuration appropriately for your P4 Code Review installation before using this example in testing or production.

If you make a configuration change, P4 Code Review will not use it until the configuration cache has been reloaded, this forces P4 Code Review to use the new configuration.

You must be an admin or super user to reload the P4 Code Review config cache. Navigate to the User id dropdown menu, select System Information, click the Cache Info tab, and click the Reload Configuration button.

Click on any link in the configuration overview below to see a detailed description of that configurable.

    <?php
        return array(
            'activity' => array(
                'ignored_users' => array(
                    'p4dtguser',
                    'system',
                ),
            ),
            'ai_review' => array(
                 // Please read Perforce's Generative AI policy before enabling this feature.
                 // See https://www.perforce.com/generative-ai-policy
                 // The AI configuration below can be used to integrate an OpenAI vendor with P4 Code Review.
                 // To integrate a generic AI model with P4 Code Review,
                 // see How to set up a generic AI model integration for P4 Code Review.
                 'enabled' => false, // set to true to enable the AI review feature
                 'data_retention_lifetime' => '30 days',  // Delete AI summary records that are older than the
    					  	      // value provided. By default, this value is 30 days.
    						      // Enter a value in 'days' or 'months'.
    						      // For example, '30 days' or '2 months'.
    						      // A cron job is required to remove the
    						      // AI summaries on a schedule.
    	    					      // See Set up a cron job to delete AI summaries.
                'timeout' => 30, // Setting timeout for the request sent from p4 code review to AI vendor
                                 //  Timeout set in seconds
                'ai_vendors' => array(
                    'ai_model1' => array(
                        'ai_vendor'        => 'openAI', // name of the AI provider being used
                                                        // See AI for code analysis for how to configure other AI vendors

                        'ai_model'         => 'gpt-4',
                        'ai_package_id'    => '1', // Ensure this remains as '1'. Do not modify the ai_package_id.
                        'ai_package_key'   => 'openaiwithexplaincodeongpt4', // This is intended for future use when we
                                                                             // will support multiple models and have an
                                                                             // AI configuration page in the UI.
                        'ai_package_value' => 'Open AI With Explain Code On GPT4', // This is used to display the model
                                                                                   // type in the summary of the AI
                                                                                   // vendor's response.
                        'ai_package_type'  => "Explain the following code:", // This is the prompt for the AI to follow.
                                                                             // You can modify the prompt for purposes other
                                                                             // than explaining the code, or to request
                                                                             // output in a specific language.
                        'api_key'          => $SECRET_KEY, // Paste your copied OpenAI API key here
                        'ai_min_char_limit'=> 4, // Minimum number of characters required in the content to be submitted
                                                 // to the AI vendor for analysis. Defaults to 4 characters.
                        'ai_max_char_limit'=> 31000, // The maximum number of characters that can be submitted to the
                                                     // AI vendor for analysis. Defaults to 31000 characters.
                        'ai_comment_prompts' => [
                            'improve_comment' => 'You are a writing assistant helping users improve short
                                 comments or messages. Please revise this input text to make it clearer, more professional, and
                                 appropriate for the intended context. Preserve the original intent and tone unless it is unclear or
                                 inappropriate. If the comment is vague, suggest a more specific version. Avoid making the text
                                 overly formal unless necessary.Return only the improved version of the text, without explanations. For this
                                 statement: ',
                            'summarize_text' => 'You are a summarization assistant helping users condense their
                                 writing into a clear and concise summary. Please summarize this text in a way that preserves the key
                                 points and intent. Use plain language and keep the summary brief and easy to understand. If the
                                 original text includes action items, decisions, or important context, make sure those are included
                                 in the summary.Return only the summary, without explanations or commentary. For this statement: ',
                            'fix_spelling_and_grammar' => 'You are a writing assistant helping users correct
                                 spelling, grammar, and punctuation in short comments or messages. Please correct any spelling,
                                 grammar, punctuation, or basic sentence structure issues. Do not change the tone, intent, or style
                                 unless necessary to fix the grammar. Keep the revised version natural and readable.Return only the
                                 corrected version of the text, without explanations. For this statement: ',
                            'custom_prompt' => '',
                    ),
                ),
            ),
            'archives' => array(
                'max_input_size'    => 512 * 1024 * 1024, // 512M (in bytes)
                'archive_timeout'   => 1800,              // 30 minutes
                'compression_level' => 1,                 // 0-9
                'cache_lifetime'    => 60 * 60 * 24,      // 1 day
            ),
            'avatars' => array(
                'http_url'  => 'http://www.gravatar.com/avatar/{hash}?s={size}&d={default}',
                'https_url' => 'https://secure.gravatar.com/avatar/{hash}?s={size}&d={default}',
            ),
            'comments' => array(
                 'notification_delay_time'    => 1800, // Default to 30 minutes 1800 seconds
                 'threading'     => array(
                     'max_depth' => 4, // default depth 4, to disable comment threading set to 0
                 ),
            ),
            'depot_storage' => array(
                'base_path'  => '//depot_name',
            ),
            'diffs' => array(
                'max_diffs'           => 1500,   // maximum number of lines displayed in a diff
                                                 // From 2025.2 onwards, this is only available in
                                                 // the classic view of the review page.
                'max_total_diff_size' => 200000, // maximum size of the total diffs of a file in bytes, defaults to 0.2 MB
                                                 // From 2025.2 onwards, this is only available in
                                                 // the new view of the review page.
            ),
            'environment' => array(
                'mode'         => 'production',
                'hostname'     => 'myswarm.hostname',
                'external_url' => null,
                'base_url'     => null,
                'logout_url'   => null, // defaults to null
                'vendor'       => array(
                    'emoji_path' => 'vendor/gemoji/images',
                ),
            ),
            'files' => array(
                'max_size'         => 1000 * 1024, //1MB (in bytes),
                'download_timeout' => 1800,
                'allow_edits' => true, // default is true
            ),
            'groups' => array(
                'super_only'  => true, // default value is false
            ),
            'http_client_options'   => array(
                'timeout'       => 10, // default value is 10 seconds
                'sslcapath'     => '', // path to the SSL certificate directory
                'sslcert'       => '', // the path to a PEM-encoded SSL certificate
                'sslpassphrase' => '', // the passphrase for the SSL certificate file
                'hosts'         => array(), // optional, per-host overrides. Host as key, array options as values
            ),
            'jira' => array(
                'host'            => '', // URL for your installed Jira web interface (start with https:// or  http://)
                'api_host'        => '', // URL for Jira API access, 'host' is used for Jira API access if 'api_host' is not set
                'user'            => '', // Jira Cloud: the username used to connect to your Atlassian account
    			              // Jira on-premises: the username required for Jira API access
    			              // Jira on-premises with Personal Access Tokens (PATs): the username must be blank
                'password'        => '', // Jira Cloud: a special API token, obtained from https://id.atlassian.com/manage/api-tokens
    			              // Jira on-premises: the password required for Jira API access
    			              // Jira on-premises with Personal Access Tokens (PATs): the Personal Access Token (PAT) obtained from Jira On-premises.
                'job_field'       => '', // optional, if P4DTG is replicating Jira issue IDs to a job field, list that field here
                'link_to_jobs'    => false, // set to true to enable Perforce job links in Jira, P4DTG, and job_field required
                'delay_job_links' => 60, // delay in seconds, defaults to 60 seconds
                'relationship'    => '', // Jira subsection name links are added to defaults to empty, links added to the "links to" subsection
                'ignored_users'   => array(), // Reviews or changes by users specified here are not linked to any Jira issue.
            ),
            'linkify' => array(
                'word_length_limit' => 2048, // limit on the number of characters which a text to be linkified can have
                'target' => '_self',         // opens the URL in the same tab or a new tab, defaults to '_self'. To open the URL in a new tab, set to '_blank'
                'markdown' => array(
                    array(
                        'id'    =>  'jobs',
                        'regex' => '',       // the regular expression used to match the job keyword, default is empty
                        'url'   => '',       // url that matching job numbers are appended to, default is empty
                    ),
                ),
            ),
            'log' => array(
                'priority'     => 3, // 7 for max, defaults to 3
                'reference_id' => false // defaults to false
            ),
            'mail' => array(
                // 'recipients' => array('user@my.domain'),
                'notify_self'   => false,
                'transport' => array(
                    'host' => 'my.mx.host',
                ),
            ),
            'markdown' => array(
                'markdown' => 'safe', // default is 'safe' 'disabled'|'safe'|'unsafe'
            ),
            'mentions' => array(
                'mode'  => 'global',
                'user_exclude_list'  => array('super', 'swarm-admin'),
                'group_exclude_list' => array('testers', 'writers'), // defaults to empty
            ),
            'menu_helpers' => array(
                'MyMenu01' => array( // A short recognizable name for the menu item
                    'id'        => 'custom01',            // A unique id for the menu item. If not included in the array, parent array name is used.
                    'enabled'   => true,                  // When set to true, the menu item is visible. Defaults to true if not included in the array.
                    'target'    => '/module/MyMenuItem/', // The URL or custom module route a menu click takes you to.
                                                          // If not included in array, id is used. If id not included, parent array name is used.
                    'cssClass'  => 'custom_menu',         // The custom CSS class name added to the menu item, appended to h2.menu- in P4 Code Review CSS
                    'title'     => 'MyMenuItem',          // The text that will be shown on the button.
                                                          // If not included in array, id is used. If id not included, parent array name is used.
                    'class'     => '',                    // If not included in array or empty, the menu item is added to the main menu.
                                                          // To add the menu item to the project menu for all of the projects, set to '\Projects\Menu\Helper\ProjectContextMenuHelper'
                    'priority'  => 155,                   // The position the menu item is displayed at in the menu.
                                                          // If not included in the array, the menu item is placed at the bottom of the menu.
                    'roles'     => null,                  // null|'authenticated'|'admin'|'super'
                                                          // If not included in the array, null is the default.
                                                          // Specifies the minimum level of Perforce user that can see the menu item.
                                                          // 'authenticated' = any authorized user, null = unauthenticated users
                ),
            ),
            'notifications' => array(
                'honor_p4_reviews'      => false,
                'opt_in_review_path'    => '//depot/swarm',
                'disable_change_emails' => false,
            ),
            'p4' => array(
                'port'       => 'my-helix-core-server:1666',
                'user'       => 'admin_userid',
                'password'   => 'admin user ticket or password',
                'sso'        => 'disabled', // 'disabled'|'optional'|'enabled'
                                            // default value is 'disabled'
                'proxy_mode' => true, // defaults to true
                'slow_command_logging' => array(
                    3,
                    10 => array('print', 'shelve', 'submit', 'sync', 'unshelve'),
                ),
                'max_changelist_files' => 1000,
                'auto_register_url'    => true,
            ),
            'projects' => array(
                'mainlines' => array(
                    'stable', 'release', // 'main', 'mainline', 'master', and 'trunk' are hardcoded, there is no need to add them to the array
                ),
                'add_admin_only'           => false,
                'add_groups_only'          => array(),
                'edit_name_admin_only'     => false,
                'edit_branches_admin_only' => false,
                'permission_check'         => false,
                'readme_mode'              => 'enabled',
                'fetch'                    => array('maximum' => 0), // defaults to 0 (disabled)
                'allow_view_settings'      => true, // defaults to true
            ),
            'queue'  => array(
                'workers'             => 3,    // defaults to 3
                'worker_lifetime'     => 595,  // defaults to 10 minutes (less 5 seconds)
                'worker_task_timeout' => 1800, // defaults to 30 minutes
                'worker_memory_limit' => '1G', // defaults to 1 gigabyte
            ),
            'redis' => array(
                'options' => array(
                    'password' => null, // Defaults to null
                    'namespace' => 'Swarm',
                    'server' => array(
                        'host' => 'localhost', // Defaults to 'localhost' or enter your Redis server hostname
                        'port' => '7379', // Defaults to '7379' or enter your Redis server port
                    ),
                ),
                'items_batch_size' => 100000,
                'check_integrity' => '03:00', // Defaults to '03:00' Use one of the following options:
                                              // 'HH:ii' (24 hour format with leading zeros), the time the integrity check starts each day
                                              // positive integer, the time between integrity checks in seconds. '0' = integrity check disabled
                'population_lock_timeout' => 300, // Timeout for initial cache population. Defaults to 300 seconds.
            ),
            'reviews' => array(
                'patterns' => array(
                    'octothorpe' => array(     // #review or #review-1234 with surrounding whitespace/eol
                        'regex'  => '/(?P<pre>(?:\s|^)\(?)\#(?P<keyword>review|append|replace)(?:-(?P<id>[0-9]+))?(?P<post>[.,!?:;)]*(?=\s|$))/i',
                        'spec'   => '%pre%#%keyword%-%id%%post%',
                        'insert' => "%description%\n\n#review-%id%",
                        'strip'  => '/^\s*\#(review|append|replace)(-[0-9]+)?(\s+|$)|(\s+|^)\#(review|append|replace)(-[0-9]+)?\s*$/i',
                    ),
                    'leading-square' => array(     // [review] or [review-1234] at start
                        'regex'  => '/^(?P<pre>\s*)\[(?P<keyword>review|append|replace)(?:-(?P<id>[0-9]+))?\](?P<post>\s*)/i',
                        'spec'  => '%pre%[%keyword%-%id%]%post%',
                    ),
                    'trailing-square' => array(     // [review] or [review-1234] at end
                        'regex'  => '/(?P<pre>\s*)\[(?P<keyword>review|append|replace)(?:-(?P<id>[0-9]+))?\](?P<post>\s*)?$/i',
                        'spec'   => '%pre%[%keyword%-%id%]%post%',
                    ),
                ),
    	    'filters' => array(
                    'filter-max' => 15,
                    'result_sorting' => true,
      	        'date_field' => 'updated', // 'created' displays and sorts by created date, 'updated' displays and sorts by last updated
    	    ),
                'cleanup' => array(
                    'mode'        => 'user', // auto - follow default, user - present checkbox(with default)
                    'default'     => false,  // clean up pending changelists on commit
                    'reopenFiles' => false,   // re-open any opened files into the default changelist
                ),
                'statistics' => array(
                    'complexity' => array(
                        'calculation' => 'default', // 'default|disabled'
                        'high' => 300,
                        'low' => 30
                    ),
                ),
                'allow_author_change'             => true,
                'allow_author_obliterate'         => false,
                'commit_credit_author'            => true,
                'commit_timeout'                  => 1800, // 30 minutes
                'disable_approve_when_tasks_open' => false,
                'disable_commit'                  => true,
                'disable_self_approve'            => false,
                'end_states'                      => array('archived', 'rejected', 'approved:commit'),
                'expand_all_file_limit'           => 10,
                'expand_group_reviewers'          => false,
                'ignored_users'                   => array(),
                'max_secondary_navigation_items'  => 6,  // defaults to 6
                'max_files'                       => 0,  // defaults to 0
                'auto_resolve'                    => false // defaults to false
                'moderator_approval'              => 'any', // 'any|each'
                'more_context_lines'              => 10, // defaults to 10 lines
                'process_shelf_delete_when'       => array(),
                'sync_descriptions'               => true,
                'unapprove_modified'              => true,
            ),
            'search' => array(
                'maxlocktime'     => 5000, // 5 seconds, in milliseconds
                'p4_search_host'  => '',   // optional URL to Helix Search Tool
            ),
            'security'  => array(
                'disable_system_info'      => false,
                'email_restricted_changes' => false,
                'emulate_ip_protections'   => false,  // defaults to false
                'https_port'               => null,
                'https_strict'             => false,
                'https_strict_redirect'    => true,
                'x_frame_options'        => 'SAMEORIGIN', // X-Frame-Options header to send - set false to disable
                'x_xss_protection'       => '1; mode=block', // X-XSS-Protection header to send - set 0 to disable
                'x_content_type_options' => 'nosniff', // X-Content-Type-Options header to send
                'referrer_policy'        => 'strict-origin-when-cross-origin', // Referrer-Policy header to send
                'strict_transport_security_policy' => 'max-age=15724800', // Strict-Transport-Security header to send
                'subresource_integrity'  => '', // Subresource-Integrity header to send - pattern: script-src `hashValue`
                'content_security_policy'=> '', // Content-Security-Policy header to send
                'permissions_policy'     => '', // Permissions-Policy header to send - pattern: geolocation=(self 'https://ex.com'), camera=(), microphone=()
                'forwarded_address'      => false // X-Forwarded-For header used for systems that are running load balancers or proxies in front of Helix P4 Code Review
                'auto_create_user'       => '', // By default, no value is set, which means no auto-creation of users will happen.
                                                // To allow auto-creation of users, set to true.
                'require_login'            => true,
                'prevent_login'            => array(
                    'service_user1',
                    'service_user2',
                ),
            ),
            'session'  => array(
                'cookie_lifetime'            => 0, // lifetime in seconds, default value is 0=expire when browser closed
                'remembered_cookie_lifetime' => 60*60*24*30, // lifetime in seconds, default value is 30 days
                'cookie_samesite'            => 'lax' // SameSite attribute to prevent the web browser from sending the cookie in cross-site requests
                                                       // default is 'lax' 'strict'|'lax'|'none'
                'user_login_status_cache'    => 10, // Set in seconds, default value is 10 seconds.
                                                    // Set to 0 to disable the cache and make P4 Code Review
                                                    // check the user login status for every call to Helix Server.
                'gc_maxlifetime'             => 60*60*24*30, // lifetime in seconds, default value is 30 days
                'gc_divisor'                 => 100, // 100 user requests
            ),
            'short_links' => array(
                'hostname'     => 'myho.st',
                'external_url' => 'https://myho.st:port/sub-folder',
            ),
            'slack' => array(
                 'token' => 'TOKEN',
                 'project_channels'             => array(
                                                     'myproject' => array('myproject-channel',), // The P4 Code Review project ID must be in lower case letters.
                                                                                                 // For project 'myproject' the slack notification
                                                                                                 // will go into the Slack channel 'myproject-channel'.
                 ),
                 'summary_file_names'           => false, // Attaches the file to the original notification message sent to a Slack channel.
                 'bypass_restricted_changelist' => false, // Allows P4 Code Review to post notification messages to a Slack channel when a change is committed
                                                          // or a review is created for a restricted changelist, default value is false.
                 'summary_file_limit'           => 10, // Limits the number of files shown in the original notification message sent to a Slack channel, default value is 10.
                 'user' => array(
                      'enabled'                 => true, // Forces the Swarm app to use the custom username, overrides the P4 Code Review app details.
                      'name'                    => 'Helix Swarm', // This is the username shown in the Slack channel when a notification is posted.
                      'icon'                    => 'URL', // This is the avatar icon shown in the Slack channel
                                                          // when a notification is posted, overrides the avatar set in the P4 Code Review app.
                      'force_user_header'       => false, // The Slack notification shows the username and avatar only for the first post by a user, default value is false.
                 ),
            ),
            'tag_processor' => array(
                'tags' => array(
                    'wip' => '/(^|\s)+#wip($|\s)+/i'
                ),
            ),
            'test_definitions' => array(
                'project_and_branch_separator' => ':',
            ),
            'translator' => array(
                'detect_locale'             => true,
                'locale'                    => array("en_GB", "en_US"),
                'translation_file_patterns' => array(),
                'non_utf8_encodings'        => array('sjis', 'euc-jp', 'windows-1252'),
                'utf8_convert' => true,
            ),
            'upgrade' => array(
                'status_refresh_interval' => 10,	// Refresh page every 10 seconds
                'batch_size' => 1000,	// Fetch 1000 reviews to lower memory usage
            ),
            'users' => array(
               'dashboard_refresh_interval' => 300000, // Default 300000 milliseconds
               'display_fullname'           => true,
               'settings' => array(
                  'review_preferences' => array(
                      'show_comments_in_files'             => true,
                      'view_diffs_side_by_side'            => true,
                      'show_space_and_new_line_characters' => false,
                      'ignore_whitespace'                  => false,
                  ),
                  'time_preferences' => array(
                      'display'  => 'Timeago', // Default to 'Timeago' but can be set to 'Timestamp'
                  ),
               ),
            ),
            'workflow' => array(
                'enabled' => true, // Switches the workflow feature on. Default is true
            ),
    	'xhprof' => array(
                'slow_time'      => 3,
                'ignored_routes' => array('download', 'imagick', 'libreoffice', 'worker'),
            ),
            'saml' => array(...),  // This configurable will be removed from P4 Code Review in a later release.
        );

The P4 Code Review configuration file does not include PHP's standard closing tag (?>).

This is intentional as it prevents unintentional whitespace from being introduced into P4 Code Review's output, which would interfere with P4 Code Review's ability to control HTTP headers. Debugging problems that result from unintentional whitespace can be challenging, since the resulting behavior and error messages often appear to be misleading.

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